Biomass Conversion and Biorefinery最新文献

{"title":"The improvement in methane production, nutrient removal, and heavy metal passivation during anaerobic digestion of chicken manure: The role of modified porous materials","authors":"Xiaoliang Luo,&nbsp;Cunlan Liu,&nbsp;Jun Wang,&nbsp;Mingguo Peng,&nbsp;Rongyan Shen,&nbsp;Wenyi Zhang,&nbsp;Linqiang Mao","doi":"10.1007/s13399-024-06210-z","DOIUrl":"10.1007/s13399-024-06210-z","url":null,"abstract":"<div><p>With the expansion of poultry farming, large amounts of unabsorbed nutrients and heavy metals (HMs) in chicken manure are released, causing environmental pollution. Anaerobic digestion (AD), as a common, harmless, and resourceful treatment method, faces challenges with high-concentration harmful substances, necessitating improvements in the treatment effect. This study explored the application of a modified external porous passivator (EPP) in the AD of chicken manure (CM) and corn straw (CS), focusing on pH adjustment, methane production, nutrient element removal, and heavy metal (HM) passivation. There were 9 kinds of modified EPP prepared by loading Mg, Fe, and humic acid (HS) onto the surfaces of attapulgite (AT), biochar (BC), and zeolite (ZO) using the impregnation-baking method. Modifications with Fe- and HS-modified EPP significantly increased methane yields by up to 76.52%. Mg-modified EPP excelled in removing nitrogen (N) and phosphorus (P), with reductions exceeding 47.69% for total nitrogen (TN), 31.95% for total ammonia nitrogen (TAN), 78.55% for total phosphorus (TP), and 83.76% for total phosphate (TPS). Mg modifications notably improved passivation efficiencies for Cu and Zn to 12.03% and 24.73%. Structural modifications, chemical enhancements from new elemental incorporations, and changes in surface charge, significantly boosted adsorption capacities for nutrients and heavy metals (HMs). These improvements underscore the potential of modified EPP in optimizing AD processes, offering substantial benefits in energy recovery and environmental pollution mitigation.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15019 - 15033"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biochars derived from banana and mango peels in isolated systems revealed high removal efficiency of endocrine-disrupting compounds from water","authors":"Hildegard R. Kasambala,&nbsp;Mwemezi J. Rwiza,&nbsp;Nelson Mpumi,&nbsp;Mwema Felix Mwema,&nbsp;Karoli K. Njau","doi":"10.1007/s13399-024-06196-8","DOIUrl":"10.1007/s13399-024-06196-8","url":null,"abstract":"<div><p>This study investigated the effectiveness of biochar derived from banana and disrupting endocrine-disrupting compounds (EDCs) from water in isolated systems. The study aimed to provide an eco-friendly solution for water purification using agricultural waste products. Banana and mango peels were dried, ground, and calcinated at 300, 550, and 700 °C temperatures. The biochar was tested through a batch adsorption experiment for the removal of progesterone, and the remaining progesterone was analyzed using high-performance liquid chromatography (HPLC). Results indicated that the banana peel biochar (BPB) and mango peel biochar (MPB) achieved the highest adsorption capacities of 92.8 and 87.9%, respectively, when subjected to pyrolysis at 700 °C. The effect of other factors on adsorbent efficiency and its characteristics were subsequently analyzed by biochar calcinated at 700 °C. Results indicate that as the concentration of adsorbent increases, the adsorption efficiency increases while the adsorption capacity decreases. The Langmuir model fits better in BPB, while the Freundlich model fits better in MPB. The maximum adsorption capacities of the Langmuir model were 43.42 and 37.80 mg of progesterone per g of BPB and MPB, respectively. The scanning electron microscopy image (SEM) showed that biochar from 700 °C presents higher porosities than biochar. The Brunauer–Emmett–Teller (BET) showed that both biochars had high surface area and equal pore volume. Therefore, the study suggests that BPB and MPB are the best eco-friendly agricultural waste materials for development of sustainable water treatment technologies for removal of EDCs from water.