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Malabar sole (Cynoglossus macrostomus) skin as promising source of type I acid and pepsin solubilized collagens with potential bioactivity.

IR@CFTRI: CSIR-Central Food Technological Research Institute, Mysore

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Relation http://ir.cftri.com/14805/
https://doi.org/10.1007/s13197-021-04996-8
 
Title Malabar sole (Cynoglossus macrostomus) skin as promising source of type I acid and pepsin solubilized collagens with potential bioactivity.
 
Creator Lidiya, C. Johny
Vijaykumar, M.
Tanaji, G. Kudre
Suresh, P. V.
 
Subject 03 Proteins
Fish
 
Description t Fish skin is one of the major non-edible by�products formed during fish processing. This investigation focused on the sustainable valorization of Malabar sole (MS) skin for collagen, which can be utilized as potential alternative of mammalian collagen. Acid and pepsin solu�bilized collagen (ASC and PSC) were successfully isolated from MS skin with a yield (%, dry weight basis) of 49.5 ± 0.6 and 67.6 ± 0.5, respectively. The isolated collagens were characterized by SDS-PAGE, UV-absorp�tion, DSC, SEM, FTIR spectroscopy, etc., analysis. Both collagens were characterized as type I by SDS-PAGE and the well preserved triple helical structure by FTIR and UV absorption analysis. Denaturation temperature (�C) of the MS skin collagens confirmed by DSC analysis was 33.67 (ASC) and 33.38 (PSC). Both collagens showed high sol�ubility in acidic pH and low NaCl level, and also exhibited a comparatively high degree of fibril-forming capacity. Antioxidant potential of the isolated collagens was confirmed by DPPH (31.4–34.6% at 1.5 mg) and peroxyl (64.6–68.3% at 0.3 mg) radical scavenging assays and observed a dose dependent manner activity. Overall, the results suggested the possibility of using the MS skin as a potential substitute source of realistic type I collagen and also help to reduce issues of fish processing discards.
 
Date 2021
 
Type Article
PeerReviewed
 
Format pdf
 
Language en
 
Identifier http://ir.cftri.com/14805/1/J%20Food%20Sci%20Technol%202021-2.pdf
Lidiya, C. Johny and Vijaykumar, M. and Tanaji, G. Kudre and Suresh, P. V. (2021) Malabar sole (Cynoglossus macrostomus) skin as promising source of type I acid and pepsin solubilized collagens with potential bioactivity. Journal of Food Science and Technology. ISSN 0022-1155