Estimation of the Mixing Ratios of Edible Oil Mixtures by Quadratic Programming.

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  • YAMAMOTO Hiromichi
    National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries National Institute of Agro-Environmental Sciences, Ministry of Agriculture, Forestry and Fisheries
  • YAMAZAKI Megumi
    National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries
  • NAGAO Akihiko
    National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries
  • ISHIMA Toshio
    National Food Research Institute, Ministry of Agriculture, Forestry and Fisheries Hokuriku National Agricultural Experiment Station, Ministry of Agriculture, Forestry and Fisheries

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  • 2次計画法による食用油脂の混合率推定
  • Estimation of the Mixing Ratios of Edib

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Abstract

The authors established a method for estimating the mixing ratios of oil mixtures on the basis of their fatty acid composition data by quadratic programming. This method was applied to the mixtures of sesame oil, soybean oil, rapeseed oil and rice bran oil. The results were highly accurate provided exact data were available for the pure oils used in mixing. The error between estimated and actual mixing ratio derived primarily from variation in fatty acid composition of pure oils among different sources. The distribution ranges of the estimated mixing ratio for binary mixtures of sesame and adulterant oil were calculated and the results confirmed the effectiveness of this method.

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