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 9","pages":"13575 - 13588"},"PeriodicalIF":3.5,"publicationDate":"2024-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090991","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of plasma treatments on surface modification and thermal behaviour of Ceiba pentandra fibres","authors":"J. Vidya,&nbsp;R. Sunitha,&nbsp;C. Prakash","doi":"10.1007/s13399-024-06191-z","DOIUrl":"10.1007/s13399-024-06191-z","url":null,"abstract":"<div><p>An eco-friendly method of surface modification known as plasma treatment has been applied extensively to a wide range of materials and industries. Compared to wet chemical procedures, plasma treatment is an environmentally benign, dry, and clean approach that poses no risks to human health or the environment. Plasma treatment improves the fibre surface roughness which in turn increases fibre-matrix adhesion to a great extent resulting in improved properties of composites. This study focuses on the treatment of <i>Ceiba pentandra</i> fibre using nitrogen and oxygen plasma with varying times and temperatures of exposure which were then assessed for their properties for determining the best conditions that provide intrinsic effects on textiles. The oxygen plasma treatment on <i>Ceiba pentandra</i> fibres showed the best results for surface modification at 35 °C for 20 min of exposure, and nitrogen plasma treatment exhibited the best results at the same temperature with lesser time of exposure for 10 min itself as per the morphological analysis. As for the roughness of fibres, the peak and valley values increased in all the samples treated with oxygen plasma and nitrogen plasma over the raw fibres. The roughness showed a drastic increase in the sample treated with both the gases namely oxygen and nitrogen at a temperature of 35 °C for 20 min of exposure with Rz values of 503.23 µm and 496.97 µm, respectively, over the untreated fibre samples which exhibit only 104.89 µm. The thermal stability was the highest in the fibres treated at 35 °C for 30 min on oxygen plasma treatment and at 30 °C for 10 min on nitrogen plasma treatment. This surface modification and thermal stability behaviour could find its utilization for composite manufacturing. It could be concluded that plasma treatment is an excellent effective technique for improving the surface roughness of <i>Ceiba pentandra</i> fibres which could be well utilized in composite manufacturing for its perfect matrix-reinforcement adhesion.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"15007 - 15018"},"PeriodicalIF":3.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108480","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Expanding horizons: Harnessing Dunaliella microalgae for sustainable organic pigment production","authors":"Gurunathan Baskar,&nbsp;M. Muthulakshmi,&nbsp;Ravichandran Pravin,&nbsp;Anil Kumar Patel","doi":"10.1007/s13399-024-06202-z","DOIUrl":"10.1007/s13399-024-06202-z","url":null,"abstract":"<div><p>The demand for organic pigments across various industries, including food, cosmetics, and pharmaceuticals, has led to a quest for diverse and sustainable sources. Microalgae of the <i>Dunaliella</i> species have emerged as promising candidates for pigment production due to their ability to mitigate CO₂ emissions and thrive under extreme environmental conditions, such as high salinity and intense light exposure, even in sub-zero temperatures. This review uses <i>Dunaliella</i> species to explore the bioprocesses harnessing natural pigments, including chlorophylls (a, b, c, d, and f), carotenes (α and β), and xanthophylls. This review investigates the important process parameters: synthetic mediums, light regimes, CO₂ utilization strategies, and solvent choices employed in pigment production from <i>Dunaliella</i> species. Moreover, it analyzes this expanding industry’s economic and environmental impacts, emphasizing the need for cost-effective and eco-friendly large-scale applications. By elucidating advancements in cultivation, extraction techniques, and pigment utilization, this review aims to pave the way for the widespread adoption of <i>Dunaliella</i>-based pigment extraction, promising a greener and more sustainable future.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 9","pages":"13055 - 13078"},"PeriodicalIF":3.