Volume 15, Issue 2 (2013)                   JAST 2013, 15(2): 333-342 | Back to browse issues page

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Jiang L, Shen Z, Zheng H, He W, Deng G, Lu H. Noninvasive Evaluation of Fructose, Glucose, and Sucrose ‎Contents in Fig Fruits during Development Using ‎ Chlorophyll Fluorescence and Chemometrics. JAST 2013; 15 (2) :333-342
URL: http://jast.modares.ac.ir/article-23-1636-en.html
1- College of Chemistry and Life Science, Zhejiang Normal University, Jinhua 321004, China.‎
2- Department of Biological and Food Engineering, Changshu Institute of Technology, Changshu, Jiangsu ‎‎215500, China.‎
Abstract:   (7303 Views)
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.
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Article Type: Research Paper | Subject: Horticultural Science|Food Science and Technology
Received: 2011/12/20 | Accepted: 2012/06/23 | Published: 2013/01/17

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