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Quality Characteristics of Fermented Mate(ILex paraguarensis) Leaf Tea  

Hong, Joo-Heon (Department of Food Science and Technology, Catholic University of Daegu)
Publication Information
Food Science and Preservation / v.17, no.4, 2010 , pp. 500-506 More about this Journal
Abstract
This study was conducted to compare and analyze the active and general components in mate leaf tea according to degree of fermentation conditions. The contents of tannic acid of hot water extracts from #1 (mate leaf), #2 (Mate leaf after fermentation and roasting), #3 (Mate leaf after Pan-firing), and #4 (Mate leaf after final drying) were decreased according to degree of fermentation conditions. Polyphenol contents of hot water extracts were approximate in #1 and #3, with measurements of 43.45 mg/g and 38.20 mg/g, respectively. Caffeine contents were 6.78 mg/g in #1, 4.30 mg/g in #3, and 3.65 mg/g in #4. In addition, the level of total free amino acid of #1 was higher than that of #2, #3, and #4. Lightness (L) and Redness (a) values increased and yellowness (b) values decreased after fermentation. When sensory tests were conducted, mate leaf tea after fermentation had pleasant taste.
Keywords
mate; fermented tea; caffeine; quality characteristics;
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Times Cited By KSCI : 8  (Citation Analysis)
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