| 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： | 贾士儒,冈部满康. 提高供氧能力对土曲霉生产衣康酸的影响[J]. 天津科技大学学报, 1996, 0(1) |
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| 作者姓名： | 贾士儒 冈部满康 |
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| 作者单位： | 天津轻工业学院食品工程系，日本静冈大学农学部应用生物化学科 |
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| 摘 要： | 研究了提高供氧能力对土曲霉ＩＦＯ－６３６５分批发酵生产衣康醚产酸能力的影响。当通风比为０．５，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比叶轮末端线速度为９４．２ｃｍ／ｓ和７８．５ｃｍ／ｓ高出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％，但在高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，对发酵产酸呈抑制作用。
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| 关 键 词： | 衣康酸，土曲霉，发酵，氧载体，正十二烷 |
EFFECTS OF OXYGEN-VECTORS ON THE ITACONIC ACID FERMENTATION |
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| Jia Shiru. EFFECTS OF OXYGEN-VECTORS ON THE ITACONIC ACID FERMENTATION[J]. Journal of Tianjin University of Science & Technology, 1996, 0(1) |
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| Authors: | Jia Shiru |
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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 fixed aeration rate of 0. 5 vvm, productivity of itacomic acid was 1. 28 and 3.0 times higher than those in the impeller tip speed of 94. 2 and 78. 5 cm/s, respectively. When impeller tip speed was 78. 5 cm/s, itaconic acid concentr concentration was increased 14% than the contral, by addition of the Oxygen-vectors-n-dodecane 5%. In hight impeller tip speed though n-dodecane can promote A. terreus growth, but it inhibit itaconic acid produce. |
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| Keywords: | Itaconic acid Fermentation Oxygen-vectors Aspergillus terreus n-dodecane |
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