Preparation of Microcapsules Containing Extractants and the Application of the Microcapsules to the Extractive Fermentation of Lactic Acid
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- Kondo Kazuo
- Department of Chemical Engineering and Materials Science, Doshisha University
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- Otono Taiyo
- Department of Chemical Engineering and Materials Science, Doshisha University
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- Matsumoto Michiaki
- Department of Chemical Engineering and Materials Science, Doshisha University
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説明
The extraction of lactic acid from an aqueous solution by microcapsules containing extractants was investigated in order to prevent the dissolution of the extractants in the aqueous solution. Microcapsules containing tri-n-octyl phosphine oxide (TOPO) and a mixture of tri-n-butyl phosphate (TBP) and tri-n-octylamine (TOA) showed high extractability at low pH, but low extractability at the optimum pH of the fermentation. Then, toxicity of these microcapsules to immobilized Lactobacillus rhamnosus was investigated. The microcapsules containing TOA-TBP showed high toxicity to the cells, on the other hand, the microcapsules containing TOPO slightly affected lactate production. The microcapsules containing TOPO were used in the extractive fermentation process by reasons of their lower toxicity to the microbes than those containing TOA-TBP. The extractive fermentation of lactic acid coupled with a column packed with the microcapsules was found to be very effective method from the point of view of cell growth.
収録刊行物
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 37 (1), 1-6, 2004
公益社団法人 化学工学会
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詳細情報 詳細情報について
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- CRID
- 1390001204569570432
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- NII論文ID
- 130000019657
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- NII書誌ID
- AA00709658
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- COI
- 1:CAS:528:DC%2BD2cXpvVGmuw%3D%3D
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- ISSN
- 18811299
- 00219592
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- NDL書誌ID
- 6819328
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- NDL
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- 使用不可