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Establishment of near-infrared prediction model ofconcentration in the isoleucine fermentation

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  • 1.Tianjin Modern Vocational Technology College,Tianjin 300350,China;
    2.College of Biotechnology,Tianjin University of Science and Technology,Tianjin 300457,China

Abstract

The near-infrared spectrum scanning analysis was carried out using near infrared    analyzer and related software,and the optimal prediction model for isoleucine concentration was    established using near-infrared spectroscopy combining with partial least squares method under
conditions of a straight line minus at wavenumber between 7 400cm-1 and 9 100cm-1.The value    of root mean square error of cross validation(RMSECV),determination coefficient(R2)and residual   prediction error(RPD)was 1.73g/L,0.997and 3.36,respectively.Through external validation,the   model could well predict the concentration of isoleucine in the fermentation process.

Cite this article

GUO Yufei,SHI Tuo,XU Qingyang . Establishment of near-infrared prediction model ofconcentration in the isoleucine fermentation[J]. Bulletin of Fermentation Science and Technology, 2017 , 46(3) : 138 -142 . DOI: 10.16774/j.cnki.issn.1674-2214.2017.03.003

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