Optimization of far-infrared vacuum drying conditions for Miang leaves (Camellia sinensis var. assamica) using response surface methodology
作者： Sathira Hirun , Jeong-Hwa Choi , Jutatip Ayarungsaritkul , Chonnipa Pawsaut , Chanutchamon Sutthiwanjampa
DOI: 10.1007/S10068-015-0061-8
关键词: Central composite design 、 Catechin 、 Response surface methodology 、 Epigallocatechin gallate 、 Botany 、 Epicatechin gallate 、 Food science 、 Chemistry 、 Food processing 、 Camellia sinensis 、 Far infrared
摘要: Far-infrared (FIR) vacuum is an advanced drying technique that has recently been applied in food processing. Optimal conditions for processing tea from Miang leaves using FIR were investigated. Response surface methodology with a central composite design was used to design, analyze, and predict the optimal time temperature drying, taking into account physicochemical properties of leaves. When increased 50 65°C 60 120 min, amount epicatechin, epicatechin gallate, epigallocatechin total catechins significantly (p 0.05) influenced by temperature, compared controls. Drying min are recommended optimization drying.
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