Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 47, Issue 1, Pages 19-24Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2012.01.008
Keywords
Mulberry; Antioxidants; RGB intensity values; Chlorophyll fluorescence
Categories
Funding
- Project of Scientific and Technological Research Plan of Jinhua [2010-3-078, 2010-3-079]
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The use of chlorophyll fluorescence measurements and RGB intensity values to noninvasively evaluate changes of the internal chemical parameters (total flavonoid, total phenols. ABTS cation and DPPH radical scavenging activities and sugars) was investigated during all the development stages (ST) and the last four development stages of mulberry fruits in this study. The appropriately fitted relationships in this study revealed that chlorophyll fluorescence and RGB intensity have high correlations with the internal chemical parameters of mulberry fruits. Especially, each of the internal chemical parameters has higher correlations with chlorophyll fluorescence and RGB intensity during the period of ST4-ST7 than during the period of ST1-ST7 respectively. High correlations between chlorophyll fluorescence and the internal chemical parameters were found during the period of ST4-ST7, with R-2 ranged from 0.82 to 0.94. RGB intensity values showed fine correlations with the internal chemical parameters with R-2 ranged from 0.93 to 0.97 during the period of ST4-ST7. Therefore, chlorophyll fluorescence and RGB intensity values may be potential methods for quality evaluation of mulberry fruits during development, however, it is of great importance to select the most adequate parameter for the evaluation of different chemical components. (C) 2012 Elsevier Ltd. All rights reserved.
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