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Ezieke AH, Serrano A, Peces M, Clarke W, Villa-Gomez D. Effect of feeding frequency on the anaerobic digestion of berry fruit waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2024; 178:66-75. [PMID: 38377770 DOI: 10.1016/j.wasman.2024.02.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 01/29/2024] [Accepted: 02/05/2024] [Indexed: 02/22/2024]
Abstract
On-site anaerobic digesters for small agricultural farms typically have feeding schedules that fluctuate according to farm operations. Shocks in feeding, particularly for putrescible waste can disrupt the stable operation of a digester. The effect of intermittent feeding on the anaerobic digestion of rejected raspberries was investigated in four 3L reactors operated in semicontinuous mode for 350 days at 38 °C with a hydraulic retention time of 25 days and an organic loading rate (OLR) of 1gVS/L/d. During the acclimatisation period (147 days) the organic loading was 5 feeds per week. The feeding regime of two reactors was then changed while maintaining the same OLR and HRT to one weekly feed event in one reactor and 3 equal feeds per week in another. The feeding regime did not significantly affect specific methane yield (369 ± 47 L/kgVS on average) despite very different weekly patterns in methane production. Volatile fatty acids (VFA) comprised >83 % of the organics in the effluent, while the rest included non-inhibitory concentrations of phenolic compounds (515-556 mg gallic acid/L). The microbial composition and relative abundance of predominant groups in all reactors were the archaeal genera Methanobacterium and Methanolinea and the bacterial phyla Bacteridota and Firmicutes. Increasing the OLR to 2gVS/L/d on day 238 resulted in failure of all reactors, attributed to the insufficient alkalinity to counterbalance the VFA produced, and the pH decrease below 6. Overall results suggests that optimal digestion of raspberry waste is maintained despite variations in feeding frequency, but acidification can occur with OLR changes.
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Affiliation(s)
| | - Antonio Serrano
- The University of Queensland, School of Civil Engineering, Brisbane 4072, Australia; Institute of Water Research, University of Granada, Granada 18071, Spain; Department of Microbiology, Pharmacy Faculty, University of Granada, Campus de Cartuja s/n, Granada 18071, Spain
| | - Miriam Peces
- Department of Chemistry and Bioscience, Center for Microbial Communities, Aalborg University, Aalborg East 9220, Denmark
| | - William Clarke
- The University of Queensland, School of Civil Engineering, Brisbane 4072, Australia
| | - Denys Villa-Gomez
- The University of Queensland, School of Civil Engineering, Brisbane 4072, Australia.
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2
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Alagarsamy P, Daniel S, Chinnapparaj MI, Kim SC, Manivasagam VR, Vanaraj R. Boosting Fenton's Oxidation Reaction by a Food Waste-Derived Catalyst for Oxidizing Organic Dyes: Synergistic Effect of Complex Iron Oxides and the Layer Carbon Structure. ACS APPLIED BIO MATERIALS 2023; 6:3291-3308. [PMID: 37543951 DOI: 10.1021/acsabm.3c00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/08/2023]
Abstract
The constant increase in the human population drives the demand for food supply and thereby increasing the food wastage dramatically all over the world. Especially, around 60% of banana biomass has been generated as inedible domestic waste. Herein, we successfully employed banana waste as a catalyst for Fenton's oxidation reaction. The biomass-derived catalysts were subjected to various characterization techniques such as XRD, ATR-FTIR, confocal Raman spectroscopy, and XPS, XRF, BET, SEM, and TEM analyses. The XRD results revealed that, after carbonization of the dried banana bract material, a perloffite-like metal oxide phase was formed due to the aerial oxidation reaction. Characterization results of Raman and ATR-FTIR confirm that the carbonized catalyst possesses a layer-like structure with different types of functional groups. The calcium, magnesium, potassium, sodium, and iron are the dominating metal species in the resultant material, which was evident from the XRF and EDAX analyses. The carbonized banana bract catalyst is successfully utilized for the Fenton's oxidation reaction at neutral pH. The experimental results showed that the degradation efficiency of the fresh catalyst was 95% in 4 h of reaction time, and the stability of the catalyst was retained up to nine consecutive cycles. The high activity of MB, methylene blue, is mainly attributed to the strong interaction between oxy functional groups of the catalyst and MB molecule as compared to RhB. Further, the calculated efficiency of the hydrogen peroxide was found to be 99% and the self-decomposition of hydrogen peroxide by the formed metal oxides was highly limited.
