This invention discloses a distillery residue extract and manufacturing method thereof, which utilizes acid and base to hydrolyze the distillery residue and uses ethanol to further purify and separate, so as to obtain distillery residue extract, wherein the distillery residue extract contains phenolic acid functional ingredients like ferulic acid, etc. This polyphenolic compound has antioxidant capacity, whitening efficacy due to inhibition of tyrosinase, and can be used as beauty care product composition.本發明揭露一種酒糟萃取物及其製造方法,其係利用酸鹼解水解後,再經由乙醇純化分離,以獲得酒糟萃取物,其中酒糟萃取物包含阿魏酸等多種酚酸機能性成分。此多酚類化合物具有抗氧化能力、抑制酪胺酸酶的美白功效,可應用於美容保養品組合物。S11~S17‧‧‧步驟
