| 一株银杏内生真菌红色素稳定性的研究 |
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| 引用本文： | 陈立立,洪巧妹,邱敏,张建,陈海敏.一株银杏内生真菌红色素稳定性的研究[J].中国食品添加剂,2011(3). |
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| 作者姓名： | 陈立立 洪巧妹 邱敏 张建 陈海敏 |
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| 作者单位： | 浙江理工大学生命科学学院,杭州,310018 |
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| 基金项目： | 浙江省大学生科技创新项目“银杏内生菌SX01红色素的分离提纯及毒理学初步研究”(2009R406023) 浙江省生物科学实验教学示范中心建设项目 |
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| 摘 要： | 真菌色素是一个极具应用潜力的食用色素来源。一株从银杏枝条分离的内生真菌SX01，能产生大量的红色素，经鉴定该菌属于产紫青霉（Penicillium purpurogenum）。该菌在PDA液体培养基中静置培养后，经过离心、过滤可得到红色素，该色素为水溶性色素。通过分析红色素特征吸光值的变化，研究了光照、pH、温度、金属离子对该红色素稳定性的影响。结果表明，色素溶液对温度和光照较为敏感，色素在温度〈60℃的稳定性较高，但当温度上升至80℃以上后，色素稳定性较差。色素对光照较为敏感，长时间光照可以使色素色价大幅度下降，影响色素品质。该色素对pH是稳定的，色素提取液在pH10时色价甚至有所增高。金属离子对该色素稳定性影响较小，Zn2+有一定的增色效果，Cu2+、Al3几乎无影响，Fe2+和Fe3+对其有不良影响。
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| 关 键 词： | 内生真菌 红色素 稳定性 银杏 |
Study on the stability of red pigments produced by an ednophytic fungus from Ginkgo biloba L |
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| CHEN Li-li,HONG Qiao-mei,QIU Min,ZHANG Jian,CHEN Hai-min.Study on the stability of red pigments produced by an ednophytic fungus from Ginkgo biloba L[J].China Food Additives,2011(3). |
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| Authors: | CHEN Li-li HONG Qiao-mei QIU Min ZHANG Jian CHEN Hai-min |
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| Affiliation: | CHEN Li-li,HONG Qiao-mei,QIU Min,ZHANG Jian,CHEN Hai-min*(College of Life Science,Zhejiang SCI-TECH University,Hangzhou 310018) |
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| Abstract: | Fungal pigments are a potential resource for natural food colorant.A strain of ednophytic fungus Penicillium purpurogenum SX01,which is able to produce abundant soluble red pigments was isolated from the twigs of Ginkgo biloba L.This strain was cultured with PDA liquid medium,its extracellular water-soluble red pinments were extracted by Centrifugation and filtration.The stability of this pigments under different conditions such as,illumination,pH,temperature and mental ion were studied by analyzing its spe... |
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| Keywords: | ednophytic fungus red pigments stability Ginkgo biloba L |
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