| 玉米谷胱甘肽提取技术的研究 |
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| 引用本文： | 张艳荣,陈丽娜,刘婷婷,王大为.玉米谷胱甘肽提取技术的研究[J].食品科学,2007,28(7):232-236. |
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| 作者姓名： | 张艳荣 陈丽娜 刘婷婷 王大为 |
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| 作者单位： | 吉林农业大学食品科学与工程学院； 吉林农业大学食品科学与工程学院 吉林长春130118； 吉林长春130118； |
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| 基金项目： | 吉林省重大科技攻关专项（200302-06） |
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| 摘 要： | 以淀粉加工副产物玉米胚为原料,经过超临界流体萃取脱脂及微波破壁处理后,采用热水浸提法提取谷胱甘肽,通过正交试验确定超临界流体萃取脱脂工艺条件为压力25MPa,萃取温度40℃,时间120min,CO2流量20L/h。在此条件下脂类物质萃取率57.03%,玉米胚粕含脂率0.72%。最佳热水浸提工艺条件为固液比1:20(g/ml)、浸提温度90℃、浸提液pH值3.0、浸提时间20min。在此条件下谷胱甘肽提取量为104mg/100g玉米胚。
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| 关 键 词： | 玉米胚 谷胱甘肽 超临界流体萃取 热水浸提 |
| 文章编号： | 1002-6630（2007）07-0232-05 |
| 修稿时间： | 2007-06-10 |
Study on Extraction Technology of Corn Glutathione |
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| ZHANG Yan-rong,CHEN Li-na,LIU Ting-ting,WANG Da-wei.Study on Extraction Technology of Corn Glutathione[J].Food Science,2007,28(7):232-236. |
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| Authors: | ZHANG Yan-rong CHEN Li-na LIU Ting-ting WANG Da-wei |
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| Affiliation: | College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China |
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| Abstract: | With corn embryo being coproduct in corn starch production as material, glutathione (GSH) was extracted through hot water extraction after supercritical CO2 fluid extraction and microwave treatment. The results showed that optimum conditions of supercritical CO2 fluid extraction are pressure 25 MPa, temperature 40 ℃, time 120 min, CO2 flow 20 L/g; On these conditions the extraction rate of fat is 57.03%, and fat concent of embryo dregs is 0.72%. The optimum conditions of hot water extraction are solid:liquid 1:20, temperature 90 ℃, pH3.0, time 20 min. On these conditions GSH yield is 104 mg/100 g corn embryo. |
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| Keywords: | corn embryo glutathione supercritical fluid extraction hot water extraction |
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