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091201","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of coagulation/flocculation followed by dissolved air flotation on anaerobic digestion of coffee processing wastewater","authors":"Raphael Rivadávia,&nbsp;André Pereira Rosa,&nbsp;Larissa Almeida Nascimento,&nbsp;Dilson Novais Rocha,&nbsp;Fabiana Lopes Del Rei Passos,&nbsp;Natália dos Santos Renato,&nbsp;Alisson Carraro Borges","doi":"10.1007/s13399-024-06167-z","DOIUrl":"10.1007/s13399-024-06167-z","url":null,"abstract":"<div><p>This study aimed to optimize the conditions of chemically assisted physical treatment (CAPT) using coagulation/flocculation followed by dissolved air flotation (C/F + DAF) for solid removal, assess the impact of primary treatment on anaerobic digestion using a biochemical methane potential (BMP) test, and evaluate kinetic models’ fit to biogas production results for coffee processing wastewater (CPW). In Phase 1, CPW underwent characterization, and C/F + DAF conditions were optimized using ferric chloride in a rotational central composite design. pH and coagulant were independent variables, while removed turbidity and residual phenolic compounds (PC) were response variables. PC, associated with coffee fruits, can inhibit microbial activity, affecting anaerobic digestion efficiency. Phase 2 evaluated the primary treatment’s impact on anaerobic digestion via biomethane potential tests (BMP). CPW exhibited an acidic pH of 4.20 and high organic matter levels, with a total organic carbon (TOC) concentration of 2950 mg L⁻¹. Additionally, it contained phenolic compounds (PC) at 87.2 mg L⁻¹ and turbidity of 592.7 NTU, indicating a significant pollution load. In the CAPT optimization, turbidity removal ranged from 4 to 90% NTU, and PC removal ranged from 2.4 to 61% mg L⁻¹ as C₇₆H₅₂O₄₆ in the optimization experiment. Substantial reductions in organic load (35%), turbidity (68.23%), and PC (21.11% reduction) were observed after DAF in the absence of a coagulant. Untreated CPW (CPW_u) and CPW treated with dissolved air flotation (CPW_f) underwent a BMP test. The accumulated methane production was 379.1 mL ± 4.67 g VS^⁻1 for CPW_u and 388.6 mL ± 5.23 g VS^-¹ for CPW_f. The first-order kinetic model described methane production best, with rate constant (<i>k</i>) values of 0.51 and 0.48 d⁻¹ for CPW_u and CPW_f, respectively. DAF effectively removed turbidity and PC without hampering biogas production. The results of this research add to sustainable wastewater management in the coffee industry and have implications for biogas and energy recovery, underlining the potential for generating renewable energy through anaerobic digestion.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 8","pages":"11645 - 11658"},"PeriodicalIF":3.5,"publicationDate":"2024-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085022","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Avocado seed, coconut fiber, and vinegar residue blended composite biodegradable bioplastic film development: Agricultural waste management approach","authors":"Duy Toan Pham,&nbsp;Hong Giang Hoang,&nbsp;Bui Thi Phuong Thuy","doi":"10.1007/s13399-024-06195-9","DOIUrl":"10.1007/s13399-024-06195-9","url":null,"abstract":"<p>Traditional plastics are deeply embedded in modern life because of their convenience and affordability. However, their extensive use has resulted in significant environmental issues. To that end, biodegradable bioplastics, fabricated from natural sources containing starch and cellulose, offer a promising solution. Therefore, this present work utilized agricultural wastes, including starch extracted from avocado seed, microcrystalline cellulose (MCC) obtained from coconut fibers, and vinegar residue as binder and plasticizer, to produce biodegradable bioplastics, by the simple one-pot mixing process. The avocado seed contained 18% starch, and the 100-mesh starch consisted of amylose (0.089%), amylopectin (74.43%), water (21.47%), ash (0.25%), protein (1.98%), and lipid (1.68%). The optimal bioplastic formula comprised 10 g of avocado seed starch, 1 g of bentonite, 3 g of vinegar residue, 4 g of coconut fiber MCC, 5 mL of glycerol, and 50 mL of water. The resulting bioplastic film exhibited a tensile strength of 27.92 MPa, an elongation at a break of 23.68%, nano-sized crystallites of 18.47 nm, a smooth surface with transparency of 91 ± 3%, high water vapor transmission rates of 157.3 to 219.6 g/m²day, and modifiable chemical functional groups. These bioplastic films also exhibited excellent biodegradability, with complete degradations after 13 days, 38 days, and 100 days, in alkaline, acidic, salt, and soil conditions, respectively. In a nutshell, by using agricultural wastes, this research successfully formulated natural biodegradable bioplastics, consequently addressing the plastic pollution crisis and contributing to sustainable waste management practices and the development of economically feasible bioplastics.