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Titolo:
Trace elements and their distribution in protein fractions of camel milk in comparison to other commonly consumed milks
Autore:
Al-Awadi, FM; Srikumar, TS;
Indirizzi:
Kuwait Univ, Hlth Sci Ctr, Fac Med, Dept Biochem, Safat 13110, Kuwait Kuwait Univ Safat Kuwait 13110 ac Med, Dept Biochem, Safat 13110, Kuwait
Titolo Testata:
JOURNAL OF DAIRY RESEARCH
fascicolo: 3, volume: 68, anno: 2001,
pagine: 463 - 469
SICI:
0022-0299(200108)68:3<463:TEATDI>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Soggetto:
SELENIUM; MOTHERS;
Keywords:
trace element; milk proteins; camel milk; cow milk; human milk;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
18
Recensione:
Indirizzi per estratti:
Indirizzo: Al-Awadi, FM Kuwait Univ, Hlth Sci Ctr, Fac Med, Dept Biochem, POB 24923, Safat 13110, Kuwait Kuwait Univ POB 24923 Safat Kuwait 13110 Safat 13110, Kuwait
Citazione:
F.M. Al-Awadi e T.S. Srikumar, "Trace elements and their distribution in protein fractions of camel milk in comparison to other commonly consumed milks", J DAIRY RES, 68(3), 2001, pp. 463-469

Abstract

Studies on camels' milk., whether with respect to concentration or bioavailability of trace elements from this milk. are limited and warrant further investigation. The object of this study was to analyse the concentration and distribution of zinc. copper, selenium. manganese and iron in camel milk compared to those in human milk. cows' milk and infant formula under similar experimental conditions. Camels' milk and cows' milk were collected from local farms, human milk samples were obtained from healthy donors in Kuwaitand infant formula was purchased locally. Milk fractionation was performedby ultra-centrifugation and gel-column chromatography. The concentration of trace elements was analysed by atomic absorption spectrometry and that ofprotein was determined spectrophotometrically. The concentration of manganese and iron in camels' milk was remarkably higher (7-20-fold and 4-10-fold, respectively) than in human milk. cows' milk and infant formula. The zinccontent of camels' milk was higher than that of human milk but slightly lower than in cows' milk and infant formula. The concentration of copper in camels' milk was similar to that of cows' milk but lower than in human milk and infant formula. The selenium content of camels' milk was comparable to those of other types of milk. Approximately 50-80% of zinc, copper and manganese in camels' milk were associated with the casein fraction, similar to that of cows' milk. The majority of selenium and iron in camels' milk was in association with the low molecular weight fraction. It is recommended that camels' milk be considered as a potential source of manganese, selenium and iron, perhaps not only for infants, but also for other groups suspected of mild deficiency of these elements. Further investigations are required to confirm this proposal.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 16/07/20 alle ore 19:59:30