Enhancement of feather degrading keratinase of Streptomyces swerraensis KN23, applying mutagenesis and statistical optimization to improve keratinase activity

NM Abd El-Aziz, BE Khalil, HF Ibrahim - BMC microbiology, 2023 - Springer
In this study, 25 actinomyces isolates were obtained from 10 different poultry farms and
tested for their keratinase activity. The isolate with the highest keratinase activity was …

Enzymes used in the food industry: Friends or foes?

R Singh, A Singh, S Sachan - Enzymes in food biotechnology, 2019 - Elsevier
Enzymes, the natural catalysts for chemical reactions, are produced by all living cells. Their
role in food processing has also been recognized for many centuries. Even before this …

[PDF][PDF] A review on the bacterial alkaline proteases

G Gemechu, C Masi, M Tafesse, G Kebede - J Xidian Univ, 2020 - researchgate.net
This review constrains to alkaline protease production and application using various
bacterial strains. Protease also called proteinase or peptidase is a digestive enzyme that …

Current enzymatic milk fermentation procedures

C Beermann, J Hartung - European food research and technology, 2012 - Springer
Aside from bacteria, yeasts and moulds, enzymes from animal, vegetal and microbial
sources are increasingly utilized for milk fermentation providing a broad spectrum of …

Enhanced production of alkaline protease by a mutant of Bacillus licheniformis N-2 for dehairing

M Nadeem, JI Qazi, S Baig - Brazilian Archives of Biology and …, 2010 - SciELO Brasil
The purpose of the present investigations was to improve the yield of alkaline protease for
leather dehairing by subjecting the indigenous proteolytic strain Bacillus licheniformis N-2 to …

Enhancement of protease production from Rhizomucor miehei by mutagenesis with ethyl methanesulfonate, ultraviolet, and microwaves-a preliminary study

HA Aljammas, S Yazji, A Azizieh - Bioresource Technology Reports, 2022 - Elsevier
Rhizomucor miehei protease has been emerging as a potent substitute for the more
expensive calf rennet. Enzyme biosynthesis could be improved by using random …

[PDF][PDF] Development of mutant fungal strains of Aspergillus niger for enhanced production of acid protease in submerged and solid state fermentation

S Radha, RH Babu, A Sridevi, NBL Prasad… - European Journal of …, 2012 - researchgate.net
The acid protease productivity was enhanced by altering the genetic nature of wild type
fungal strain A. niger by conventional mutation methods. Two methods viz. chemical and …

[PDF][PDF] Improving production of extracellular proteases by random mutagenesis and biochemical characterization of a serine protease in Bacillus subtilis S1-4

XC Wang, HY Zhao, G Liu, XJ Cheng, H Feng - Genet Mol Res, 2016 - researchgate.net
The feather is a valuable by-product with a huge annual yield produced by the poultry
industry. Degradation of feathers by microorganisms is a prerequisite to utilize this insoluble …

Purification and characterization of a fibrinolytic enzyme from the food-grade fungus, Neurospora sitophila

X lan Liu, N kumar Kopparapu, H chen Zheng… - Journal of Molecular …, 2016 - Elsevier
A fibrinolytic protease was purified from the culture supernatant of a GRAS fungus,
Neurospora sitophila. The enzyme displayed a molecular mass of 34 kDa, as estimated by …

[PDF][PDF] Effect of different rennet type on physico-chemical properties and bitterness in white cheese

T Ozcan, U Eren-Vapur - International Journal of Environmental Science …, 2013 - Citeseer
White cheese is a soft or semi-hard cheese variety of the brined cheeses family which had
its origin in the Turkey and other Mediterranean countries. The changes in physicochemical …