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Devi R, Thakur R, Kapoor S, Joshi SJ, Kumar A. Comparative assessment on lignocellulose degrading enzymes and bioethanol production from spent mushroom substrate of Calocybe indica and Volvariella volvacea. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-26988-1. [PMID: 37071368 DOI: 10.1007/s11356-023-26988-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Accepted: 04/09/2023] [Indexed: 06/19/2023]
Abstract
In the current study, we compared the production of extracellular lignocellulose degrading enzymes and bioethanol from the spent mushroom substrate (SMS) of Calocybe indica and Volvariella volvacea. From SMS at different stages of the mushroom development cycle, ligninolytic and hydrolytic enzymes were analysed. The activities of lignin-degrading enzymes, including lignin peroxidase (LiP), laccase, and manganese peroxidase (MnP) were maximal in the spawn run and primordial stages, while hydrolytic enzymes including xylanase, cellobiohydrolase (CBH), and carboxymethyl cellulase (CMCase) showed higher activity during fruiting bodies development and at the end of the mushroom growth cycle. SMS of V. volvacea showed relatively lower ligninase activity than the SMS of C. indica, but had the maximum activity of hydrolytic enzymes. The enzyme was precipitated with acetone and further purified with the DEAE cellulose column. The maximum yield of reducing sugars was obtained after hydrolysis of NaOH (0.5 M) pretreated SMS with a cocktail of partially purified enzymes (50% v/v). After enzymatic hydrolysis, the total reducing sugars were 18.68 ± 0.34 g/l (SMS of C. indica) and 20.02 ± 0.87 g/l (SMS of V. volvacea). We observed the highest fermentation efficiency and ethanol productivity (54.25%, 0.12 g/l h) obtained from SMS hydrolysate of V. volvacea after 48 h at 30 ± 2 °C, using co-culture of Saccharomyces cerevisiae MTCC 11,815 and Pachysolen tannophilus MTCC 1077.
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Affiliation(s)
- Rajni Devi
- Department of Microbiology, Punjab Agricultural University, 141004, Ludhiana, Punjab, India
| | - Richa Thakur
- Department of Biochemistry, Punjab Agricultural University, 141004, Ludhiana, Punjab, India
| | - Shammi Kapoor
- Department of Microbiology, Punjab Agricultural University, 141004, Ludhiana, Punjab, India
| | - Sanket J Joshi
- Oil & Gas Research Center, and Central Analytical and Applied Research Unit, Sultan Qaboos University, 123, Muscat, Oman.
| | - Amit Kumar
- Department of Biotechnology, School of Engineering and Technology, Sharda University, Greater Noida, India
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Halysh V, Romero-García JM, Vidal AM, Kulik T, Palianytsia B, García M, Castro E. Apricot Seed Shells and Walnut Shells as Unconventional Sugars and Lignin Sources. Molecules 2023; 28:molecules28031455. [PMID: 36771117 PMCID: PMC9918925 DOI: 10.3390/molecules28031455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/23/2023] [Accepted: 01/30/2023] [Indexed: 02/05/2023] Open
Abstract
The present study focuses on using apricot seeds shells and walnut shells as a potential renewable material for biorefinery in Ukraine. The goal of the research work was to determine the relationship between the chemical composition of solid residues from biomass after acid pretreatment with H2SO4, alkaline pretreatment with NaOH, and a steam explosion pretreatment and the recovery of sugars and lignin after further enzymatic hydrolysis with the application of an industrial cellulase Cellic CTec2. Apricot seeds shells and walnut shells consist of lots of cellulose (35.01 and 24.19%, respectively), lignin (44.55% and 44.63%, respectively), hemicelluloses (10.77% and 26.68%, respectively), and extractives (9.97% and 11.41%, respectively), which affect the efficiency of the bioconversion of polysaccharides to sugars. The alkaline pretreatment was found to be more efficient in terms of glucose yield in comparison with that of acid and steam explosion, and the maximum enzymatic conversions of cellulose reached were 99.7% and 94.6% for the solids from the apricot seeds shells and the walnut shells, respectively. The maximum amount of lignin (82%) in the residual solid was obtained during the processing of apricot seed shells submitted to the acid pretreatment. The amount of lignin in the solids interferes with the efficiency of enzymatic hydrolysis. The results pave the way for the efficient and perspective utilization of shells through the use of inexpensive, simple and affordable chemical technologies, obtaining value-added products, and thus, reducing the amount of environmental pollution (compared to the usual disposal practice of direct burning) and energy and material external dependency (by taking advantage of these renewable, low-cost materials).
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Affiliation(s)
- Vita Halysh
- Department of Ecology and Technology of Plant Polymers, Faculty of Chemical Engineering, Igor Sikorsky Kyiv Polytechnic Institute, Peremogy Avenu 37/4, 03056 Kyiv, Ukraine
- Laboratory of Kinetics and Mechanisms of Chemical Reactions on the Surface of Solids, Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, General Naumov Str., 17, 03164 Kyiv, Ukraine
| | - Juan Miguel Romero-García
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
- Center for Advanced Studies in Earth Sciences, Energy and Environment (CEACTEMA), Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
- Correspondence: (J.M.R.-G.); (E.C.); Tel.: +34-9532182163 (E.C.)
| | - Alfonso M. Vidal
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
| | - Tetiana Kulik
- Laboratory of Kinetics and Mechanisms of Chemical Reactions on the Surface of Solids, Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, General Naumov Str., 17, 03164 Kyiv, Ukraine
| | - Borys Palianytsia
- Laboratory of Kinetics and Mechanisms of Chemical Reactions on the Surface of Solids, Chuiko Institute of Surface Chemistry, National Academy of Sciences of Ukraine, General Naumov Str., 17, 03164 Kyiv, Ukraine
| | - Minerva García
- Tecnológico Nacional de México/Instituto Tecnológico de Zitácuaro, Av. Tecnológico No. 186 Manzanillos, Zitácuaro 61534, Michoacán, Mexico
| | - Eulogio Castro
- Department of Chemical, Environmental and Materials Engineering, Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
- Center for Advanced Studies in Earth Sciences, Energy and Environment (CEACTEMA), Universidad de Jaén, Campus Las Lagunillas s/n, 23071 Jaén, Spain
- Correspondence: (J.M.R.-G.); (E.C.); Tel.: +34-9532182163 (E.C.)
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Wan S, Tan J, Jiang H, Chu Q, Wu S, Jin Y. Lignin detaching from the oxidative delignified softwood during enzymatic hydrolysis and its effect on carbohydrate saccharification. Int J Biol Macromol 2023; 227:664-672. [PMID: 36521709 DOI: 10.1016/j.ijbiomac.2022.12.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 11/21/2022] [Accepted: 12/06/2022] [Indexed: 12/15/2022]
Abstract
Most studies about the influence of lignin on enzymatic digestibility of lignocellulose have focused on the content and properties, but less on the detaching behavior of lignin. The samples were prepared from Pinus massoniana wood chips by kraft cooking followed by delignification using oxygen/alkali (KP-O) and chlorine dioxide (KP-D), respectively. Two oxidative delignified samples with a similar lignin content were subject to enzymatic hydrolysis at both pH of 5.0 and 5.5 to investigate the effects of lignin detached rate (LDR) on substrate enzymatic digestibility (SED). The LDRs and the SEDs from both samples increased with the enzymatic hydrolysis time, and the situations of KP-D were much higher than those of KP-O under the same enzymatic hydrolysis time. The results of enzymatic hydrolysis at an elevated pH of 5.5 and the changes in concentration of free cellulase of the two samples indicated that the lignin detaching increased the free cellulase concentration, and thus promoted the enzymatic digestibility. Moreover, lignin distribution analysis by X-ray photoelectric spectroscopy and confocal laser scanning microscopy indicated surface lignin being preferentially detached. This work provided a reference for rationally designing pretreatment strategies, which can improve the efficiency of enzyme hydrolysis of lignocellulosic biomass.
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Affiliation(s)
- Shanqi Wan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Light Industry and Food Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Jingjing Tan
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Light Industry and Food Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Huicong Jiang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Light Industry and Food Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Qiulu Chu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Light Industry and Food Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
| | - Shufang Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Light Industry and Food Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China.
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China; College of Light Industry and Food Engineering, Nanjing Forestry University, 159 Longpan Road, Nanjing 210037, China
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Structural Changes of Alkali Lignin under Ozone Treatment and Effect of Ozone-Oxidized Alkali Lignin on Cellulose Digestibility. Processes (Basel) 2022. [DOI: 10.3390/pr10030559] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022] Open
Abstract
In this study, the structural changes of alkali lignin induced by ozonation were investigated, and the effect of ozone-treated alkali lignin and its mechanism on Avicel enzymatic hydrolysis was examined. The physicochemical properties of alkali lignin were analyzed by FTIR, 1H-13C HSQC NMR, and GPC. It was revealed that ozone pretreatment increased the content of carboxyl and/or aldehyde groups and the negative zeta potential of alkali lignin, which enhanced the electrostatic repulsion between alkali lignin and cellulase; The S/G ratio was reduced, indicating the hydrophobic interaction was diminished. The Langmuir adsorption isotherm showed that the cellulase binding strength of ozone pretreated alkali lignin (OL-pH3, OL-pH7, and OL-pH12 were 16.67, 13.87, and 44.05 mL/g, respectively) was significantly lower than that of alkali lignin (161.29 mL/g). The 72 h hydrolysis yields of Avicel added with OL-pH3, OL-pH7, and OL-pH12 were 55.4%, 58.6%, and 54.9% respectively, which were 2.6–6.3% higher than that of Avicel added with AL (52.3%). This research aimed to reduce the non-productive adsorption between cellulase and lignin by investigating the structural changes of lignin caused by ozone treatment. For the first time, we discovered that ozone-treated alkali lignin has a further promotion effect on the enzymatic digestion of cellulose, providing a green and feasible pretreatment process for the enzymatic hydrolysis of lignocellulose and aiding in the more efficient utilization of biomass.
