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Kusmayadi A, Huang CY, Kit Leong Y, Yen HW, Lee DJ, Chang JS. Utilizing microalgal hydrolysate from dairy wastewater-grown Chlorella sorokiniana SU-1 as sustainable feedstock for polyhydroxybutyrate and β-carotene production by engineered Rhodotorula glutinis #100-29. Bioresour Technol 2023:129277. [PMID: 37290703 DOI: 10.1016/j.biortech.2023.129277] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/24/2023] [Revised: 05/31/2023] [Accepted: 06/01/2023] [Indexed: 06/10/2023]
Abstract
The objective of this study was to explore the potential of utilizing Chlorella sorokiniana SU-1 biomass grown on dairy wastewater-amended medium as sustainable feedstock for the biosynthesis of β-carotene and polyhydroxybutyrate (PHB) by Rhodotorula glutinis #100-29. To break down the rigid cell wall, 100 g/L of microalgal biomass was treated with 3% sulfuric acid, followed by detoxification using 5% activated carbon to remove the hydroxymethylfurfural inhibitor. The detoxified microalgal hydrolysate (DMH) was used for flask-scale fermentation, which yielded a maximum biomass production of 9.22 g/L, with PHB and β-carotene concentration of 897 mg/L and 93.62 mg/L, respectively. Upon scaling up to a 5-L fermenter, the biomass concentration increased to 11.2 g/L, while the PHB and β-carotene concentrations rose to 1830 mg/L and 134.2 mg/L. These outcomes indicate that DMH holds promise as sustainable feedstock for the production of PHB and β-carotene by yeast.
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Affiliation(s)
- Adi Kusmayadi
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan
| | - Chi-Yu Huang
- Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, Taiwan; Department of Environmental Science and Engineering, Tunghai University, Taichung, Taiwan
| | - Yoong Kit Leong
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, Taiwan
| | - Hong-Wei Yen
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan
| | - Duu-Jong Lee
- Department of Mechanical Engineering, City University of Hong Kong, Kowloon Tang, Hong Kong
| | - Jo-Shu Chang
- Department of Chemical and Materials Engineering, Tunghai University, Taichung, Taiwan; Research Center for Smart Sustainable Circular Economy, Tunghai University, Taichung, Taiwan; Department of Chemical Engineering, National Cheng Kung University, Tainan, Taiwan; Department of Chemical Engineering and Materials Science, Yuan Ze University, Chung-Li, Taiwan.
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Yang H, Li T, Cao W. Optimizing pre-treatment of alkaline hydrolysis RP-HPLC for enhancing accuracy of soy isoflavone determination. J Chromatogr B Analyt Technol Biomed Life Sci 2022; 1207:123382. [PMID: 35878432 DOI: 10.1016/j.jchromb.2022.123382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 06/11/2022] [Accepted: 07/18/2022] [Indexed: 11/18/2022]
Abstract
Isoflavones (IFs) are important bioactive compounds which offers several benefits to human health. Despite the importance of IFs content, there are still some deficiencies in the existing methods. The objective of this study is to optimize key parameters of alkaline hydrolysis method for enhancing both reliability and accuracy of quantitative analysis of IFs contents in soybeans and soy protein products. Solvent type, extraction temperature, heating mode, alkaline concentration, hydrolysis temperature, hydrolysis time and some details are key points to target analytes which yield determining parameters. The biggest IFs content was obtained by extraction using methanol (MeOH)/water (80:20, v/v) in a 75 ℃ oven for 2 h, and hydrolyzation with 3 M NaOH solution at a room temperature for 10 mins. The total IFs content obtained by the improved method has increased by 16.4% compared with AOAC Official Method 2001.10. The accuracy of the method was evaluated using the relative standard deviation (RSD). Intraday accuracies in the total amount of isoflavones of four samples were 0.03%-0.63% (n = 3). Interday accuracy in the total amount of isoflavones was 2.71% (n = 6). LOD of IFs ranged from 0.1μg/mL for aglycones to 0.2μg/mL for glucosides. LOQ of IFs ranged from 0.3μg/mL for aglycones to 0.5μg/mL for glucosides. The improved method was proven to be a more accurate way to determine IFs contents in soybeans and soy protein products and thus making it useful for quality control and systematic in-depth study of soybeans and soy products; even to further assess the dietary soy exposure and the soy-health association.
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Affiliation(s)
- Hong Yang
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd. Shanghai 200137, China
| | - Tong Li
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd. Shanghai 200137, China
| | - Wenming Cao
- Wilmar (Shanghai) Biotechnology Research & Development Center Co., Ltd. Shanghai 200137, China.
