Fungal biorefinery for sustainable resource recovery from waste

Chatterjee, Sulogna; Mohan, S. Venkata

doi:10.1016/j.biortech.2021.126443

Cited by 27 publications

(13 citation statements)

References 107 publications

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“…Fungi produce also a variety of secondary metabolites that are involved in their development, defense, and host-interaction . These metabolites have been an historical treasure for drug discovery; only recently, microbial value-added products have found broad applications in food (organic acids as acidulants) and agrochemical (biopesticide and biostimulant production) industries. , …”

Section: Introductionmentioning

confidence: 99%

“…Microbial cultivation on waste-based substrates, to accomplish the dual benefits of complete utilization of wastes and production of value-added products such as enzymes or secondary metabolites, is one of the principles of biorefinery . The most widely used substrates are agro-industrial wastes such as wheat bran, spent coffee ground, rice husk, and bagasse. , These substrates are easily available with low or no economical cost, and they are able to support microbial growth.…”

Section: Introductionmentioning

confidence: 99%

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Solid-State Fermentation of Trichoderma spp.: A New Way to Valorize the Agricultural Digestate and Produce Value-Added Bioproducts

Bulgari

Alias

Peron

et al. 2023

J. Agric. Food Chem.

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In this study, the agricultural digestate from anaerobic biogas production mixed with food wastes was used as a substrate to grow Trichoderma reesei RUT-C30 and Trichoderma atroviride Ta13 in solid-state fermentation (SSF) and produce highvalue bioproducts, such as bioactive molecules to be used as ingredients for biostimulants. The Trichoderma spp. reached their maximum growth after 6 and 3 SSF days, respectively. Both Trichoderma species were able to produce cellulase, esterase, and citric and malic acids, while T. atroviride also produced gibberellins and oxylipins as shown by ultraperformance liquid chromatography with quadrupole time-of-flight mass spectrometry (UPLC-QTOF-MS) profiling. Experimental evaluation of germination parameters highlighted a significant promotion of tomato seed germination and root elongation induced by T. atroviride crude extracts from SSF. This study suggests an innovative sustainable use of the whole digestate mixed with agro-food waste as a valuable substrate in fungal biorefineries. Here, it has been applied to produce plant growth-promoting fungi and bioactive molecules for sustainable agriculture.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Solid-State Fermentation of Trichoderma spp.: A New Way to Valorize the Agricultural Digestate and Produce Value-Added Bioproducts

Bulgari

Alias

Peron

et al. 2023

J. Agric. Food Chem.

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“…Enzymatic pretreatments can be an alternative but present a major limitation of risk of reaction inhibition by phenolic compounds as well as the high capital cost involved for enzyme production and downstream processing [ 37 ]. Thus, solid-state fermentation with selected WRF is an attractive option for the pretreatment of various types of lignocellulosic residues [ 5 , 17 , 23 , 24 , 36 ] and can be important tools in the implementation of circular economy processes for the production of biofuels and other value-added chemicals, according to the concept of biorefinery and the principle of zero waste discharge [ 38 ].…”

Section: Resultsmentioning

confidence: 99%

Solid-State Fermentation of Chestnut Shells and Effect of Explanatory Variables in Predictive Saccharification Models

Pinto

Bezerra

Fraga

et al. 2022

IJERPH

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In this study, chestnut shells (CNS), a recalcitrant and low-value agro-industrial waste obtained during the peeling of Castanea sativa fruits, were subjected to solid-state fermentation by six white-rot fungal strains (Irpex lacteus, Ganoderma resinaceum, Phlebia rufa, Bjerkandera adusta and two Trametes isolates). After being fermented, CNS was subjected to hydrolysis by a commercial enzymatic mix to evaluate the effect of fermentation in saccharification yield. After 48 h hydrolysis with 10 CMCase U mL−1 enzymatic mix, CNS fermented with both Trametes strains was recorded with higher saccharification yield (around 253 mg g−1 fermented CNS), representing 25% w/w increase in reducing sugars as compared to non-fermented controls. To clarify the relationships and general mechanisms of fungal fermentation and its impacts on substrate saccharification, the effects of some independent or explanatory variables in the production of reducing sugars were estimated by general predictive saccharification models. The variables considered were lignocellulolytic activities in fungal fermentation, CNS hydrolysis time, and concentration of enzymatic hydrolysis mix. Multiple linear regression analysis revealed a very high significant effect (p < 0.0001) of fungal laccase and xylanase activities in the saccharification models, thus proving the key potential of these enzymes in CNS solid-state fermentation.

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“…Glucose is the most basic carbon source of microorganisms. Many studies explore the glucose-based lipid accumulation of fungi, and the lipid content can reach higher than 70% (w/w) ( 41 , 78 – 80 ). However, the large-scale production of microbial fatty acids with glucose as a raw material will face the problems of “competing with people for food” and “competing with food for land”, which necessitates the search for other suitable raw materials to reduce the costs ( 9 , 81 , 82 ).…”

Section: Fatty Acid Production From Raw Materialsmentioning

confidence: 99%

Production, Biosynthesis, and Commercial Applications of Fatty Acids From Oleaginous Fungi

Zhang

Huang

et al. 2022

Front. Nutr.

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Oleaginous fungi (including fungus-like protists) are attractive in lipid production due to their short growth cycle, large biomass and high yield of lipids. Some typical oleaginous fungi including Galactomyces geotrichum, Thraustochytrids, Mortierella isabellina, and Mucor circinelloides, have been well studied for the ability to accumulate fatty acids with commercial application. Here, we review recent progress toward fermentation, extraction, of fungal fatty acids. To reduce cost of the fatty acids, fatty acid productions from raw materials were also summarized. Then, the synthesis mechanism of fatty acids was introduced. We also review recent studies of the metabolic engineering strategies have been developed as efficient tools in oleaginous fungi to overcome the biochemical limit and to improve production efficiency of the special fatty acids. It also can be predictable that metabolic engineering can further enhance biosynthesis of fatty acids and change the storage mode of fatty acids.

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Fungal biorefinery for sustainable resource recovery from waste

Cited by 27 publications

References 107 publications

Solid-State Fermentation of Trichoderma spp.: A New Way to Valorize the Agricultural Digestate and Produce Value-Added Bioproducts

Solid-State Fermentation of Trichoderma spp.: A New Way to Valorize the Agricultural Digestate and Produce Value-Added Bioproducts

Solid-State Fermentation of Chestnut Shells and Effect of Explanatory Variables in Predictive Saccharification Models

Production, Biosynthesis, and Commercial Applications of Fatty Acids From Oleaginous Fungi

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