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Production of highly active fungal milk-clotting enzyme by solid-state fermentation.

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Relation http://ir.cftri.com/14225/
https://doi.org/10.1080/10826068.2019.1630647
 
Title Production of highly active fungal milk-clotting enzyme
by solid-state fermentation.
 
Creator Chinmayeea, Cirium V.
Vidya, Cheral
Rani, Amsaraj
Sridevi Annapurna, Singh
 
Subject 04 Fermentation Technology
27 Dairy products
 
Description Cheese production is projected to reach 20 million metric tons by 2020, of which 33% is being
produced using calf rennet (EC 3.4.23.4). There is shortage of calf rennet, and use of plant and
microbial rennets, hydrolyze milk proteins non-specifically resulting in low curd yields. This study
reports fungal enzymes obtained from cost effective medium, with minimal down streaming,
whose activity is comparable with calf and Mucor rennet. Of the fifteen fungi that were screened,
Mucor thermohyalospora (MTCC 1384) and Rhizopus azygosporus (MTCC 10195) exhibited the highest
milk-clotting activity (MCA) of 18,383 ± 486 U/ml and 16,373 ± 558U/ml, respectively.
Optimization exhibited a 33% increase in enzyme production (30 g wheat bran containing 6%
defatted soy meal at 30 �C, pH 7) for M. thermohyalospora. The enzyme was active from pH 5–10
and temperature 45–55 �C. Rhizopus azygosporus exhibited 31% increase in enzyme production
(30 g wheat bran containing 4% defatted soy meal at 30 �C, pH 6) and the enzyme was active
from pH 6–9 at 50�C. Curd yields prepared from fungal enzyme extract decreased (5–9%), when
compared with calf rennet and Mucor rennet. This study describes the potential of fungal
enzymes, hitherto unreported, as a viable alternative to calf rennet
 
Publisher Taylor & Francis
 
Date 2019
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/14225/1/Preparative%20Biochemistry%20and%20Biotechnology%2C%20499%2C%20858-867.pdf
Chinmayeea, Cirium V. and Vidya, Cheral and Rani, Amsaraj and Sridevi Annapurna, Singh (2019) Production of highly active fungal milk-clotting enzyme by solid-state fermentation. Preparative Biochemistry and Biotechnology, 49 (9). pp. 858-867. ISSN 1082-6068