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Hoang TD, Van Anh N, Yusuf M, Ali S A M, Subramanian Y, Hoang Nam N, Minh Ky N, Le VG, Thi Thanh Huyen N, Abi Bianasari A, K Azad A. Valorization of Agriculture Residues into Value-Added Products: A Comprehensive Review of Recent Studies. CHEM REC 2024:e202300333. [PMID: 39051717 DOI: 10.1002/tcr.202300333] [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: 10/27/2023] [Revised: 04/08/2024] [Indexed: 07/27/2024]
Abstract
Global agricultural by-products usually go to waste, especially in developing countries where agricultural products are usually exported as raw products. Such waste streams, once converted to "value-added" products could be an additional source of revenue while simultaneously having positive impacts on the socio-economic well-being of local people. We highlight the utilization of thermochemical techniques to activate and convert agricultural waste streams such as rice and straw husk, coconut fiber, coffee wastes, and okara power wastes commonly found in the world into porous activated carbons and biofuels. Such activated carbons are suitable for various applications in environmental remediation, climate mitigation, energy storage, and conversions such as batteries and supercapacitors, in improving crop productivity and producing useful biofuels.
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Affiliation(s)
- Tuan-Dung Hoang
- School of Chemistry and Life Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet, Hai Ba Trung, Hanoi 10000, Vietnam
- Vietam National Univeristy Hanoi -, School of Interdisciplinary Sciences and Arts, 144 Cau Giay, Hanoi, 10000, Hanoi, Vietnam
| | - Nguyen Van Anh
- School of Chemistry and Life Science, Hanoi University of Science and Technology, No. 1 Dai Co Viet, Hai Ba Trung, Hanoi 10000, Vietnam
| | - Mohammad Yusuf
- Clean Energy Technologies Research Institute (CETRI), Faculty of Engineering and Applied Science, University of Regina, 3737 Wascana Parkway, Regina, SK S4S 0A2, Canada
- Centre of Research Impact and Outcome, Chitkara University Institute of Engineering and Technology, Chitkara University, 140401, Punjab, India
| | - Muhammed Ali S A
- Fuel Cell Institute, (CETRI), Universiti Kebangsasn Malaysia, 43600, Bangi, Malaysia
| | - Yathavan Subramanian
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, BE1410, Bandar Seri Begawan, Brunei Darussalam
| | - Nguyen Hoang Nam
- Faculty of Environment, Climate change and Urban Studies, National Economics University, 10000, Hanoi, Vietnam
| | - Nguyen Minh Ky
- Faculty of Environment and Natural Resources, Nong Lam University, Hamlet 6, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, 700000, Vietnam
| | - Van-Giang Le
- Central Institute for Natural Resources and Environmental Studies, Vietnam National University (CRES-VNU), Hanoi, 111000, Vietnam
| | | | - Alien Abi Bianasari
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, BE1410, Bandar Seri Begawan, Brunei Darussalam
| | - Abul K Azad
- Faculty of Integrated Technologies, Universiti Brunei Darussalam, BE1410, Bandar Seri Begawan, Brunei Darussalam
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Scott CJR, McGregor NGS, Leadbeater DR, Oates NC, Hoßbach J, Abood A, Setchfield A, Dowle A, Overkleeft HS, Davies GJ, Bruce NC. Parascedosporium putredinis NO1 tailors its secretome for different lignocellulosic substrates. Microbiol Spectr 2024; 12:e0394323. [PMID: 38757984 PMCID: PMC11218486 DOI: 10.1128/spectrum.03943-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 04/19/2024] [Indexed: 05/18/2024] Open
Abstract
Parascedosporium putredinis NO1 is a plant biomass-degrading ascomycete with a propensity to target the most recalcitrant components of lignocellulose. Here we applied proteomics and activity-based protein profiling (ABPP) to investigate the ability of P. putredinis NO1 to tailor its secretome for growth on different lignocellulosic substrates. Proteomic analysis of soluble and insoluble culture fractions following the growth of P. putredinis NO1 on six lignocellulosic substrates highlights the adaptability of the response of the P. putredinis NO1 secretome to different substrates. Differences in protein abundance profiles were maintained and observed across substrates after bioinformatic filtering of the data to remove intracellular protein contamination to identify the components of the secretome more accurately. These differences across substrates extended to carbohydrate-active enzymes (CAZymes) at both class and family levels. Investigation of abundant activities in the secretomes for each substrate revealed similar variation but also a high abundance of "unknown" proteins in all conditions investigated. Fluorescence-based and chemical proteomic ABPP of secreted cellulases, xylanases, and β-glucosidases applied to secretomes from multiple growth substrates for the first time confirmed highly adaptive time- and substrate-dependent glycoside hydrolase production by this fungus. P. putredinis NO1 is a promising new candidate for the identification of enzymes suited to the degradation of recalcitrant lignocellulosic feedstocks. The investigation of proteomes from the biomass bound and culture supernatant fractions provides a more complete picture of a fungal lignocellulose-degrading response. An in-depth understanding of this varied response will enhance efforts toward the development of tailored enzyme systems for use in biorefining.IMPORTANCEThe ability of the lignocellulose-degrading fungus Parascedosporium putredinis NO1 to tailor its secreted enzymes to different sources of plant biomass was revealed here. Through a combination of proteomic, bioinformatic, and fluorescent labeling techniques, remarkable variation was demonstrated in the secreted enzyme response for this ascomycete when grown on multiple lignocellulosic substrates. The maintenance of this variation over time when exploring hydrolytic polysaccharide-active enzymes through fluorescent labeling, suggests that this variation results from an actively tailored secretome response based on substrate. Understanding the tailored secretomes of wood-degrading fungi, especially from underexplored and poorly represented families, will be important for the development of effective substrate-tailored treatments for the conversion and valorization of lignocellulose.
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Affiliation(s)
- Conor J R Scott
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Nicholas G S McGregor
- York Structural Biology Laboratory, Department of Chemistry, The University of York, York, United Kingdom
| | - Daniel R Leadbeater
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Nicola C Oates
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Janina Hoßbach
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Amira Abood
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Alexander Setchfield
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
| | - Adam Dowle
- Bioscience Technology Facility, Department of Biology, University of York, York, United Kingdom
| | | | - Gideon J Davies
- York Structural Biology Laboratory, Department of Chemistry, The University of York, York, United Kingdom
| | - Neil C Bruce
- Centre for Novel Agricultural Products, Department of Biology, University of York, York, United Kingdom
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Tufail T, Saeed F, Tufail T, Bader Ul Ain H, Hussain M, Noreen S, Shah MA. Exploring the cholesterol-lowering effects of cereal bran cell wall-enriched diets. Food Sci Nutr 2024; 12:4944-4951. [PMID: 39055199 PMCID: PMC11266912 DOI: 10.1002/fsn3.4141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 02/16/2024] [Accepted: 03/16/2024] [Indexed: 07/27/2024] Open
Abstract
Cell wall polysaccharides (dietary fiber) in cereal grains contribute to health benefits. The novelty of the current study was an effort to explore the in vivo therapeutic potential of different cereal bran cell walls against hypercholesterolemia. For this purpose, the cell walls were isolated from different cereal brans (wheat, maize, oats, and barley), and the intake of these cereal bran cell walls was evaluated for their anti-lipidemic activity in normal and hypercholesterolemic rats. The serum taken from the rats was tested for cholesterol, lipid, and triglyceride profiles before and after treatment. The outcomes of the current study have shown that the cereal cell wall has a significant hypercholesterolemia effect. The biochemical parameters of the control animals were within the normal clinical ranges, indicating that the experimental diets were safe. Among cereal bran cell walls, barley bran significantly decreased cholesterol (56.35 ± 1.35 mg/dL), low-density lipoprotein (56.35 ± 1.05 mg/dL), triglycerides (105.29 ± 1.95 mg/dL), and increased high-density lipoprotein level (48.35 ± 1.35 mg/dL). These findings provide conclusive evidence that the cereal cell wall is beneficial in the treatment of hypercholesterolemia and may potentially provide protection against other acute, recurring, or chronic illnesses.
