枇杷花抗氧化活性物质的提取工艺研究OA

In order to improve the comprehensive utilization value of loquat flowers,this article used the inhibition rate of NO generation as an in-dicator to extract and study the antioxidant activity in loquat flowers.Through experiments on single factors such as extraction solvent,tempera-ture,time,and solid-liquid ratio,orthogonal experiments were conducted on the extraction temperature,time,and solid-liquid ratio.The opti-mal conditions for extracting active substances were obtained as follows:extraction temperature 50℃,time 60 minutes,The solid-liquid ratio is 1∶30(g∶mL),assisted by ultrasound,and the inhibition rate of NO generation is 69.87%.The obtained extract has the best antioxidant activity.