| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5767847 | Food Research International | 2017 | 6 Pages |
â¢Cyanidin and paeonidin were major aglycones of anthocyanins in purple sweet potato fermented alcoholic beverage.â¢Acylated anthocyanins degraded gradually with aging process.â¢Ester components increased significantly after aging.
Purple sweet potato was fermented into alcoholic beverage. By using LC-MS analysis, 12 types of anthocyanins were found in the purple sweet potato alcoholic beverage (PSPFAB); these were based on cyanidin and peonidin as aglycones. The anthocyanins in young PSPFAB mainly consisted of acylates. The acylated anthocyanins, however, degraded gradually with aging. Cyanidin 3-sophoroside-5-glucoside and peonidin 3-sophoroside-5-glucoside were found to be major anthocyanins in the PSPFAB after two years of aging. Moreover, 52 kinds of volatile components were detected in PSPFAB by GC-MS analysis. Alcohol and ester substances constituted a major proportion of these volatile components of PSPFAB. After two years of aging, levels of high-alcohols such as 1-pentanol remarkably decreased to below the detection limit, while the level of total esters increased significantly. Such variation of aromas enriched and improved the flavor of PSPFAB.
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