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Härrer D, Windhorst C, Böhner N, Novion Ducassou J, Couté Y, Gescher J. Production of acetoin from renewable resources under heterotrophic and mixotrophic conditions. Bioresour Technol 2021; 329:124866. [PMID: 33647604 DOI: 10.1016/j.biortech.2021.124866] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 02/08/2021] [Accepted: 02/11/2021] [Indexed: 06/12/2023]
Abstract
This study aimed to reveal whether Cupriavidus necator H16 is suited for the production of acetoin based on the carboxylic acids acetate, butyrate and propionate under heterotrophic and mixotrophic conditions. The chosen production strain, lacking the polyhydroxybutyrate synthases phaC1 and phaC2, was revealed to be beneficiary for autotrophic acetoin production. Proteomic analysis of the strain determined that the deletions do indeed have a significant impact on pyruvate formation and its subsequent direction towards the introduced acetoin-synthesis pathway. Moreover, the strain was tested for its ability to use typical dark fermentation products under hetero- and mixotrophic conditions. Growth with butyrate and acetate led to low efficiencies, while 46.54% ±0.78 of the added propionate was converted into acetoin. Interestingly, mixotrophic conditions led to simultaneous consumption of acetate and butyrate with the gaseous substrates and lowered efficiency. In contrast, mixotrophic propionate consumption led to diauxic behavior and high carbon efficiency of 71.2% ±0.64.
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Affiliation(s)
- Daniel Härrer
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Karlsruhe, Germany.
| | - Carina Windhorst
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Karlsruhe, Germany
| | - Nicola Böhner
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Karlsruhe, Germany.
| | | | - Yohann Couté
- University Grenoble Alpes, CEA, INSERM, IRIG, BGE, Grenoble, France.
| | - Johannes Gescher
- Institute for Applied Biosciences, Department of Applied Biology, Karlsruhe Institute of Technology, Karlsruhe, Germany; Institute for Biological Interfaces, Karlsruhe Institute of Technology (KIT), Eggenstein-Leopoldshafen, Germany.
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Balli D, Bellumori M, Orlandini S, Cecchi L, Mani E, Pieraccini G, Mulinacci N, Innocenti M. Optimized hydrolytic methods by response surface methodology to accurately estimate the phenols in cereal by HPLC-DAD: The case of millet. Food Chem 2019; 303:125393. [PMID: 31466028 DOI: 10.1016/j.foodchem.2019.125393] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Revised: 07/30/2019] [Accepted: 08/18/2019] [Indexed: 12/20/2022]
Abstract
Extraction of free and bound phenols from millet in acidic and basic hydrolytic conditions were compared for the first time. Acidic hydrolysis was able to extract the highest amount of total phenolic compounds (up to 178 mg/100 g) while the basic hydrolysis underestimates the phenolic concentration. Our findings pointed out for the first time that methyl ferulate is naturally present as bound phenol in millet. Response Surface Methodology was then applied to both acidic and basic hydrolytic extractive conditions: the acidic procedure, optimized in terms of extractive time and temperature and concentration of the acidic mean, gave the best results, allowing definition of Method Operable Design Region and quantitation of the total amount of phenols in millet samples in a single extractive step. This optimized method is suitable for further accurate investigations of the typical phenols of the numerous varieties of this recently re-discovered minor cereal.
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Affiliation(s)
- Diletta Balli
- Department of NEUROFARBA, and Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A), University of Florence, Via Ugo Schiff 6, 50019 Sesto F.No, Firenze, Italy
| | - Maria Bellumori
- Department of NEUROFARBA, and Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A), University of Florence, Via Ugo Schiff 6, 50019 Sesto F.No, Firenze, Italy
| | - Serena Orlandini
- Dipartimento di Chimica "Ugo Schiff", University of Florence, Via U. Schiff 6, 50019 Sesto Fiorentino, Firenze, Italy
| | - Lorenzo Cecchi
- Department of NEUROFARBA, and Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A), University of Florence, Via Ugo Schiff 6, 50019 Sesto F.No, Firenze, Italy
| | - Elisa Mani
- Department of NEUROFARBA, and Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A), University of Florence, Via Ugo Schiff 6, 50019 Sesto F.No, Firenze, Italy
| | - Giuseppe Pieraccini
- Mass Spectrometry Center (CISM), Department of Health Sciences, University of Florence, Viale G. Pieraccini 6, 50139 Firenze, Italy
| | - Nadia Mulinacci
- Department of NEUROFARBA, and Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A), University of Florence, Via Ugo Schiff 6, 50019 Sesto F.No, Firenze, Italy.
