Advantages and Progress Innovations of Solid-State Fermentation to Produce Industrial Enzymes

Londoño-Hernández, Liliana; Ruíz, Héctor A.; Toro, Cristina Ramírez; Ascacio-Valdes, Alberto; Rodríguez‐Herrera, Raúl; Aguilera-Carbó, Antonio; Tubío, Gisela; Picó, Guillermo; Prado-Barragán, Arely; Gutiérrez-Sánchez, Gerardo

doi:10.1007/978-981-15-1710-5_4

Cited by 10 publications

(2 citation statements)

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“…Of particular importance is also the porosity and specific surface of the particles of plant material, which determine the efficiency of air diffusion and the water-holding capacity of the substrate. The substrate's porosity must be sufficient to not limit the supply of necessary oxygen and the removal of carbon dioxide and the resulting metabolic heat [91]. In this regard, it is necessary to take into account the thickness and particle size of the substrate.…”

Section: Cultivation Methods For Cellulases Productionmentioning

confidence: 99%

Review of Recent Advances in the Physiology of the Regulation of Cellulase and Xylanase Production by Basidiomycetes

et al. 2023

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The potential of wood-rotting and litter-deconstructing basidiomycetes to convert lignocellulose into a wide variety of products has been extensively studied. In particular, wood-rotting basidiomycete secretomes are attracting much attention from researchers and biotechnology companies due to their ability to produce extracellular hydrolytic and oxidative enzymes that effectively degrade cellulose, hemicellulose, and lignin of plant biomass. An analysis of the available literature data shows that Basidiomycota fungi, which are most adapted to the depolymerization of plant polysaccharides, are promising but so far unexploited sources of new hydrolytic enzymes. The review summarizes the latest data on the great variety, common features, and unique properties of individual fungi and the production of cellulases and xylanases by various physiological and ecological groups of basidiomycetes. The most important microbial cellulase-producing strains for submerged and solid-phase fermentation, as well as the main substrates, including the use of agro-industrial waste, are considered. It highlights ways to increase both cellulase and xylanase expression levels and the cost-effectiveness of producing these enzymes for various biotechnological applications. It is anticipated that this review will be particularly useful to novice scientists working in the lignocellulose biorefinery, as it describes current knowledge and issues related to the production and regulation of polysaccharide hydrolyzing enzyme synthesis.

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Section: Cultivation Methods For Cellulases Productionmentioning

confidence: 99%

Review of Recent Advances in the Physiology of the Regulation of Cellulase and Xylanase Production by Basidiomycetes

et al. 2023

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“…Also, this experiment showed that the A. terreus strain degraded hemicellulose components of the fermented rice straw during the SSF bioprocess. An increase in the digestibility might be due to the production of enzymes cellulases, xylanases, and phenoloxidases by A. terreus strains, which would enhance the digestion of structural carbohydrates from lignocellulose feeds [ 57 , 58 ].…”

Section: Effect Of Lovastatin On Fermentation and Rumen Digestibilitymentioning

confidence: 99%

Lovastatin as a supplement to mitigate rumen methanogenesis: an overview

Ábrego-Gacía

Poggi‐Varaldo

Robles-González

et al. 2021

J Animal Sci Biotechnol

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Methane from enteric fermentation is the gas with the greatest environmental impact emitted by ruminants. Lovastatin (Lv) addition to feedstocks could be a strategy to mitigate rumen methane emissions via decreasing the population of methanogenic archaea (MA). Thus, this paper provides the first overview of the effects of Lv supplementation, focusing on the inhibition of methane production, rumen microbiota, and ruminal fermentation. Results indicated that Lv treatment had a strong anti-methanogenic effect on pure strains of MA. However, there are uncertainties from in vitro rumen fermentation trials with complex substrates and rumen inoculum.Solid-state fermentation (SSF) has emerged as a cost-effective option to produce Lv. In this way, SSF of agricultural residues as an Lv-carrier supplement in sheep and goats demonstrated a consistent decrease in ruminal methane emissions. The experimental evidence for in vitro conditions showed that Lv did not affect the volatile fatty acids (VFA). However, in vivo experiments demonstrated that the production of VFA was decreased. Lv did not negatively affect the digestibility of dry matter during in vitro and in vivo methods, and there is even evidence that it can induce an increase in digestibility. Regarding the rumen microbiota, populations of MA were reduced, and no differences were detected in alpha and beta diversity associated with Lv treatment. However, some changes in the relative abundance of the microbiota were induced. Further studies are recommended on: (i) Lv biodegradation products and stability, as well as its adsorption onto the solid matter in the rumen, to gain more insight on the “available” or effective Lv concentration; and (ii) to determine whether the effect of Lv on ruminal fermentation also depends on the feed composition and different ruminants.

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