期刊
FOOD SCIENCE AND TECHNOLOGY INTERNATIONAL
卷 21, 期 3, 页码 232-241出版社
SAGE PUBLICATIONS LTD
DOI: 10.1177/1082013214528188
关键词
Sonication; ultraviolet treatment; thermal treatment; Chokanan mango; juice; antioxidant activity
资金
- University of Malaya [PV086/2012A]
The growing demand for fresh-like food products has encouraged the development of hurdle technology of non-thermal processing. In this study, freshly squeezed Chokanan mango juice was treated by paired combinations of sonication (for 15 and 30min at 25?, 40kHz frequency) and UV-C treatment (for 15 and 30min at 25?). Selected physicochemical properties, antioxidant activities, microbial inactivation and other quality parameters of combined treated juice were compared to conventional thermal treatment (at 90? for 60s). After thermal and combined treatment, no significant changes occurred in physicochemical properties. A significant increase in extractability of carotenoids (15%), polyphenols (37%), flavonoids (35%) and enhancement in antioxidant capacity was observed after combined treatment. Thermal and combined treatment exhibited significant reduction in microbial load. Results obtained support the use of sonication and UV-C in a hurdle technology to improve the quality of Chokanan mango juice along with safety standards.
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