scholarly journals Production of iturin A through glass column reactor (GCR) from soybean curd residue (okara) by <i>Bacillus subtilis</i> RB14-CS under solid state fermentation (SSF)

2012 ◽  
Vol 03 (02) ◽  
pp. 143-148 ◽  
Author(s):  
Abdul Wahab Khan ◽  
Umme Salma Zohora ◽  
Mohammad Shahedur Rahman ◽  
Masahiro Okanami ◽  
Takashi Ano
Keyword(s):  
Bacillus Subtilis ◽  
Solid State ◽  
Solid State Fermentation ◽  
Iturin A ◽  
Column Reactor ◽  
Soybean Curd ◽  
Glass Column ◽  
Soybean Curd Residue

Evaluation of Solid-State Fermentation by Ganoderma lucidum Using Soybean Curd Residue

2012 ◽  
Vol 6 (7) ◽  
pp. 1856-1867 ◽  
Author(s):  
Min Shi ◽  
Yingnan Yang ◽  
Di Guan ◽  
Yuepeng Wang ◽  
Zhenya Zhang
Keyword(s):  
Solid State ◽  
Solid State Fermentation ◽  
Ganoderma Lucidum ◽  
Soybean Curd ◽  
Soybean Curd Residue

scholarly journals Comparative Evaluation of Agroindustrial Byproducts for the Production of Alkaline Protease by Wild and Mutant Strains ofBacillus subtilisin Submerged and Solid State Fermentation

2013 ◽  
Vol 2013 ◽  
pp. 1-6 ◽  
Author(s):  
Hamid Mukhtar ◽  
Ikramul Haq
Keyword(s):  
Bacillus Subtilis ◽  
Solid State ◽  
Wheat Bran ◽  
Solid State Fermentation ◽  
Soybean Meal ◽  
Alkaline Protease ◽  
Enzyme Production ◽  
Enhanced Production ◽  
Industrial Byproducts ◽  
Agroindustrial Byproducts

The present study describes the screening of different agroindustrial byproducts for enhanced production of alkaline protease by a wild and EMS induced mutant strain ofBacillus subtilisIH-72EMS8. During submerged fermentation, different agro-industrial byproducts were tested which include defatted seed meals of rape, guar, sunflower, gluten, cotton, soybean, and gram. In addition to these meals, rice bran, wheat bran, and wheat flour were also evaluated for protease production. Of all the byproducts tested, soybean meal at a concentration of 20 g/L gave maximum production of the enzyme, that is, 5.74  ±  0.26 U/mL from wild and 11.28  ±  0.45 U/mL from mutant strain, during submerged fermentation. Different mesh sizes (coarse, medium, and fine) of the soybean meal were also evaluated, and a finely ground soybean meal (fine mesh) was found to be the best. In addition to the defatted seed meals, their alkali extracts were also tested for the production of alkaline protease byBacillus subtilis, but these were proved nonsignificant for enhanced production of the enzyme. The production of the enzyme was also studied in solid state fermentation, and different agro-industrial byproducts were also evaluated for enzyme production. Wheat bran partially replaced with guar meal was found as the best substrate for maximum enzyme production under solid state fermentation conditions.

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