食品科学

• 工艺技术 • 上一篇    下一篇

响应面试验优化绿豆凝集素提取工艺

黄泽华1,王倩雯1,张 贺1,李育楠1,李庆波1,曹龙奎1,2,*   

  1. 1.黑龙江八一农垦大学食品学院,黑龙江 大庆 163319;2.黑龙江省农产品加工工程技术研究中心,黑龙江 大庆 163319
  • 出版日期:2014-10-25 发布日期:2014-11-07
  • 基金资助:

    “十二五”国家科技支撑计划项目(2012BAD34B0205)

Response Surface Methodology to Optimize the Extraction Process of Mung Bean Lectin

HUANG Ze-hua1, WANG Qian-wen1, ZHANG He1, LI Yu-nan1, LI Qing-bo1, CAO Long-kui1,2,*   

  1. 1. College of Food Science, Heilongjiang Bayi Agricultural University, Daqing 163319, China;
    2. Agri-Food Processing and Engineering Technology Research Center of Heilongjiang Province, Daqing 163319, China
  • Online:2014-10-25 Published:2014-11-07

摘要:

凝血法检测绿豆凝集素活性,并改进凝集活性检测兔血红细胞处理条件,在单因素试验的基础上设计响应面Box-Behnken试验,优化绿豆凝集素提取工艺条件。结果表明,凝集活性检测兔血红细胞的处理最佳条件为戊二醛体积分数0.15%、25 ℃处理血细胞20 min;胰蛋白酶添加量25 U/mL、25 ℃处理15 min,优化条件下提高了兔血红细胞凝集灵敏度且延长了兔血红细胞保存时间。磷酸盐缓冲溶液为绿豆凝集素最佳浸提溶液,绿豆凝集素优化工艺条件为料液比1∶9.09(g/mL)、NaCl浓度0.3 mol/L、浸提时间4.16 h,在此条件下最大绿豆凝集素比活力预测和验证值分别为134.91 U/mg和139.02 U/mg。

关键词: 绿豆凝集素, 响应面法, 优化, 提取

Abstract:

The experiment was designed to use erythrocytes for assaying the agglutinating activity of mung bean lectin,
and to improve the processing conditions for glutaraldehyde- and trypsin-treated rabbit red blood cells. Rabbit red blood
cells (RBC) were fixed with 0.15% (V/V) glutaraldehyde at 25 ℃ for 20 min, and the RBC were treated with trypsin
(25 U/mL) at 25 ℃ for 15 min to increase the assay activity and extend their preservation time. In the investigation, we
found that the most suitable extraction solvent for mung bean lectin was phosphate buffer solution. Based on the results of
single-factor experiments, a Box-Behnken design (BBD) of three variables at three levels each was carried out to obtain
maximum activity of mung bean lectin by response surface analysis. The maximum activity of mung bean lectin was
predicted to be 134.91 U/mg and observed to be 139.02 U/mg under the optimum extraction conditions: solid-to-liquid ratio,
1:9.09 (g/mL); NaCl concentration, 0.3 mol/L; and extraction time, 4.16 h.

Key words: mung bean lectin, response surface analysis, optimization, extraction

中图分类号: