天然产物研究与开发 ›› 2015, Vol. 27 ›› Issue (5): 909-914.doi: 10.16333/j.1001-6880.2015.05.031

• 开发研究 • 上一篇    下一篇

火棘果黄酮对油脂的抗氧化活性

王晓静,陈莉华*,黄玉龙   

  1. 吉首大学化学化工学院,吉首 416000
  • 出版日期:2015-05-30 发布日期:2015-06-05

Antioxidant Activity of Flavonoids from Pyracantha fortuneana to Oils and Fats

WANG Xiao-jing,CHEN Li-hua*, HUANG Yu-long   

  1. College of Chemistry and Chemical Engineering,Jishou University,Jishou 416000,China
  • Online:2015-05-30 Published:2015-06-05

摘要: 超声波辅助乙醇提取火棘果中的总黄酮(PFF)并用D-101大孔树脂纯化,分别得到粗提物PFF1和纯化物PFF2,以芦丁为对照品测定含量。考察了PFF1、PFF2对油脂的抗氧化活性及抗酸败水解能力并与VE作比较。结果表明,在实验条件下,PFF1、PFF2的黄酮含量分别为2.25、3.49 g/L,火棘果黄酮提取率为5.11%,纯度为22.84%。当黄酮质量浓度为0.258 g/L时,PFF1对菜籽油、橄榄油、鹅油、鸡油、猪油、牛油的保护率分别为27.56%、19.66%、16.12%、24.05%、24.06%、20.61%,PFF2对这6种油脂的保护率分别为46.17%、38.15%、37.15%、42.31%、32.78%、28.43%;PFF1使上述油脂的酸价降低值(ΔAV)分别为0.68、0.56、0.44、0.8、0.48、0.28 mg/g,PFF2的分别为1.0、0.6、0.56、0.96、0.52、0.36 mg/g,在0.04~0.26 g/L浓度范围内,PFF1及PFF2对油脂的抗氧化作用及抗酸败水解能力随黄酮质量浓度增大而增强。在50~80 ℃温度范围内,PFF1及PFF2对油脂的抗氧化作用随着烘箱强化温度的升高而逐渐增大。相同条件下对油脂的抗氧化效果PFF2强于PFF1,但均比VE弱。

关键词: 火棘果, 黄酮, 过氧化值, 酸价, 抗氧化活性

Abstract: The flavonoids were extracted from Pyracantha fortuneana with ultrasonic-assisted ethanol extraction and purified through D-101 macroporous resin to afford crude extracts (PFF1) and purified flavonoids (PFF2),respectively.The content of PFF1 and PFF2 were determined using rutin as index.The antioxidant activity of PFF1 and PFF2 were investigated by testing the peroxidation and acid value of oils and fats,and compared with VE.The results showed that under the experiment conditions,the flavonoids mass concentration of PFF1 and PFF2 were 2.25 g/L and 3.49 g/L,respectively.The extraction rate was 5.11% and the purity rate was 22.84%.At the flavonoids mass concentration of 0.258 g/L,the protection rate to oils and fats from rapeseed,olive,goose,chicken,pork suet,beef tallow were 27.56%,19.66%,16.12%,24.05%,24.06%,20.61% for PFF1,and 46.17%,38.15%,37.15%,42.31%,32.78%,28.43% for PFF2,respectively.ΔAVof oils and fats were 0.68,0.56,0.44,0.8,0.48,0.28 mg/g for PFF1,and 1.0,0.6,0.56,0-96,0.52,0.36 mg/g for PFF2,respectively.In the range of 0.040.26 g/L,the antioxidant effect of PFF1 and PFF2 increased with the flavonoids mass concentration increasing.In the range of 50-80 ℃,the antioxidant effects of PFF1 and PFF2 increased with the temperature rising.Under the same concentration,the antioxidant activity of PFF2 was higher than that of PFF1,but lower than that of VE.

Key words: Pyracantha fortuneana, flavonoids, peroxide value, acid value, antioxidant activity

中图分类号: 

R284.2 R285.2