</p>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"14779 - 14790"},"PeriodicalIF":3.5,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"β-Cyclodextrin modified magnetic luffa biochar for efficient removal of Ni(II) from wastewater","authors":"Wang Xueping,&nbsp;Zhang Zhe","doi":"10.1007/s13399-024-06173-1","DOIUrl":"10.1007/s13399-024-06173-1","url":null,"abstract":"<div><p>In this study, a β-CD modified magnetic loofah biochar adsorbent (LB-MCD) was fabricated and its successful composite was demonstrated using diverse physical and chemical properties. The adsorbent has excellent specific surface area (29.46 m² g⁻¹) and magnetic separation ability (magnetization strength of 18.78 emu g⁻¹) and can rapidly separate ammonia nitrogen from wastewater within 50 s under the action of an applied magnetic field. The adsorption process was well correlated with the quasi-secondary kinetic model and Langmuir model (the Langmuir model fit value was 83.3 mg g⁻¹), and the adsorption reached the equilibrium in about 90 min, which was mainly carried out by monolayer adsorption, and the adsorption process was spontaneous and heat-absorbing. The LB-MCD had an excellent cycling performance, and its initial capacity (the dosage of LB-MCD was 0.06 g, the concentration of Ni(II) was7.65 mg g⁻¹, adsorption time was 100 min, and the pH = 7) was still 80% after 8 cycles of experiments. The LB-MCD showed excellent Ni(II) removal (R% &gt; 90) in various aqueous environments, including deionized water, tap water, lake water, and industrial wastewater. In conclusion, LB-MCD is an eco-friendly and potent adsorbent for the removal of Ni(II) from wastewater.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 10","pages":"14941 - 14952"},"PeriodicalIF":3.5,"publicationDate":"2024-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108672","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhanced substrate suitability of autoclave-assisted acid pre-treated waste sugarcane molasses: Pre-treatment optimization, sequential nano-based detoxification strategies, and bioproduct production","authors":"Bryce D. C. Bishop,&nbsp;Isaac A. Sanusi,&nbsp;Gueguim E. B. Kana","doi":"10.1007/s13399-024-06127-7","DOIUrl":"10.1007/s13399-024-06127-7","url":null,"abstract":"<div><p>This study modelled and optimised an autoclave-assisted acid pre-treatment of waste sugarcane molasses for the recovery of reducing sugar. Afterwards, the efficiency of removing 5-hydroxymethylfurfural (5-HMF), furfural, and metallic ion inhibitors from the pre-treated hydrolysate was evaluated using a nano-based adsorbent towards bioproduct production. A high coefficient of determination (<i>R</i>² = 0.98) and a maximum reducing sugar concentration of 98.14 g/L were achieved under optimised conditions of 20% (w/v) substrate loading, 0.75% (v/v) sulphuric acid concentration, and 5 min autoclave duration. Furthermore, the application of nano-adsorbent (Fe₃O₄ nanoparticle (0.2% (w/v)) led to a reduction in 5-HMF and furfural concentrations by 29.05% and 53.53%, respectively. Additionally, the concentrations of metal ion contents (Ca, Mg, Na, and S) were reduced by 4.97%, 7.59%, 15.04%, and 7.63%, respectively. Remarkably, surface modification of Fe₃O₄ nanoparticle using poly (ethylene glycol) (PEG), tri sodium citrate (TSC), chitosan-coated and k-carrageenan (k-C) enhanced the removal of metal ion contents up to 42.74-fold. The potential of the optimised pre-treated and detoxified molasses for citric acid (4.04 g/L) and bioethanol production (47.93 g/L) was achieved. The high efficiencies in reducing sugar recovery, inhibitor removal, and bioproduct production demonstrate the potential of a sustainable, cost-effective, and eco-friendly molasses biorefinery concept.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 8","pages":"12175 - 12188"},"PeriodicalIF":3.5,"publicationDate":"2024-09-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s13399-024-06127-7.