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Affiliation(s)
| | - Santhanaraj Daniel
- Department of Chemistry, Loyola College, Chennai 600 034, Tamil Nadu, India
| | | | - Seong-Cheol Kim
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | | | - Ramkumar Vanaraj
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Cádiz-Gurrea MDLL, Villegas-Aguilar MDC, Leyva-Jiménez FJ, Pimentel-Moral S, Fernández-Ochoa Á, Alañón ME, Segura-Carretero A. Revalorization of bioactive compounds from tropical fruit by-products and industrial applications by means of sustainable approaches. Food Res Int 2020; 138:109786. [PMID: 33288172 DOI: 10.1016/j.foodres.2020.109786] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2020] [Revised: 10/03/2020] [Accepted: 10/05/2020] [Indexed: 02/08/2023]
Abstract
Tropical fruits trade is on the rise due to the claimed health benefits related with their consumption. Functional activities are exerted by the presence of bioactive compounds which could be used for prevention or amelioration diseases. However, the occurrence of bioactive compounds is found mainly in non-edible fraction of tropical fruits which are usually discarded. Therefore, the revalorization of tropical fruits by-products as source of functional compounds is on the cutting-edge research. The implementation of this challenge not only allows the enhancement of the tropical fruits by-products management, but also the production of value-added products. This review compiles the latest comprehensive information about the revalorization of bioactive compounds from tropical fruits by-products. A revision of the sustainable green technologies used for the isolation of valuable compounds has been carried out as well as the current food, functional, cosmeceutical and bioenergetics industrial applications of bioactive compounds extracted from tropical fruits by-products.
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Affiliation(s)
- María de la Luz Cádiz-Gurrea
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Spain; Research and Development of Functional Food Centre (CIDAF), Granada, Spain
| | - María Del Carmen Villegas-Aguilar
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Spain; Research and Development of Functional Food Centre (CIDAF), Granada, Spain
| | | | - Sandra Pimentel-Moral
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Spain; Research and Development of Functional Food Centre (CIDAF), Granada, Spain
| | - Álvaro Fernández-Ochoa
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Spain; Berlin Institute of Health Metabolomics Platform, 10178 Berlin, Germany; Max Delbrück Center for Molecular Medicine in the Helmholtz Association, 13125 Berlin, Germany
| | - María Elena Alañón
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Spain; Department of Analytical Chemistry and Food Science and Technology, University of Castilla-La Mancha, Ciudad Real, Spain.
| | - Antonio Segura-Carretero
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Spain; Research and Development of Functional Food Centre (CIDAF), Granada, Spain
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4
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Spence A, Blanco Madrigal E, Patil R, Bajón Fernández Y. Evaluation of anaerobic digestibility of energy crops and agricultural by-products. ACTA ACUST UNITED AC 2019. [DOI: 10.1016/j.biteb.2018.11.004] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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5
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Negi S, Tak H, Ganapathi TR. Xylem specific activation of 5' upstream regulatory region of two NAC transcription factors (MusaVND6 and MusaVND7) in banana is regulated by SNBE-like sites. PLoS One 2018; 13:e0192852. [PMID: 29438404 PMCID: PMC5811034 DOI: 10.1371/journal.pone.0192852] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 01/31/2018] [Indexed: 11/18/2022] Open
Abstract
Deposition of secondary cell wall in the xylem elements is controlled by a subgroup of NAC (NAM, ATAF, CUC) family, known as vascular-related NAC transcription factors (VNDs). In the present study, we analyzed the 5' upstream regulatory region of two banana NAC transcription factors (MusaVND6 and MusaVND7) for tissue specific expression and presence of 19-bp secondary-wall NAC binding element (SNBE)-like motifs. Transgenic banana plants of Musa cultivar Rasthali harboring either PMusaVND7::GUS or PMusaVND6::GUS showed specific GUS (β-D-Glucuronidase) activity in cells of the xylem tissue. Approximately 1.2kb promoter region of either MusaVND6 or MusaVND7 showed presence of at least two SNBE-like motifs. This 1.2kb promoter region was retarded in a gel shift assay by three banana VND protein (VND1,VND2 and VND3). The banana VND1-VND3 could also retard the mobility of isolated SNBE-like motifs of MusaVND6 or MusaVND7 in a gel shift assay. Transcript levels of MusaVND6 and MusaVND7 were elevated in transgenic banana overexpressing either banana VND1, VND2 or VND3. Present study suggested a probable regulation of banana VND6 and VND7 expression through direct interaction of banana VND1- VND3 with SNBE-like motifs. Our study also indicated two promoter elements for possible utilization in cell wall modifications in plants especially banana, which is being recently considered as a potential biofuel crop.