| | - Marzia Innocenti
- Department of NEUROFARBA, and Multidisciplinary Centre of Research on Food Sciences (M.C.R.F.S.-Ce.R.A), University of Florence, Via Ugo Schiff 6, 50019 Sesto F.No, Firenze, Italy
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Abstract
Two agricultural wastes, rice bran and cassava pulp were subjected to acidic hydrolysis by 2 M sulfuric acid which resulted in hemicellulosic oligosaccharide mixtures. Monosaccharide component analysis of these mixtures revealed that the oligosaccharides of rice bran acid hydrolysate (RAHF) composed of glucose and arabinose while cassava pulp acid hydrolysate (CAHF) was found to be comprised of glucose, galactose and arabinose. Both RAHF and CAHF were able to fuel all of the tested three Lactobacillus, five Bifidobacterium and three Bacteroides strains indicating the prebiotic potential of these oligosaccharide mixtures. Moreover, Lb. gasseri grew significantly better on RAHF than on inulin, a benchmark prebiotic oligo- and polysaccharide mixture. When the digestibility of RAHF and CAHF were tested it was found that these oligosaccharide mixtures were only slightly hydrolyzed upon exposure to simulated human gastric (by less than 8%) and pancreatic juices (by less than 3%). Additionally, most sensory attributes of the above obtained oligosaccharide mixtures supplemented two model cereal drink formulations were generally not different from those of the control, while the overall acceptance was not affected significantly in one cereal drink formulation.
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Affiliation(s)
- Chanida Hansawasdi
- Food Science and Technology, Science Division, International College, Mahidol University, Buddhamonthon 4 Rd, Nakhonpathom, Salaya, 73170, Thailand
| | - Peter Kurdi
- Food Biotechnology Laboratory, Food Biotechnology Research Unit, National Center for Genetic Engineering and Biotechnology (BIOTEC), 113 Thailand Science Park, Phahonyothin Road, Klong Nueng, Klong Luang, Pathum Thani, 12120, Thailand.
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Shin HJ, Park NH, Lee W, Choi MH, Chung BC, Hong J. Metabolic profiling of tyrosine, tryptophan, and glutamate in human urine using gas chromatography-tandem mass spectrometry combined with single SPE cleanup. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1051:97-107. [PMID: 28340481 DOI: 10.1016/j.jchromb.2017.03.015] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2017] [Revised: 03/06/2017] [Accepted: 03/14/2017] [Indexed: 11/25/2022]
Abstract
The tyrosine, tryptophan, and glutamate metabolic pathways play key roles on pathological state of neuronal functions and the change of their levels in biological systems reflects the progress degree of neuronal diseases. Comprehensive profiling of these metabolites is important to find new biomarkers for diagnosis or prognosis of various neuronal diseases. However, the overall profiling analysis of various neurochemicals in biological sample is confronted with several limitations due to their low concentration and physicochemical properties and the coexistence of matrices. We developed an efficient and feasible method using gas chromatography-tandem mass spectrometry (GC-MS/MS). Wide-bore mixed cation exchange (MCX) SPE process enables a rapid and effective cleanup of 20 neurochemicals even including acidic and basic neurochemicals in a single SPE cartridge by using different composition of eluents. Selective derivatization of various types of metabolites was applied to achieve highly chromatographic separation and sensitive mass detection. Appropriate selection of precursor and product transition ions used in multiple reaction-monitoring (MRM) mode based on the MS/MS fragmentations of the derivatized neurochemicals could be significantly minimized the matrix effects and enhanced the reliability of quantification results. The developed method was validated in terms of linearity, limits of detection, precision, accuracy, and matrix effects. The intra- and inter-assay analytical variations were less than 10%. The overall linearity for all of the targets was excellent (R2≥0.996). The detection limits ranged between 0.38 and 8.13ng/mL for the acidic neurochemicals and between 0.02 and 11.1ng/mL for the basic neurochemicals. The developed protocol will be expected to be a promising tool for the understanding of the pathological state and diagnosis of various neuronal diseases.
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Affiliation(s)
- Hyun Ju Shin
- College of Pharmacy, Kyung Hee University, Seoul 130-701, Korea
| | - Na Hyun Park
- College of Pharmacy, Kyung Hee University, Seoul 130-701, Korea
| | - Wonwoong Lee
- College of Pharmacy, Kyung Hee University, Seoul 130-701, Korea
| | - Man Ho Choi
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
| | - Bong Chul Chung
- Molecular Recognition Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
| | - Jongki Hong
- College of Pharmacy, Kyung Hee University, Seoul 130-701, Korea.
