TEMPERATURE ESTIMATION METHOD AND PROTEIN CONTENT ESTIMATION METHOD BY MEANS OF NEAR INFRARED SPECTRAL ANALYSIS

摘要

PURPOSE: To obtain the method for estimating sample temperature by means of near infrared spectral analysis. ;CONSTITUTION: The temperature of an unpolished rice sample is made, for instance, 6°C, a near infrared ray is irradiated on a known sample at the temperature by the use of a near infrared spectral analyzer and a degree of light absorption for each wave length of the near infrared ray is detected to perform secondary differential for the purpose of finding the degree of secondary differential light absorption. These pieces of processing are performed on the samples of the number of N(S1). Continuously the temperatures of unpolished rice powder samples are made, for instance, 20°C and 31°C and the same processing is repeated on each sample in each temperature condition (S1, S2). Next, by the use of a computer incorporated in a near infrared spectral analyzer, the temperatures of the samples (actually measured values) are made objective variables, the second order differential absorbance at a specified value is made explanation variables by means of the wave length from the calculated second order differential absorbance and multiple regression analysis is performed for finding the temperatures of unknown samples to obtain a quantity detection line(S4). Thereafter, the temperature estimation of the unknown samples is performed by utilizing the quantity detection line.;COPYRIGHT: (C)1993,JPO&Japio