Study of the extraction of the flavonol from rose petals and their eliminating capacity of the·OH
In this paper, the approach of microwave is adopted to extract the flavonol from roses with large petals and small ones as well as make available their respective content of flavone: 71.4736mg/g and 71.0636mg/g, with the RSD(n=9) of 0.5972% and 0.5852% respectively. The Fe2+-H2O2-Rhodamine B analyzing system is also thereby applied to study the eliminating capacities of the ·OH of the two petals' extract, and the result show that the two varieties of extract both have a strong eliminating capacity of the ·OH.