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Affiliation(s)
- Sanjana Negi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
- Homi Bhabha National Institute, AnushaktiNagar, Mumbai, India
| | - Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
- Homi Bhabha National Institute, AnushaktiNagar, Mumbai, India
| | - T. R. Ganapathi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
- Homi Bhabha National Institute, AnushaktiNagar, Mumbai, India
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6
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Negi S, Tak H, Ganapathi TR. Native vascular related NAC transcription factors are efficient regulator of multiple classes of secondary wall associated genes in banana. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2017; 265:70-86. [PMID: 29223344 DOI: 10.1016/j.plantsci.2017.09.018] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Revised: 09/18/2017] [Accepted: 09/21/2017] [Indexed: 06/07/2023]
Abstract
Secondary-wall deposition in xylem vessel elements is regulated by vascular-related NAC transcription factors (VNDs). We show that three banana VNDs (MusaVND1, MusaVND2 and MusaVND3) directly regulate multiple secondary-wall associated genes by binding to their 5'-upstream regulatory region. Transgenic banana harboring either PMusaVND1:GUS, PMusaVND2:GUS or PMusaVND3:GUS showed specific GUS staining in lignified tissues. MusaVND1, MusaVND2 and MusaVND3 encodes transcriptional-activators as its C-terminal region drive expression of reporter genes in vivo in yeast. Purified MusaVND1, MusaVND2 and MusaVND3 proteins in gel shift assay bind to 19-bp secondary-wall NAC binding element (SNBE) while it fails to bind mutated SNBE. Putative SNBE sites in the 5'-upstream regulatory region of important secondary-wall associated genes related to programmed cell death (XCP1), cell-wall modification (IRX1/CesA8, IRX3/CesA7,IRX5/CesA4, IRX8, IRX10 and IRX12) and transcriptional regulation (MYB52, MYB48/59, MYB85, MYB58/72, MYB46, and MYB83) in banana was identified and mobility of these regulatory regions got retarded by MusaVND1, MusaVND2 and MusaVND3. Transcript level of these important secondary wall associated genes were elevated in transgenic banana overexpressing either MusaVND1, MusaVND2 or MusaVND3. Present study suggested promoters with prospective utilization in wall modification in banana (a potential biofuel crop) and suggest a complex transcriptional regulation of secondary wall deposition in plants.
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Affiliation(s)
- Sanjana Negi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | - Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India; Homi Bhabha National Institute, Anushakti Nagar, Mumbai 400094, India
| | - T R Ganapathi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai 400085, India.
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Odedina MJ, Charnnok B, Saritpongteeraka K, Chaiprapat S. Effects of size and thermophilic pre-hydrolysis of banana peel during anaerobic digestion, and biomethanation potential of key tropical fruit wastes. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 68:128-138. [PMID: 28709740 DOI: 10.1016/j.wasman.2017.07.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2017] [Revised: 07/01/2017] [Accepted: 07/03/2017] [Indexed: 06/07/2023]
Abstract
Methane production potential of tropical fruit wastes, namely lady-finger banana peel, rambutan waste and longan waste were compared using BMP assay and stoichiometric modified Buswell and Mueller equation. Methane yields based on volatile solid (VS) were in the order of ground banana peel, chopped banana peel, chopped longan waste, and chopped rambutan waste (330.6, 268.3, 234.6 and 193.2 mLCH4/gVS) that corresponded to their calculated biodegradability. In continuous operations of banana peel digestion at feed concentrations based on total solid (TS) 1-2%, mesophilic single stage digester run at 20-day hydraulic retention time (20-day HRT) failed at 2%TS, but successfully recovered at 1.5%TS. Pre-hydrolysis thermophilic reactor (4-d HRT) was placed as pre-treatment to mesophilic reactor (20-d HRT). Higher biogas (with an evolution of H2) and energy yields were obtained and greater system stability was achieved over the single stage digestion, particularly at higher solid feedstock. The best performance of two stage digestion was 68.5% VS destruction and energy yield of 2510.9kJ/kgVS added at a feed concentration of 2%TS.
