秦皮不同溶剂提取物总酚含量及抗氧化活性OA北大核心CSTPCD
Total phenol and antioxidant activities of cortex fraxini extracts by different extracting solvents
分别以水、加0.5％纤维素酶水和50％乙醇溶液为提取剂,超声辅助提取秦皮,采用Folin - Ciocalteu法测定提取物中总酚含量,同时利用清除DPPH·和羟自由基(·OH)法评价秦皮提取物的抗氧化活性.结果表明,不同溶剂水、50％乙醇和加0.5％纤维素酶水的秦皮提取物中总酚含量分别41.68mg/g、49.32mg/g和51.51mg/g;对DPPH·的半清除率(IC50)分别为0.29mL、0.22mL和0.17mL；对·OH的半清除率(…查看全部>>
In this paper, ultrasound - assisted extraction was used to extract activated components from cortex fraxini u-sing water, 0.5% cellulose solution and 50% ethanol as extracting agents. The total contents of phenol from the extracts was determined by Folin - Ciocalteu method and antioxidant activities of cortex fraxini extracts was evaluated by cleaning the DPPH and OH. The results indicate that the total contents of phenol in the extracts were 41.68mg/g、 49.…查看全部>>
赵二劳;姚宇霞;史淑美;武宇芳;白建华
忻州师范学院化学系,山西忻州034000忻州师范学院化学系,山西忻州034000忻州师范学院化学系,山西忻州034000忻州师范学院化学系,山西忻州034000忻州师范学院化学系,山西忻州034000
轻工纺织
秦皮超声辅助提取总酚抗氧化活性
cortex fraxini ultrasonic - assisted extraction total phenol antioxidant activities
《中国食品添加剂》 2012 (3)
116-119,4
山西省高校科技开发研究项目(200611041).
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