2006
DOI: 10.1590/s1516-89132006000600019
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Rice bran as a substrate for proteolytic enzyme production

Abstract: Rice bran was used as the substrate for screening nine strains of Rhizopus sp. for neutral protease production by solid-state fermentation. The best producer, Rhizopus microsporus NRRL 3671, was used for optimizing the process parameters for enzyme production. Fermentation carried out with 44.44 % initial moisture content at a temperature of 30 C for 72 h was found to be the optimum for enzyme secretion by the fermenting organism. While most of the carbon supplements favored enzyme production, addition of case… Show more

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Cited by 44 publications
(26 citation statements)
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“…In India and other countries, approximately one million tons of rice bran are produced annually and used predominantly for animal feed [30]. Use of rice bran as substrate for microbial enzyme production has been reported earlier especially for solid state fermentation [31][32][33]. There are meagre reports on use of rice bran in submerged fermentation.…”
Section: Optimization By Rsmmentioning
confidence: 99%
“…In India and other countries, approximately one million tons of rice bran are produced annually and used predominantly for animal feed [30]. Use of rice bran as substrate for microbial enzyme production has been reported earlier especially for solid state fermentation [31][32][33]. There are meagre reports on use of rice bran in submerged fermentation.…”
Section: Optimization By Rsmmentioning
confidence: 99%
“…Figure 10 indicates that when the temperature was between 39-41°C and pH 5-5.4, maximum protease activity was observed but increase in pH to 7 and temperature to 45°C decreased the protease production (Sumantha et al, 2006;Vishwanatha et al, 2010).…”
Section: Ph Verses Temperaturementioning
confidence: 99%
“…Atividades enzimáticas A atividade de protease foi verificada usando-se caseína a 1% como substrato, preparada em tampão Tris-HCl, 50 mM, pH 7,0 9 . Uma amostra (0,5 mL) do extrato bruto foi misturada ao substrato (0,5 mL).…”
Section: Materials E Métodos Cultivosunclassified