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Affiliation(s)
- Tabussam Tufail
- School of Food and Biological Engineering, Jiangsu UniversityZhenjiangChina
- University Institute of Diet & Nutritional SciencesThe University of LahoreLahorePakistan
- Faculty of Health and Life Sciences, Persiaran Perdana BBN, 71800 Putra Nilai, NilaiINTI International UniversityNegeri SembilanMalaysia
| | - Farhan Saeed
- Department of Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | | | - Huma Bader Ul Ain
- University Institute of Diet & Nutritional SciencesThe University of LahoreLahorePakistan
| | - Muzzamal Hussain
- Department of Food SciencesGovernment College University FaisalabadFaisalabadPakistan
| | - Sana Noreen
- University Institute of Diet & Nutritional SciencesThe University of LahoreLahorePakistan
| | - Mohd Asif Shah
- Department of EconomicsKabridahar UniversityKabridaharSomaliEthiopia
- Centre of Research Impact and Outcome, Chitkara University Institute of Engineering and TechnologyChitkara UniversityRajpuraPunjabIndia
- Division of Research and DevelopmentLovely Professional UniversityPhagwaraPunjabIndia
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Raimanova I, Svoboda P, Moulik M, Wollnerova J, Haberle J. The Effect of Water Availability on the Carbon Content of Grain and Above- and Belowground Residues in Common and Einkorn Wheat. PLANTS (BASEL, SWITZERLAND) 2024; 13:181. [PMID: 38256735 PMCID: PMC10820846 DOI: 10.3390/plants13020181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/13/2023] [Revised: 01/07/2024] [Accepted: 01/08/2024] [Indexed: 01/24/2024]
Abstract
The carbon (C) fixed by crops, which is exported with harvest and retained as postharvest residues in a field, is important for calculating the C balance. The aim of this study was to determine the effect of water availability on the C content in whole wheat plants. In a three-year field trial, the weights of grain, straw, chaff, stubble, and roots of two cultivars of winter wheat (Triticum aestivum L.) and one cultivar of einkorn wheat (Triticum monococcum L.) and their carbon contents were determined in water stress, irrigation, and rain-fed control treatments. The water availability, year, and cultivar had a significant influence on the C content in aboveground plant parts, but the effect of water on grain C was weak. The C content decreased with irrigation and increased with drought, but the differences were small (at most, 3.39% in chaff). On average, the C contents of grain, straw, chaff, and roots reached 45.0, 45.7, 42.6, and 34.9%, respectively. The amount of C exported with grain and left on the field in the form of postharvest residues depended on the weight of the total biomass and the ratio of grain to straw and residue. Whole plant C yield reached 8.99, 7.46, and 9.65 t ha-1 in rain-fed control, stressed, and irrigated treatments, respectively, and 8.91, 9.45, and 7.47 t ha-1 in Artix, Butterfly, and Rumona, respectively. Irrigation significantly increased the C content in grain and straw (but not in chaff, stubble, and roots) in comparison with water shortage conditions. On average, a grain yield of 1 t ha-1 corresponded to an average export of 0.447-0.454 t C ha-1 in the grain of all cultivars and inputs of 0.721, 0.832, and 2.207 t C ha-1 of residue to the soil in the form of straw and postharvest residue in the two cultivars of common wheat and one of einkorn. The results of the study provided reliable data for the calculation of the C balance of wheat under conditions of different water availability.
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Affiliation(s)
- Ivana Raimanova
- Department of Sustainable Arable Land Management and Cropping Systems, Crop Research Institute, 16106 Prague, Czech Republic; (P.S.); (M.M.); (J.W.); (J.H.)
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Sztupecki W, Rhazi L, Depeint F, Aussenac T. Functional and Nutritional Characteristics of Natural or Modified Wheat Bran Non-Starch Polysaccharides: A Literature Review. Foods 2023; 12:2693. [PMID: 37509785 PMCID: PMC10379113 DOI: 10.3390/foods12142693] [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: 04/30/2023] [Revised: 06/27/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Wheat bran (WB) consists mainly of different histological cell layers (pericarp, testa, hyaline layer and aleurone). WB contains large quantities of non-starch polysaccharides (NSP), including arabinoxylans (AX) and β-glucans. These dietary fibres have long been studied for their health effects on management and prevention of cardiovascular diseases, cholesterol, obesity, type-2 diabetes, and cancer. NSP benefits depend on their dose and molecular characteristics, including concentration, viscosity, molecular weight, and linked-polyphenols bioavailability. Given the positive health effects of WB, its incorporation in different food products is steadily increasing. However, the rheological, organoleptic and other problems associated with WB integration are numerous. Biological, physical, chemical and combined methods have been developed to optimise and modify NSP molecular characteristics. Most of these techniques aimed to potentially improve food processing, nutritional and health benefits. In this review, the physicochemical, molecular and functional properties of modified and unmodified WB are highlighted and explored. Up-to-date research findings from the clinical trials on mechanisms that WB have and their effects on health markers are critically reviewed. The review points out the lack of research using WB or purified WB fibre components in randomized, controlled clinical trials.
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Affiliation(s)
| | | | | | - Thierry Aussenac
- Institut Polytechnique Unilasalle, Université d’Artois, ULR 7519, 60026 Beauvais, France; (W.S.); (L.R.); (F.D.)
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Chen Z, Mense AL, Brewer LR, Shi YC. Wheat bran layers: composition, structure, fractionation, and potential uses in foods. Crit Rev Food Sci Nutr 2023; 64:6636-6659. [PMID: 36728922 DOI: 10.1080/10408398.2023.2171962] [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: 02/03/2023]
Abstract
Wheat bran, the main by-product of dry milling of wheat, is currently mainly used in the animal feed industry, but has attracted attention as a food ingredient owing to its high dietary fiber and phytochemical contents, providing excellent physiological effects. The bran layers (aleurone layer, outer pericarp and intermediate layer) contain different compositions, structures, and nutrients, and have different properties. Each layer, when separated and isolated, potentially could find more extensive applications in foods. This triggered interest in isolating the bran layers using milling and wet- or dry-fractionation techniques based on their chemical or physical properties. The recent progress has allowed the production of commercial products from wheat bran layers, particularly aleurone-rich products, enhancing the value of wheat bran layers and their applications in food. The present review highlights the recent advances in studying the chemical composition including distribution of chemical components, physical structure, biopolymer matrix, and physicochemical properties of each wheat bran layer. Technologies to fractionate wheat bran layers and utilization of different bran layers in foods are discussed and reviewed, providing new strategies for improving the value of wheat bran and utilization of wheat bran in foods.
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Affiliation(s)
- Zhongwei Chen
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu Province, PR China
| | - Andrew L Mense
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
- Wheat Marketing Center, Portland, OR, USA
| | - Lauren R Brewer
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
| | - Yong-Cheng Shi
- Department of Grain Science and Industry, Kansas State University, Manhattan, KS, USA
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Martínez-Yáñez MG, Silva-Ortega CO, Hernández-Aranda VA, Vallejo-Pérez MR, Alcalá-Briseño R, Vega-Manriquez DX, Aguilar-Benítez G, Jarquin-Gálvez R, Lara-Ávila JP. Analysis of Bacterial Microbiota of Aerated Compost Teas and Effect on Tomato Growth. MICROBIAL ECOLOGY 2022:10.1007/s00248-022-02156-9. [PMID: 36520176 DOI: 10.1007/s00248-022-02156-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
Mature composts and their water-based extracts, known as aerated compost teas (ACTs), are biofertilizers that share bioactive effects like soil restoration and plant health promotion, widely used for sustainable agriculture. Bioactive effects of compost and ACTs could be associated with their physicochemical and biological characteristics, like carbon/nitrogen (C/N) ratio and microbiota structure respectively. In our study, we elaborated ACTs using mature homemade compost, wheat bran, and grass clippings, following the C/N ratio criteria. Irrigation of tomato plantlets with ACT whose C/N ratio was close to the expected C/N ratio for mature compost evidenced plant growth promotion. Exploring the bacterial microbiota of elaborated ACTs and origin compost revealed significant structural differences, including phyla involved in N mineralization and free-living N-fixing bacteria. Therefore, ACTs harbor diverse bacterial microbiota involved in the N cycle, which would enrich plant and soil bacterial communities at the taxonomic and functional levels. Furthermore, ACTs are considered a part of agroecological and circular economy approaches.
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Affiliation(s)
| | | | | | - Moisés Roberto Vallejo-Pérez
- CONACYT, Universidad Autónoma de San Luis Potosí. Coordinación para la Innovación y Aplicación de la Ciencia y la Tecnología (CIACYT), San Luis Potosí, SLP, México
| | | | - Delia Xochil Vega-Manriquez
- Facultad de Agronomía y Veterinaria, Universidad Autónoma de San Luis Potosí, Soledad de Graciano Sánchez, SLP, México
| | - Gisela Aguilar-Benítez
- Facultad de Agronomía y Veterinaria, Universidad Autónoma de San Luis Potosí, Soledad de Graciano Sánchez, SLP, México
| | - Ramón Jarquin-Gálvez
- Facultad de Agronomía y Veterinaria, Universidad Autónoma de San Luis Potosí, Soledad de Graciano Sánchez, SLP, México
| | - José Pablo Lara-Ávila
- Facultad de Agronomía y Veterinaria, Universidad Autónoma de San Luis Potosí, Soledad de Graciano Sánchez, SLP, México.
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Besaury L, Fromentin J, Detain J, Rodrigues CM, Harakat D, Rémond C. Transcriptomic analysis of lignocellulose degradation by Streptomyces coelicolor A3(2) and elicitation of secondary metabolites production. FEMS Microbiol Lett 2022; 369:6776015. [PMID: 36302146 DOI: 10.1093/femsle/fnac101] [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: 11/25/2021] [Revised: 05/23/2022] [Accepted: 10/25/2022] [Indexed: 12/13/2022] Open
Abstract
Streptomyces coelicolor A3(2) is considered as the model strain among the Streptomyces and has the capacity to produce several natural molecules. Our hypothesis was that cultivation of the strain onto a complex carbon source such as wheat bran (WB) would induce the production of various secondary metabolites due to the presence of complex polysaccharides. A multiapproach has been performed in order to investigate: (1) whether that strain could degrade lignocellulose; (2) which enzymatic and metabolic pathways secondary were over-expressed when grown on WB. The transcriptomic approach showed the expression of several CAZymes significantly expressed when grown on WB such as endoglucanases (encoding for GH74, GH5_8, and GH12) and xylanases (GH11 and CE4 encoding for respectively endo-1,4-beta-xylanase and an acetyl-xylan esterase). Enzymatic activities showed an expression of xylanase (115.3 ± 32.2 mUI/ml) and laccase-peroxidase (101.5 ± 10.9 mUI/ml) during WB degradation by S. coelicolor A3(2). Metabolomics showed that the production of secondary metabolites differed between growth on either glucose or WB as carbon source, which may be correlated to the complexity of carbon compounds within WB, which are similar to the ones encountered in soils and should represent more the in situ carbon conditions which Streptomyces might face off. This opens opportunities for the bioproduction of molecules of interest from WB.
