Journal
FOOD CHEMISTRY
Volume 142, Issue -, Pages 430-438Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2013.07.079
Keywords
alpha-Galactosidase; Functionalized graphene; Response surface methodology; Flatulence; Immobilization
Funding
- University Grants Commission (UGC), New Delhi, India
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Cicer alpha-galactosidase was immobilized onto functionalized graphene with immobilization efficiency of 84% using response surface methodology (Box-Behnken design). The immobilized enzyme had higher thermal stability than the soluble one, attractive for industrial applications. Immobilization of the enzyme lowered the K-m to 1/3rd compared to the soluble enzyme. Raffinose family oligosaccharides (RFOs) are mainly responsible for flatulence by taking soybean derived food products. The immobilized enzyme can be used effectively for the hydrolysis of RFOs. After ten successive runs, the immobilized enzyme still retained approximately 60% activity, with soybean RFOs. The easy availability of enzyme source, ease of its immobilization on matrices, non-toxicity, increased stability of immobilized enzyme and effective hydrolysis of RFOs increase the Cicer alpha-galactosidase application in food processing industries. (C) 2013 Elsevier Ltd. All rights reserved.
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