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Mamleeva NA, Kharlanov AN, Kupreenko SY, Chukhchin DG. Main Pathways of the Transformations of Lignocellulosic Material under the Action of Ozone. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421110133] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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6
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Ben’ko EM, Mamleeva NA, Kharlanov AN. Effect of Ozonation of Lignocellulosic Materials on Sorption of Cationic Dye. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2021. [DOI: 10.1134/s0036024421080069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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7
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Kundu C, Samudrala SP, Kibria MA, Bhattacharya S. One-step peracetic acid pretreatment of hardwood and softwood biomass for platform chemicals production. Sci Rep 2021; 11:11183. [PMID: 34045559 PMCID: PMC8160206 DOI: 10.1038/s41598-021-90667-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2021] [Accepted: 05/10/2021] [Indexed: 11/13/2022] Open
Abstract
Lignocellulosic biomass is an attractive renewable resource to produce biofuel or platform chemicals. Efficient and cost-effective conversion systems of lignocellulosic biomass depend on their appropriate pretreatment processes. Alkali or dilute acid pretreatment of biomass requires a high temperature (> 150 °C) to remove xylan (hemicellulosic sugar) and lignin partially. In this study, peracetic acid was used to pretreat biomass feedstocks, including hardwood and softwood species. It was found that the thermally-assisted dilute acid pretreatment of biomass conducted under the mild temperature of 90 °C up to 5 h resulted in the effective removal of lignin from the biomass with a negligible loss of carbohydrates. This thermally-assisted pretreatment achieved 90% of delignification, and this result was compared with the microwave-assisted pretreatment method. In addition, the crystallinity index (CrI), surface morphology, and chemical structure were significantly changed after the acid pretreatment. The biomass digestibility increased significantly with increased reaction time, by 32% and 23% for hardwood and softwood, respectively. From this study, it is clear that peracetic acid pretreatment is an effective method to enrich glucan content in biomass by delignification.
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Affiliation(s)
- Chandan Kundu
- Department of Chemical Engineering, Monash University, Melbourne, 3800, Australia
| | | | - Mahmud Arman Kibria
- Department of Chemical Engineering, Monash University, Melbourne, 3800, Australia
| | - Sankar Bhattacharya
- Department of Chemical Engineering, Monash University, Melbourne, 3800, Australia.
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8
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Chen H, Mao J, Jiang B, Wu W, Jin Y. Carbonate-oxygen pretreatment of waste wheat straw for enhancing enzymatic saccharification. Process Biochem 2021. [DOI: 10.1016/j.procbio.2021.03.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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9
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Rapado P, Faba L, Ordóñez S. Influence of delignification and reaction conditions in the aqueous phase transformation of lignocellulosic biomass to platform molecules. BIORESOURCE TECHNOLOGY 2021; 321:124500. [PMID: 33310411 DOI: 10.1016/j.biortech.2020.124500] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 11/29/2020] [Accepted: 11/30/2020] [Indexed: 06/12/2023]
Abstract
The effect of oxidative and reductive delignification processes on the hydrolysis of pine sawdust at mild conditions (200-1000 ppm of HCl and 140-220 °C) is studied in this work. Dimers and reduced sugars are the main products obtained with the fresh sawdust (>82%), reaching a maximum liquid phase yield of 17% after 8 h, at the strongest conditions. This conversion increases up to almost 40% with the pretreated sawdust, obtaining selectivities higher than 87% of levulinic acid and a well-defined distribution of the relevant platform molecules (sugars, HMF, furfural, levulinic acid) as function of the severity of the reaction, decreasing the humins formation and being possible to define different conditions to maximize each yield. These conclusions were corroborated by the kinetic analysis, obtaining a clear decrease in the energy activation for all the individual steps involved in this process.
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Affiliation(s)
- Paula Rapado
- Catalysis, Reactors and Control Research Group (CRC), Dept. of Chemical and Environmental Engineering, University of Oviedo, Oviedo 33006, Spain
| | - Laura Faba
- Catalysis, Reactors and Control Research Group (CRC), Dept. of Chemical and Environmental Engineering, University of Oviedo, Oviedo 33006, Spain
| | - Salvador Ordóñez
- Catalysis, Reactors and Control Research Group (CRC), Dept. of Chemical and Environmental Engineering, University of Oviedo, Oviedo 33006, Spain.
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10
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Mamleeva NA, Kharlanov AN, Chukhchin DG, Bazarnova NG, Lunin VV. Degradation of the Pine Wood Structure in Ozonolytic Delignification. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2021. [DOI: 10.1134/s1068162020070080] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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11
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Jia Y, Yang C, Shen B, Ling Z, Huang C, Li X, Lai C, Yong Q. Comparative study on enzymatic digestibility of acid-pretreated poplar and larch based on a comprehensive analysis of the lignin-derived recalcitrance. BIORESOURCE TECHNOLOGY 2021; 319:124225. [PMID: 33254454 DOI: 10.1016/j.biortech.2020.124225] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/03/2020] [Revised: 10/01/2020] [Accepted: 10/04/2020] [Indexed: 05/20/2023]
Abstract
Enzymatic digestibility of an acid-pretreated poplar (AP, 42.9%) was superior to that of a similarly acid-pretreated larch (AL, 12.5%). Effects of lignin-related recalcitrance on enzymatic hydrolysis were comprehensively investigated by disrupting the two predominant lignin fractions present in acid-pretreated material (extractable lignin and bulk lignin). Lignin removal and bovine serum albumin (BSA) addition were performed to estimate the relative contributions of lignin towards physical blocking and enzyme binding on enzymatic hydrolysis. The lignin physical blocking played a more significant role in limiting the enzymatic hydrolysis of AL. BSA addition improved enzymatic hydrolysis of AP more significantly than AL. Moreover, the effects of lignin embedded in the lignocellulosic matrix on enzyme non-productive binding were compared with the isolated lignin. It indicated that the lignin distribution would influence the lignin effects on enzyme non-productive binding during enzymatic hydrolysis. Results will give insights towards improvement of enzymatic hydrolysis on acid-pretreated woody biomass.
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Affiliation(s)
- Yuan Jia
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Chundong Yang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Buzhen Shen
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Zhe Ling
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Caoxing Huang
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China
| | - Xin Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China
| | - Chenhuan Lai
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China.
| | - Qiang Yong
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, People's Republic of China; Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing 210037, People's Republic of China
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Benko EM, Chuhchin DG, Malkov AV, Vydrina IV, Novozhilov EV, Lunin VV. Change in the Crystallinity of Wheat Straw during Ozone Treatment. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2020. [DOI: 10.1134/s0036024420060059] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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13
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Wu S, Chen H, Jameel H, Chang HM, Phillips R, Jin Y. Effects of Lignin Contents and Delignification Methods on Enzymatic Saccharification of Loblolly Pine. Ind Eng Chem Res 2020. [DOI: 10.1021/acs.iecr.0c00645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shufang Wu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
- Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Hui Chen
- Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Hasan Jameel
- Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Hou-min Chang
- Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Richard Phillips
- Department of Forest Biomaterials, North Carolina State University, Raleigh, North Carolina 27695, United States
| | - Yongcan Jin
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China
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Mikulski D, Kłosowski G. Hydrotropic pretreatment on distillery stillage for efficient cellulosic ethanol production. BIORESOURCE TECHNOLOGY 2020; 300:122661. [PMID: 31918302 DOI: 10.1016/j.biortech.2019.122661] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 12/18/2019] [Accepted: 12/19/2019] [Indexed: 06/10/2023]
Abstract
Effectiveness of hydrotropic delignification using sodium cumene sulfonate for pretreatment of rye, wheat and maize stillage for further use in the production of bioethanol was evaluated. The highest stillage biomass extractives was obtained for a biomass particle size <1.0 mm, when exposed to 131 °C for 1 h at 20% v/v hydrotrope concentration. It has been shown that hydrotropic treatment causes changes in the stillage biomass structure (increase in porosity) and reduces the lignin content in biomass by 7-17%. Delignification with a hydrotrope also increased the concentration of fermentable sugars in the media prepared with stillage biomass, which led to a higher final ethanol concentration (up to ca. 3.5 g/L). Hydrotropic treatment is an effective way of pretreatment of stillage biomass. It provides a high degree of biomass bioconversion and creates the prospect of integrating the 1st and 2nd generation ethanol production process to more fully utilize the raw material.
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Affiliation(s)
- Dawid Mikulski
- Kazimierz Wielki University, Department of Biotechnology, 85-667 Bydgoszcz ul. K. J. Poniatowskiego 12, Poland
| | - Grzegorz Kłosowski
- Kazimierz Wielki University, Department of Biotechnology, 85-667 Bydgoszcz ul. K. J. Poniatowskiego 12, Poland.
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15
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Study on the Sequential Combination of Bioethanol and Biogas Production from Corn Straw. Molecules 2019; 24:molecules24244558. [PMID: 31842493 PMCID: PMC6943537 DOI: 10.3390/molecules24244558] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 12/09/2019] [Accepted: 12/12/2019] [Indexed: 11/16/2022] Open
Abstract
The objective of this study was to obtain two types of fuels, i.e., bioethanol and biogas, in a sequential combination of biochemical processes from lignocellulosic biomass (corn straw). Waste from the agricultural sector containing lignocellulose structures was used to obtain bioethanol, while the post-fermentation (cellulose stillage) residue obtained from ethanol fermentation was a raw material for the production of high-power biogas in the methane fermentation process. The studies on obtaining ethanol from lignocellulosic substrate were based on the simultaneous saccharification and fermentation (SSF) method, which is a simultaneous hydrolysis of enzymatic cellulose and fermentation of the obtained sugars. Saccharomyces cerevisiae (D-2) in the form of yeast cream was used for bioethanol production. The yeast strain D-2 originated from the collection of the Institute of Agricultural and Food Biotechnology. Volatile compounds identified in the distillates were measured using gas chromatography with flame ionization detector (GC-FID). CH4 and CO2 contained in the biogas were analyzed using a gas chromatograph in isothermal conditions, equipped with thermal conductivity detector (katharometer) with incandescent fiber. Our results show that simultaneous saccharification and fermentation enables production of bioethanol from agricultural residues with management of cellulose stillage in the methane fermentation process.
