Degradation of caseins from milk of different species by extracts of Centaurea calcitrapa

• Type: Article in International Scientific Journal
• Date: 1997

Authors

Tavaria, FK (Author) Other; Sousa, MJ (Author) Other; Domingos, A (Author) Other; F. Xavier Malcata (Author) Other; Brodelius, P (Author) Other; Clemente, A (Author) Other; Pais, MS (Author) Other

Journal

Title: Journal of Agricultural and Food Chemistry

Vol. 45

Pages: 3760-3765

ISSN: 0021-8561

Publisher: American Chemical Society

Indexing

ISI Web of Knowledge - 31 Citations

Scopus - 34 Citations

Other information

Authenticus ID: P-001-AKB

DOI: 10.1021/jf970095x

Abstract (EN): Two purified aqueous extracts of Centaurea calcitrapa, a plant from the Compositae family, were shown to degrade bovine, ovine, and caprine milk caseinates. The corresponding hydrolysis patterns were monitored by urea-polyacrylamide gel electrophoresis and compared with those of a commercial mixture of chymosin and pepsin. The plant proteases degraded both alpha(s)- and beta-caseins more extensively than the commercial rennet, thus yielding proteolytic patterns where different specificities toward such substrates are apparent. The animal rennet was found to display the greatest clotting power per milligram of protein but the least specificity toward ovine and caprine caseins. It is, therefore, suggested that the said plant extracts be used as an alternative to commercial animal rennets especially in the manufacture of caprine and ovine milk cheeses.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6