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Affiliation(s)
- Ludovic Besaury
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, chaire AFERE, 51097 Reims, France
| | - Jean Fromentin
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, chaire AFERE, 51097 Reims, France
| | - Julian Detain
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, chaire AFERE, 51097 Reims, France
| | | | - Dominique Harakat
- Université de Reims Champagne Ardenne, CNRS, ICMR UMR 7312, 51097 Reims, France
| | - Caroline Rémond
- Université de Reims Champagne Ardenne, INRAE, FARE, UMR A 614, chaire AFERE, 51097 Reims, France
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Saini P, Islam M, Das R, Shekhar S, Sinha ASK, Prasad K. Wheat Bran as Potential Source of Dietary Fiber: Prospects and Challenges. J Food Compost Anal 2022. [DOI: 10.1016/j.jfca.2022.105030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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10
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Cruz-Davila J, Perez JV, Castillo DSD, Diez N. Fusarium graminearum as a producer of xylanases with low cellulases when grown on wheat bran. BIOTECHNOLOGY REPORTS 2022; 35:e00738. [PMID: 35619590 PMCID: PMC9127173 DOI: 10.1016/j.btre.2022.e00738] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/13/2022] [Accepted: 05/15/2022] [Indexed: 11/29/2022]
Abstract
Endophytic fungi of cacao had important xylanase activity when grown on wheat bran. F. graminearum strain Ec220 produced xylanases with low cellulolytic activity. Xylanase production was optimized using response surface methodology. Proteomic analysis revealed similarities with previously reported xylanases.
The xylanolytic potential of endophytic fungi isolated from leaves of Theobroma cacao was explored for the first time. Four fungal strains showed significant amounts of xylanase activity and low cellulase levels when grown on wheat bran as the sole carbon source. Strain Ec220 of Fusarium graminearum had the highest xylanase production (1.79 U/ml), whereas its cellulase activity was minimal (0.24 U/ml). Optimal conditions for xylanase production were: 154 h of incubation time, pH 5.79 and 29.8 °C. Furthermore, two protein spots detected by two-dimensional gel electrophoresis showed molecular weights (26.05 and 27.70 kDa) and isoelectric points (6.18 and 9.20) corresponding to previously reported F. graminearum xylanases, Xyl A and Xyl B, respectively. Therefore, endophytic fungi of T. cacao can be an important source of xylanolytic activities when cultured on wheat bran, and xylanases with low cellulases found in strain Ec220 require further characterization as they show promise for possible industrial applications.
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The microbiome modulating potential of superheated steam (SHS) treatment of dietary fibres. INNOV FOOD SCI EMERG 2022. [DOI: 10.1016/j.ifset.2022.103082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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12
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Morgan T, Tavares MP, Ladeira-Ázar RI, de Oliveira Mendes TA, Guimarães VM. The lytic polysaccharide monooxigenases secreted by the fungus Chrysoporthe cubensis: Genomic analysis and impact on sugarcane bagasse saccharification. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2022. [DOI: 10.1016/j.bcab.2022.102318] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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Murlidhar Sonkar R, Savata Gade P, Bokade V, Mudliar SN, Bhatt P. Ozone assisted autohydrolysis of wheat bran enhances xylooligosaccharide production with low generation of inhibitor compounds: A comparative study. BIORESOURCE TECHNOLOGY 2021; 338:125559. [PMID: 34280853 DOI: 10.1016/j.biortech.2021.125559] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 07/08/2021] [Accepted: 07/09/2021] [Indexed: 06/13/2023]
Abstract
In the present study, ozone assisted autohydrolysis (OAAH) was evaluated for enhanced generation of xylooligosaccharide (XOS) from wheat bran. The total XOS yield with optimum ozone dose of 3% (OAAH-3) was found to be 8.9% (w/w biomass) at 110 °C in comparison to 7.96% at 170 °C by autohydrolysis (AH) alone. Although, there was no significant difference in oligomeric composition (DP 2-6), significant decrease in degradation products namely furfural (2.78-fold), HMF (3.15-fold), acrylamide (nil) and acetic acid (1.06-fold), was observed with OAAH-3 as a pretreatment option. There was 1-fold higher xylan to XOS conversion and OAAH-hydrolysate had higher DPPH radical scavenging activity than AH. PCA plots indicated clear enhancement in XOS production and lower generation of inhibitors with decrease in treatment temperature. Results of the study therefore suggest OAAH can be an effective pretreatment option that can further be integrated with downstream processing for concentration and purification of XOS.
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Affiliation(s)
- Rutuja Murlidhar Sonkar
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India; Microbiology and Fermentation Technology Department, CSIR-Central Food Technological Research Institute, Mysore 570020, India
| | - Pravin Savata Gade
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India; Microbiology and Fermentation Technology Department, CSIR-Central Food Technological Research Institute, Mysore 570020, India
| | - Vijay Bokade
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India; Catalysis Division, CSIR-National Chemical Laboratory, Pune 411008, India
| | - Sandeep N Mudliar
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India; Plant Cell Biotechnology Department, CSIR-Central Food Technological Research Institute, Mysore 570020, India
| | - Praveena Bhatt
- Academy of Scientific and Innovative Research, Ghaziabad 201002, India; Microbiology and Fermentation Technology Department, CSIR-Central Food Technological Research Institute, Mysore 570020, India.
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Coltelli MB, Bertolini A, Aliotta L, Gigante V, Vannozzi A, Lazzeri A. Chain Extension of Poly(Lactic Acid) (PLA)-Based Blends and Composites Containing Bran with Biobased Compounds for Controlling Their Processability and Recyclability. Polymers (Basel) 2021; 13:3050. [PMID: 34577949 PMCID: PMC8472942 DOI: 10.3390/polym13183050] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/18/2021] [Accepted: 08/28/2021] [Indexed: 11/16/2022] Open
Abstract
The present work focused on the research, design, and study of innovative chain extender systems of renewable origin for PLA-based biocomposites, reinforced with wheat bran as filler. The majority of employed chain extender compounds belongs to fossil world, affecting the biodegradability property which characterizes biopolymers. The aim of this work was thus to find promising biobased and sustainable alternatives to provide the same enhancements. According to this objective, epoxidized soybean oil (ESO) was chosen as principal component of the chain extender systems, together with a dicarboxylic acid, malic acid (MA), or succinic acid (SA). The reactivity of the modifier systems was previously studied through thermogravimetric analysis (TGA) and IR spectroscopy, to hypothesize the reaction mechanism in bran-filled blends. Hence, small-scale extrusion was carried out to investigate the effects of ESO/MA and ESO/SA on formulations of different composition (both pure PLA blends and composites). The variation of melt fluidity parameters was analyzed to define the optimized concentration of modifier systems. A comparison between the effects on blends of designed biobased systems and the action of fossil-based Joncryl was performed, to understand if the developed green solutions could represent competitive and efficient substitutes. The modified composites were characterized in terms of mechanical tests, degradation and thermal studies (TGA and DSC), and morphological analysis (SEM), to figure out their main features and to understand their potential in possible industrial applications.
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Affiliation(s)
- Maria-Beatrice Coltelli
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (A.B.); (L.A.); (V.G.); (A.L.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy;
| | - Alice Bertolini
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (A.B.); (L.A.); (V.G.); (A.L.)
| | - Laura Aliotta
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (A.B.); (L.A.); (V.G.); (A.L.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy;
| | - Vito Gigante
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (A.B.); (L.A.); (V.G.); (A.L.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy;
| | - Alessandro Vannozzi
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy;
| | - Andrea Lazzeri
- Department of Civil and Industrial Engineering, University of Pisa, 56122 Pisa, Italy; (A.B.); (L.A.); (V.G.); (A.L.)
- National Interuniversity Consortium of Materials Science and Technology (INSTM), 50121 Florence, Italy;
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15
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A Comprehensive Bioprocessing Approach to Foster Cheese Whey Valorization: On-Site β-Galactosidase Secretion for Lactose Hydrolysis and Sequential Bacterial Cellulose Production. FERMENTATION-BASEL 2021. [DOI: 10.3390/fermentation7030184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Cheese whey (CW) constitutes a dairy industry by-product, with considerable polluting impact, related mostly with lactose. Numerous bioprocessing approaches have been suggested for lactose utilization, however, full exploitation is hindered by strain specificity for lactose consumption, entailing a confined range of end-products. Thus, we developed a CW valorization process generating high added-value products (crude enzymes, nutrient supplements, biopolymers). First, the ability of Aspergillus awamori to secrete β-galactosidase was studied under several conditions during solid-state fermentation (SSF). Maximum enzyme activity (148 U/g) was obtained at 70% initial moisture content after three days. Crude enzymatic extracts were further implemented to hydrolyze CW lactose, assessing the effect of hydrolysis time, temperature and initial enzymatic activity. Complete lactose hydrolysis was obtained after 36 h, using 15 U/mL initial enzymatic activity. Subsequently, submerged fermentations were performed with the produced hydrolysates as onset feedstocks to produce bacterial cellulose (5.6–7 g/L). Our findings indicate a novel approach to valorize CW via the production of crude enzymes and lactose hydrolysis, aiming to unfold the output potential of intermediate product formation and end-product applications. Likewise, this study generated a bio-based material to be further introduced in novel food formulations, elaborating and conforming with the basic pillars of circular economy.