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16
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Mamleeva NA, Kharlanov AN, Lunin VV. Dynamics of Lignin Destruction in Pine Wood under the Action of Ozone. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2019. [DOI: 10.1134/s0036024419120185] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Rajavat AS, Rai S, Pandiyan K, Kushwaha P, Choudhary P, Kumar M, Chakdar H, Singh A, Karthikeyan N, Bagul SY, Agnihotri A, Saxena AK. Sustainable use of the spent mushroom substrate of Pleurotus florida for production of lignocellulolytic enzymes. J Basic Microbiol 2019; 60:173-184. [PMID: 31663623 DOI: 10.1002/jobm.201900382] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 10/10/2019] [Accepted: 10/11/2019] [Indexed: 11/06/2022]
Abstract
Spent mushroom substrate (SMS), a major byproduct of the mushroom industry, is a lignocellulosic biomass, which contains approximately 57-74.3% of holocellulose fraction. This study was aimed at utilizing SMS of Pleurotus florida for recovery of lignocellulolytic enzymes and sugars and also as a substrate for production of cellulolytic enzymes using different isolates of Trichoderma and Aspergillus under solid-state fermentation (SSF). SMS of P. florida extracts contained significant amounts of laccase (3,015.8 ± 29.5 U/g SMS) and xylanase (1,187.9 ± 12 U/g SMS) activity. Crystallinity pattern and chemical changes in SMS revealed that SMS had a lower crystallinity index (34.2%) as compared with the raw biomass (37.8%), which, in turn, helps in enhancing the accessibility of cellulolytic enzymes to holocellulose. Among the isolates, Trichoderma longibrachiatum A-01 showed maximum activity of endoglucanase (220.4 ± 5.9 U/mg), exoglucanase (78.5 ± 3.2 U/mg) and xylanase (1,550.4 ± 11.6 U/mg) while Aspergillus aculeatus C-08 showed maximum activity of cellobiase (113.9 ± 3.9 U/mg). Extraction with sodium citrate buffer (pH 4.8) showed maximum cellulolytic enzyme activity as compared with other solvents tested. Partial purification of endoglucanase, exoglucanase, xylanase, and cellobiase resulted in 56.3% (1,112.5 U/mg), 48.4% (212.5 U/mg), 44% (4,492.3 U/mg), and 62% (705.0 U/mg) yield with an increase by 5.2-, 4.5-, 4.1-, and 5.0-fold as compared with crude extract. The results reveal that SMS from P. florida could be a potential and cost-effective substrate for production of cellulolytic enzymes from T. longibrachiatum A-01 and A. aculeatus C-08.
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Affiliation(s)
- Asha S Rajavat
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India.,Amity Institute of Microbial Technology, Amity University, Noida, Uttar Pradesh, India
| | - Sudheer Rai
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Kuppusamy Pandiyan
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Prity Kushwaha
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Prassan Choudhary
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Murugan Kumar
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Hillol Chakdar
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Arjun Singh
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Nanjappan Karthikeyan
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Samadhan Y Bagul
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
| | - Abha Agnihotri
- Amity Institute of Microbial Technology, Amity University, Noida, Uttar Pradesh, India
| | - Anil K Saxena
- ICAR-National Bureau of Agriculturally Important Microorganisms, Mau, Uttar Pradesh, India
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Singh YD. Cellulosic bioethanol production from Eragrostis airoides Nees grass collected from Northeast India. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-0952-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022] Open
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19
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Cheng L, Hu X, Gu Z, Hong Y, Li Z, Li C. Characterization of physicochemical properties of cellulose from potato pulp and their effects on enzymatic hydrolysis by cellulase. Int J Biol Macromol 2019; 131:564-571. [DOI: 10.1016/j.ijbiomac.2019.02.164] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Revised: 02/11/2019] [Accepted: 02/28/2019] [Indexed: 11/17/2022]
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Bhalla A, Cai CM, Xu F, Singh SK, Bansal N, Phongpreecha T, Dutta T, Foster CE, Kumar R, Simmons BA, Singh S, Wyman CE, Hegg EL, Hodge DB. Performance of three delignifying pretreatments on hardwoods: hydrolysis yields, comprehensive mass balances, and lignin properties. BIOTECHNOLOGY FOR BIOFUELS 2019; 12:213. [PMID: 31516552 PMCID: PMC6732840 DOI: 10.1186/s13068-019-1546-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Accepted: 08/23/2019] [Indexed: 05/20/2023]
Abstract
BACKGROUND In this work, three pretreatments under investigation at the DOE Bioenergy Research Centers (BRCs) were subjected to a side-by-side comparison to assess their performance on model bioenergy hardwoods (a eucalyptus and a hybrid poplar). These include co-solvent-enhanced lignocellulosic fractionation (CELF), pretreatment with an ionic liquid using potentially biomass-derived components (cholinium lysinate or [Ch][Lys]), and two-stage Cu-catalyzed alkaline hydrogen peroxide pretreatment (Cu-AHP). For each of the feedstocks, the pretreatments were assessed for their impact on lignin and xylan solubilization and enzymatic hydrolysis yields as a function of enzyme loading. Lignins recovered from the pretreatments were characterized for polysaccharide content, molar mass distributions, β-aryl ether content, and response to depolymerization by thioacidolysis. RESULTS All three pretreatments resulted in significant solubilization of lignin and xylan, with the CELF pretreatment solubilizing the majority of both biopolymer categories. Enzymatic hydrolysis yields were shown to exhibit a strong, positive correlation with the lignin solubilized for the low enzyme loadings. The pretreatment-derived solubles in the [Ch][Lys]-pretreated biomass were presumed to contribute to inhibition of enzymatic hydrolysis in the eucalyptus as a substantial fraction of the pretreatment liquor was carried forward into hydrolysis for this pretreatment. The pretreatment-solubilized lignins exhibited significant differences in polysaccharide content, molar mass distributions, aromatic monomer yield by thioacidolysis, and β-aryl ether content. Key trends include a substantially higher polysaccharide content in the lignins recovered from the [Ch][Lys] pretreatment and high β-aryl ether contents and aromatic monomer yields from the Cu-AHP pretreatment. For all lignins, the 13C NMR-determined β-aryl ether content was shown to be correlated with the monomer yield with a second-order functionality. CONCLUSIONS Overall, it was demonstrated that the three pretreatments highlighted in this study demonstrated uniquely different functionalities in reducing biomass recalcitrance and achieving higher enzymatic hydrolysis yields for the hybrid poplar while yielding a lignin-rich stream that may be suitable for valorization. Furthermore, modification of lignin during pretreatment, particularly cleavage of β-aryl ether bonds, is shown to be detrimental to subsequent depolymerization.
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Affiliation(s)
- Aditya Bhalla
- Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, MI 48824 USA
- DOE Great Lakes Bioenergy Research Center (GLBRC), Michigan State University, East Lansing, MI 48824 USA
| | - Charles M. Cai
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA USA
- BioEnergy Science Center (BESC) and Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA
| | - Feng Xu
- Joint BioEnergy Institute (JBEI), Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Sandip K. Singh
- Chemical & Biological Engineering Department, Montana State University, Bozeman, MT 59715 USA
| | - Namita Bansal
- Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, MI 48824 USA
- DOE Great Lakes Bioenergy Research Center (GLBRC), Michigan State University, East Lansing, MI 48824 USA
| | - Thanaphong Phongpreecha
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824 USA
| | - Tanmoy Dutta
- Joint BioEnergy Institute (JBEI), Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Cliff E. Foster
- DOE Great Lakes Bioenergy Research Center (GLBRC), Michigan State University, East Lansing, MI 48824 USA
| | - Rajeev Kumar
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA USA
- BioEnergy Science Center (BESC) and Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA
| | - Blake A. Simmons
- Joint BioEnergy Institute (JBEI), Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Seema Singh
- Joint BioEnergy Institute (JBEI), Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - Charles E. Wyman
- Department of Chemical and Environmental Engineering, University of California, Riverside, CA USA
- BioEnergy Science Center (BESC) and Center for Bioenergy Innovation (CBI), Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA
| | - Eric L. Hegg
- Department of Biochemistry & Molecular Biology, Michigan State University, East Lansing, MI 48824 USA
- DOE Great Lakes Bioenergy Research Center (GLBRC), Michigan State University, East Lansing, MI 48824 USA
| | - David B. Hodge
- DOE Great Lakes Bioenergy Research Center (GLBRC), Michigan State University, East Lansing, MI 48824 USA
- Chemical & Biological Engineering Department, Montana State University, Bozeman, MT 59715 USA
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824 USA
- Division of Sustainable Process Engineering, Luleå University of Technology, Luleå, Sweden
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Costa S, Rugiero I, Larenas Uria C, Pedrini P, Tamburini E. Lignin Degradation Efficiency of Chemical Pre-Treatments on Banana Rachis Destined to Bioethanol Production. Biomolecules 2018; 8:biom8040141. [PMID: 30423995 PMCID: PMC6316140 DOI: 10.3390/biom8040141] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 10/26/2018] [Accepted: 11/02/2018] [Indexed: 01/13/2023] Open
Abstract
Valuable biomass conversion processes are highly dependent on the use of effective pretreatments for lignocellulose degradation and enzymes for saccharification. Among the nowadays available treatments, chemical delignification represents a promising alternative to physical-mechanical treatments. Banana is one of the most important fruit crops around the world. After harvesting, it generates large amounts of rachis, a lignocellulosic residue, that could be used for second generation ethanol production, via saccharification and fermentation. In the present study, eight chemical pretreatments for lignin degradation (organosolv based on organic solvents, sodium hypochlorite, hypochlorous acid, hydrogen peroxide, alkaline hydrogen peroxide, and some combinations thereof) have been tested on banana rachis and the effects evaluated in terms of lignin removal, material losses, and chemical composition of pretreated material. Pretreatment based on lignin oxidation have demonstrated to reach the highest delignification yield, also in terms of monosaccharides recovery. In fact, all the delignified samples were then saccharified with enzymes (cellulase and beta-glucosidase) and hydrolysis efficiency was evaluated in terms of final sugars recovery before fermentation. Analysis of Fourier transform infrared spectra (FTIR) has been carried out on treated samples, in order to better understand the structural effects of delignification on lignocellulose. Active chlorine oxidations, hypochlorous acid in particular, were the best effective for lignin removal obtaining in the meanwhile the most promising cellulose-to-glucose conversion.
