Composition of Lignocellulose Hydrolysate in Different Biorefinery Strategies: Nutrients and Inhibitors

Molecules, Journal Year: 2024, Volume and Issue: 29(10), P. 2275 - 2275

Published: May 11, 2024

The hydrolysis and biotransformation of lignocellulose, i.e., biorefinery, can provide human beings with biofuels, bio-based chemicals, materials, is an important technology to solve the fossil energy crisis promote global sustainable development. Biorefinery involves steps such as pretreatment, saccharification, fermentation, researchers have developed a variety biorefinery strategies optimize process reduce costs in recent years. Lignocellulosic hydrolysates are platforms that connect saccharification downstream fermentation. hydrolysate composition closely related biomass raw pretreatment process, choice biorefining strategies, provides not only nutrients but also possible inhibitors for In this review, we summarized effects each stage lignocellulosic on inhibitors, analyzed huge differences nutrient retention inhibitor generation among various emphasized all lignocellulose need be considered comprehensively achieve maximum optimal control at low cost, reference development chemicals.

Language: Английский

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Cellulosomal hemicellulases: Indispensable players for ensuring effective lignocellulose bioconversion

Green Carbon, Journal Year: 2024, Volume and Issue: 2(1), P. 57 - 69

Published: Jan. 15, 2024

The bioconversion of lignocellulose has attracted global attention, due to the significant potential agricultural and forestry wastes as renewable zero-carbon resources urgent need for substituting fossil carbon. cellulosome system is a multi-enzyme complex produced by anaerobic bacteria, which comprises cellulases, hemicellulases, associated enzymatic non-enzymatic components that promote biomass conversion. To enhance their efficiency in degrading recalcitrant lignocellulosic matrices, cellulosomes have been employed construct biocatalysts bioconversion, such consolidated bioprocessing bio-saccharification. Hemicelluloses, second most abundant polysaccharides plant cell walls, hold valuable application but can also induce inhibitory effects on cellulose hydrolysis, thus highlighting indispensable roles hemicellulases within complex. This review evaluated current research cellulosomal comparing types, abundance, regulation, primarily focusing eight known cellulosome-producing species different origins. We reviewed growth conditions, hemicellulose-degrading capabilities, hemicellulose cellulosome-based saccharification. Finally, we proposed strategies targeted enhancement hemicellulase improve future studies.

Language: Английский

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Enzymes and enzymatic mechanisms in enzymatic degradation of lignocellulosic biomass: A mini-review

Bioresource Technology, Journal Year: 2022, Volume and Issue: 367, P. 128252 - 128252

Published: Nov. 5, 2022

Language: Английский

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Microbial co-cultures for biochemicals production from lignocellulosic biomass: A review

Bioresource Technology, Journal Year: 2023, Volume and Issue: 386, P. 129499 - 129499

Published: July 17, 2023

Global reliance on fossil oil should shift to cleaner alternatives get a decarbonized society. One option achieve this ambitious goal is the use of biochemicals produced from lignocellulosic biomass (LCB). The inherent low biodegradability LCB and inhibitory compounds that might be released during pretreatment are two main challenges for valorization. At microbiological level, constraints mostly linked need axenic cultures preference certain carbon sources (i.e., glucose). To cope with these issues, review focuses efficient conversion via sugar platform as well an innovative carboxylate taking advantage co-cultivation microorganisms. This discusses novel trends in microbial communities co-cultures aiming at different bioproducts co-generation single reactors sequential bioprocess combination. outlook further perspectives have been outlined future successful development.

Language: Английский

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Valorization of durian peel as a carbon feedstock for a sustainable production of heterogeneous base catalyst, single cell oil and yeast-based biodiesel

Carbon Resources Conversion, Journal Year: 2024, Volume and Issue: 7(3), P. 100224 - 100224

Published: Jan. 20, 2024

The present study reports a successful attempt to produce single cell oil (SCO), heterogeneous base catalyst and yeast-based biodiesel from durian peel as promising carbon feedstock by means of the waste-to-energy concept. For this purpose, first, (DP) was hydrolyzed dilute sulfuric acid obtain xylose-rich DP hydrolysate (XDPH) post-hydrolysis solid residue (DPS). Candida viswanathii PSY8, newly isolated oleaginous yeast, showed high SCO accumulation (5.1±0.1 g/L) content (35.3 ± 0.13%) on undetoxified XDPH medium. A novel (DPS-K) prepared DPS wet impregnation technique with KOH, exhibited considerable catalytic activity convert SCO-rich yeast C. PSY8 into (FAME) via direct transesterification maximum FAME yield 94.3% under optimal conditions (6 wt% catalyst, 10:1 methanol ratio, 75 °C, 2 h). Moreover, most properties obtained profiles were correlated well standards limit Thai, ASTM D6751 EN 14214. Additionally, energy output produced about 37.5 MJ/kg estimated. Thus, finding demonstrated favorable strategy for sustainable eco-friendly production new generation biodiesel.

Language: Английский

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Promoting microbial fermentation in lignocellulosic hydrolysates by removal of inhibitors using MTES and PEI-modified chitosan-chitin nanofiber hybrid aerogel

Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 328, P. 121766 - 121766

Published: Jan. 2, 2024

Language: Английский

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Valorization of straw biomass into lignin bio-ink, bacterial cellulose and activated nanocarbon through the trade-off alkali-catalyzed glycerol organosolv biorefinery

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149549 - 149549

Published: Feb. 16, 2024

Language: Английский

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Pharmaceutically active micropollutants: origin, hazards and removal

Frontiers in Microbiology, Journal Year: 2024, Volume and Issue: 15

Published: Feb. 14, 2024

Pharmaceuticals, recognized for their life-saving potential, have emerged as a concerning class of micropollutants in the environment. Even at minute concentrations, chronic exposure poses significant threat to ecosystems. Various pharmaceutically active (PhAMP), including antibiotics, analgesics, and hormones, been detected underground waters, surface seawater, sewage treatment plants, soils, activated sludges due absence standardized regulations on pharmaceutical discharge. Prolonged exposureof hospital waste facilities is linked presence antibiotic-resistant bacteria. Conventional water methods prove ineffective, prompting use alternative techniques like photolysis, reverse osmosis, UV-degradation, bio-degradation, nano-filtration. However, commercial implementation faces challenges such incomplete removal, toxic sludge generation, high costs, need skilled personnel. Research gaps include comprehensively identify understand various types micropollutants, investigate long-term ecological impact, develop more sensitive monitoring techniques, explore integrated approaches. Additionally, there gap understanding socio-economic implications pollution efficacy public awareness campaigns. Future research should delve into strategies phagotherapy, vaccines, natural substance substitutes address escalating pollution.

Language: Английский

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High solids loading pretreatment: The core of lignocellulose biorefinery as an industrial technology – An overview

Bioresource Technology, Journal Year: 2022, Volume and Issue: 369, P. 128334 - 128334

Published: Nov. 17, 2022

Language: Английский

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Enhanced fermentable sugar production in lignocellulosic biorefinery by exploring a novel corn stover and configuring high-solid pretreatment conditions

Bioresource Technology, Journal Year: 2023, Volume and Issue: 386, P. 129498 - 129498

Published: July 16, 2023

Language: Английский

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