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Carrillo-Reyes J, Buitrón G. Biohydrogen and methane production via a two-step process using an acid pretreated native microalgae consortium. Bioresour Technol 2016; 221:324-330. [PMID: 27648852 DOI: 10.1016/j.biortech.2016.09.050] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2016] [Revised: 09/07/2016] [Accepted: 09/11/2016] [Indexed: 06/06/2023]
Abstract
A native microalgae consortium treated under thermal-acidic hydrolysis was used to produce hydrogen and methane in a two-step sequential process. Different acid concentrations were tested, generating hydrogen and methane yields of up to 45mLH2gVS-1 and 432mLCH4gVS-1, respectively. The hydrogen production step solubilized the particulate COD (chemical oxygen demand) up to 30%, creating considerable amounts of volatile fatty acids (up to 10gCODL-1). It was observed that lower acid concentration presented higher hydrogen and methane production potential. The results revealed that thermal acid hydrolysis of a native microalgae consortium is a simple but effective strategy for producing hydrogen and methane in the sequential process. In addition to COD removal (50-70%), this method resulted in an energy recovery of up to 15.9kJ per g of volatile solids of microalgae biomass, one of the highest reported.
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Affiliation(s)
- Julian Carrillo-Reyes
- Laboratory for Research on Advanced Processes for Water Treatment, Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro 76230, Mexico
| | - Germán Buitrón
- Laboratory for Research on Advanced Processes for Water Treatment, Unidad Académica Juriquilla, Instituto de Ingeniería, Universidad Nacional Autónoma de México, Blvd. Juriquilla 3001, Querétaro 76230, Mexico.
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Luo C, Wang X, Gao G, Wang L, Li Y, Sun C. Identification and quantification of free, conjugate and total phenolic compounds in leaves of 20 sweetpotato cultivars by HPLC-DAD and HPLC-ESI-MS/MS. Food Chem 2013; 141:2697-706. [PMID: 23871013 DOI: 10.1016/j.foodchem.2013.05.009] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2012] [Revised: 04/16/2013] [Accepted: 05/05/2013] [Indexed: 11/24/2022]
Abstract
The study systematically investigated free, conjugate and total phenolics (phenolic acids and flavonoids) in leaves of 19 Chinese and one American sweetpotato cultivars grown in China. Three extraction/hydrolytic methods (direct extraction and acidic and basic hydrolysis) for sample preparation were employed to obtain different forms of phenolics. Twenty-nine phenolics were separated and identified using HPLC-DAD and HPLC-ESI-MS/MS. Three quercetin glycosides were characterised for the first time from this plant. Contents of the principal phenolics identified were determined by the HPLC-DAD procedure, which was validated in terms of linearity, precision, accuracy and limit of detection and quantification. Moreover, to the best of our knowledge, it is the first to reveal and demonstrate artifacts of esterification during acidic methanolic and ethanolic hydrolysis, and chromatographic behaviours, UV spectra and MS data of 20 hydroxycinnamic acid methyl and ethyl esters were obtained using acidic methanolic and ethanolic hydrolysis.
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Key Words
- 3,4,5-tri-O-caffeoylquinic acid
- 3,4,5-triCQA
- 3,4-di-O-caffeoylquinic acid
- 3,4-diCQA
- 3,5-di-O-caffeoylquinic acid
- 3,5-diCQA
- 3-CQA
- 3-O-caffeoylquinic acid
- 4,5-di-O-caffeoylquinic acid
- 4,5-diCQA
- 4-CQA
- 4-O-caffeoylquinic acid
- 5-CQA
- 5-O-caffeoylquinic acid
- Acidic hydrolysis
- Basic hydrolysis
- CA
- CFQA
- CQAs
- Caffeoylquinic acid methyl and ethyl esters
- ChA
- ChAs
- EDTA–Na(2)
- FA
- FQA
- Flavonoids
- HBAs
- HCAs
- Hydroxycinnamic acid methyl and ethyl esters
- Phenolic acids
- QA
- SF
- Sweetpotato (Ipomoea batatas L.) leaves
- TBHQ
- caffeic acid
- caffeoyl-feruloylquinic acid
- caffeoylquinic acids
- chlorogenic acid
- chlorogenic acids
- ethylenediaminetetraacetic acid disodium
- ferulic acid
- feruloylquinic acid
- hydroxybenzoic acids
- hydroxycinnamic acids
- p-CoA
- p-coumaric acid
- quinic acid
- sinapic acid
- tert-butylhydroquinone
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