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Affiliation(s)
- Stefania Costa
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy.
| | - Irene Rugiero
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy.
| | - Christian Larenas Uria
- Laboratorio de Biotecnología, Universidad Poilitécnica Salesiana, Av. Isabel La Católica N 23-52 y Madrid, Quito-Ecuador 170109, Quito, Ecuador.
| | - Paola Pedrini
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy.
| | - Elena Tamburini
- Department of Life Science and Biotechnology, University of Ferrara, Via L. Borsari 46, 44121 Ferrara, Italy.
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Wang J, Hao X, Yang M, Qin Y, Jia L, Chu J, Zhang J. Impact of lignin content on alkaline-sulfite pretreatment of Hybrid Pennisetum. BIORESOURCE TECHNOLOGY 2018; 267:793-796. [PMID: 30017365 DOI: 10.1016/j.biortech.2018.07.049] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2018] [Revised: 07/08/2018] [Accepted: 07/09/2018] [Indexed: 06/08/2023]
Abstract
This work focuses to investigate the impact of lignin content on chemical compositions, crystallinity, surface characterizations, cellulase adsorption profiles and hydrolysability of Hybrid Pennisetum (HP) after alkaline sulfite pretreatment (ASP). For the HP with lower lignin content, the increase of the cellulose content by ASP was more obvious than raw HP. ASP decreased total lignin content and surface lignin content of HP substrates. HP with lower lignin content (e.g., ∼15%) is suitable for ASP, because a pretty perfect glucose yield (91%) was obtained using a low dosage of enzyme loadings (5 FPU of cellulases/g dry matter). The study provides a potential strategy to efficiently produce platform sugars from HP with reduced lignin content, indicating the importance of reduction HP lignin content properly by breeding or transgenesis programs. The work could also help elucidate the mechanism of alkaline sulfite pretreatment for efficient production of fermentable sugars from lignocelluloses.
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Affiliation(s)
- Jingfeng Wang
- College of Forestry, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China
| | - Xixun Hao
- College of Forestry, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China
| | - Ming Yang
- College of Forestry, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China
| | - Yujie Qin
- College of Forestry, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China
| | - Lili Jia
- College of Forestry, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China
| | - Jie Chu
- College of Forestry, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China
| | - Junhua Zhang
- College of Forestry, Northwest A&F University, No. 3 Taicheng Road, Yangling 712100, Shaanxi, China.
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Ben’ko EM, Lunin VV. Adsorption of Methylene Blue on Lignocellulosic Plant Materials. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418090066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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24
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Mamleeva NA, Kustov AL, Lunin VV. Formation of the Oxidation Products in the Ozonation of Wood with Different Moisture Contents. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2018. [DOI: 10.1134/s0036024418090182] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Huang C, Ma J, Liang C, Li X, Yong Q. Influence of sulfur dioxide-ethanol-water pretreatment on the physicochemical properties and enzymatic digestibility of bamboo residues. BIORESOURCE TECHNOLOGY 2018; 263:17-24. [PMID: 29723845 DOI: 10.1016/j.biortech.2018.04.104] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 04/26/2018] [Accepted: 04/27/2018] [Indexed: 06/08/2023]
Abstract
SO2-ethanol-water (SEW) is a promising pretreatment for improving enzymatic digestibility of biomass through simultaneously removing hemicellulose and lignin. In this work, SEW pretreatment was performed at different cooking times (10 min-60 min) and different SO2 concentrations (0.5%-2%) to produce pretreated bamboo residues for enzymatic hydrolysis. Meanwhile, physicochemical features of the residual cellulose and lignin were analyzed to better understand how SEW improves enzymatic digestibility. Under optimized SEW pretreatment condition (1% SO2 concentration, 150 °C, 60 min), 81.7% of xylan and 80.3% of lignin were solubilized, along with 89.1% of cellulose preserved in pretreated solid. A good enzymatic digestibility (80.4%) was achieved at optimum SEW condition. Several compelling correlations (R2 > 0.7) were observable between enzymatic digestibility and physicochemical features, demonstrating the importance of SEW pretreatment abilities of hemicellulose and lignin removal, reducing cellulose's degree of polymerization, and improving the amount of sulfonyl groups imparted to the original lignin structure.
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Affiliation(s)
- Caoxing Huang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products, Nanjing Forestry University, Nanjing 210037, China; Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China; College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Junmei Ma
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products, Nanjing Forestry University, Nanjing 210037, China; College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Chen Liang
- Guangxi Key Laboratory of Clean Pulp & Papermaking and Pollution Control, Nanning 530004, China
| | - Xi Li
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products, Nanjing Forestry University, Nanjing 210037, China; College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qiang Yong
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products, Nanjing Forestry University, Nanjing 210037, China; College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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Yu N, Tan L, Sun ZY, Nishimura H, Takei S, Tang YQ, Kida K. Bioethanol from sugarcane bagasse: Focused on optimum of lignin content and reduction of enzyme addition. WASTE MANAGEMENT (NEW YORK, N.Y.) 2018; 76:404-413. [PMID: 29625877 DOI: 10.1016/j.wasman.2018.03.047] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/16/2018] [Accepted: 03/28/2018] [Indexed: 05/16/2023]
Abstract
To investigate the effect of delignification on enzymatic saccharification and ethanol fermentation of sugarcane bagasse (SCB), NaClO, NaOH, and Na2CO3 were used to prepare SCB with different lignin contents. We found that a lignin content of approximately 11% was sufficient for enzymatic saccharification and fermentation. Based on this result, an economical delignification pretreatment method using a combination of acid and alkali (CAA) was applied. Lignin content of 11.7% was obtained after CAA pretreatment with 0.5% w/v H2SO4 at 140 °C for 10 min and 1.0% w/v NaOH at 90 °C for 60 min. Presaccharification-simultaneous saccharification and fermentation (P-SSF) of the CAA-pretreated SCB resulted in an ethanol concentration of 43.8 g/L and an ethanol yield of 81.7%, with an enzyme loading of 15 FPU/g-CAA-pretreated SCB. Enzyme activities (filter paper, carboxymethyl cellulase, and β-glucosidase activities) were determined in liquid phase during P-SSF, indicating that the residual cellulase activity could be further used. Thus, fed-batch P-SSF was carried out, and an ethanol concentration of 43.1 g/L and an ethanol yield of 80.4% were obtained with an enzyme loading of 10 FPU/g-CAA-pretreated SCB. Fed-batch P-SSF was found to be effective to reduce enzyme loading.
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Affiliation(s)
- Na Yu
- College of Architecture and Environment, Sichuan University, No. 24 South Section 1, First Ring Road, Chengdu 610065, China; Civil Engineering Department, Sichuan Engineering Technical College, Deyang 618000, China
| | - Li Tan
- Key Laboratory of Environmental and Applied Microbiology, Chengdu Institute of Biology, Chinese Academy of Sciences, Chengdu 610041, China; Environmental Microbiology Key Laboratory of Sichuan Province, Chengdu 610041, China.
| | - Zhao-Yong Sun
- College of Architecture and Environment, Sichuan University, No. 24 South Section 1, First Ring Road, Chengdu 610065, China.
| | - Hiroto Nishimura
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Shouta Takei
- Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan
| | - Yue-Qin Tang
- College of Architecture and Environment, Sichuan University, No. 24 South Section 1, First Ring Road, Chengdu 610065, China
| | - Kenji Kida
- College of Architecture and Environment, Sichuan University, No. 24 South Section 1, First Ring Road, Chengdu 610065, China
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Mu B, Wang H, Hao X, Wang Q. Morphology, Mechanical Properties and Dimensional Stability of Biomass Particles/High Density Polyethylene Composites: Effect of Species and Composition. Polymers (Basel) 2018; 10:E308. [PMID: 30966343 PMCID: PMC6415333 DOI: 10.3390/polym10030308] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2018] [Revised: 03/10/2018] [Accepted: 03/11/2018] [Indexed: 11/22/2022] Open
Abstract
The utilization of four types of biomass particles, including hardwood (poplar), softwood (radiata pine), crop (wheat straw) and bamboo (moso bamboo), as reinforcing fillers in preparing high density polyethylene (HDPE) based composites was studied. To improve interfacial compatibility, maleic anhydride grafted polyethylene (MAPE) was applied as the coupling agent. The effects of the biomass species on the mechanical and water absorption properties of the resulting composites were evaluated based on chemical composition analysis. A creep-recovery test was conducted in single cantilever mode using a dynamic mechanical analyzer. Results show that the four types of biomass particles had similar chemical compositions but different composition contents. Poplar particles with high cellulose content loading in the HDPE matrix exhibited higher tensile and flexure properties and creep resistance. Fracture morphology analysis indicated a weak particle-matrix interface in wheat straw based composites. Given the high crystallinity and minimum hemicellulose content, the moso bamboo reinforced composite showed high impact strength and better water resistance.
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Affiliation(s)
- Binshan Mu
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
| | - Haigang Wang
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
| | - Xiaolong Hao
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), College of Material Science and Engineering, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China.
| | - Qingwen Wang
- College of Materials and Energy, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China.
