Topic
Solid-state fermentation
About: Solid-state fermentation is a research topic. Over the lifetime, 5311 publications have been published within this topic receiving 113337 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: The combined fermentation upgraded the nutritional value, enhanced the efficiency of ensiling and reduced bioprocessing costs.
92 citations
TL;DR: The extension from static column cultivation to stirred tank reactor of 65 L capacity gave similar yields of cellulase and the effects of fermentation conditions, such as moisture content, pH, temperature, and aeration, on cellulase production by Trichoderma harzianum using a mixture of wheat straw and bran were investigated.
Abstract: Cellulase production from lignocellulosic materials was studied in solid-state cultivation by both static and mixed techniques under nonaseptic conditions. The effects of fermentation conditions, such as moisture content, pH, temperature, and aeration, on cellulase production by Trichoderma harzianum using a mixture of wheat straw (80%) and bran (20%) were investigated. With a moisture content of 74% and a pH of 5.8., 18 IU filter paper activity and 198 IU endoglucanase activity/g initial substrate content were obtained in 66 h. The extension from static column cultivation to stirred tank reactor of 65 L capacity gave similar yields of cellulase.
92 citations
TL;DR: The response surface modeling was applied effectively to optimize the production of both pectinase and cellulase by A. niger under same fermentation conditions to make the process cost-effective in both submerged and solid state fermentation using agro industrial wastes as substrate.
Abstract: The present study deals with the optimization of substrate and fermentation conditions for the production of both pectinase and cellulase by Aspergillus niger NCIM 548 under same fermentation conditions in submerged fermentation (SmF) and solid state fementation (SSF) using a central composite face centered design of response surface methodology (RSM). As per statistical design, the optimum conditions for maximum production of pectinase (1.64 U/mL in SmF and 179.83 U/g in SSF) and cellulase (0.36 U/mL in SmF and 10.81 U/g in SSF) were, time 126 h, pH 4.6, and carbon source concentration 65 g/L in SmF and were time 156 h, pH 4.80, and moisture content 65% in SSF. The response surface modeling was applied effectively to optimize the production of both pectinase and cellulase by A. niger under same fermentation conditions to make the process cost-effective in both submerged and solid state fermentation using agro industrial wastes as substrate.
92 citations
TL;DR: Schizophyllum commune, a white rot basidiomycete, was studied for ligninolytic enzymes (manganese peroxidase, lignin peroxideidase and laccase) production in solid-state fermentation (SSF) of rice straw as mentioned in this paper.
Abstract: The modification of lignin is recognized as an important aspect of the successful refining of lignocellulosic biomass. Schizophyllum commune , a white rot basidiomycete was studied for ligninolytic enzymes (manganese peroxidase, lignin peroxidase and laccase) production in solid-state fermentation (SSF) of rice straw. Various physiological factors such as incubation time, culture pH, incubation temperature, C:N ratio and addition of mediators were optimized to enhance enzymes productivity. Maximum enzyme recoveries were obtained at pH, 5.0; temperature, 35 °C; C:N ratio, 20:1; mediator, MnSO 4 ; inoculum size, 4 mL after incubation time of 144 h. The crude ligninolytic extract thus produced was used for delignification of various agro-industrial residues. The enzyme extract caused 61.7%, 47.5%, 72.3% and 67.2% lignin removal from banana stalk, corn cobs, sugarcane bagasse, and wheat straw, respectively. The optimally delignified substrate was enzymatically digested by crude cellulase extract from Trichoderma harzaianum that resulted 47.3% and 69.4% cellulose hydrolysis from the native and pre-treated bagasse, respectively. The results suggested that lignocellulosic waste could be utilized as low-cost substrate for the production of enzymes which play significant role in many industrial and biotechnological sectors.
92 citations
TL;DR: The gibberellins (GAs) are an important group of hormones which exert various effects on promoter and regulator of plant growth, its production by fermentation and new advances that are being carried out with special interest on the SSF technique are described.
Abstract: The gibberellins (GAs) are an important group of hormones which exert various effects on promoter and regulator of plant growth. Gibberellic acid (GA(3)) is a natural plant hormone, with great economical and industrial importance. It affects stem elongation, germination, elimination of dormancy, flowering, sex expression, enzyme induction and leaf and fruit senescence. Despite its diverse applications, the use of GA(3) is limited due to its high production costs. The industrial process currently used for the production of GA(3) is based on submerged fermentation (SmF) techniques. As an alternative for its production, solid state fermentation (SSF) has also been investigated for its ability to increase the yields of GA(3) with the use of agro-industrial wastes as support/substrate, which contributes to the decreased production costs. This review describes GA(3)'s physical, chemical and biological properties, its production by fermentation and new advances that are being carried out with special interest on the SSF technique.
91 citations