Vol 3: Raw agro-industrial orange peel waste as a low cost effective inducer for alkaline polygalacturonase production from Bacillus licheniformis SHG10.Reportar como inadecuado



 Vol 3: Raw agro-industrial orange peel waste as a low cost effective inducer for alkaline polygalacturonase production from Bacillus licheniformis SHG10.


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This article is from SpringerPlus, volume 3.AbstractThe current study underlines biotechnological valorization of the accumulated and the non-efficiently utilized agro-industrial orange peel waste to produce polygalacturonase PGase, an industrially important enzyme with augmented demands in enzymes markets, from Bacillus licheniformis SHG10. Sequential statistical optimization of PGase production was performed through one variable at a time OVAT approach, Plackett-Burman PB and response surface methodology RSM. The impact of introduction of six raw agro-industrial wastes orange, lemon, banana, pomegranate, artichoke peel wastes and wheat bran and other synthetic carbon sources separately into the fermentation broth on PGase productivity was studied through OVAT approach. Orange peel waste as sole raw carbon source in basal medium proved to be the best PGase inducer. It promoted PGase productivity with relative specific activity of 166% comparable with the effect imposed by synthetic citrus pectin as a reference inducer. Three key determinants orange peel waste, pH of the production medium and incubation temperature had RSM optimal levels of 1.76% w-v, 8.0 and 37.8°C, respectively along with maximal PGase level 2.69 μg galacturonic acid. min-1. mg-1 within 48 hrs. Moreover, SHG10 PGase exhibited activity over a wide range of pH 3-11 and an optimal activity at 50°C. Data greatly encourage pilot scale PGase production from B. licheniformis SHG10.



Autor: Embaby, Amira M; Masoud, Aliaa A; Marey, Heba S; Shaban, Nadia Z; Ghonaim, Tayssir M

Fuente: https://archive.org/







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