Screening of Natural SO2 Substitutes in Pineapple Wine and Preliminary Study on Its Antioxidant Mechanism
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Abstract:
27 kinds of Chinese herbal medicine with the potential ability of antibacterial and antioxidant were selected as the research objects. The Chinese herbal medicine with the ability of replacing the antibacterial and antioxidant of SO2 were determined through the antibacterial and antioxidant experiments. The oxidation-reduction potential and polyphones polymerization of the pineapple wine were investigated after adding strong antioxidant and antibacterial Chinese herbal medicine in the study. The results showed that Semen zizyphi spinosae had the best antibacterial and antioxidant properties in the pineapple wine, which was selected as the substitute of SO2 through the antibacterial and antioxidant experiments with the suitable addition amount of 2.5 mL/100 mL. The effectsof Semen zizyphi spinosae on the brewing strain Saccharomyces cerevisiae DJ02 was lesser than SO2. Compared with the control group, the oxidation-reduction potential of pineapple wine showed a gradual decrease in fermentation 1~5 d. Thereby the oxidation degree of pineapple wine was reduced. Besides, the polyphenol polymerization in the pineapple wine was decreased after adding Semen zizyphi spinosae, and the oxidation rate was slowed down accordingly.