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Uzuner S, Sharma-Shivappa RR, Cekmecelioglu D, Kolar P. A novel oxidative destruction of lignin and enzymatic digestibility of hazelnut shells. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2018. [DOI: 10.1016/j.bcab.2017.12.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Bombeck PL, Khatri V, Meddeb-Mouelhi F, Montplaisir D, Richel A, Beauregard M. Predicting the most appropriate wood biomass for selected industrial applications: comparison of wood, pulping, and enzymatic treatments using fluorescent-tagged carbohydrate-binding modules. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:293. [PMID: 29225698 PMCID: PMC5718010 DOI: 10.1186/s13068-017-0980-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Accepted: 11/26/2017] [Indexed: 05/11/2023]
Abstract
BACKGROUND Lignocellulosic biomass will progressively become the main source of carbon for a number of products as the Earth's oil reservoirs disappear. Technology for conversion of wood fiber into bioproducts (wood biorefining) continues to flourish, and access to reliable methods for monitoring modification of such fibers is becoming an important issue. Recently, we developed a simple, rapid approach for detecting four different types of polymer on the surface of wood fibers. Named fluorescent-tagged carbohydrate-binding module (FTCM), this method is based on the fluorescence signal from carbohydrate-binding modules-based probes designed to recognize specific polymers such as crystalline cellulose, amorphous cellulose, xylan, and mannan. RESULTS Here we used FTCM to characterize pulps made from softwood and hardwood that were prepared using Kraft or chemical-thermo-mechanical pulping. Comparison of chemical analysis (NREL protocol) and FTCM revealed that FTCM results were consistent with chemical analysis of the hemicellulose composition of both hardwood and softwood samples. Kraft pulping increased the difference between softwood and hardwood surface mannans, and increased xylan exposure. This suggests that Kraft pulping leads to exposure of xylan after removal of both lignin and mannan. Impact of enzyme cocktails from Trichoderma reesei (Celluclast 1.5L) and from Aspergillus sp. (Carezyme 1000L) was investigated by analysis of hydrolyzed sugars and by FTCM. Both enzymes preparations released cellobiose and glucose from pulps, with the cocktail from Trichoderma being the most efficient. Enzymatic treatments were not as effective at converting chemical-thermomechanical pulps to simple sugars, regardless of wood type. FTCM revealed that amorphous cellulose was the primary target of either enzyme preparation, which resulted in a higher proportion of crystalline cellulose on the surface after enzymatic treatment. FTCM confirmed that enzymes from Aspergillus had little impact on exposed hemicelluloses, but that enzymes from the more aggressive Trichoderma cocktail reduced hemicelluloses at the surface. CONCLUSIONS Overall, this study indicates that treatment with enzymes from Trichoderma is appropriate for generating crystalline cellulose at fiber surface. Applications such as nanocellulose or composites requiring chemical resistance would benefit from this enzymatic treatment. The milder enzyme mixture from Aspergillus allowed for removal of amorphous cellulose while preserving hemicelluloses at fiber surface, which makes this treatment appropriate for new paper products where surface chemical responsiveness is required.
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Affiliation(s)
- Pierre-Louis Bombeck
- AgroBioChem Department, Laboratory of Biomass and Green Technologies, University of Liège, Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Vinay Khatri
- Université du Québec à Trois-Rivières, Centre de Recherche sur les Matériaux Lignocellulosiques, C.P. 500, Trois-Rivières, QC G9A 5H7 Canada
- PROTEO, Université Laval, Québec, QC G1V 0A6 Canada
| | - Fatma Meddeb-Mouelhi
- Université du Québec à Trois-Rivières, Centre de Recherche sur les Matériaux Lignocellulosiques, C.P. 500, Trois-Rivières, QC G9A 5H7 Canada
- PROTEO, Université Laval, Québec, QC G1V 0A6 Canada
| | - Daniel Montplaisir
- Département de Chimie, Biochimie et Physique, Université du Québec à Trois-Rivières, C.P. 500, Trois-Rivières, QC G9A 5H7 Canada
| | - Aurore Richel
- AgroBioChem Department, Laboratory of Biomass and Green Technologies, University of Liège, Gembloux Agro-Bio Tech, 5030 Gembloux, Belgium
| | - Marc Beauregard
- Université du Québec à Trois-Rivières, Centre de Recherche sur les Matériaux Lignocellulosiques, C.P. 500, Trois-Rivières, QC G9A 5H7 Canada
- PROTEO, Université Laval, Québec, QC G1V 0A6 Canada
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30
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Williams DL, Crowe JD, Ong RG, Hodge DB. Water sorption in pretreated grasses as a predictor of enzymatic hydrolysis yields. BIORESOURCE TECHNOLOGY 2017; 245:242-249. [PMID: 28892697 DOI: 10.1016/j.biortech.2017.08.200] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 08/29/2017] [Accepted: 08/30/2017] [Indexed: 05/05/2023]
Abstract
This work investigated the impact of two alkaline pretreatments, ammonia fiber expansion (AFEX) and alkaline hydrogen peroxide (AHP) delignification performed over a range of conditions on the properties of corn stover and switchgrass. Changes in feedstock properties resulting from pretreatment were subsequently compared to enzymatic hydrolysis yields to examine the relationship between enzymatic hydrolysis and cell wall properties. The pretreatments function to increase enzymatic hydrolysis yields through different mechanisms; AFEX pretreatment through lignin relocalization and some xylan solubilization and AHP primarily through lignin solubilization. An important outcome of this work demonstrated that while changes in lignin content in AHP-delignified biomass could be clearly correlated to improved response to hydrolysis, compositional changes alone in AFEX-pretreated biomass could not explain differences in hydrolysis yields. We determined the water retention value, which characterizes the association of water with the cell wall of the pretreated biomass, can be used to predict hydrolysis yields for all pretreated biomass within this study.
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Affiliation(s)
- Daniel L Williams
- Department of Chemical Engineering & Materials Science, Michigan State University, East Lansing, MI, USA; DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, USA
| | - Jacob D Crowe
- Department of Chemical Engineering & Materials Science, Michigan State University, East Lansing, MI, USA
| | - Rebecca G Ong
- Department of Chemical Engineering, Michigan Technological University, Houghton, MI, USA
| | - David B Hodge
- Department of Chemical Engineering & Materials Science, Michigan State University, East Lansing, MI, USA; DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, MI, USA; Department Biosystems & Agricultural Engineering, Michigan State University, East Lansing, MI, USA; Division of Chemical Engineering. Luleå University of Technology, SE-971 87 Luleå, Sweden.
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31
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Acharjee TC, Jiang Z, Haynes RD, Lee YY. Evaluation of chlorine dioxide as a supplementary pretreatment reagent for lignocellulosic biomass. BIORESOURCE TECHNOLOGY 2017; 244:1049-1054. [PMID: 28851159 DOI: 10.1016/j.biortech.2017.08.038] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2017] [Revised: 08/07/2017] [Accepted: 08/08/2017] [Indexed: 05/24/2023]
Abstract
Chlorine dioxide (ClO2) is a bleaching reagent used in paper industry. Two different types of pretreatment methods were investigated incorporating ClO2 as a secondary reagent: (a) alkaline followed by ClO2 treatment; (b) dilute-sulfuric acid followed ClO2 treatment. In these methods, ClO2 treatment has shown little effect on delignification. Scheme-a has shown a significant improvement in enzymatic digestibility of glucan far above that treated by ammonia alone. On the contrary, dilute-acid followed by ClO2 treatment has shown negative effect on the enzymatic hydrolysis. The main factors affecting the enzymatic hydrolysis are the changes of the chemical structure of lignin and its distribution on the biomass surface. ClO2 treatment significantly increases the carboxylic acid content and reduces phenolic groups of lignin, affecting hydrophobicity of lignin and the H-bond induced association between the enzyme and lignin. This collectively led to reduction of unproductive binding of enzyme with lignin, consequently increasing the digestibility.
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Affiliation(s)
- Tapas C Acharjee
- Department of Chemical Engineering, Auburn University, 212 Ross Hall, Auburn, AL 36849, USA; Alabama Center for Paper & Bioresource Engineering, Auburn University, 356 Ross Hall, Auburn, AL 36849, USA
| | - Zhihua Jiang
- Department of Chemical Engineering, Auburn University, 212 Ross Hall, Auburn, AL 36849, USA; Alabama Center for Paper & Bioresource Engineering, Auburn University, 356 Ross Hall, Auburn, AL 36849, USA
| | | | - Yoon Y Lee
- Department of Chemical Engineering, Auburn University, 212 Ross Hall, Auburn, AL 36849, USA.
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32
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Comparison of One-Stage Batch and Fed-Batch Enzymatic Hydrolysis of Pretreated Hardwood for the Production of Biosugar. Appl Biochem Biotechnol 2017; 184:1441-1452. [PMID: 29064030 DOI: 10.1007/s12010-017-2633-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Accepted: 10/13/2017] [Indexed: 10/18/2022]
Abstract
Fed-batch method has shown a great promise in debottlenecking the high-solid enzymatic hydrolysis for the commercialization of cellulosic biosugar conversion for biofuel/biochemical production. To further improve enzymatic hydrolysis efficiency at high solid loading, fed-batch methods of green liquor-pretreated hardwood were performed to evaluate their effects on sugar recovery by comparing with one-stage batch method in this study. Among all the explored conditions, the fed-batch at 15% consistency gave higher sugar recovery on green liquor-pretreated hardwood compared to that of one-stage batch. By using general linear model analysis, the percentage of enzymatic sugar recovery in fed-batch consistency method (increasing consistency from the initial 10.7 to 15% at intervals of 24 and 48 h) was higher than that of batch hydrolysis at higher density of 15% consistency. Under that best fed-batch condition, the total sugar recovery of pretreated hardwood in enzymatic hydrolysate reached approximately 48.41% at Cellic® enzyme loading of 5 filter-paper unit (FPU)/g and 58.83% at Cellic® enzyme loading of 10 FPU/g with a hydrolysis time of 96 h.
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33
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Mamleeva NA, Autlov SA, Bazarnova NG, Lunin VV. Degradation of polysaccharides and lignin in wood ozonation. RUSSIAN JOURNAL OF BIOORGANIC CHEMISTRY 2017. [DOI: 10.1134/s1068162016070098] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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34
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Chen BY, Zhao BC, Li MF, Liu QY, Sun RC. Fractionation of rapeseed straw by hydrothermal/dilute acid pretreatment combined with alkali post-treatment for improving its enzymatic hydrolysis. BIORESOURCE TECHNOLOGY 2017; 225:127-133. [PMID: 27888729 DOI: 10.1016/j.biortech.2016.11.062] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/05/2016] [Revised: 11/14/2016] [Accepted: 11/15/2016] [Indexed: 05/08/2023]
Abstract
The aim of the research was to evaluate the effect of combined treatments on fermentable sugar production from rapeseed straw. An optimum condition was found to be the combination of hydrothermal pretreatment at 180°C for 45min and post-treatment by 2% NaOH at 100°C for 2h, which was based on the quantity of monosaccharides released during enzymatic hydrolysis. As compared with the raw material without treatment, the combination of hydrothermal pretreatment and alkali post-treatment resulted in a significant increase of the saccharification rate by 5.9times. This process potentially turned rapeseed straw into value added products in accordance with the biorefinery concept.