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Affiliation(s)
- Mary Jesuyemi Odedina
- Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, Hat Yai Campus, Songkhla 90110, Thailand
| | - Boonya Charnnok
- PSU Energy System Research Institute (PERIN), Prince of Songkla University, Songkhla, Hat Yai Campus, Songkhla 90110, Thailand
| | - Kanyarat Saritpongteeraka
- Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, Hat Yai Campus, Songkhla 90110, Thailand
| | - Sumate Chaiprapat
- Department of Civil Engineering, Faculty of Engineering, Prince of Songkla University, Songkhla, Hat Yai Campus, Songkhla 90110, Thailand; PSU Energy System Research Institute (PERIN), Prince of Songkla University, Songkhla, Hat Yai Campus, Songkhla 90110, Thailand.
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8
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Palacios S, Ruiz HA, Ramos-Gonzalez R, Martínez J, Segura E, Aguilar M, Aguilera A, Michelena G, Aguilar C, Ilyina A. Comparison of physicochemical pretreatments of banana peels for bioethanol production. Food Sci Biotechnol 2017; 26:993-1001. [PMID: 30263629 DOI: 10.1007/s10068-017-0128-9] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Revised: 04/21/2017] [Accepted: 05/01/2017] [Indexed: 11/24/2022] Open
Abstract
Pretreatments with different concentrations of sulfuric acid (0, 0.5, and 1% v/v) and temperatures (28 and 121 °C at 103 kPa in an autoclave) were performed on banana peels (BP) milled by mechanical grinding and grinding in a blender as well as without grinding. Cellulose, hemicellulose, lignin, ash, and total and reducing sugar contents were evaluated. The highest yields of cellulose enzymatic hydrolysis (99%) were achieved with liquefied autoclaved BP treated with 0.5 and 1% acid after 48 h of hydrolysis. Ethanol production by Kluyveromyces marxianus fermentation was assayed using hydrolyzed BP at 10, 15, and 20% (w/w). The highest ethanol level (21 g/L) was reached after 24 h of fermentation with 20% (w/w) BP. Kinetics of the consumption of reducing sugars under this fermentation condition demonstrates the presence of a lag period (about 8 h). Thus, BP are a good source for ethanol production.
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Affiliation(s)
- Sócrates Palacios
- 1Nanobioscience and Biorefinery Groups, Food Research Department, Chemistry School, Autonomous University of Coahuila, Blvd. V. Carranza e Ing. José Cárdenas Valdés, 25280 Saltillo, Coahuila Mexico.,Faculty of Engineering in Mechanics and Production Sciences, Polytechnic School of Litoral, Km. 30.5 Perimetral Road, Guayaquil, Ecuador
| | - Héctor A Ruiz
- 1Nanobioscience and Biorefinery Groups, Food Research Department, Chemistry School, Autonomous University of Coahuila, Blvd. V. Carranza e Ing. José Cárdenas Valdés, 25280 Saltillo, Coahuila Mexico
| | - Rodolfo Ramos-Gonzalez
- 3CONACYT- Autonomous University of Coahuila, Blvd. V. Carranza e Ing. José Cárdenas Valdés, 25280 Saltillo, Coahuila Mexico
| | - José Martínez
- 1Nanobioscience and Biorefinery Groups, Food Research Department, Chemistry School, Autonomous University of Coahuila, Blvd. V. Carranza e Ing. José Cárdenas Valdés, 25280 Saltillo, Coahuila Mexico
| | - Elda Segura
- 1Nanobioscience and Biorefinery Groups, Food Research Department, Chemistry School, Autonomous University of Coahuila, Blvd. V. Carranza e Ing. José Cárdenas Valdés, 25280 Saltillo, Coahuila Mexico
| | - Miguel Aguilar
- Research Center and Advanced Studies of IPN (CINVESTAV-IPN), 25903 Ramos Arizpe, Coahuila Mexico
| | - Antonio Aguilera
- Antonio Narro Agrarian Autonomous University, Calzada Antonio Narro, 25315 Buenavista, Coahuila Mexico
| | - Georgina Michelena
- ICIDCA - Cuban Research Institute of Derivatives Sugarcane, vía Blanca, S.M. del Padron, La Habana, Cuba
| | - Cristóbal Aguilar
- 1Nanobioscience and Biorefinery Groups, Food Research Department, Chemistry School, Autonomous University of Coahuila, Blvd. V. Carranza e Ing. José Cárdenas Valdés, 25280 Saltillo, Coahuila Mexico
| | - Anna Ilyina
- 1Nanobioscience and Biorefinery Groups, Food Research Department, Chemistry School, Autonomous University of Coahuila, Blvd. V. Carranza e Ing. José Cárdenas Valdés, 25280 Saltillo, Coahuila Mexico
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9
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Wang J, Qian W, He Y, Xiong Y, Song P, Wang RM. Reutilization of discarded biomass for preparing functional polymer materials. WASTE MANAGEMENT (NEW YORK, N.Y.) 2017; 65:11-21. [PMID: 28431803 DOI: 10.1016/j.wasman.2017.04.025] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 04/06/2017] [Accepted: 04/09/2017] [Indexed: 06/07/2023]
Abstract
