Title of article :
Noninvasive Evaluation of Fructose, Glucose, and Sucrose Contents in Fig Fruits during Development Using Chlorophyll Fluorescence and Chemometrics
Author/Authors :
-، - نويسنده College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China. Jiang, L. , -، - نويسنده Department of Biological and Food Engineering, Changshu Institute of Technology, Changshu, Jiangsu 215500, China. Shen, Z. , -، - نويسنده College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China. Zheng, H. , -، - نويسنده College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China. He, W. , -، - نويسنده College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China. Deng, G. , -، - نويسنده College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China. Lu, H.
Abstract :
The use of chlorophyll fluorescence (ChlF) technique was evaluated on nondestructive measurement of sugar content during fruit development. Multivariate models, principal component analysis (PCA), and partial least-squares regression (PLSR), were developed for the classification and prediction of fructose, glucose, and sucrose in fig fruits. The results of this study showed a significant correlation between fluorescence parameters and sugar content during fruit development. The PCA-ChlF can be used as a fast screening method for discriminating the degree of maturity based on sugar content. In addition, the root mean squared error (RMSE) and coefficient of determination (R2) of PLSR-ChlF for predicting sugar content were 2.01 g 100 g-1 DW and 0.96 for fructose, 1.03 g 100 g-1 DW and 0.99 for glucose, and 0.17 g 100 g-1 DW and 1.00 for sucrose, respectively. Therefore, ChlF combined with chemometrics may be a potential tool to nondestructively evaluate sugar accumulation in not only fig fruits, but also any other chlorophyll-containing fruit during development.
