| 提高供氧能力对土曲霉生产衣康酸的影响 |
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| 引用本文： | 刘德宗,李琰,魏晓琨,尹鸥,牛兰堂,宓毅梅. 提高供氧能力对土曲霉生产衣康酸的影响[J]. 齐齐哈尔大学学报(自然科学版), 1996, 0(3) |
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| 作者姓名： | 刘德宗 李琰 魏晓琨 尹鸥 牛兰堂 宓毅梅 |
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| 作者单位： | 齐齐哈尔建华区防疫站，齐齐哈尔轻工学院，齐齐哈尔广播电视大学，上海新扬兽药厂 |
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| 摘 要： | 本文研究了供氧能力对土曲霉ＩＦＯ－６３６５分批发酵生产衣康酸能力的影响。当通风比为０．５Ｖ．Ｖ．ｍ，搅拌叶轮末端线速度为１２５．７ｃｍ／ｓ时的最大衣康酸发酵产率分别是叶轮末端线速度为９４．２ｃｍ／ｓ和７８．５ｃｍ／ｓ的１．２８倍和３倍；当添加氧载体──正十二烷，叶轮末端线速度为７８．５ｃｍ／ｓ时，与对照相比，可提高产酸１４％，但在更高的叶轮末端线速度条件下，加入正十二烷，只能促进菌体的生长，对发酵产酸是抑制作用。
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| 关 键 词： | 衣康酸，土曲霉，发酵，氧载体，正十二烷 |
Effects of Oxygin-Vectors on Itaconic Acid Fermentation |
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| Liu Dezhong, Li Yan, Wei Xiaokun, Yin Ou. Effects of Oxygin-Vectors on Itaconic Acid Fermentation[J]. Journal of Qiqihar University(Natural Science Edition), 1996, 0(3) |
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| Authors: | Liu Dezhong Li Yan Wei Xiaokun Yin Ou |
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| Affiliation: | Liu Dezhong; Li Yan; Wei Xiaokun; Yin Ou(Qiqihar Epidemic Prevention in Qiqihar City) (Qiqihar LightIlndustry Institurte)Nui Langtang; Mi Yimei(Qiqhar Radio and TV vniversity) (Shanghai Xinyang Animal Medicine Factory) |
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| Abstract: | Effect of aeration rate and impeller tip speed on itaconic acid production was investigated in a batch culture of Aspergillus terreus IFO-6365. when impeller tip speed was 125. 7cm/s at a aeration rate of 0. 5vvm, produetivity of itaconic acid was 1. 28 and 3. 0times larger than those at the impeller tip speed of 94. 2 and 78. 5cm/s, respectively. When impiller tip speed was 78. 5cm/s. itaconic acid concentration was increased 14% than the control by addition of the Orygen-vectorl-n-dodecane 5 %. In higber impeller speed n-dodecane can promote A. terreus growth, but it inhibit itaconic acid produce. |
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| Keywords: | Itaconic acid Aspergillus terreus Fermentation Oxygen-vectors n-dodecane |
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