Biomass is abundant and recyclable on the earth, which has been assigned numerous roles to human beings. However, over the past decades, accompanying with the rapid expansion of man-made materials, such as alloy, plastic, synthetic rubber and fiber, a great number of natural materials had been neglected and abandoned, such as straw, which cause a waste of resource and environmental pollution. In this review, based on introducing sources of discarded biomass, the main composition and polymer chains in discarded biomass materials, the traditional treatment and novel approach for reutilization of discarded biomass were summarized. The discarded biomass mainly come from plant wastes generated in the process of agriculture and forestry production and manufacturing processes, animal wastes generated in the process of animal husbandry and fishery production as well as the residual wastes produced in the process of food processing and rural living garbage. Compared with the traditional treatment including burning, landfill, feeding and fertilizer, the novel approach for reutilization of discarded biomass principally allotted to energy, ecology and polymer materials. The prepared functional materials covered in composite materials, biopolymer based adsorbent and flocculant, carrier materials, energy materials, smart polymer materials for medical and other intelligent polymer materials, which can effectively serve the environmental management and human life, such as wastewater treatment, catalyst, new energy, tissue engineering, drug controlled release, and coating. To sum up, the renewable and biodegradable discarded biomass resources play a vital role in the sustainable development of human society, as well as will be put more emphases in the future.
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Affiliation(s)
- Jianfeng Wang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Wenzhen Qian
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yufeng He
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
| | - Yubing Xiong
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Pengfei Song
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Rong-Min Wang
- Key Laboratory of Eco-Environment-Related Polymer Materials of Ministry of Education, Institute of Polymer, College of Chemistry & Chemical Engineering, Northwest Normal University, Lanzhou 730070, China.
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Gumisiriza R, Hawumba JF, Okure M, Hensel O. Biomass waste-to-energy valorisation technologies: a review case for banana processing in Uganda. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:11. [PMID: 28066511 PMCID: PMC5210281 DOI: 10.1186/s13068-016-0689-5] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/27/2016] [Accepted: 12/16/2016] [Indexed: 05/07/2023]
Abstract
BACKGROUND Uganda's banana industry is heavily impeded by the lack of cheap, reliable and sustainable energy mainly needed for processing of banana fruit into pulp and subsequent drying into chips before milling into banana flour that has several uses in the bakery industry, among others. Uganda has one of the lowest electricity access levels, estimated at only 2-3% in rural areas where most of the banana growing is located. In addition, most banana farmers have limited financial capacity to access modern solar energy technologies that can generate sufficient energy for industrial processing. Besides energy scarcity and unreliability, banana production, marketing and industrial processing generate large quantities of organic wastes that are disposed of majorly by unregulated dumping in places such as swamps, thereby forming huge putrefying biomass that emit green house gases (methane and carbon dioxide). On the other hand, the energy content of banana waste, if harnessed through appropriate waste-to-energy technologies, would not only solve the energy requirement for processing of banana pulp, but would also offer an additional benefit of avoiding fossil fuels through the use of renewable energy. MAIN BODY The potential waste-to-energy technologies that can be used in valorisation of banana waste can be grouped into three: Thermal (Direct combustion and Incineration), Thermo-chemical (Torrefaction, Plasma treatment, Gasification and Pyrolysis) and Biochemical (Composting, Ethanol fermentation and Anaerobic Digestion). However, due to high moisture content of banana waste, direct application of either thermal or thermo-chemical waste-to-energy technologies is challenging. Although, supercritical water gasification does not require drying of feedstock beforehand and can be a promising thermo-chemical technology for gasification of wet biomass such as banana waste, it is an expensive technology that may not be adopted by banana farmers in Uganda. Biochemical conversion technologies are reported to be more eco-friendly and appropriate for waste biomass with high moisture content such as banana waste. CONCLUSION Uganda's banana industrialisation is rural based with limited technical knowledge and economic capability to setup modern solar technologies and thermo-conversions for drying banana fruit pulp. This review explored the advantages of various waste-to-energy technologies as well as their shortfalls. Anaerobic digestion stands out as the most feasible and appropriate waste-to-energy technology for solving the energy scarcity and waste burden in banana industry. Finally, potential options for the enhancement of anaerobic digestion of banana waste were also elucidated.
