Composition Profile
Verified · 2026-09-26- 01Caffeine4.98 %Dry-leaf sample
- 02Volatile aroma compositionSixty-nine aroma components were detected. Alcohols had the greatest number and abundance, with 22 alcohol compounds accounting for 31.69% of total volatiles.Dry-leaf sample
- 03Physicochemical and aroma changes driven by menhuang durationWhen total menhuang time increased from 140 to 220 min, tea polyphenols decreased from 23.41% to 20.28%, catechins from 17.03% to 15.64% and caffeine from 4.68% to 3.84%; soluble sugars increased from 2.97% to 3.27% and water extract from 33.42% to 38.33%, while the aroma direction shifted from clean/fresh toward sweeter notes.Other sample
Direct quantitative data cover caffeine, catechins, free amino acids, tea pigments and aroma composition. Menhuang duration also significantly changes major taste compounds and the aromatic direction.

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