Quality and Antioxidant Activity of Yellow Peach Beer
To explore the production process of yellow peach beer,we prepared yellow peach beer by mixed fermentation of yellow peach juice and beer made in our laboratory.The physicochemical properties,mineral element content,and antioxidant activity of yellow peach beer were determined.The results showed that the beer added with an appropriate amount of yellow peach juice presented improved appearance,aroma,and mouthfeel.After mixed fermentation with yellow peach juice,the beer showcased increased content of K,Na,Mg,Fe,and diacetyl and no significant change in the alcohol content.The chromaticity and pH of the beer increased with the increase in the addition amount of yellow peach juice.Furthermore,the addition of yellow peach juice enhanced the scavenging activities of the beer against O2-·,ABTS,DPPH,and·OH free radicals and increased the total polyphenol content,which suggested improved antioxidant activity.In conclusion,adding an appropriate amount of yellow peach juice for mixed fermentation can improve the quality,enrich the nutrient,and enhance the aroma and antioxidant activity of beer.
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