期刊
LWT-FOOD SCIENCE AND TECHNOLOGY
卷 140, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.lwt.2020.110842
关键词
Camel beta-CN; Purification; Emulsifying properties; Antioxidant activity; Antimicrobial activity
资金
- Ministry of Higher Education and Scientific Research is a ministry of the Tunisian government
The research found that camel beta-casein has higher antioxidant and antifungal activities, as well as better emulsifying properties at higher pH values. The study also suggested that camel beta-casein has the potential value for application in agricultural and food industries.
Emulsifying properties and in vitro antioxidant and antimicrobial activities of the isolated camel and bovine beta-casein (beta-CN) were investigated and compared. Antioxidant assay showed that both beta-CN had significant reducing power, iron chelating and antiradical activities especially for camel beta-CN. Camel beta-CN also exhibited strong antifungal activities against Aspergillus tamarii and Aspergillus sclerotiorum. The maximum emulsion activity was achieved by both beta-CN samples at pH 7.0 and 9.0 than 5.0, with higher values for the camel beta-CN. This behavior was linked to the relative high electronegative charge and interfacial properties of proteins under conditions away from their isoelectric-point as confirmed by the zeta-potential and interfacial tension measurements. Further, the stability of emulsions decreased at pH 5.0 because of the beta-CN precipitation and aggregation despite its high surface hydrophobicity. This study concluded that the camel beta-CN has antimicrobial, antioxidant, and techno-functional properties in agricultural and food industries.
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