| 姜油树脂的超临界CO_2萃取条件及其抑菌活性 |
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| 引用本文： | 张鲁明,王龙厚,陈雪香,蔺万煌.姜油树脂的超临界CO_2萃取条件及其抑菌活性[J].作物研究,2011,25(2):149-152. |
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| 作者姓名： | 张鲁明 王龙厚 陈雪香 蔺万煌 |
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| 作者单位： | 湖南农业大学生物科学技术学院,长沙,410128 |
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| 基金项目： | 湖南省大学生创新性实验计划项目 |
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| 摘 要： | 采用正交试验,优化了超临界CO2萃取姜油树脂的工艺条件,在压力22 Mpa,时间15 min,温度50℃,萃取率可达5.38%。抑菌试验结果表明,姜油树脂对大肠杆菌、沙门氏菌、痢疾志贺菌、苏云金杆菌和金黄色葡萄球菌均有一定的抑制作用,抑菌最低质量浓度为0.5～1.0 mg/mL。在不同温度或不同时间紫外光照条件下,姜油树脂仍有一定的抑菌作用,表明其具有一定的光、热稳定性。
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| 关 键 词： | 姜油树脂 超临界CO2萃取 抑菌活性 稳定性 |
Ginger Oleoresins Extraction with SFE-CO2 and Its Antimicrobial Activity |
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| ZHANG Lu-ming,WANG Long-hou,CHEN Xue-xiang,LIN Wan-huang.Ginger Oleoresins Extraction with SFE-CO2 and Its Antimicrobial Activity[J].Crop Research,2011,25(2):149-152. |
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| Authors: | ZHANG Lu-ming WANG Long-hou CHEN Xue-xiang LIN Wan-huang |
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| Affiliation: | ZHANG Lu-ming,WANG Long-hou,CHEN Xue-xiang,LIN Wan-huang*(College of Bioscience and Biotechnology,Hunan Agricultural University,Changsha,Hunan 410128,China) |
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| Abstract: | Using orthogonal test method,the optimum supercritical CO2 fluid extraction conditions of ginger oleoresin were 22 MPa pressure,time 15 min,temperature 50℃,and the highest extraction rate reached 5.38%.The bacteriostatic tests showed that ginger oil has certain inhibitory effect on Escherichia coli,Salmonella S.enterica,Shigella dysenteriae,Bacillus thuringiensis and Staphyloccocus aureus with the mnimal inhibitory concentrations 0.5 ~1.0 mg/mL.Further research showed that the ginger oil still had certain inhibitory effect under different temperature or ultraviolet radiation.It is suggested the ginger oil has a certain thermal stability and photostability respectively. |
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| Keywords: | Ginger oleoresins SFE-CO2 Antimicrobial activity Stability |
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