Optimization Research into the Ultrasonic-assisted Extraction to Separate Polyphenol from Green Tea Waste
نویسندگان
چکیده
منابع مشابه
Green tea polyphenol sensing
Green tea polyphenols have emerged over the past two decades as an important dietary factor for health promotion. There is considerable evidence that tea polyphenols, in particular (-)-epigallocatechin-3-gallate (EGCG) inhibit carcinogenesis. However, the mechanisms for the cancer-preventive activity of EGCG are not completely characterized and many features remain to be elucidated. Recently we...
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Response surface methodology (RSM) has been used to optimize the extraction conditions of antioxidants with relatively low caffeine content from green tea by using ultrasonic extraction. The predicted optimal conditions for the highest antioxidant activity and minimum caffeine level were found at 19.7% ethanol, 26.4 min extraction time, and 24.0 ° C extraction temperature. In the predicted opti...
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Restrictions on the use of synthetic antioxidant such as butylated hydroxyanisole (BHA) and butylated hydroxytoluene (BHT) are being imposed because of their carcinogecity. In this investigation optimization of phenolic extraction process frome methanolic (80%) extract (v/v) of elaegnus angustifolia through Response Surface Methodology by fulin cio- calteu is performrd for op...
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ژورنال
عنوان ژورنال: ASEAN Journal of Chemical Engineering
سال: 2013
ISSN: 2655-5409,1655-4418
DOI: 10.22146/ajche.49743