| 碱提和超声波辅助提取菜籽蛋白比较研究 |
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| 引用本文： | 党斌,杨希娟,孙小凤. 碱提和超声波辅助提取菜籽蛋白比较研究[J]. 中国油脂, 2012, 37(3): 22-26 |
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| 作者姓名： | 党斌 杨希娟 孙小凤 |
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| 作者单位： | 青海省农林科学院,西宁,810016 |
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| 基金项目： | 青海省科技厅应用基础研究项目(2009-Z-728) |
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| 摘 要： | 以热榨春油菜菜籽粕为原料,研究了碱提和超声波辅助提取两种方法对菜籽蛋白的提取效果,比较了两种方法提取的菜籽蛋白的性质差异。结果表明:超声波辅助提取效果好,提取时间短,提取率高;超声波辅助提取的菜籽蛋白吸水性、氮溶解指数、起泡性及泡沫稳定性、乳化性及乳化稳定性相对碱提法都有很大提高,而且在酸性条件下,超声波辅助提取的菜籽蛋白仍然具有较好的起泡性和泡沫稳定性。研究表明采用超声波辅助提取菜籽蛋白,不仅提取效果好,而且对菜籽蛋白起到了改性作用,提高了其部分功能性质。
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| 关 键 词： | 菜籽蛋白 碱提 超声波辅助提取 功能性质 |
Comparison of extracting rapeseed protein by alkaline solution and ultrasonic- assisted method |
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| DANG Bin , YANG Xijuan , SUN Xiaofeng. Comparison of extracting rapeseed protein by alkaline solution and ultrasonic- assisted method[J]. China Oils and Fats, 2012, 37(3): 22-26 |
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| Authors: | DANG Bin YANG Xijuan SUN Xiaofeng |
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| Affiliation: | (Qinghai Academy of Agriculture and Forestry,Xining 810016,China) |
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| Abstract: | Hot pressed rapeseed meal was used as raw material,and the rapeseed protein was obtained by alkaline solution extraction and ultrasonic-assisted alkaline solution extraction.In addition,the properties of the protein obtained by the two methods were compared.The results showed that the extraction effect of ultrasonic wave was better with short time and high extraction rate,and the water holding capacity,nitrogen soluble index,foaming properties and emulsifying properties of rapeseed protein were greatly improved by ultrasonic wave,and the foaming properties was better even in acidic conditions.The research showed that the ultrasonic-assisted method had many merits in extracting rapeseed protein. |
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| Keywords: | rapeseed protein alkaline extraction ultrasonic-assisted extraction property |
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