Title of article :
Isolation and characterisation of collagens from the skin of largefin longbarbel catfish (Mystus macropterus)
Author/Authors :
Zhang، نويسنده , , Min and Liu، نويسنده , , Wentao and Li، نويسنده , , Guoying، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Pages :
6
From page :
826
To page :
831
Abstract :
Acid-soluble collagen (ASC) and pepsin-soluble collagen (PSC) were extracted from the skin of largefin longbarbel catfish (Mystus macropterus) with yields of 16.8% and 28.0%, respectively, on the basis of dry weight. Both ASC and PSC contained α1 and α2 chains and the amino acid composition of collagen was close to that of calf skin type І collagen. The intrinsic viscosities of ASC and PSC were 14.9 dl/g and 14.5 dl/g, respectively. Similar ultraviolet and FTIR spectra of ASC and PSC were observed. However, peptide maps of ASC and PSC, hydrolysed by trypsin, revealed some differences in primary structures between the two fractions. Denaturation temperatures of ASC and PSC were 32.1 °C and 31.6 °C, respectively. The higher Tm showed that it is possible to use largefin longbarbel catfish skin collagen as an alternative source of vertebrate collagens for industrial purposes.
Keywords :
Collagen , catfish , Mystus macropterus , skin , characterisation
Journal title :
Food Chemistry
Serial Year :
2009
Journal title :
Food Chemistry
Record number :
1958234
Link To Document :
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