Development of prediction models for nondestructive measurement of sugar content in sweet persimmon

초록

This study was performed to develop nondestructive determination technology of sugar contents in a sweet persimmon, and the main research results include the following. In order to determine the sugar contents in a sweet persimmon, we adopted a dual side reflex, and the study was going to measure sugar contents by using a reflectance spectrum for 2 parts because it is difficult to determine representative sugar contents due to a great deviation in sugar contents according to the part of a sweet persimmon. To predict sugar contents of sweet persimmon, we used PLSR and PCR models and compared with a few preprocess methods. As a result, PLSR had R=0.821, SEP=0.42 brix, LV=11 and PCR had R=0.805, SEP=0.41 brix, PC=16. SNV method was the best among preprocess methods for predicting sugar contents.

키워드