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Food irradiation or chemical fumigation can be used to ensure the hygienic quality of teas. The comparative effects of gamma irradiation (5 and 10kGy) and fumigation (MeBr and PH 3 ) were investigated on the amino acids and sugar contents of Camellia sinensis (green, black and oolong teas) during storage (15±12°C). The major amino acids found in teas were theanine and glutamic acid. Irradiation...
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