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16
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Morsy FM, Elbadry M, Elbahloul Y. Semidry acid hydrolysis of cellulose sustained by autoclaving for production of reducing sugars for bacterial biohydrogen generation from various cellulose feedstock. PeerJ 2021; 9:e11244. [PMID: 33976974 PMCID: PMC8061573 DOI: 10.7717/peerj.11244] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2020] [Accepted: 03/18/2021] [Indexed: 11/20/2022] Open
Abstract
Cellulosic biowastes are one of the cheapest and most abundant renewable organic materials on earth that can be, subsequent to hydrolysis, utilized as an organic carbon source for several fermentation biotechnologies. This study was devoted to explore a semidry acid hydrolysis of cellulose for decreasing the cost and ionic strength of the hydrolysate. For semidry acid hydrolysis, cellulose was just wetted with HCl (0 to 7 M) and subjected to autoclaving. The optimum molar concentration of HCl and period of autoclaving for semidry acid hydrolysis of cellulose were 6 M and 50 min respectively. Subsequent to the semidry acid hydrolysis with a minimum volume of 6 M HCl sustained by autoclaving, the hydrolysate was diluted with distilled water and neutralized with NaOH (0.5 M). The reducing sugars produced from the semidry acid hydrolysis of cellulose was further used for dark fermentation biohydrogen production by Escherichia coli as a representative of most hydrogen producing eubacteria which cannot utilize non-hydrolyzed cellulose. An isolated E. coli TFYM was used where this bacterium was morphologically and biochemically characterized and further identified by phylogenetic 16S rRNA encoding gene sequence analysis. The reducing sugars produced by semidry acid hydrolysis could be efficiently utilized by E. coli producing 0.4 mol H2 mol-1 hexose with a maximum rate of hydrogen gas production of 23.3 ml H2 h-1 L-1 and an estimated hydrogen yield of 20.5 (L H2 kg-1 dry biomass). The cheap cellulosic biowastes of wheat bran, sawdust and sugarcane bagasse could be hydrolyzed by semidry acid hydrolysis where the estimated hydrogen yield per kg of its dry biomass were 36, 18 and 32 (L H2 kg-1 dry biomass) respectively indicating a good feasibility of hydrogen production from reducing sugars prepared by semidry acid hydrolysis of these cellulosic biowastes. Semidry acid hydrolysis could also be effectively used for hydrolyzing non-cellulosic polysaccharides of dry cyanobacterial biomass. The described semidry acid hydrolysis of cellulosic biowastes in this study might be applicable not only for bacterial biohydrogen production but also for various hydrolyzed cellulose-based fermentation biotechnologies.
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Affiliation(s)
- Fatthy Mohamed Morsy
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Botany and Microbiology Department, Faculty of Science, Assiut University, Assiut, Assiut, Egypt
| | - Medhat Elbadry
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Agricultural Microbiology Department, Faculty of Agriculture, Fayoum University, Fayoum, Fayoum, Egypt
| | - Yasser Elbahloul
- Biology Department, Faculty of Science, Taibah University, Almadinah Almunawarah, Almadinah Almunawarah, Saudi Arabia.,Botany and Microbiology Department, Faculty of Science, Alexandria University, Alexandria, Alexandria, Egypt
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17
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Slaný O, Klempová T, Shapaval V, Zimmermann B, Kohler A, Čertík M. Animal Fat as a Substrate for Production of n-6 Fatty Acids by Fungal Solid-State Fermentation. Microorganisms 2021; 9:170. [PMID: 33466747 PMCID: PMC7830168 DOI: 10.3390/microorganisms9010170] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 01/07/2021] [Accepted: 01/11/2021] [Indexed: 12/03/2022] Open
Abstract
The method of solid-state fermentation (SSF) represents a powerful technology for the fortification of animal-based by-products. Oleaginous Zygomycetes fungi are efficient microbial cell factories used in SSF to valorize a wide range of waste and rest cereal materials. The application of this fermentation technique for utilization and biotransformation of animal-based materials represents a distinguished step in their treatment. In this study, for the first time, the strain Umbelopsis isabellina CCF2412 was used for the bioconversion of animal fat by-products to the fermented bioproducts enriched with n-6 polyunsaturated fatty acids, mainly γ-linolenic acid (GLA). Bioconversion of both cereals and the animal fat by-product resulted in the production of fermented bioproducts enriched with not just GLA (maximal yield was 6.4 mg GLA/g of fermented bioproduct), but also with high yields of glucosamine. Moreover, the fermentation on the cornmeal matrix led to obtaining bioproduct enriched with β-carotene. An increased amount of β-carotene content improved the antioxidant stability of obtained fermented bioproducts. Furthermore, the application of Fourier-transform infrared spectroscopy for rapid analysis and characterization of the biochemical profile of obtained SSF bioproducts was also studied.
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Affiliation(s)
- Ondrej Slaný
- Faculty of Chemical and Food Technology, Institute of Biotechnology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (T.K.); (M.Č.)
| | - Tatiana Klempová
- Faculty of Chemical and Food Technology, Institute of Biotechnology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (T.K.); (M.Č.)
| | - Volha Shapaval
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432 Ås, Norway; (V.S.); (B.Z.); (A.K.)
| | - Boris Zimmermann
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432 Ås, Norway; (V.S.); (B.Z.); (A.K.)
| | - Achim Kohler
- Faculty of Science and Technology, Norwegian University of Life Sciences, Postbox 5003, 1432 Ås, Norway; (V.S.); (B.Z.); (A.K.)
| | - Milan Čertík
- Faculty of Chemical and Food Technology, Institute of Biotechnology, Slovak University of Technology, Radlinského 9, 812 37 Bratislava, Slovakia; (T.K.); (M.Č.)
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18
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Modifying Effects of Physical Processes on Starch and Dietary Fiber Content of Foodstuffs. Processes (Basel) 2020. [DOI: 10.3390/pr9010017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Carbohydrates are one of the most important nutrients in human consumption. The digestible part of carbohydrates has a significant role in maintaining the energy status of the body and the non-digestible parts like dietary fibers have specific nutritional functions. One of the key issues of food processing is how to influence the technological and nutritional properties of carbohydrates to meet modern dietary requirements more effectively, considering particularly the trends in the behavior of people and food-related health issues. Physical processing methods have several advantages compared to the chemical methods, where chemical reagents, such as acids or enzymes, are used for the modification of components. Furthermore, in most cases, these is no need to apply them supplementarily in the technology, only a moderate modification of current technology can result in significant changes in dietary properties. This review summarizes the novel results about the nutritional and technological effects of physical food processing influencing the starch and dietary fiber content of plant-derived foodstuffs.
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19
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Sim E, Park E, Ma F, Baik BK, Fonseca JM, Delwiche SR. Sensory and physicochemical properties of whole wheat salted noodles under different preparations of bran. J Cereal Sci 2020. [DOI: 10.1016/j.jcs.2020.103112] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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20
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Biotransformation of Animal Fat-By Products into ARA-Enriched Fermented Bioproducts by Solid-State Fermentation of Mortierella alpina. J Fungi (Basel) 2020; 6:jof6040236. [PMID: 33096607 PMCID: PMC7712380 DOI: 10.3390/jof6040236] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Revised: 10/14/2020] [Accepted: 10/17/2020] [Indexed: 02/06/2023] Open
Abstract
Solid-state fermentation (SSF) is a powerful fermentation technology for valorizing rest materials and by-products of different origin. Oleaginous Zygomycetes fungi are often used in SSF as an effective cell factory able to valorize a wide range of hydrophilic and hydrophobic substrates and produce lipid-enriched bioproducts. In this study, for the first time, the strain Mortierella alpina was used in SSF for the bioconversion of animal fat by-products into high value fermented bioproducts enriched with arachidonic acid (ARA). Two cereals-based matrixes mixed with four different concentrations of animal fat by-product were evaluated for finding optimal conditions of a fat-based SSF. All obtained fermented bioproducts were found to be enriched with ARA. The highest substrate utilization (25.8%) was reached for cornmeal and it was almost double than for the respective wheat bran samples. Similarly, total fatty acid content in a fermented bioproduct prepared on cornmeal is almost four times higher in contrast to wheat bran-based bioproduct. Although in general the addition of an animal fat by-product caused a gradual cessation of ARA yield in the obtained fermented bioproduct, the content of ARA in fungal biomass was higher. Thus, M. alpina CCF2861 effectively transformed exogenous fatty acids from animal fat substrate to ARA. Maximum yield of 32.1 mg of ARA/g of bioproduct was reached when using cornmeal mixed with 5% (w/w) of an animal fat by-product as substrate. Furthermore, implementation of attenuated total reflectance Fourier transform infrared (ATR-FTIR) spectroscopy in characterization of obtained SSF bioproducts was successfully tested as an alternative tool for complex analysis, compared to traditional time-consuming methods.