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Affiliation(s)
- Bo-Yang Chen
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, China
| | - Bao-Cheng Zhao
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, China
| | - Ming-Fei Li
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, China
| | - Qiu-Yun Liu
- The BioComposites Centre, Bangor University, Bangor, UK
| | - Run-Cang Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing, China.
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35
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Healey AL, Lee DJ, Lupoi JS, Papa G, Guenther JM, Corno L, Adani F, Singh S, Simmons BA, Henry RJ. Evaluation of Relationships between Growth Rate, Tree Size, Lignocellulose Composition, and Enzymatic Saccharification in Interspecific Corymbia Hybrids and Parental Taxa. FRONTIERS IN PLANT SCIENCE 2016; 7:1705. [PMID: 27917179 PMCID: PMC5114311 DOI: 10.3389/fpls.2016.01705] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2016] [Accepted: 10/31/2016] [Indexed: 05/23/2023]
Abstract
In order for a lignocellulosic bioenergy feedstock to be considered sustainable, it must possess a high rate of growth to supply biomass for conversion. Despite the desirability of a fast growth rate for industrial application, it is unclear what effect growth rate has on biomass composition or saccharification. We characterized Klason lignin, glucan, and xylan content with response to growth in Corymbia interspecific F1 hybrid families (HF) and parental species Corymbia torelliana and C. citriodora subspecies variegata and measured the effects on enzymatic hydrolysis from hydrothermally pretreated biomass. Analysis of biomass composition within Corymbia populations found similar amounts of Klason lignin content (19.7-21.3%) among parental and hybrid populations, whereas glucan content was clearly distinguished within C. citriodora subspecies variegata (52%) and HF148 (60%) as compared to other populations (28-38%). Multiple linear regression indicates that biomass composition is significantly impacted by tree size measured at the same age, with Klason lignin content increasing with diameter breast height (DBH) (+0.12% per cm DBH increase), and glucan and xylan typically decreasing per DBH cm increase (-0.7 and -0.3%, respectively). Polysaccharide content within C. citriodora subspecies variegata and HF-148 were not significantly affected by tree size. High-throughput enzymatic saccharification of hydrothermally pretreated biomass found significant differences among Corymbia populations for total glucose production from biomass, with parental Corymbia torelliana and hybrids HF-148 and HF-51 generating the highest amounts of glucose (~180 mg/g biomass, respectively), with HF-51 undergoing the most efficient glucan-to-glucose conversion (74%). Based on growth rate, biomass composition, and further optimization of enzymatic saccharification yield, high production Corymbia hybrid trees are potentially suitable for fast-rotation bioenergy or biomaterial production.
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Affiliation(s)
- Adam L. Healey
- Queensland Alliance for Agriculture and Food Innovation, University of QueenslandSt. Lucia, QLD, Australia
| | - David J. Lee
- Forest Industries Research Centre, University of the Sunshine CoastMaroochydore, QLD, Australia
- Forestry & Biosciences, Agri-Science Queensland, Department of Agriculture and FisheriesGympie, QLD, Australia
| | | | - Gabriella Papa
- Joint BioEnergy Institute, Lawrence Berkeley National LaboratoryEmeryville, CA, USA
| | - Joel M. Guenther
- Joint BioEnergy Institute, Lawrence Berkeley National LaboratoryEmeryville, CA, USA
- Biological and Engineering Sciences Center, Sandia National LaboratoriesLivermore, CA, USA
| | - Luca Corno
- Gruppo Ricicla – Biomass and Bioenergy Laboratory, DiSAA, University of MilanMilan, Italy
| | - Fabrizio Adani
- Gruppo Ricicla – Biomass and Bioenergy Laboratory, DiSAA, University of MilanMilan, Italy
| | - Seema Singh
- Joint BioEnergy Institute, Lawrence Berkeley National LaboratoryEmeryville, CA, USA
- Biological and Engineering Sciences Center, Sandia National LaboratoriesLivermore, CA, USA
| | - Blake A. Simmons
- Joint BioEnergy Institute, Lawrence Berkeley National LaboratoryEmeryville, CA, USA
- Biological and Engineering Sciences Center, Sandia National LaboratoriesLivermore, CA, USA
| | - Robert J. Henry
- Queensland Alliance for Agriculture and Food Innovation, University of QueenslandSt. Lucia, QLD, Australia
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36
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Huang C, Jeuck B, Du J, Yong Q, Chang HM, Jameel H, Phillips R. Novel process for the coproduction of xylo-oligosaccharides, fermentable sugars, and lignosulfonates from hardwood. BIORESOURCE TECHNOLOGY 2016; 219:600-607. [PMID: 27543951 DOI: 10.1016/j.biortech.2016.08.051] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Revised: 08/05/2016] [Accepted: 08/06/2016] [Indexed: 06/06/2023]
Abstract
Many biorefineries have not been commercialized due to poor economic returns from final products. In this work, a novel process has been developed to coproduce valuable sugars, xylo-oligosaccharides, and lignosulfonates from hardwood. The modified process includes a mild autohydrolysis pretreatment, which enables for the recovery of the xylo-oligosaccharides in auto-hydrolysate. Following enzymatic hydrolysis, the residue is sulfomethylated to produce lignosulfonates. Recycling the sulfomethylation residues increased both the glucan recovery and lignosulfonate production. The glucose recovery was increased from 81.7% to 87.9%. Steady state simulation using 100g of hardwood produced 46.7g sugars, 5.9g xylo-oligosaccharides, and 25.7g lignosulfonates, which were significantly higher than that produced from the no-recycling process with 39.1g sugars, 5.9g xylo-oligosaccharides, and 15.0g lignosulfonates. The results indicate that this novel biorefinery process can improve the production of fermentable sugars and lignosulfonate from hardwood as compared to a conventional biorefinery process.
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Affiliation(s)
- Caoxing Huang
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products, Nanjing Forestry University, Nanjing 210037, China; Department of Forestry Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA
| | - Ben Jeuck
- Department of Forestry Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA
| | - Jing Du
- Department of Forestry Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA
| | - Qiang Yong
- Co-Innovation Center for Efficient Processing and Utilization of Forest Products, Nanjing Forestry University, Nanjing 210037, China
| | - Hou-Min Chang
- Department of Forestry Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA
| | - Hasan Jameel
- Department of Forestry Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA.
| | - Richard Phillips
- Department of Forestry Biomaterials, North Carolina State University, Campus Box 8005, Raleigh, NC 27695-8005, USA
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37
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Huang C, He J, Min D, Lai C, Yong Q. Understanding the Nonproductive Enzyme Adsorption and Physicochemical Properties of Residual Lignins in Moso Bamboo Pretreated with Sulfuric Acid and Kraft Pulping. Appl Biochem Biotechnol 2016; 180:1508-1523. [DOI: 10.1007/s12010-016-2183-8] [Citation(s) in RCA: 44] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2016] [Accepted: 06/27/2016] [Indexed: 10/21/2022]
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38
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Cai D, Li P, Luo Z, Qin P, Chen C, Wang Y, Wang Z, Tan T. Effect of dilute alkaline pretreatment on the conversion of different parts of corn stalk to fermentable sugars and its application in acetone-butanol-ethanol fermentation. BIORESOURCE TECHNOLOGY 2016; 211:117-24. [PMID: 27010341 DOI: 10.1016/j.biortech.2016.03.076] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/06/2016] [Revised: 03/11/2016] [Accepted: 03/12/2016] [Indexed: 05/25/2023]
Abstract
To investigate the effect of dilute alkaline pretreatment on different parts of biomass, corn stalk was separated into flower, leaf, cob, husk and stem, which were treated by NaOH in range of temperature and chemical loading. The NaOH-pretreated solid was then enzymatic hydrolysis and used as the substrate for batch acetone-butanol-ethanol (ABE) fermentation. The results demonstrated the five parts of corn stalk could be used as potential feedstock separately, with vivid performances in solvents production. Under the optimized conditions towards high product titer, 7.5g/L, 7.6g/L, 9.4g/L, 7g/L and 7.6g/L of butanol was obtained in the fermentation broth of flower, leaf, cob, husk and stem hydrolysate, respectively. Under the optimized conditions towards high product yield, 143.7g/kg, 126.3g/kg, 169.1g/kg, 107.7g/kg and 116.4g/kg of ABE solvent were generated, respectively.
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Affiliation(s)
- Di Cai
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Ping Li
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zhangfeng Luo
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Peiyong Qin
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China.
| | - Changjing Chen
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Yong Wang
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Zheng Wang
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
| | - Tianwei Tan
- National Energy R&D Center for Biorefinery, Beijing University of Chemical Technology, Beijing 100029, PR China
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39
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Rosales-Calderon O, Trajano HL, Posarac D, Duff SJ. Modeling of Oxygen Delignified Wheat Straw Enzymatic Hydrolysis as a Function of Hydrolysis Time, Enzyme Concentration, and Lignin Content. Ind Biotechnol (New Rochelle N Y) 2016. [DOI: 10.1089/ind.2015.0037] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- Oscar Rosales-Calderon
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, Canada
| | - Heather L. Trajano
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, Canada
| | - Dusko Posarac
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, Canada
| | - Sheldon J.B. Duff
- Department of Chemical and Biological Engineering, University of British Columbia, Vancouver, BC, Canada
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40
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Travaini R, Martín-Juárez J, Lorenzo-Hernando A, Bolado-Rodríguez S. Ozonolysis: An advantageous pretreatment for lignocellulosic biomass revisited. BIORESOURCE TECHNOLOGY 2016; 199:2-12. [PMID: 26409859 DOI: 10.1016/j.biortech.2015.08.143] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2015] [Revised: 08/24/2015] [Accepted: 08/25/2015] [Indexed: 06/05/2023]
Abstract
Ozonolysis, as a lignocellulosic biomass pretreatment, goes back to 80s; however, in the last years it is becoming widespread again owing to its efficiency and mild operation conditions. Ozone reacts preferably with lignin than carbohydrates, promoting biomass destructuration and delignification, and so the sugar release by enzymatic hydrolysis. The hydrolysate from pretreated biomass has being used as sugars source for second-generation fuels production, mainly ethanol, methane and hydrogen. Short-chain carboxylic acids are the main inhibitory compounds generated, being properly removed by water washing. The most common inhibitory compounds reported for other pretreatments, furfural and HMF (5-hydroxymethylfurfural), are not found in ozone-pretreated hydrolysates. Composition of pretreated biomass and ozone consumption depends on several process parameters: reactor design, moisture content, particle size, pH, reaction time, ozone/air flow and ozone concentration. Additional studies are necessary to clarify process parameters effect and to optimize the process to achieve high yields with economic feasibility.