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Affiliation(s)
- Robert Gumisiriza
- School of Biosciences, Makerere University, P.O Box 7062, Kampala, Uganda
| | | | - Mackay Okure
- School of Engineering, Makerere University, P.O Box 7062, Kampala, Uganda
| | - Oliver Hensel
- Universität Kassel-FG Agrartechnik, Nordbahnhofstr.1a, 37213 Witzenhausen, Germany
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11
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Negi S, Tak H, Ganapathi TR. Functional characterization of secondary wall deposition regulating transcription factors MusaVND2 and MusaVND3 in transgenic banana plants. PROTOPLASMA 2016; 253:431-446. [PMID: 25952082 DOI: 10.1007/s00709-015-0822-5] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2014] [Accepted: 04/20/2015] [Indexed: 06/04/2023]
Abstract
NAM, ATAF, and CUC (NAC) domain-containing proteins are plant-specific transcription factors involved in stress responses and developmental regulation. MusaVND2 and MusaVND3 are vascular-related NAC domain-containing genes encoding for nuclear-localized proteins. The transcript level of MusaVND2 and MusaVND3 are gradually induced after induction of lignification conditions in banana embryogenic cells. Banana embryogenic cells differentiated to tracheary element-like cells after overexpression of MusaVND2 and MusaVND3 with a differentiation frequency of 63.5 and 23.4 %, respectively, after ninth day. Transgenic banana plants overexpressing either of MusaVND2 or MusaVND3 showed ectopic secondary wall deposition as well as transdifferentiation of cells into tracheary elements. Transdifferentiation to tracheary element-like cells was observed in cortical cells of corm and in epidermal and mesophyll cells of leaves of transgenic plants. Elevated levels of lignin and crystalline cellulose were detected in the transgenic banana lines than control plants. The results obtained are useful for understanding the molecular regulation of secondary wall development in banana.
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Affiliation(s)
- Sanjana Negi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
| | - Himanshu Tak
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
| | - T R Ganapathi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India.
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Abstract
We live in an 'obesogenic environment' where we are constantly bombarded with choices that encourage us to move less and eat more. Many factors influence our dietary choices, including the expert marketers who advise manufacturers on ways to encourage the population to buy more, especially profitable, palatable 'ultra-processed' foods. Supermarkets themselves have become skilled in manipulating buying behaviour, using their layout and specific product placement as well as advertising to maximise purchases of particular foods. Increasingly, supermarkets push their own 'house' brands. Those marketing fast foods also use persuasive tactics to attract customers, especially children who they entice with non-food items such as promotional or collectable toys. There is no mystery to the increase in obesity: our energy intake from foods and drinks has increased over the same period that energy output has decreased. Obesity has a range of relevant factors, but there is little doubt that marketing from supermarkets and fast food retailers has played a role.
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Affiliation(s)
- Rosemary A Stanton
- School of Medical Sciences, Department of Medicine, University of New South Wales, 2866 Moss Vale Road, Barrengarry, 2577, Australia.
