| 近临界水中水解鱼蛋白制备氨基酸 |
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| 引用本文： | 朱宪,朱超,赵亮,程洪斌.近临界水中水解鱼蛋白制备氨基酸[J].中国化学工程学报,2008,16(3):456-460. |
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| 作者姓名： | 朱宪 朱超 赵亮 程洪斌 |
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| 作者单位： | Department of Chemical Engineering, School of Environment and Chemical Engineering, Shanghai University, Shanghai 201800, China |
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| 基金项目： | 国家自然科学基金，上海市重点学科建设项目 |
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| 摘 要： | The hydrolysis technology and reaction kinetics for amino acids production from fish proteins in subcritical water reactor without catalysts were investigated in a reactor with volume of 400 ml under the conditions of reaction temperature from 180-320℃, pressure from 5-26 MPa, and time from 5-60 rain. The quality and quantity of amino acids in hydrolysate were determined by bioLiquid chromatography, and 17 kinds of amino acids were obtained. For the important 8 amino acids, the experiments were conducted to examine the effects of reaction temperature, pressure and time on amino acids yield. The optimum conditions for high yield are obtained from the experimental results. It is found that the nitrogen and carbon dioxide atmosphere should be used for leucine, isoleucine and histidine production while the air atmosphere might be used for other amino acids. The reaction time of 30 rain and the experimental temperature of 220℃, 240℃ and 260℃ were adopted for reaction kinetic research. The total yield of amino acids versus reaction time have been examined experimentally. According to these experimental data and under the condition of water excess, the macroscopic reaction kinetic equation of fish proteins hydrolysis was obtained with the hydrolysis reaction order of 1.615 and the rate constants being 0.0017, 0.0045 and 0.0097 at 220℃, 240℃ and 260℃ respectively. The activation energy is 145.1 kJ·mol^- 1.
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| 关 键 词： | biomass subcritical water hydrolysis reaction kinetics amino acids |
| 收稿时间： | 25 September 2007 |
| 修稿时间： | 2008-3-1
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Amino acids production from fish proteins hydrolysis in subcritical water |
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| ZHU Xian,ZHU Chao,ZHAO Liang,CHENG Hongbin.Amino acids production from fish proteins hydrolysis in subcritical water[J].Chinese Journal of Chemical Engineering,2008,16(3):456-460. |
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| Authors: | ZHU Xian ZHU Chao ZHAO Liang CHENG Hongbin |
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| Affiliation: | Department of Chemical Engineering, School of Environment and Chemical Engineering, Shanghai University, Shanghai 201800, China |
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| Abstract: | The hydrolysis technology and reaction kinetics for amino acids production from fish proteins in subcritical water reactor without catalysts were investigated in a reactor with volume of 400 ml under the conditions of reaction temperature from 180–320°C, pressure from 5-26 MPa, and time from 5-60 min. The quality and quantity of amino acids in hydrolysate were determined by bioLiquid chromatography, and 17 kinds of amino acids were obtained. For the important 8 amino acids, the experiments were conducted to examine the effects of reaction temperature, pressure and time on amino acids yield. The optimum conditions for high yield are obtained from the experimental results. It is found that the nitrogen and carbon dioxide atmosphere should be used for leucine, isoleucine and histidine production while the air atmosphere might be used for other amino acids. The reaction time of 30 min and the experimental temperature of 220°C, 240°C and 260°C were adopted for reaction kinetic research. The total yield of amino acids versus reaction time have been examined experimentally. According to these experimental data and under the condition of water excess, the macroscopic reaction kinetic equation of fish proteins hydrolysis was obtained with the hydrolysis reaction order of 1.615 and the rate constants being 0.0017,0.0045 and 0.0097 at 220°C, 240°C and 260°C respectively. The activation energy is 145.1 kJ·mol−1. |
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| Keywords: | biomass subcritical water hydrolysis reaction kinetics amino acids |
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