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Affiliation(s)
- Rodolfo Travaini
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Calle Doctor Mergelina s/n, 47011 Valladolid, Spain
| | - Judit Martín-Juárez
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Calle Doctor Mergelina s/n, 47011 Valladolid, Spain
| | - Ana Lorenzo-Hernando
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Calle Doctor Mergelina s/n, 47011 Valladolid, Spain
| | - Silvia Bolado-Rodríguez
- Department of Chemical Engineering and Environmental Technology, University of Valladolid, Calle Doctor Mergelina s/n, 47011 Valladolid, Spain.
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41
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Bhalla A, Bansal N, Stoklosa RJ, Fountain M, Ralph J, Hodge DB, Hegg EL. Effective alkaline metal-catalyzed oxidative delignification of hybrid poplar. BIOTECHNOLOGY FOR BIOFUELS 2016; 9:34. [PMID: 26862348 PMCID: PMC4746924 DOI: 10.1186/s13068-016-0442-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2015] [Accepted: 01/20/2016] [Indexed: 05/11/2023]
Abstract
BACKGROUND Strategies to improve copper-catalyzed alkaline hydrogen peroxide (Cu-AHP) pretreatment of hybrid poplar were investigated. These improvements included a combination of increasing hydrolysis yields, while simultaneously decreasing process inputs through (i) more efficient utilization of H2O2 and (ii) the addition of an alkaline extraction step prior to the metal-catalyzed AHP pretreatment. We hypothesized that utilizing this improved process could substantially lower the chemical inputs needed during pretreatment. RESULTS Hybrid poplar was pretreated utilizing a modified process in which an alkaline extraction step was incorporated prior to the Cu-AHP treatment step and H2O2 was added batch-wise over the course of 10 h. Our results revealed that the alkaline pre-extraction step improved both lignin and xylan solubilization, which ultimately led to improved glucose (86 %) and xylose (95 %) yields following enzymatic hydrolysis. An increase in the lignin solubilization was also observed with fed-batch H2O2 addition relative to batch-only addition, which again resulted in increased glucose and xylose yields (77 and 93 % versus 63 and 74 %, respectively). Importantly, combining these strategies led to significantly improved sugar yields (96 % glucose and 94 % xylose) following enzymatic hydrolysis. In addition, we found that we could substantially lower the chemical inputs (enzyme, H2O2, and catalyst), while still maintaining high product yields utilizing the improved Cu-AHP process. This pretreatment also provided a relatively pure lignin stream consisting of ≥90 % Klason lignin and only 3 % xylan and 2 % ash following precipitation. Two-dimensional heteronuclear single-quantum coherence (2D HSQC) NMR and size-exclusion chromatography demonstrated that the solubilized lignin was high molecular weight (Mw ≈ 22,000 Da) and only slightly oxidized relative to lignin from untreated poplar. CONCLUSIONS This study demonstrated that the fed-batch, two-stage Cu-AHP pretreatment process was effective in pretreating hybrid poplar for its conversion into fermentable sugars. Results showed sugar yields near the theoretical maximum were achieved from enzymatically hydrolyzed hybrid poplar by incorporating an alkaline extraction step prior to pretreatment and by efficiently utilizing H2O2 during the Cu-AHP process. Significantly, this study reports high sugar yields from woody biomass treated with an AHP pretreatment under mild reaction conditions.
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Affiliation(s)
- Aditya Bhalla
- />DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, USA
- />Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, USA
| | - Namita Bansal
- />DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, USA
- />Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, USA
| | - Ryan J. Stoklosa
- />DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, USA
- />Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, USA
| | - Mackenzie Fountain
- />Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, USA
| | - John Ralph
- />DOE Great Lakes Bioenergy Research Center, University of Wisconsin-Madison, Madison, USA
| | - David B. Hodge
- />DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, USA
- />Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, USA
- />Division of Sustainable Process Engineering, Luleå University of Technology, Luleå, Sweden
| | - Eric L. Hegg
- />DOE Great Lakes Bioenergy Research Center, Michigan State University, East Lansing, USA
- />Department of Biochemistry and Molecular Biology, Michigan State University, East Lansing, USA
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42
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Overcome the recalcitrance of eucalyptus bark to enzymatic hydrolysis by concerted ionic liquid pretreatment. Process Biochem 2015. [DOI: 10.1016/j.procbio.2015.09.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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43
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Huang C, He J, Wang Y, Min D, Yong Q. Associating cooking additives with sodium hydroxide to pretreat bamboo residues for improving the enzymatic saccharification and monosaccharides production. BIORESOURCE TECHNOLOGY 2015; 193:142-149. [PMID: 26133470 DOI: 10.1016/j.biortech.2015.06.073] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2015] [Revised: 06/15/2015] [Accepted: 06/16/2015] [Indexed: 06/04/2023]
Abstract
Cooking additive pulping technique is used in kraft mill to increase delignification degree and pulp yield. In this work, cooking additives were firstly applied in the sodium hydroxide pretreatment for improving the bioconversion of bamboo residues to monosaccharides. Meanwhile, steam explosion and sulfuric acid pretreatments were also carried out on the sample to compare their impacts on monosaccharides production. Results indicated that associating anthraquinone with sodium hydroxide pretreatment showed the best performance in improving the original carbohydrates recovery, delignification, enzymatic saccharification, and monosaccharides production. After consecutive pretreatment and enzymatic saccharification process, 347.49 g, 307.48 g, 142.93 g, and 87.15 g of monosaccharides were released from 1000 g dry bamboo residues pretreated by sodium hydroxide associating with anthraquinone, sodium hydroxide, steam explosion and sulfuric acid, respectively. The results suggested that associating cooking additive with sodium hydroxide is an effective pretreatment for bamboo residues to enhance enzymatic saccharification for monosaccharides production.
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Affiliation(s)
- Caoxing Huang
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Juan He
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Yan Wang
- College of Light Industry Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Douyong Min
- College of Light Industry Science and Engineering, Nanjing Forestry University, Nanjing 210037, China
| | - Qiang Yong
- College of Chemical Engineering, Nanjing Forestry University, Nanjing 210037, China.
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44
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Wang W, Zhu Y, Du J, Yang Y, Jin Y. Influence of lignin addition on the enzymatic digestibility of pretreated lignocellulosic biomasses. BIORESOURCE TECHNOLOGY 2015; 181:7-12. [PMID: 25625461 DOI: 10.1016/j.biortech.2015.01.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2014] [Revised: 01/06/2015] [Accepted: 01/08/2015] [Indexed: 05/02/2023]
Abstract
The presence of lignin in lignocellulosic biomass is correlated with its enzymatic digestibility. Their correlation and mechanism have been investigated widely but have not been elucidated clearly. In this study, hydrophilic sulfonated lignin and hydrophobic kraft lignin were introduced into the enzymatic hydrolysis process to investigate their effects on the enzymatic digestibility of different pretreated lignocellulose. The influence of lignin addition on the enzymatic digestibility varied with both introduced lignin type and the pretreatment methods of substrates. Slight enhancement of enzymatic hydrolysis was observed for all substrates by adding kraft lignin. The addition of sulfonated lignin could effectively improve the enzymatic digestibility of green liquor and acidic bisulfite pretreated materials, but had little effect on sulfite-formaldehyde pretreated samples. The enzymatic digestibility of green liquor pretreated masson pine increased from 42% without lignin addition to 75% with 0.3g/g-substrate sulfonated lignin addition.
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Affiliation(s)
- Wangxia Wang
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yangsu Zhu
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Jing Du
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yiqin Yang
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China
| | - Yongcan Jin
- Jiangsu Provincial Key Lab of Pulp and Paper Science and Technology, Nanjing Forestry University, Nanjing 210037, China.
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Putro JN, Kurniawan A, Soetaredjo FE, Lin SY, Ju YH, Ismadji S. Production of gamma-valerolactone from sugarcane bagasse over TiO2-supported platinum and acid-activated bentonite as a co-catalyst. RSC Adv 2015. [DOI: 10.1039/c5ra06180f] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Sugarcane bagasse was transformed into GVL by a hydrothermal reaction and catalytic hydrogenation. The TiO2-supported Pt in combination with acid-activated bentonite as a co-catalyst has proved to be active and highly selective toward GVL formation.
