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- W2359168162 abstract "Caffeine is extracted from the tea by microwave method. The results of the Plackett-Burman Design show that the main factors, which affect caffeine yield, are the size of the tea powder, the solvent volume and the precipitant. The following single-factor experiments show the best conditions for caffeine extraction are: 10g tea powder through 20 mesh sieve, 4.2:1 of 95% alcohol-to-water volume ratio, 115mL of the solvent volume, the 170s of the extraction time and sodium acetate as the precipitant. Under the conditions, the caffeine yield maximizes 3.178±0.004%, which benefits the application of the experiment in university chemistry experiments teaching." @default.
- W2359168162 created "2016-06-24" @default.
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- W2359168162 date "2013-01-01" @default.
- W2359168162 modified "2023-09-26" @default.
- W2359168162 title "Improvement of the Caffeine Extraction Conditions from Tea by Microwave" @default.
- W2359168162 hasPublicationYear "2013" @default.
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