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21
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Vidya C, Gnanesh Kumar B, Chinmayee C, Singh SA. Purification, characterization and specificity of a new GH family 35 galactosidase from Aspergillus awamori. Int J Biol Macromol 2020; 156:885-895. [DOI: 10.1016/j.ijbiomac.2020.04.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 03/10/2020] [Accepted: 04/05/2020] [Indexed: 10/24/2022]
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22
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Yilmaz-Turan S, Jiménez-Quero A, Moriana R, Arte E, Katina K, Vilaplana F. Cascade extraction of proteins and feruloylated arabinoxylans from wheat bran. Food Chem 2020; 333:127491. [PMID: 32659672 DOI: 10.1016/j.foodchem.2020.127491] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Revised: 05/28/2020] [Accepted: 07/02/2020] [Indexed: 12/18/2022]
Abstract
A cascade process for the sequential recovery of proteins and feruloylated arabinoxylan from wheat bran is proposed, involving a protein isolation step, enzymatic destarching and subcritical water extraction. The protein isolation step combining lactic acid fermentation and cold alkaline extraction reduced the recalcitrance of wheat bran, thus improving the total yields of the subsequent subcritical water extraction. The time evolution of subcritical water extraction of feruloylated arabinoxylan was compared at two temperatures (160 °C and 180 °C). Longer residence times enhanced the purity of target feruloylated arabinoxylans, whereas higher temperatures resulted in faster extraction at the expense of significant molar mass reduction. The radical scavenging activity of the extracted feruloylated arabinoxylans was preserved after the initial protein isolation step. This study opens new possibilities for the cascade valorization of wheat bran into enriched protein and non-starch polysaccharide fractions, which show potential to be used as functional food ingredients.
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Affiliation(s)
- Secil Yilmaz-Turan
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Amparo Jiménez-Quero
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden
| | - Rosana Moriana
- Division of Polymeric Materials, Department of Fibre and Polymer Technology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden; Department of Molecular Sciences, SLU-Swedish University of Agricultural Sciences, Almas Allé 5, Uppsala, Sweden
| | - Elisa Arte
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, FI-00014, Finland
| | - Kati Katina
- Department of Food and Nutrition, University of Helsinki, P.O. Box 66, FI-00014, Finland
| | - Francisco Vilaplana
- Division of Glycoscience, Department of Chemistry, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH Royal Institute of Technology, Stockholm, Sweden.
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23
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Donsì F, Velikov KP. Mechanical cell disruption of mustard bran suspensions for improved dispersion properties and protein release. Food Funct 2020; 11:6273-6284. [PMID: 32602518 DOI: 10.1039/d0fo00852d] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
Mustard bran, a by-product of mustard production, is still rich in valuable compounds. The high-pressure homogenization treatment was tested as a mechanical cell disruption (MCD) technique to unlock valuable intracellular compounds. An aqueous suspension of mustard bran was treated by shear mixing, followed by high-pressure homogenization at different pressure levels (50-150 MPa) and number of passes (1-10), and using different homogenizing systems. The moderate-intensity treatment (up to 100 MPa and 3 passes) can deliver significant changes in the mustard bran suspension, inducing (a) a more homogeneous and smooth appearance due to the disruption of individual cells, (b) a better structuring ability in the suspension, through the increase in viscosity and storage and loss moduli G' and G'', as well as (c) a remarkable enhancement of protein release, up to 72% of total proteins. The controlling factor in the extent of MCD was found to be the specific energy transferred to the mustard bran suspensions, whereas no significant differences were recorded when varying the homogenization system. The MCD process of mustard bran, based on its physical treatments using only water as a suspension medium, can be regarded as a safe, clean and environmentally friendly technology platform, which contributes to reaching the zero-waste concept by transforming agro-food by-products into value-added ingredients, with enhanced functionality and bioactive content.
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Affiliation(s)
- Francesco Donsì
- Department of Industrial Engineering, University of Salerno, via Giovanni Paolo II 132, 84084, Fisciano, SA, Italy.
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24
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Gold M, Egger J, Scheidegger A, Zurbrügg C, Bruno D, Bonelli M, Tettamanti G, Casartelli M, Schmitt E, Kerkaert B, Smet JD, Campenhout LV, Mathys A. Estimating black soldier fly larvae biowaste conversion performance by simulation of midgut digestion. WASTE MANAGEMENT (NEW YORK, N.Y.) 2020; 112:40-51. [PMID: 32497900 DOI: 10.1016/j.wasman.2020.05.026] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Revised: 05/15/2020] [Accepted: 05/16/2020] [Indexed: 06/11/2023]
Abstract
Black soldier fly larvae treatment is an emerging technology for the conversion of biowaste into potentially more sustainable and marketable high-value products, according to circular economy principles. Unknown or variable performance for different biowastes is currently one challenge that prohibits the global technology up-scaling. This study describes simulated midgut digestion for black soldier fly larvae to estimate biowaste conversion performance. Before simulation, the unknown biowaste residence time in the three midgut regions was determined on three diets varying in protein and non-fiber carbohydrate content. For the static in vitro model, diet residence times of 15 min, 45 min, and 90 min were used for the anterior, middle, and posterior midgut region, respectively. The model was validated by comparing the ranking of diets based on in vitro digestion products to the ranking found in in vivo feeding experiments. Four artificial diets and five biowastes were digested using the model, and diet digestibility and supernatant nutrient contents were determined. This approach was able to distinguish broadly the worst and best performing rearing diets. However, for some of the diets, the performance estimated based on in vitro results did not match with the results of the feeding experiments. Future studies should try to establish a stronger correlation by considering fly larvae nutrient requirements, hemicellulose digestion, and the diet/gut microbiota. In vitro digestion models could be a powerful tool for academia and industry to increase conversion performance of biowastes with black soldier fly larvae.
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Affiliation(s)
- Moritz Gold
- ETH Zurich: Swiss Federal Institute of Technology Zurich, Institute of Food, Nutrition and Health, Sustainable Food Processing Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; Eawag: Swiss Federal Institute of Aquatic Science and Technology, Department Sanitation, Water and Solid Waste for Development (Sandec), Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Julia Egger
- ETH Zurich: Swiss Federal Institute of Technology Zurich, Institute of Food, Nutrition and Health, Sustainable Food Processing Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland; Eawag: Swiss Federal Institute of Aquatic Science and Technology, Department Sanitation, Water and Solid Waste for Development (Sandec), Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Andreas Scheidegger
- Eawag: Swiss Federal Institute of Aquatic Science and Technology, Department Systems Analysis, Integrated Assessment and Modelling, Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Christian Zurbrügg
- Eawag: Swiss Federal Institute of Aquatic Science and Technology, Department Sanitation, Water and Solid Waste for Development (Sandec), Überlandstrasse 133, 8600 Dübendorf, Switzerland
| | - Daniele Bruno
- University of Insubria, Department of Biotechnology and Life Sciences, via J.H. Dunant 3, 21100, Varese, Italy
| | - Marco Bonelli
- University of Milan, Department of Biosciences, via G. Celoria 26, 20133, Milan, Italy
| | - Gianluca Tettamanti
- University of Insubria, Department of Biotechnology and Life Sciences, via J.H. Dunant 3, 21100, Varese, Italy; Interuniversity Center for Studies on Bioinspired Agro-environmental Technology (BAT Center), University of Napoli Federico II, via Università 100, 80055 Portici, Italy
| | - Morena Casartelli
- University of Milan, Department of Biosciences, via G. Celoria 26, 20133, Milan, Italy; Interuniversity Center for Studies on Bioinspired Agro-environmental Technology (BAT Center), University of Napoli Federico II, via Università 100, 80055 Portici, Italy
| | - Eric Schmitt
- Protix B.V., Industriestraat 3, 5107 NC, Dongen, the Netherlands
| | - Ben Kerkaert
- KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Campus Geel, Kleinhoefstraat 4, 2440 Geel, Belgium
| | - Jeroen De Smet
- KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Campus Geel, Kleinhoefstraat 4, 2440 Geel, Belgium
| | - Leen Van Campenhout
- KU Leuven, Department of Microbial and Molecular Systems (M2S), Lab4Food, Campus Geel, Kleinhoefstraat 4, 2440 Geel, Belgium
| | - Alexander Mathys
- ETH Zurich: Swiss Federal Institute of Technology Zurich, Institute of Food, Nutrition and Health, Sustainable Food Processing Laboratory, Schmelzbergstrasse 9, 8092 Zurich, Switzerland.
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25
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Hu L, Liu R, Wu T, Sui W, Zhang M. Structural Properties of Homogeneous Polysaccharide Fraction Released from Wheat Germ by Hydrothermal Treatment. Carbohydr Polym 2020; 240:116238. [DOI: 10.1016/j.carbpol.2020.116238] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 03/23/2020] [Accepted: 03/29/2020] [Indexed: 02/08/2023]
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26
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Sardari RRR, Sutiono S, Azeem HA, Galbe M, Larsson M, Turner C, Nordberg Karlsson E. Evaluation of Sequential Processing for the Extraction of Starch, Lipids, and Proteins From Wheat Bran. Front Bioeng Biotechnol 2019; 7:413. [PMID: 31921817 PMCID: PMC6923635 DOI: 10.3389/fbioe.2019.00413] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2019] [Accepted: 11/28/2019] [Indexed: 01/07/2023] Open
Abstract
In line with the need to better utilize agricultural resources, and valorize underutilized fractions, we have developed protocols to increase the use of wheat bran, to improve utilization of this resource to additional products. Here, we report sequential processing for extraction of starch, lipids, and proteins from wheat brans with two different particle sizes leaving a rest-material enriched in dietary fiber. Mild water-based extraction of starch resulted in maximum 81.7 ± 0.67% yield. Supercritical fluid extraction of lipids by CO2 resulted in 55.2 ± 2.4% yield. This was lower than the corresponding yield using Soxhlet extraction, which was used as a reference method, but allowed a continued extraction sequence without denaturation of the proteins remaining in the raw-material. Alkaline extraction of non-degraded proteins resulted in a yield corresponding to one third of the total protein in the material, which was improved to reach 62 ± 8% by a combination of wheat bran enzymes activation followed by Osborne fractionation. The remaining proteins were extracted in degraded form, resulting in maximum 91.6 ± 1.6% yield of the total proteins content. The remaining material in both fine and coarse bran had a fiber content that on average corresponded to 73 ± 3%. The current work allows separation of several compounds, which is enabling valorization of the bran raw-material into several products.