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144085001","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Kinetics and thermodynamic analysis of pyrolysis of paper waste","authors":"Rohit,&nbsp;Munish K. Chandel","doi":"10.1007/s13399-024-06145-5","DOIUrl":"10.1007/s13399-024-06145-5","url":null,"abstract":"<div><p>The pyrolysis of paper waste can be a viable energy recovery and waste management strategy. However, the complex reaction involved in the process makes it difficult to understand the underlying decomposition mechanism and predict the final product yield. The kinetic and thermodynamic analysis of pyrolysis of paper waste can provide valuable insights into the complex nature of reactions, energy consumed, and the spontaneity of the process. This study aims to predict the kinetic and the associated thermodynamic parameters of paper waste pyrolysis using model-based (Coats-Redfern) and model-free techniques (Flynn–Wall–Ozawa, Kissinger–Akahira–Sunose and Vyazovkin). The pyrolysis of paper waste is carried out in a thermogravimetric analyzer, with varying heating rates of 5, 10, 15, and 20°Cmin⁻¹ and temperatures ranging from 30 to 800 °C. We have utilized the kinetic compensation effect and Criado master plot method to enhance the accuracy of the results. The best-fitted reaction model for the experimental data has been selected based on the coefficient of determination values and quality of fit (%) obtained for each reaction model. The findings indicate that the Zhuravlev diffusion model is the best-fitted model with the coefficient of determination values (<i>R</i>² &gt; 0.94) for region I (235–429 °C) and (<i>R</i>² &gt; 0.99) for region II (429–597 °C). The apparent activation energy values for the best-fitted reaction vary from 124 to 131 kJ/mol for region I and 2.5 to 37 kJ/mol for region II. The apparent activation energy values obtained using different methods exhibited a high degree of similarity.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 9","pages":"13751 - 13768"},"PeriodicalIF":3.5,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091121","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Combinations of fermentation and autohydrolysis to produce polysaccharide-based prebiotics from wheat bran and in vitro assessment of their prebiotic potentials","authors":"Yan Rong Sun,&nbsp;Wei Lin Yang,&nbsp;Ying Yu,&nbsp;Jing Wen Yin,&nbsp;Rui Xing Ge,&nbsp;Yi Bo Dong,&nbsp;Rui Dong Zhang,&nbsp;Long Wu,&nbsp;Yi Hua Xu,&nbsp;Xiao Wen Xie,&nbsp;Li Tong Chang,&nbsp;Qiang Li,&nbsp;Wei Min Du","doi":"10.1007/s13399-024-06174-0","DOIUrl":"10.1007/s13399-024-06174-0","url":null,"abstract":"<div><p>Gramineous biomass is an excellent source of polysaccharide-based prebiotics. However, there are shortages of the preparation process due to just xylooligosaccharide (XOS) were exploited, only specific particles from crushed materials were selected and a single concentration of ethanol precipitate were collected. Herein, <i>Bacillus subtilis</i> S1702 fermented wheat bran, 121 °C autohydrolysis with 0.75 M citric acid assistance, 20, 50, 60, and 80% ethanol precipitation were successively adopted to obtained fractions WB20, WB50, WB60, and WB80. It was demonstrated that the combined process including incubation at 37 °C for 36 h by 13% incubation dose, followed by acid-assisted autohydrolysis for 30 min at a solid:liquid ratio of 1:5 (w/v, g/mL), induced the feruloylated arabinoxylan yield of 340.00 ± 0.95 mM, which was significantly higher than those of only autohydrolysis (220.25 ± 1.18 mM) or fermentation and then autohydrolysis without acid assistance (120.76 ± 1.32 mM) (<i>p</i> &lt; 0.05). Furthermore, treatment by WB60 with moderate mass ratio of ferulic acid (FA) to glucan and arabinoxylan being 1:187 showed strong in vitro prebiotic activity based on highest total short-chain fatty acid output, the greatest ratios of butyric acid/acetic acid and <i>Bifidobacteria</i>/<i>Escherichia-Shigella,</i> which was better than those of administration of commercial XOS without FA, WB80 (1:136) and WB50 (1:218) with too higher or lower FA ratio. WB20 with the lowest FA ratio of 1:664 contained different complex polysaccharides and improved gut microbial diversities better than that of XOS. Overall, an appropriate concentration of ethanol precipitate with proper proportion of polyphenols to polysaccharides can improve gut redox imbalance better than purified or simple polysaccharides. This study will lay the foundation for making full use of bran prebiotic by using green technology.</p></div>","PeriodicalId":488,"journal":{"name":"Biomass Conversion and Biorefinery","volume":"15 8","pages":"11537 - 11548"},"PeriodicalIF":3.5,"publicationDate":"2024-09-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144084997","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}