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Molecules 2008, 13(11), 2859-2870; doi:10.3390/molecules13112859
Article

Principal Component Regression Analysis of the Relation Between CIELAB Color and Monomeric Anthocyanins in Young Cabernet Sauvignon Wines

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Received: 14 August 2008; in revised form: 4 November 2008 / Accepted: 11 November 2008 / Published: 17 November 2008
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Abstract: Color is one of the key characteristics used to evaluate the sensory quality of red wine, and anthocyanins are the main contributors to color. Monomeric anthocyanins and CIELAB color values were investigated by HPLC-MS and spectrophotometry during fermentation of Cabernet Sauvignon red wine, and principal component regression (PCR), a statistical tool, was used to establish a linkage between the detected anthocyanins and wine coloring. The results showed that 14 monomeric anthocyanins could be identified in wine samples, and all of these anthocyanins were negatively correlated with the L*, b* and H*ab values, but positively correlated with a* and C*ab values. On an equal concentration basis for each detected anthocyanin, cyanidin-3-O-glucoside (Cy3-glu) had the most influence on CIELAB color value, while malvidin 3-O-glucoside (Mv3-glu) had the least. The color values of various monomeric anthocyanins were influenced by their structures, substituents on the B-ring, acyl groups on the glucoside and the molecular steric structure. This work develops a statistical method for evaluating correlation between wine color and monomeric anthocyanins, and also provides a basis for elucidating the effect of intramolecular copigmentation on wine coloring.
Keywords: Anthocyanins; CIELAB color values; Wine color; Principal component regression Anthocyanins; CIELAB color values; Wine color; Principal component regression
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

Han, F.-L.; Zhang, W.-N.; Pan, Q.-H.; Zheng, C.-R.; Chen, H.-Y.; Duan, C.-Q. Principal Component Regression Analysis of the Relation Between CIELAB Color and Monomeric Anthocyanins in Young Cabernet Sauvignon Wines. Molecules 2008, 13, 2859-2870.

AMA Style

Han F-L, Zhang W-N, Pan Q-H, Zheng C-R, Chen H-Y, Duan C-Q. Principal Component Regression Analysis of the Relation Between CIELAB Color and Monomeric Anthocyanins in Young Cabernet Sauvignon Wines. Molecules. 2008; 13(11):2859-2870.

Chicago/Turabian Style

Han, Fu-Liang; Zhang, Wen-Na; Pan, Qiu-Hong; Zheng, Cheng-Rong; Chen, Hai-Yan; Duan, Chang-Qing. 2008. "Principal Component Regression Analysis of the Relation Between CIELAB Color and Monomeric Anthocyanins in Young Cabernet Sauvignon Wines." Molecules 13, no. 11: 2859-2870.


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