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Affiliation(s)
- Roya R R Sardari
- Division of Biotechnology, Department of Chemistry, Lund University, Lund, Sweden
| | - Samuel Sutiono
- Division of Biotechnology, Department of Chemistry, Lund University, Lund, Sweden.,Chair of Chemistry of Biogenic Resources, Technical University of Munich, Munich, Germany
| | - Hafiz Abdul Azeem
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Lund, Sweden
| | - Mats Galbe
- Department of Chemical Engineering, Lund University, Lund, Sweden
| | | | - Charlotta Turner
- Centre for Analysis and Synthesis, Department of Chemistry, Lund University, Lund, Sweden
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Utilization of Wheat Bran Acid Hydrolysate by Rhodotorula mucilaginosa Y-MG1 for Microbial Lipid Production as Feedstock for Biodiesel Synthesis. BIOMED RESEARCH INTERNATIONAL 2019; 2019:3213521. [PMID: 31915687 PMCID: PMC6930767 DOI: 10.1155/2019/3213521] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/10/2019] [Revised: 07/08/2019] [Accepted: 11/14/2019] [Indexed: 11/17/2022]
Abstract
The lignocellulosic hydrolysate was used as the fermentation feedstock of Rhodotorula mucilaginosa Y-MG1 for the production of microbial lipids as the potential raw material for biodiesel synthesis. On synthetic media and under nitrogen-limiting condition, the Y-MG1 strain produces 2.13 g/L of lipids corresponding to 32.7% of lipid content. This strain was able to assimilate a wide range of substrates, especially C5 and C6 sugars as well as glycerol and sucrose. Fatty acid composition shows a divergence depending on the nature of used carbon source with a predominance of oleic acid or linoleic acid. An effective hydrolysis process, based on diluted acid treatment, was established for providing the maximum of fermentable sugars from different characterized lignocellulosic wastes. The highest yield of reducing sugars (56.6 g/L) could be achieved when wheat bran was used as the raw material. Hydrolysate detoxification step was not required in this study since the Y-MG1 strain was shown to grow and produce lipids in the presence of inhibitors and without the addition of external elements. Operating by controlled fed-batch fermentation yielded a dry biomass and oil yield of up to 11 g/L and 38.7% (w/w), respectively. The relative fatty acid composition showed the presence of increased levels of monounsaturated (66.8%) and saturated (23.4%) fatty acids in lipids of Y-MG1 grown on wheat bran. The predictive determination of biodiesel properties suggests that this oil may effectively be used for biodiesel production.
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Verma N, Kumar V. Application of Box–Behnken design for the optimization of cellulase production under solid-state fermentation. SN APPLIED SCIENCES 2019. [DOI: 10.1007/s42452-019-1779-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Li X, Zheng Y. Biotransformation of lignin: Mechanisms, applications and future work. Biotechnol Prog 2019; 36:e2922. [PMID: 31587530 DOI: 10.1002/btpr.2922] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Revised: 09/19/2019] [Accepted: 09/24/2019] [Indexed: 01/04/2023]
Abstract
As one of the most abundant polymers in biosphere, lignin has attracted extensive attention as a kind of promising feedstock for biofuel and bio-based products. However, the utilization of lignin presents various challenges in that its complex composition and structure and high resistance to degradation. Lignin conversion through biological platform harnesses the catalytic power of microorganisms to decompose complex lignin molecules and obtain value-added products through biosynthesis. Given the heterogeneity of lignin, various microbial metabolic pathways are involved in lignin bioconversion processes, which has been characterized in extensive research work. With different types of lignin substrates (e.g., model compounds, technical lignin, and lignocellulosic biomass), several bacterial and fungal species have been proved to own lignin-degrading abilities and accumulate microbial products (e.g., lipid and polyhydroxyalkanoates), while the lignin conversion efficiencies are still relatively low. Genetic and metabolic strategies have been developed to enhance lignin biodegradation by reprogramming microbial metabolism, and diverse products, such as vanillin and dicarboxylic acids were also produced from lignin. This article aims at presenting a comprehensive review on lignin bioconversion including lignin degradation mechanisms, metabolic pathways, and applications for the production of value-added bioproducts. Advanced techniques on genetic and metabolic engineering are also covered in the recent development of biological platforms for lignin utilization. To conclude this article, the existing challenges for efficient lignin bioprocessing are analyzed and possible directions for future work are proposed.
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Affiliation(s)
- Xiang Li
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas
| | - Yi Zheng
- Department of Grain Science and Industry, Kansas State University, Manhattan, Kansas
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Effect of Cellulose Nanocrystals from Different Lignocellulosic Residues to Chitosan/Glycerol Films. Polymers (Basel) 2019; 11:polym11040658. [PMID: 30974908 PMCID: PMC6523815 DOI: 10.3390/polym11040658] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Revised: 03/30/2019] [Accepted: 04/08/2019] [Indexed: 12/23/2022] Open
Abstract
Interest in nanocellulose obtained from natural resources has grown, mainly due to the characteristics that these materials provide when incorporated in biodegradable films as an alternative for the improvement of the properties of nanocomposites. The main purpose of this work was to investigate the effect of the incorporation of nanocellulose obtained from different fibers (corncob, corn husk, coconut shell, and wheat bran) into the chitosan/glycerol films. The nanocellulose were obtained through acid hydrolysis. The properties of the different nanobiocomposites were comparatively evaluated, including their barrier and mechanical properties. The nanocrystals obtained for coconut shell (CS), corn husk (CH), and corncob (CC) presented a length/diameter ratio of 40.18, 40.86, and 32.19, respectively. Wheat bran (WB) was not considered an interesting source of nanocrystals, which may be justified due to the low percentage of cellulose. Significant differences were observed in the properties of the films studied. The water activity varied from 0.601 (WB Film) to 0.658 (CH Film) and the moisture content from 15.13 (CS Film) to 20.86 (WB Film). The highest values for tensile strength were presented for CC (11.43 MPa) and CS (11.38 MPa) films, and this propriety was significantly increased by nanocellulose addition. The results showed that the source of the nanocrystal determined the properties of the chitosan/glycerol films.
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De Paepe K, Verspreet J, Rezaei MN, Martinez SH, Meysman F, Van de Walle D, Dewettinck K, Courtin CM, Van de Wiele T. Modification of wheat bran particle size and tissue composition affects colonisation and metabolism by human faecal microbiota. Food Funct 2019; 10:379-396. [DOI: 10.1039/c8fo01272e] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Six wheat bran products, varying in particle size, histological and chemical composition differentially affected thein vitrofermentation activity and composition of human faecal microbiota of ten individuals.
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Affiliation(s)
- Kim De Paepe
- Center for Microbial Ecology and Technology (CMET)
- Department of Biotechnology
- Faculty of Bioscience Engineering
- Ghent University
- Ghent
| | - Joran Verspreet
- Laboratory of Food Chemistry and Biochemistry
- Leuven Food Science and Nutrition Research Centre (LFoRCe)
- Faculty of Bioscience Engineering
- KU Leuven
- Heverlee
| | - Mohammad Naser Rezaei
- Laboratory of Food Chemistry and Biochemistry
- Leuven Food Science and Nutrition Research Centre (LFoRCe)
- Faculty of Bioscience Engineering
- KU Leuven
- Heverlee
| | - Silvia Hidalgo Martinez
- Ecosystem Management Research Group (ECOBE)
- Department of Biology
- Faculty of Sciences
- Universiteit Antwerpen
- Antwerp
| | - Filip Meysman
- Ecosystem Management Research Group (ECOBE)
- Department of Biology
- Faculty of Sciences
- Universiteit Antwerpen
- Antwerp
| | - Davy Van de Walle
- Laboratory of Food Technology and Engineering (FTE)
- Department of Food technology
- Safety and Health
- Faculty of Bioscience Engineering
- Ghent University
| | - Koen Dewettinck
- Laboratory of Food Technology and Engineering (FTE)
- Department of Food technology
- Safety and Health
- Faculty of Bioscience Engineering
- Ghent University
| | - Christophe M. Courtin
- Laboratory of Food Chemistry and Biochemistry
- Leuven Food Science and Nutrition Research Centre (LFoRCe)
- Faculty of Bioscience Engineering
- KU Leuven
- Heverlee
| | - Tom Van de Wiele
- Center for Microbial Ecology and Technology (CMET)
- Department of Biotechnology
- Faculty of Bioscience Engineering
- Ghent University
- Ghent
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Korcz E, Kerényi Z, Varga L. Dietary fibers, prebiotics, and exopolysaccharides produced by lactic acid bacteria: potential health benefits with special regard to cholesterol-lowering effects. Food Funct 2018; 9:3057-3068. [PMID: 29790546 DOI: 10.1039/c8fo00118a] [Citation(s) in RCA: 96] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The gastrointestinal (GIT) microbiota, which plays a crucial role in human health, is influenced by a number of factors including diet. Consumption of specific dietary ingredients, such as dietary fibers and prebiotics, is an avenue by which the microbiota can be positively modulated. These substances may also reduce serum cholesterol levels through various mechanisms. Interest has increased in methods of reducing blood cholesterol level, because dyslipidemia is recognized as a contributory risk factor for the development of cardiovascular diseases. Several drugs have been developed for the treatment of hypercholesterolemia; however, undesirable side effects were observed, which have caused concerns about their long-term therapeutic use. Alternatively, many nonpharmacological approaches were tested to reduce elevated serum cholesterol levels. Dietary fibers and prebiotics have particularly beneficial effects on the GIT microbiome, and can also reduce serum cholesterol level through various mechanisms. Lactic acid bacteria (LAB) are potentially capable of synthesizing different polysaccharides, e.g. exopolysaccharides (EPS), which may play a role as prebiotics. LAB-based EPS have the potential to affect the gastrointestinal microbiome and reduce cholesterol. However, as dietary fibers comprise a complex group of substances with remarkably diverse structures, properties, and impacts, EPS also differ greatly and show a multitude of beneficial health effects. This review discusses the current knowledge related to the effects of dietary fibers and prebiotics on the human GIT microbiome, the prebiotic properties of EPS produced by LAB, and the health-promoting benefits of these polymers with special emphasis being given to cholesterol lowering.
