Study and Application of Polyphenol Compounds in Rose Wastewater
The polyphenol intermediate of Rosa Damascena Mill.wastewater was prepared by organic solvent extraction.The content of polyphenol in the intermediate was 3.7 times of that in the wastewater.Twelve polyphenol compounds(anthocyanin,gallic acid,hypericin,quercetin,etc)were identified by UPLC-QTRAP.Among them,anthocyanins made up 20% of the total intermediates and were the most common compound.In vitro experiments showed that the ability of polyphenol intermediates to eluate ABTS and DPPH intermediates was as strong as that of VC,and it had good antioxidant activity.Polyphenol tablets and beverages prepared from polyphenol intermediates showed antioxidant activity of different abilities,and polyphenol tablets also had the activity of inhibiting tyrosinase.The results can provide a basis for further developing the wastewater produced in the production of rose essential oil as a functional food ingredient.
Rosa Damascena Mill.rose wastewaterpolyphenolUPLC-QTRAPantioxidant
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