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Negi S, Tak H, Ganapathi TR. Cloning and functional characterization of MusaVND1 using transgenic banana plants. Transgenic Res 2014; 24:571-85. [PMID: 25523085 DOI: 10.1007/s11248-014-9860-6] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2014] [Accepted: 12/12/2014] [Indexed: 01/06/2023]
Abstract
Vascular related NAC (NAM, ATAF and CUC) domain-containing genes regulate secondary wall deposition and differentiation of xylem vessel elements. MusaVND1 is an ortholog of Arabidopsis VND1 and contains the highly conserved NAC domain. The expression of MusaVND1 is highest in developing corm and during lignification conditions, the increase in expression of MusaVND1 coincides with the expression of PAL, COMT and C4H genes. MusaVND1 encodes a nuclear localized protein as MusaVND1-GFP fusion protein gets localized to nucleus. Transient overexpression of MusaVND1 converts banana embryogenic cells to xylem vessel elements, with a final differentiation frequency of 33.54% at the end of tenth day. Transgenic banana plants overexpressing MusaVND1 showed stunted growth and were characterized by PCR and Southern blot analysis. Transgenic banana plants showed transdifferentiation of various types of cells into xylem vessel elements and ectopic deposition of lignin in cells of various plant organs such as leaf and corm. Tracheary element formation was seen in the cortical region of transgenic corm as well as in epidermal cells of leaves. Biochemical analysis indicates significantly higher levels of lignin and cellulose content in transgenic banana lines than control plants. MusaVND1 overexpressing transgenic banana plants showed elevated expression levels of genes involved in lignin and cellulose biosynthesis pathway. Further expression of different MYB transcription factors positively regulating secondary wall deposition was also up regulated in MusaVND1 transgenic lines.
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Affiliation(s)
- Sanjana Negi
- Plant Cell Culture Technology Section, Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai, India
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Bello RH, Linzmeyer P, Franco CMB, Souza O, Sellin N, Medeiros SHW, Marangoni C. Pervaporation of ethanol produced from banana waste. WASTE MANAGEMENT (NEW YORK, N.Y.) 2014; 34:1501-1509. [PMID: 24834817 DOI: 10.1016/j.wasman.2014.04.013] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 03/23/2014] [Accepted: 04/10/2014] [Indexed: 06/03/2023]
Abstract
Banana waste has the potential to produce ethanol with a low-cost and sustainable production method. The present work seeks to evaluate the separation of ethanol produced from banana waste (rejected fruit) using pervaporation with different operating conditions. Tests were carried out with model solutions and broth with commercial hollow hydrophobic polydimethylsiloxane membranes. It was observed that pervaporation performance for ethanol/water binary mixtures was strongly dependent on the feed concentration and operating temperature with ethanol concentrations of 1-10%; that an increase of feed flow rate can enhance the permeation rate of ethanol with the water remaining at almost the same value; that water and ethanol fluxes was increased with the temperature increase; and that the higher effect in flux increase was observed when the vapor pressure in the permeate stream was close to the ethanol vapor pressure. Better results were obtained with fermentation broth than with model solutions, indicated by the permeance and membrane selectivity. This could be attributed to by-products present in the multicomponent mixtures, facilitating the ethanol permeability. By-products analyses show that the presence of lactic acid increased the hydrophilicity of the membrane. Based on this, we believe that pervaporation with hollow membrane of ethanol produced from banana waste is indeed a technology with the potential to be applied.
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Affiliation(s)
- Roger Hoel Bello
- Chemical Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil
| | - Poliana Linzmeyer
- Sanitary and Ambient Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil
| | - Cláudia Maria Bueno Franco
- Sanitary and Ambient Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil
| | - Ozair Souza
- Chemical Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil; Sanitary and Ambient Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil; Masters Program in Process Engineering, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil
| | - Noeli Sellin
- Chemical Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil; Sanitary and Ambient Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil; Masters Program in Process Engineering, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil
| | - Sandra Helena Westrupp Medeiros
- Chemical Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil; Sanitary and Ambient Engineering Department, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil; Masters Program in Process Engineering, University of Joinville Region (UNIVILLE), Joinville, SC, Brazil
| | - Cintia Marangoni
- Federal University of Santa Catarina (UFSC), Campus Blumenau, Blumenau, SC, Brazil.
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Nathoa C, Sirisukpoca U, Pisutpaisal N. Production of Hydrogen and Methane from Banana Peel by Two Phase Anaerobic Fermentation. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.egypro.2014.06.086] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Pisutpaisal N, Boonyawanich S, Saowaluck H. Feasibility of Biomethane Production from Banana Peel. ACTA ACUST UNITED AC 2014. [DOI: 10.1016/j.egypro.2014.06.096] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Zhang C, Li J, Liu C, Liu X, Wang J, Li S, Fan G, Zhang L. Alkaline pretreatment for enhancement of biogas production from banana stem and swine manure by anaerobic codigestion. BIORESOURCE TECHNOLOGY 2013; 149:353-358. [PMID: 24128397 DOI: 10.1016/j.biortech.2013.09.070] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Revised: 09/14/2013] [Accepted: 09/17/2013] [Indexed: 06/02/2023]
Abstract
The objective of this research was to propose and investigate the availability of digested banana stem (BS) to produce biogas. Squeezed BS with less moisture content was used for biogas production through a combination of NaOH pretreatment, solid-state fermentation, and codigestion technologies. NaOH doses were optimized according to biogas fermentation performance, and the best dose was 6% (by weight) based on the total solid (TS) of BS. Under this condition, the lignin, cellulose, and hemicellulose contents decreased from 18.36%, 32.36% and 14.6% to 17.10%, 30.07%, and 10.65%, respectively, after pretreatment. After biogas digestion, TS and volatile solid (VS) reductions of the codigestion were 48.5% and 70.4%, respectively, and the biogas and methane yields based on VS loading were 357.9 and 232.4 mL/g, which were 12.1% and 21.4%, respectively, higher than the control. Results indicated that the proposed process could be an effective method for using BS to produce biogas.
