江汉大学学报(自然科学版) ›› 2013, Vol. 41 ›› Issue (6): 95-99.

• 生命科学 • 上一篇    下一篇

荸荠皮中总黄酮物质的提取及其抑菌作用研究

许国权a,郭艳华b   

  1. 江汉大学 a. 生命科学学院; b. 化学与环境工程学院,湖北 武汉 430056
  • 出版日期:2013-12-12 发布日期:2014-01-09
  • 作者简介:许国权 (1974—),男,高级实验师,研究方向:天然物质提取研究。
  • 基金资助:
    武汉市科技攻关计划项目 (201150699189-13)

Extraction and Antibacterial Effect of Flavonoids from Water Chestnut Peel

XU Guo-quana,GUO Yan-huab   

  1. a.School of Life Sciences;b. School of Chemistry and Environmental Engineering,Jianghan University, Wuhan 430056,Hubei,China
  • Online:2013-12-12 Published:2014-01-09

摘要: 研究了提取溶剂、乙酸浓度、提取温度、提取时间、料液比对荸荠皮中总黄酮物质的提取得率的影响,通过正交试验确定从荸荠皮中提取总黄酮的适宜提取工艺条件为:乙酸浓度为75%,提取温度为 70 ℃、料液比(g/mL)为 1∶14,提取时间为 6 h,在此条件下,从荸荠皮中提取到总黄酮的得率为1. 56%。分别测试了提取物总黄酮对大肠埃希菌、枯草杆菌、金黄色葡萄球菌、铜绿假单胞菌4种细菌的抑菌作用。结果表明:荸荠皮提取物对上述4种细菌有很强的抑菌作用,但总黄酮含量的多少与抑菌效果 没有明显相关性,可以推断在提取物中起抑菌作用的物质不仅是黄酮类;50~80 ℃内,不同温度提取所获得的提取物对4种细菌的抑菌作用也不呈线性关系。

关键词: 荸荠皮, 总黄酮, 提取, 抑菌作用

Abstract: The effect of extraction solvent,acetic acid concentration,extraction temperature,time and solid-liquid ratio(g/mL)on the extraction rate of flavonoids from the water chestnut peel was studied. The optimized parameters was obstained with the single factor and orthogonal design. The results showed that 75% acetic acid concentration,70℃,solid-liquid ratio 1∶14 and 6 h,the extraction rate of flavonoids reached 1. 56%. The antibacterial effect of flavonoids in the water chestnut peel to Escherichia coli,Bacillus subtilis,Staphyloccocus aureus and Pseudomonas aeruginosa were measured. The results showed that extracts of the water chestnut peel had the antibacterial effect to the 4 species germs,but the amount of flavonoids content has no obvious correlation with the antibacterial effect,It can be inferred that the antibacterial substance in extractive is not only flavonoids. The extracting flavonoids and antibacterial effect to 4 species germs had no linear relationship when the flavonoids extracted on different temperature ranged from 50 ℃ to 80 ℃.

Key words: water chestnut peel, flavonoids, extraction, antibacterial effect

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