野生和栽培银丝菇子实体抗氧化活性比较

Comparison on Antioxidant Activity of Wild and Cultivated Volvariella bombycina

为进一步开发利用银丝菇,以野生和栽培银丝菇子实体为试材,研究了不同浓度乙醇提取液对DPPH自由基的清除作用和对铁氰化钾的还原能力。结果表明:随着乙醇提取物浓度的提高,银丝菇子实体乙醇提取液对DPPH自由基清除能力和对铁氰化钾的还原能力不断增强,且栽培银丝菇高于野生银丝菇和香菇。当子实体生药浓度为3mg·mL-1时,野生银丝菇和栽培银丝菇对DPPH自由基清除率最高,分别为22.51%和17.54%。在提取物浓度为10mg·mL-1时,野生银丝菇、栽培银丝菇和香菇的还原力分别为0.416、0.475和0.513。

For the further development and utilization of Vol＇oariella bornbycina, taking wild and cultivated Volvariella bombycina as experimental materials,scavenging effect and reducing power of potassium ferricya- nide were determined with different concentrations of ethanol extract on DPPH free radicals. The results showed that with the increasing of ethanol extracts concentration, scavenging effect and reducing power of po- tassium ferricyanide increased,and cultivated Volvariella bombycina was higher than wild Volvariella bombyci- na and Lentinus edodes. When crude herbal dose of fruiting body was 3 mg. mL-1 ,DPPH scavenging effect of ethanol extract of wild and cultivated Volvariella bombycina of ethanol extract of wild and cultivated was at maximum by 22.51 and 17.54 . When crude herbal dose of fruiting body was 10 mg mL-1 , Volvariella bombycina and Lentinus edodes was at maximum by 0. 416,0. 475 and 0. 513.