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Affiliation(s)
- Chengming Zhang
- Institute of Nuclear and New Energy Technology, Tsinghua University, Tsinghua Garden, Beijing 100084, PR China; Beijing Engineering Research Center for Biofuels, Beijing 100084, PR China
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Padam BS, Tin HS, Chye FY, Abdullah MI. Banana by-products: an under-utilized renewable food biomass with great potential. Journal of Food Science and Technology 2012; 51:3527-45. [PMID: 25477622 DOI: 10.1007/s13197-012-0861-2] [Citation(s) in RCA: 168] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/13/2012] [Accepted: 09/18/2012] [Indexed: 11/29/2022]
Abstract
Banana (Musaceae) is one of the world's most important fruit crops that is widely cultivated in tropical countries for its valuable applications in food industry. Its enormous by-products are an excellent source of highly valuable raw materials for other industries by recycling agricultural waste. This prevents an ultimate loss of huge amount of untapped biomass and environmental issues. This review discusses extensively the breakthrough in the utilization of banana by-products such as peels, leaves, pseudostem, stalk and inflorescence in various food and non-food applications serving as thickening agent, coloring and flavor, alternative source for macro and micronutrients, nutraceuticals, livestock feed, natural fibers, and sources of natural bioactive compounds and bio-fertilizers. Future prospects and challenges are the important key factors discussed in association to the sustainability and feasibility of utilizing these by-products. It is important that all available by-products be turned into highly commercial outputs in order to sustain this renewable resource and provide additional income to small scale farming industries without compromising its quality and safety in competing with other commercial products.
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Affiliation(s)
- Birdie Scott Padam
- School of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah Malaysia
| | - Hoe Seng Tin
- School of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah Malaysia
| | - Fook Yee Chye
- School of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah Malaysia
| | - Mohd Ismail Abdullah
- School of Food Science and Nutrition, Universiti Malaysia Sabah, Jalan UMS, 88400 Kota Kinabalu, Sabah Malaysia
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The impact of fresh produce specifications on the Australian food and nutrition system: a case study of the north Queensland banana industry. Public Health Nutr 2011; 14:1489-95. [PMID: 21324222 DOI: 10.1017/s1368980010003046] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE To use the north Queensland banana industry as a case study to examine the extent to which cosmetic standards set by retailers influence the amount of edible waste generated on-farm and the effect of this on the sustainability of the Australian food and nutrition system. DESIGN Waste audits were performed on-farm at a banana packing shed to quantify the amount of fruit discarded due to cosmetic imperfections. These data, together with production records provided by the Department of Primary Industries and Fisheries and interviews with growers, were used to inform a nutritional analysis, a life cycle assessment and an economic analysis to quantify nutritional, environmental and economic impacts. SETTING North Queensland, Australia SUBJECTS Banana farms and packing shed.ResultBetween 10 and 30 % of the north Queensland banana crop is discarded on-farm. Of this, 78 % was found to be due to cosmetic imperfections, which equates to an industry total of 37 000 tonnes per annum. This waste represents a loss of 137 billion kilojoules with accompanying macro- and micronutrients. The life cycle assessment indicated that approximately 16 300 tonnes of carbon dioxide emissions, 11·2 gigalitres of virtual water as well as other natural resources are embodied in the waste. There is an industry-wide, economic loss of approximately $AU 26·9 million per annum. CONCLUSIONS The majority of on-farm banana waste is caused by arbitrary cosmetic standards set by retailers, resulting in significant nutritional, environmental and economic losses. Public health nutritionists have a role to play across the entire food chain to minimize the impacts of waste on the food system.
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