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Affiliation(s)
- Jindrayani N. Putro
- Department of Chemical Engineering
- Widya Mandala Surabaya Catholic University
- Surabaya 60114
- Indonesia
| | - Alfin Kurniawan
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
| | - Felycia E. Soetaredjo
- Department of Chemical Engineering
- Widya Mandala Surabaya Catholic University
- Surabaya 60114
- Indonesia
| | - Shi-Yow Lin
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
| | - Yi-Hsu Ju
- Department of Chemical Engineering
- National Taiwan University of Science and Technology
- Taipei 106
- Republic of China
| | - Suryadi Ismadji
- Department of Chemical Engineering
- Widya Mandala Surabaya Catholic University
- Surabaya 60114
- Indonesia
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46
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Yamamoto M, Niskanen T, Iakovlev M, Ojamo H, van Heiningen A. The effect of bark on sulfur dioxide-ethanol-water fractionation and enzymatic hydrolysis of forest biomass. BIORESOURCE TECHNOLOGY 2014; 167:390-397. [PMID: 24998480 DOI: 10.1016/j.biortech.2014.06.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 06/06/2014] [Accepted: 06/07/2014] [Indexed: 06/03/2023]
Abstract
The focus of this study was to find out the effect of bark on SO2-ethanol-water (SEW) fractionation and enzymatic hydrolysis of forest biomass. Softwood bark was found to be more harmful than hardwood bark in both processes. For softwood, the amount of undigested wood in SEW fractionation increased with the increasing bark content, whereas the hardwood bark did not impair the fractionation of wood. The higher the softwood bark content was the lower were the yields in enzymatic hydrolysis likely due to the unproductive binding of enzymes on lignin and other compounds. Addition of surfactant Tween 20 (2% w/w on substrate) prior to enzyme more than doubled the sugar yield of bark-rich softwood pulp. Hardwood bark impaired enzymatic hydrolysis when its share was over 28%. According to a preliminary study, lignosulfonates from the carry-over liquor seem to improve the sugar yield in the enzymatic hydrolysis by acting as a surfactant.
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Affiliation(s)
- Minna Yamamoto
- Department of Forest Products Technology, Aalto University, FI- 00076 Aalto, Finland.
| | - Tuomas Niskanen
- Department of Forest Products Technology, Aalto University, FI- 00076 Aalto, Finland; Department of Biotechnology and Chemical Technology, Aalto University, FI- 00076 Aalto, Finland
| | - Mikhail Iakovlev
- Department of Forest Products Technology, Aalto University, FI- 00076 Aalto, Finland
| | - Heikki Ojamo
- Department of Biotechnology and Chemical Technology, Aalto University, FI- 00076 Aalto, Finland
| | - Adriaan van Heiningen
- Department of Forest Products Technology, Aalto University, FI- 00076 Aalto, Finland; Department of Chemical and Biological Engineering, University of Maine, 5737 Jenness Hall, Orono, ME 04469-5737, USA.
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47
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Lin K, Ma B, Sun Y, Liu W. Comparison between liquid and solid acids catalysts on reducing sugars conversion from furfural residues via pretreatments. BIORESOURCE TECHNOLOGY 2014; 167:133-136. [PMID: 24976491 DOI: 10.1016/j.biortech.2014.06.022] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/11/2014] [Revised: 06/05/2014] [Accepted: 06/07/2014] [Indexed: 06/03/2023]
Abstract
Liquid sulphuric acid is adopted and compared with carbon-based sulfonated solid acids (coal tar-based and active carbon-based) for furfural residues conversion into reducing sugars. The optimum hydrolysis conditions of liquid acid are at 4% of sulphuric acid, 25:1 of liquid and solid ratio, 175°C of reaction temperature and 120 min of reaction time. The reducing sugar yields are reached over 60% on liquid acid via NaOH/H2O2, NaOH/microwave and NaOH/ultrasonic pretreatments, whereas only over 30% on solid acids. The TOFs (turnover number frequency) via NaOH/H2O2 pretreatments are 0.093, 0.020 and 0.023 h(-1) for liquid sulphuric acid, coal tar-based and active carbon-based solid acids catalysts, respectively. Considering the efficiency, cost and environment factors, the liquid and solid acids have their own advantages of potential commercial application values.
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Affiliation(s)
- Keying Lin
- State Key Laboratory Cultivation Base of Natural Gas Conversion, College of Chemistry, Ningxia University, Yinchuan 750021, China
| | - Baojun Ma
- State Key Laboratory Cultivation Base of Natural Gas Conversion, College of Chemistry, Ningxia University, Yinchuan 750021, China.
| | - Yuan Sun
- State Key Laboratory Cultivation Base of Natural Gas Conversion, College of Chemistry, Ningxia University, Yinchuan 750021, China
| | - Wanyi Liu
- State Key Laboratory Cultivation Base of Natural Gas Conversion, College of Chemistry, Ningxia University, Yinchuan 750021, China
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48
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Yamamoto M, Iakovlev M, Bankar S, Tunc MS, van Heiningen A. Enzymatic hydrolysis of hardwood and softwood harvest residue fibers released by sulfur dioxide-ethanol-water fractionation. BIORESOURCE TECHNOLOGY 2014; 167:530-8. [PMID: 25022728 DOI: 10.1016/j.biortech.2014.06.054] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2014] [Revised: 06/13/2014] [Accepted: 06/14/2014] [Indexed: 05/16/2023]
Abstract
The enzymatic hydrolysis of hardwood and softwood harvest residues treated by SO2-ethanol-water (SEW) fractionation was studied. The target was to convert these fibers with high yield into glucose monomers which could be further converted into biofuel by a subsequent fermentation stage. Hardwood biomass residues were efficiently digested at low enzyme dosage (5 FPU/g cellulose) whereas the softwood residues required notably higher enzyme dosage (20 FPU) for sufficient conversion. However, cellulase dosage of softwood could be reduced mannanase supplementation. Especially the high lignin content of softwood biomass pulps impairs the digestibility and thereby, improved delignification could notably enhance the hydrolysis yields. It was shown that inferior delignification of SW biomass is due to persistent polyphenolic acids present in coniferous bark, whereas no evidence of the negative effect of inorganics and acetone extractives was observed. Additionally, SW hydrolyzate was successfully converted into a mixture of butanol, acetone and ethanol through ABE fermentation.
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Affiliation(s)
- Minna Yamamoto
- Department of Forest Products Technology, Aalto University, FI-00076 AALTO, Finland.
| | - Mikhail Iakovlev
- Department of Forest Products Technology, Aalto University, FI-00076 AALTO, Finland
| | - Sandip Bankar
- Department of Biotechnology and Chemical Technology, Aalto University, FI-00076 AALTO, Finland
| | - Mehmet Sefik Tunc
- Department of Chemical and Biological Engineering, University of Maine, 5737 Jenness Hall, Orono, ME 04469-5737, USA
| | - Adriaan van Heiningen
- Department of Forest Products Technology, Aalto University, FI-00076 AALTO, Finland; Department of Chemical and Biological Engineering, University of Maine, 5737 Jenness Hall, Orono, ME 04469-5737, USA.
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49
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Pappas IA, Koukoura Z, Tananaki C, Goulas C. Effect of dilute acid pretreatment severity on the bioconversion efficiency of Phalaris aquatica L. lignocellulosic biomass into fermentable sugars. BIORESOURCE TECHNOLOGY 2014; 166:395-402. [PMID: 24929811 DOI: 10.1016/j.biortech.2014.05.072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 05/11/2014] [Accepted: 05/21/2014] [Indexed: 06/03/2023]
Abstract
The effect of dilute acid pretreatment severity on the bioconversion efficiency of Phalaris aquatica lignocellulosic biomass into fermentable sugar monomers was studied. The pretreatment conditions were expressed in a combined severity factor (CSF), ranged from 0.13 to 1.16. The concentration of xylose and total monomeric sugars released from hemicellulose increased with pretreatment as the CSF increased. Dilute acid pretreatment resulted in about 1.7-fold increase in glucose release relative to the untreated biomass, while CSF was positively correlated with glucose recovery. A maximum glucose yield of 85.05% was observed at high severity values (i.e. CSF 1.16) after 72 h. The total amount of sugars released (i.e. xylose and glucose) was increased with pretreatment severity and a maximum conversion efficiency of 76.1% of structural carbohydrates was obtained at a CSF=1. Our data indicated that Phalaris aquatica L. is an alternative bioethanol feedstock and that hemicellulose removal promotes glucose yield.
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Affiliation(s)
- Ioannis A Pappas
- Chemical Process Engineering Research Institute, LPRE, 6th km Harilaou Thermi Road, 57001 Thessaloniki, Greece; Aristotle University, Department of Forestry and Natural Environment, Range Ecology Laboratory, 54124 Thessaloniki, Greece.
| | - Zoi Koukoura
- Aristotle University, Department of Forestry and Natural Environment, Range Ecology Laboratory, 54124 Thessaloniki, Greece
| | - Chrisoula Tananaki
- Aristotle University, School of Agriculture, Apiculture-Sericulture Laboratory, 54124 Thessaloniki, Greece
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50
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Prasertwasu S, Khumsupan D, Komolwanich T, Chaisuwan T, Luengnaruemitchai A, Wongkasemjit S. Efficient process for ethanol production from Thai Mission grass (Pennisetum polystachion). BIORESOURCE TECHNOLOGY 2014; 163:152-159. [PMID: 24811442 DOI: 10.1016/j.biortech.2014.04.043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2014] [Revised: 04/11/2014] [Accepted: 04/12/2014] [Indexed: 06/03/2023]
Abstract
Mission grass (Pennisetum polystachion) obtained from Tak Province, Thailand, possesses the potential to become a lignocellulosic biomass for bioethanol production. After the grass underwent milling and alkaline pretreatments, it was subjected to acid and enzymatic hydrolysis. The glucose hydrolyzate from the grass was detoxified to remove inhibitory compounds and degradation products such as furfural and 5-hydroxymethylfurfural. Overliming at pH 10 produced the highest ethanol yield. Among various strains of baker's yeasts, Saccharomyces cerevisiae TISTR 5596 with a yeast concentration of 10% v/v produced the maximum ethanol yield at 16 g/L within 24h, which is among one of the fastest ethanol producing microorganisms compared to other strains of S. cerevisiae as well as other ethanol-producing microorganisms.
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Affiliation(s)
- Sirirat Prasertwasu
- The Petroleum and Petrochemical College and Center of Excellence for Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Darin Khumsupan
- The Petroleum and Petrochemical College and Center of Excellence for Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Tidarat Komolwanich
- The Petroleum and Petrochemical College and Center of Excellence for Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Thanyalak Chaisuwan
- The Petroleum and Petrochemical College and Center of Excellence for Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Apanee Luengnaruemitchai
- The Petroleum and Petrochemical College and Center of Excellence for Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand
| | - Sujitra Wongkasemjit
- The Petroleum and Petrochemical College and Center of Excellence for Petrochemical and Materials Technology, Chulalongkorn University, Bangkok 10330, Thailand.
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