Effect of Cattle Breeds on Milk Composition and Technological Characteristics in China
| Autor: | X. L. Liu, Fan Wang, Tong Xiang Yang, Hongda Li, Quanyang Li |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
Buffalo Milk
animal diseases lcsh:Animal biochemistry System stability Biology Crossbreed Article fluids and secretions Animal science Casein Stability coefficient Buffer Capacity parasitic diseases Zeta Potential lcsh:QP501-801 lcsh:SF1-1100 Milk protein Rheological Property food and beverages Total dissolved solids Milk fat Animal Science and Zoology Composition (visual arts) lcsh:Animal culture Cattle Breed Food Science |
| Zdroj: | Asian-Australasian Journal of Animal Sciences, Vol 26, Iss 6, Pp 896-904 (2013) Asian-Australasian Journal of Animal Sciences |
| ISSN: | 1976-5517 1011-2367 |
| DOI: | 10.5713/ajas.2012.12677 |
| Popis: | Cattle breeds have a striking effect on milk, including milk composition and technological characteristics. This study aims to compare milk composition, acidification activity, viscosity, milk dispersion system stability and casein molecular weight among three buffalo breeds in China. The technological characteristics of milk produced by three cattle breeds of river buffalo (Murrah), crossbreed 1st generation (F1), crossbreed multiple generation (FH, H≥3) buffaloes were investigated. Cattle breeds showed evident effect on milk protein, fat and total solids content, but little effect on most of buffalo casein molecular weight. Milk fat, protein content and the viscosity of buffalo milk from river buffalo were lower than those of F1 and FH, so was the buffer capacity. The viscosity was negatively correlated to temperature and concentration. Results of stability coefficient showed that milk dispersion system had the best dynamic stability characteristics under pH 6.6 and 6 times dilution, while zeta potential of Murrah milk was slightly higher than that of hybrid offspring (F1, FH). SDS-PAGE results showed that buffalo αs-casein had a slightly faster mobility than standard αs-casein; while buffalo β-casein showed a slightly slower mobility than standard β-casein. There is no clear differences in molecular weight of αs-, β-, and κ-casein among Murrah, F1 and FH. |
| Databáze: | OpenAIRE |
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