| 低温脱脂豆粕中大豆分离蛋白提取工艺的研究 |
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| 引用本文： | 李大鹏,赵睿.低温脱脂豆粕中大豆分离蛋白提取工艺的研究[J].农产品加工．学刊,2007(12):22-24. |
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| 作者姓名： | 李大鹏 赵睿 |
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| 作者单位： | 黑龙江八一农垦大学食品学院,黑龙江,大庆,163319 |
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| 摘 要： | 采用碱提酸沉法,进行低温脱脂豆粕中大豆分离蛋白提取工艺的研究。通过单因素实验和正交实验,确定了一次碱提的最佳工艺条件为:液固比为10∶1,碱提pH值为9.0,碱提温度为50℃,碱提时间为50min;通过单因素实验确定了最适的酸沉温度为45℃,酸沉pH值为4.6。最终蛋白提取率可达79.36%,蛋白含量为90.1%。
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| 关 键 词： | 豆粕 分离蛋白 碱提酸沉 正交实验 |
| 文章编号： | 1671-9646（2007）12-0022-03 |
| 收稿时间： | 2007-11-29 |
| 修稿时间： | 2007年11月29 |
Study on Extraction Technique of Soybean Isolated Protein in Microtherm Soybean Meal |
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| Li Dapeng,ZHao Rui.Study on Extraction Technique of Soybean Isolated Protein in Microtherm Soybean Meal[J].Nongchanpin Jlagong.Xuekan,2007(12):22-24. |
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| Authors: | Li Dapeng ZHao Rui |
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| Abstract: | Using the way of alkaline extraction and acid precipitation to extract the isolated protein from soybean meal,the process of extracting was studied. The optimum conditions of first alkaline extraction:the ratio of solid and liquid 1∶10,the temperature of extraction 50 ℃and the extracing time of alkaline 50 min are obtained by both single factor experiment and cross experiment. Then by the single factor experiment,The optimum conditions of acid deposition:the temperature 45 ℃,pH 4.6 were determined. At last,the maximum of extrasting ratio is 79.36% and the protein level is 90.1%. |
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| Keywords: | soybean meal isolated protein alkali dissolution and acid deposition orthogonal experiment |
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