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中国农学通报 ›› 2010, Vol. 26 ›› Issue (23): 101-107.

所属专题: 生物技术

• 食品 营养 检测 安全 • 上一篇    下一篇

化学分析法的理想参考蛋白模式及其化学生物价研究

颜孙安 林香信 钱爱萍 姚清华   

  • 收稿日期:2010-09-03 修回日期:2010-09-28 出版日期:2010-12-05 发布日期:2010-12-05
  • 基金资助:

    福建省财政专项

The Study on the Ideal Reference Protein Model of Chemical Analysis and Biological Value

  • Received:2010-09-03 Revised:2010-09-28 Online:2010-12-05 Published:2010-12-05

摘要:

化学分析法在不同参考蛋白模式下得到的评价差距较大,在作为蛋白质生物价的估计时不够理想和满意,为此筛选出相应的理想参考蛋白模式使其评价更为准确和可靠具有重要的意义。为此,利用统计学软件分析多种食物在两种常用模式下各化学评分与生物价的相关性和离差情况,在保持二者等级相关程度不变情况下,求出各化学评分与生物价的回归方程。结果表明:两种常用模式下各化学评分与BV的偏离高低不一,而化学生物价从总体上消除与BV的偏离。AAS、CS、EAAI及EAARR与BV的相关性在全蛋模式下较强,而SRCAA与BV的相关性在FAO/WHO模式下较强。同时化学生物价不仅保持相关性不变,而且使二者高度等级关系转变为等值关系。因此,AAS、CS、EAAI及EAARR应以全蛋模式作为理想参考蛋白模式,而SRCAA要以FAO/WHO模式作为理想参考蛋白模式。化学生物价比各化学评分更接近BV值,作为BV的估计值时更为合理、准确和可靠。

关键词: 鸡, 鸡, NYGGF4, 表达谱, PID结构域

Abstract:

Different chemical score can be obtained under different reference protein model when biological analysis is used. So, it is not perfect and satisfied enough to use it as the estimated value of biological value (BV). Therefore, it is more meaningful to find out an ideal reference protein model to gain more exact and reliable chemical score. The paper aims at analyzing the relativity and deviation of each chemical score and BV in two models (Whole Egg model and FAO/WHO model), and finding out the regression equation between each chemical score and BV. Consequently, it is found that the deviations between the two above are quite different. And it is important that the CBV can eliminate the deviation over all. The relativity between AAS, CS, EAAI, EAARR and BV under the Whole Egg model is much greater, while the relativity between SRCAA and BV is much greater under the FAO/WHO model. Meanwhile, the CBV doesn’t only make the relativity maintain the same but also make the two parts (Chemical Analysis and Biological Value) equal to each other. Therefore, the Whole Egg model could be used to analyze AAS、CS、EAAI and EAARR and the FAO/WHO model could be used to analyze SRCAA. The CBV is much closer to BV than each chemical score. And it is more reasonable, exact and trustworthy to use the CBV as the estimated value of BV.

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