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Affiliation(s)
- E Korcz
- Department of Food Science, Faculty of Agricultural and Food Sciences, Széchenyi István University, Mosonmagyaróvár, Hungary.
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Reisinger M, Tirpanalan Ö, Pruksasri S, Kneifel W, Novalin S. Disintegration of the agricultural by-product wheat bran under subcritical conditions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2018; 98:4296-4303. [PMID: 29427290 DOI: 10.1002/jsfa.8952] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Revised: 01/23/2018] [Accepted: 02/04/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND The disintegration of destarched wheat bran in water and sulfuric acid (pH 3) under subcritical conditions (275-300 °C) and at short reaction times (1-4 min) was investigated. A cascade process comprising a stepwise separation of the liquid was applied to reduce the formation of undesired degradation products. RESULTS The highest degree of biomass disintegration (67% dry mass solubilization) was achieved by application of a cascade process at 275 °C (pH 3). Regarding the dissolution of carbohydrates (monomeric and oligomeric form), the total glucose yields remained below 60%, while the total xylose and arabinose yields were about 76% and 67%. Approximately 74% of the protein and 95% of the mineral fraction could be extracted. The application of the cascade process enabled a substantially reduced formation of degradation products. CONCLUSION When operating hydrothermally and subcritically in order to avoid some problematic aspects of a biorefinery, an extensive disintegration and monomerization of wheat bran and its constituents remains difficult even under the tested conditions (300 °C, pH 3). However, the applied cascade process proved to be useful to increase the yields and to substantially reduce the formation of undesired degradation products. Despite this fact, increased water consumption has to be conceded. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Michael Reisinger
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Özge Tirpanalan
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Suwattana Pruksasri
- Department of Biotechnology, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom, Thailand
| | - Wolfgang Kneifel
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
| | - Senad Novalin
- Department of Food Science and Technology, University of Natural Resources and Life Sciences, Vienna, Austria
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Quantitative multiplexed profiling of Penicillium funiculosum secretome grown on polymeric cellulase inducers and glucose. J Proteomics 2018; 179:150-160. [PMID: 29597011 DOI: 10.1016/j.jprot.2018.03.025] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2017] [Revised: 02/16/2018] [Accepted: 03/20/2018] [Indexed: 11/22/2022]
Abstract
Filamentous fungi respond to the need to secure utilisable carbon from their growth milieu by secreting unique extracellular proteins depending upon the types of polymeric substrates. We have here profiled the variations in the secretome pattern of a non-model hypercellulolytic fungus - Penicillium funiculosum, grown in minimal media containing four different polymeric cellulase inducers, i.e., Avicel, wheat bran, ammonium-pretreated wheat straw and Avicel & wheat bran, and glucose over its early and late log phases of growth. Of the 137 secreted proteins validated at 1% FDR, we identified the quantified proteins in three clusters as early, persistently or lately expressed. The type of carbon substrate present in the culture media significantly affected the levels of cellulolytic enzymes expression by the fungus. The top abundant proteins quantified in the secretome for Avicel and wheat bran were cellobiohydrolaseI [GH7-CBM1], cellobiohydrolaseII [GH6-CBM1], β-glucosidase [GH3], arabinofuranosidase [GH51] and β-xylosidase [GH3], with bicupin being highest in case of wheat straw. Our results further suggested that the fungus secreted the extracellular proteins in waves, such that the initial responders act to hydrolyse the composite substrates in the culture environment before the second wave of proteins which tend to be more tailored to the specific substrate in the cultivating media. BIOLOGICAL SIGNIFICANCE In this article, we have comprehensively examined the dynamics of the secretome of a non-model hypercellulolytic fungus produced in response to model and composite cellulase inducers. Our study has provided additional insights into how the fungus enzyme machinery responds to the presence of different polymeric cellulase inducers over the two different growth phases (early growth and late growth phase). The comprehensive typing and quantification of the different proteins present in the secretomes of the cellulolytic fungal strains in response to diverse nutrient sources hold many prospects in understanding the fungus unique enzyme machinery and dynamics for the downstream biotechnological applications.
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Liu MQ, Huo WK, Xu X, Weng XY. Recombinant Bacillus amyloliquefaciens xylanase A expressed in Pichia pastoris and generation of xylooligosaccharides from xylans and wheat bran. Int J Biol Macromol 2017; 105:656-663. [DOI: 10.1016/j.ijbiomac.2017.07.073] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2017] [Revised: 07/08/2017] [Accepted: 07/12/2017] [Indexed: 10/19/2022]
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Rao X, Shen H, Pattathil S, Hahn MG, Gelineo-Albersheim I, Mohnen D, Pu Y, Ragauskas AJ, Chen X, Chen F, Dixon RA. Dynamic changes in transcriptome and cell wall composition underlying brassinosteroid-mediated lignification of switchgrass suspension cells. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:266. [PMID: 29213317 PMCID: PMC5707915 DOI: 10.1186/s13068-017-0954-2] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Accepted: 11/02/2017] [Indexed: 05/21/2023]
Abstract
BACKGROUND Plant cell walls contribute the majority of plant biomass that can be used to produce transportation fuels. However, the complexity and variability in composition and structure of cell walls, particularly the presence of lignin, negatively impacts their deconstruction for bioenergy. Metabolic and genetic changes associated with secondary wall development in the biofuel crop switchgrass (Panicum virgatum) have yet to be reported. RESULTS Our previous studies have established a cell suspension system for switchgrass, in which cell wall lignification can be induced by application of brassinolide (BL). We have now collected cell wall composition and microarray-based transcriptome profiles for BL-induced and non-induced suspension cultures to provide an overview of the dynamic changes in transcriptional reprogramming during BL-induced cell wall modification. From this analysis, we have identified changes in candidate genes involved in cell wall precursor synthesis, cellulose, hemicellulose, and pectin formation and ester-linkage generation. We have also identified a large number of transcription factors with expression correlated with lignin biosynthesis genes, among which are candidates for control of syringyl (S) lignin accumulation. CONCLUSION Together, this work provides an overview of the dynamic compositional changes during brassinosteroid-induced cell wall remodeling, and identifies candidate genes for future plant genetic engineering to overcome cell wall recalcitrance.
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Affiliation(s)
- Xiaolan Rao
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX USA
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
| | - Hui Shen
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX USA
- Present Address: Marker-assisted Breeding and Traits, Chromatin Inc, Lubbock, TX 79404 USA
| | - Sivakumar Pattathil
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd, Athens, GA 30602 USA
- Present Address: Mascoma LLC (Lallemand Company), 67 Etna Road, Lebanon, NH 03766 USA
| | - Michael G. Hahn
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd, Athens, GA 30602 USA
| | - Ivana Gelineo-Albersheim
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd, Athens, GA 30602 USA
| | - Debra Mohnen
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
- Complex Carbohydrate Research Center, The University of Georgia, 315 Riverbend Rd, Athens, GA 30602 USA
| | - Yunqiao Pu
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
| | - Arthur J. Ragauskas
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
- Department of Chemical and Biomolecular Engineering, University of Tennessee, Knoxville, TN USA
| | - Xin Chen
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
- Present Address: Center for Applied Mathematics, Tianjin University, Tianjin, 300072 China
| | - Fang Chen
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX USA
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
| | - Richard A. Dixon
- BioDiscovery Institute and Department of Biological Sciences, University of North Texas, Denton, TX USA
- BioEnergy Science Center (BESC), Oak Ridge National Laboratory (ORNL), Oak Ridge, TN USA
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Aktas-Akyildiz E, Mattila O, Sozer N, Poutanen K, Koksel H, Nordlund E. Effect of steam explosion on enzymatic hydrolysis and baking quality of wheat bran. J Cereal Sci 2017. [DOI: 10.1016/j.jcs.2017.06.011] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Lin C, Shen Z, Zhu T, Qin W. Bacterial Xylanase in Pseudomonas boreopolis LUQ1 is Highly Induced by Xylose. CANADIAN JOURNAL OF BIOTECHNOLOGY 2017. [DOI: 10.24870/cjb.2017-000112] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
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Processing, Valorization and Application of Bio-Waste Derived Compounds from Potato, Tomato, Olive and Cereals: A Review. SUSTAINABILITY 2017. [DOI: 10.3390/su9081492] [Citation(s) in RCA: 68] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Ryden P, Efthymiou MN, Tindyebwa TAM, Elliston A, Wilson DR, Waldron KW, Malakar PK. Bioethanol production from spent mushroom compost derived from chaff of millet and sorghum. BIOTECHNOLOGY FOR BIOFUELS 2017; 10:195. [PMID: 28785311 PMCID: PMC5545022 DOI: 10.1186/s13068-017-0880-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2017] [Accepted: 07/26/2017] [Indexed: 06/07/2023]
Abstract
BACKGROUND In Uganda, the chaff remaining from threshed panicles of millet and sorghum is a low value, lignocellulose-rich agricultural by-product. Currently, it is used as a substrate for the cultivation of edible Oyster mushrooms (Pleurotus ostreatus). The aim of this study was to assess the potential to exploit the residual post-harvest compost for saccharification and fermentation to produce ethanol. RESULTS Sorghum and millet chaff-derived spent oyster mushroom composts minus large mycelium particles were assessed at small-scale and low substrate concentrations (5% w/v) for optimal severity hydrothermal pre-treatment, enzyme loading and fermentation with robust yeasts to produce ethanol. These conditions were then used as a basis for larger scale assessments with high substrate concentrations (30% w/v). Millet-based compost had a low cellulose content and, at a high substrate concentration, did not liquefy effectively. The ethanol yield was 63.9 g/kg dry matter (DM) of original material with a low concentration (19.6 g/L). Compost derived from sorghum chaff had a higher cellulose content and could be liquefied at high substrate concentration (30% w/v). This enabled selected furfural-resistant yeasts to produce ethanol at up to 186.9 g/kg DM of original material and a concentration of 45.8 g/L. CONCLUSIONS Spent mushroom compost derived from sorghum chaff has the potential to be an industrially useful substrate for producing second-generation bioethanol. This might be improved further through fractionation and exploitation of hemicellulosic moieties, and possibly the exploitation of the mycelium-containing final residue for animal feed. However, spent compost derived from millet does not provide a suitably high concentration of ethanol to make it industrially attractive. Further research on the difficulty in quantitatively saccharifying cellulose from composted millet chaff and other similar substrates such as rice husk is required.
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Affiliation(s)
- Peter Ryden
- The Biorefinery Centre, Quadram Institute Bioscience, Colney, Norwich Research Park, Norwich, NR4 7UA UK
| | - Maria-Nefeli Efthymiou
- The Biorefinery Centre, Quadram Institute Bioscience, Colney, Norwich Research Park, Norwich, NR4 7UA UK
| | - Teddy A. M. Tindyebwa
- School of Biological Sciences, College of Natural Sciences, Makerere University, P.O. Box 7062, Kampala, Uganda
| | - Adam Elliston
- The Biorefinery Centre, Quadram Institute Bioscience, Colney, Norwich Research Park, Norwich, NR4 7UA UK
| | - David R. Wilson
- The Biorefinery Centre, Quadram Institute Bioscience, Colney, Norwich Research Park, Norwich, NR4 7UA UK
| | - Keith W. Waldron
- The Biorefinery Centre, Quadram Institute Bioscience, Colney, Norwich Research Park, Norwich, NR4 7UA UK
| | - Pradeep K. Malakar
- The Biorefinery Centre, Quadram Institute Bioscience, Colney, Norwich Research Park, Norwich, NR4 7UA UK
- College of Food Science and Technology, Shanghai Ocean University, 999 Hu Cheng Huan Road, Shanghai, 201306 People’s Republic of China
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Salim AA, Grbavčić S, Šekuljica N, Stefanović A, Jakovetić Tanasković S, Luković N, Knežević-Jugović Z. Production of enzymes by a newly isolated Bacillus sp. TMF-1 in solid state fermentation on agricultural by-products: The evaluation of substrate pretreatment methods. BIORESOURCE TECHNOLOGY 2017; 228:193-200. [PMID: 28063362 DOI: 10.1016/j.biortech.2016.12.081] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2016] [Revised: 12/13/2016] [Accepted: 12/22/2016] [Indexed: 06/06/2023]
Abstract
Study on potential of different agro-industrial waste residues for supporting the growth of newly isolated Bacillus sp. TMF-1 strain under solid-state fermentation (SSF) was conducted aiming to produce several industrially valuable enzymes. Since the feasibility of the initial study was confirmed, further objectives included evaluation of several pretreatments of the studied agricultural by-products (soybean meal, sunflower meal, maize bran, maize pericarp, olive oil cake and wheat bran) on the microbial productivity as means of enhancing the yields of produced proteases, α-amylases, cellulases and pectinases. Among acid/alkaline treatment, ultrasound and microwave assisted methods, chemical treatments superiorly affected most of the studied substrates. Highest yields of produced proteases (50.5IUg-1) and α-amylases (50.75IUg-1) were achieved on alkaline treated corn pericarp. Alkaline treatment also promoted the secretion of cellulases on maize bran (1.19IUg-1). Highest yield of pectinases was obtained on untreated soybean meal (64.90IUg-1).
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Affiliation(s)
- Abdalla Ali Salim
- Faculty of Technology and Metallurgy, University of Belgrade, Department of Biochemical Engineering and Biotechnology, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Sanja Grbavčić
- Innovation Center of Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia.
| | - Nataša Šekuljica
- Innovation Center of Faculty of Technology and Metallurgy, University of Belgrade, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Andrea Stefanović
- Faculty of Technology and Metallurgy, University of Belgrade, Department of Biochemical Engineering and Biotechnology, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Sonja Jakovetić Tanasković
- Faculty of Technology and Metallurgy, University of Belgrade, Department of Biochemical Engineering and Biotechnology, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Nevena Luković
- Faculty of Technology and Metallurgy, University of Belgrade, Department of Biochemical Engineering and Biotechnology, Karnegijeva 4, 11000 Belgrade, Serbia
| | - Zorica Knežević-Jugović
- Faculty of Technology and Metallurgy, University of Belgrade, Department of Biochemical Engineering and Biotechnology, Karnegijeva 4, 11000 Belgrade, Serbia
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Wood IP, Cook NM, Wilson DR, Ryden P, Robertson JA, Waldron KW. Ethanol from a biorefinery waste stream: Saccharification of amylase, protease and xylanase treated wheat bran. Food Chem 2016; 198:125-31. [DOI: 10.1016/j.foodchem.2015.09.108] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2015] [Revised: 09/04/2015] [Accepted: 09/29/2015] [Indexed: 11/30/2022]
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Wu M, Yan ZY, Zhang XM, Xu F, Sun RC. Integration of mild acid hydrolysis in γ-valerolactone/water system for enhancement of enzymatic saccharification from cotton stalk. BIORESOURCE TECHNOLOGY 2016; 200:23-28. [PMID: 26476160 DOI: 10.1016/j.biortech.2015.09.111] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 09/28/2015] [Accepted: 09/29/2015] [Indexed: 06/05/2023]
Abstract
In this study, mild acid hydrolysis using γ-valerolactone (GVL)/water system integrated with enzymatic hydrolysis was carried out for the enhancement of enzymatic saccharification efficiency. The quantitative analysis of soluble carbohydrates and structural characterizations of solid residues were conducted. Results showed that the soluble carbohydrates in the water-phase were mainly composed of monomers and oligomers from xylose and glucose, while the contents of which were depended on the ratio of GVL to water. Moreover, the inhibitors were hardly detected due to the moderate pretreatment severity. Compared with the untreated feedstock, the yields of enzymatic hydrolysis from pretreated samples increased by two-fold with the mixture of 80/20 GVL/H2O. Combined with the amount of glucose (14.6%) dissolved in the water-phase, over 92.6% of glucose in cotton stalk was released and recovered. Based on the comprehensive analysis, treatment with GVL/H2O system provided us a more effective approach for sugar production from biomass.
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Affiliation(s)
- Miao Wu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Zhong Ya Yan
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Xue Ming Zhang
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China.
| | - Feng Xu
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China
| | - Run Cang Sun
- Beijing Key Laboratory of Lignocellulosic Chemistry, Beijing Forestry University, Beijing 100083, China; State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510640, China
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Yu Q, Zhuang X, Yuan Z, Kong X, Qi W, Wang W, Wang Q, Tan X. Influence of lignin level on release of hemicellulose-derived sugars in liquid hot water. Int J Biol Macromol 2015; 82:967-72. [PMID: 26484600 DOI: 10.1016/j.ijbiomac.2015.10.045] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Revised: 10/12/2015] [Accepted: 10/14/2015] [Indexed: 11/26/2022]
Abstract
Lignin layers surrounding hemicelluloses and cellulose in the plant cell walls protect them from deconstruction. This recalcitrance to sugar release is a major limitation for cost-effective industrial conversion of lignocellulosic biomass to biofuels. Many literatures had reported the contribution of lignin removal to cellulose accessibility to enzyme, but less to the hemicellulose hydrolysis. Herein, beech xylan with lignin addition, partly delignified sugarcane bagasse (SB), energy sorghum hybrids (ESH) were treated in liquid hot water (LHW) to investigate the effect of lignin on hemicellulose decomposition. The addition of lignin can enhance the low degree of polymerization of xylooligomers production resulted from the acid catalyzed cleavage of lignin-derived acidic products. However, a negative correlation was observed initially between the lignin level and the total xylose yield from ESH. Furthermore, samples with lignin addition or high lignin content had a great resistant to harsh reaction environment, about 93.5% total xylose lost but only 52.3% released due to the lack of lignin protection for the sample with 100% lignin removal.
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Affiliation(s)
- Qiang Yu
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
| | - Xinshu Zhuang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Zhenhong Yuan
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China.
| | - Xiaoying Kong
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Wei Qi
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Wen Wang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
| | - Qiong Wang
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China; University of Chinese Academic of Sciences, Beijing 100039, China
| | - Xuesong Tan
- Key Laboratory of Renewable Energy, Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, China
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