食品科学 ›› 2011, Vol. 32 ›› Issue (8): 155-158.doi: 10.7506/spkx1002-6630-201108035

• 工艺技术 • 上一篇    下一篇

玉竹挥发油超临界CO2萃取条件及抑菌活性研究

赵秀红1,曾 洁2,高海燕2,孙希云3,郑煜焱3   

  1. 1.沈阳师范大学工程技术学院 2.河南科技学院食品学院 3.沈阳农业大学食品学院
  • 出版日期:2011-04-25 发布日期:2011-04-12

Supercritical CO2 Extraction and Antimicrobial Activity Evaluation of Polygonatum odoratum Essential Oil

ZHAO Xiu-hong1,ZENG Jie2,GAO Hai-yan2,SUN Xi-yun3,ZHENG Yu-yan3   

  1. 1. College of Engineering and Technology, Shenyang Normal University, Shenyang 110034, China; 2. School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China; 3. College of Food Science, Shenyang Agricultural University, Shenyang 110866, China
  • Online:2011-04-25 Published:2011-04-12

摘要: 运用超临界流体CO2萃取技术提取玉竹挥发油。采用正交试验研究萃取温度、萃取压力、分离温度、分离压力因素对玉竹挥发油得率的影响,以得率为主要标准,确定最佳工艺条件。结果表明:萃取温度35℃、萃取压力30MPa、分离温度20℃、分离压力9MPa为最佳提取工艺。通过抑菌试验发现,玉竹挥发油对细菌、霉菌、酵母菌、放线菌均有一定的抑菌活性,并具有良好的热稳定性。

关键词: 玉竹, 挥发油, 超临界CO2萃取, 抑菌, 热稳定性

Abstract: In this study, supercritical fluid CO2 extraction was applied to extract polygonatum odoratum essential oil. The effects of extraction temperature and pressure as well as separation temperature and pressure on oil yield were investigated in single factor experiments and further, the extraction parameters were optimized using a 4-factor, 3-level, 9-run orthogonal array design based on oil yield. The results showed that extraction temperature of 35 ℃, extraction pressure of 30 MPa, separation temperature of 20 ℃ and separation pressure 9 MPa were found optimal for the extraction of polygonatum essential oil. The oil had certain inhibitory effect against bacteria, mold, yeast and actinomycetes and excellent thermostability.

Key words: Polygonatum odoratum, essential oil, supercritical fluid CO2 oxtraction, antimicrobial, thermostability

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