New Estimation Method for Fatty Acid Composition in Oil Using Near Infrared Spectroscopy(Analytical Chemistry)

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概要

• 論文の詳細を見る

• The absorption bands of cis-unsaturation and the carbon chain length of the fatty acid moieties in oil appear in the near infrared (NIR) wavelength region, especially around 1600-1800 nm. Using this region, a new estimation method for fatty acid composition analysis is proposed. Because the differences of the original NIR spectra are miniscule even in this region, the second derivative NIR spectra were examined in order to estimate the fatty acid composition in oil exclusively from the spectral patterns obtained. The parameters for calculating the second derivative NIR spectra were examined to make the spectral difference clearer. In any parameter, the absorption band was shifted to the shorter wavelength region when the unsaturation in fatty acid moieties increased, and it was shifted to the longer wavelength region when the carbon chain length increased. When the parameters were correct, this NIR method can estimate the fatty acid composition roughly, but simply, easily, and sometimes nondestructively.

• 社団法人日本農芸化学会の論文
• 2002-12-23

著者

• Takagi S

  Graduate School Of Science And Engineering Tokyo Institute Of Technology

• Sato Takuro

  Niigata Institute Of Technology

• Sato Takahide

  Graduate School Of Science And Engineering Tokyo Institute Of Technology

• Sato Tetsuo

  National Agricultural Research Center for Kyushu Okinawa Region (KONARC)

• Sato T

  Graduate School Of Science And Engineering Tokyo Institute Of Technology

• Sato Tetsuo

  National Agricultural Research Center For Kyushu Okinawa Region

• Takagi Shigetaka

  Tokyo Inst. Of Technol. Tokyo Jpn

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