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Front Plant Sci

Title:		Effect of Pathogenic Fungal Infestation on the Berry Quality and Volatile Organic Compounds of Cabernet Sauvignon and Petit Manseng Grapes
Author(s):		Li X; Li T; Li M; Chen D; Liu X; Zhao S; Dai X; Chen J; Kong Z; Tan J;
Address:		"College of Food Science and Technology, Hebei Agricultural University, Baoding, China. State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing, China. Shandong Academy of Grape, Shandong Academy of Agricultural Sciences, Jinan, China. Key Laboratory of Agro-Products Quality and Safety Control in Storage and Transport Process, Ministry of Agriculture and Rural Affairs, Institute of Food Science and Technology, Chinese Academy of Agricultural Sciences, Beijing, China. College of Life Sciences, Tarim University, Alar, China"
Journal Title:		Front Plant Sci
Year:		2022
Volume:		20220722
Issue:
Page Number:		942487 -
DOI:		10.3389/fpls.2022.942487
ISSN/ISBN:		1664-462X (Print) 1664-462X (Electronic) 1664-462X (Linking)
Abstract:		"The effect of pathogenic fungal infestation on berry quality and volatile organic compounds (VOCs) of Cabernet Sauvignon (CS) and Petit Manseng (PM) were investigated by using biochemical assays and gas chromatography-ion mobility spectrometry. No significant difference in diseases-affected grapes for 100-berry weight. The content of tannins and vitamin C decreased significantly in disease-affected grapes, mostly in white rot-affected PM, which decreased by 71.67% and 66.29%. The reduced total flavonoid content in diseases-affected grape, among which the least and most were anthracnose-affected PM (1.61%) and white rot-affected CS (44.74%). All diseases-affected CS had much higher titratable acid, a maximum (18.86 g/100 ml) was observed in the gray mold-affected grapes, while only anthracnose-affected grapes with a higher titratable acid level (21.8 g/100 mL) were observed in PM. A total of 61 VOCs were identified, including 14 alcohols, 13 esters, 12 aldehydes, 4 acids, 4 ketones, 1 ether, and 13 unknown compounds, which were discussed from different functional groups, such as C6-VOCs, alcohols, ester acetates, aldehydes, and acids. The VOCs of CS changed more than that of Petit Manseng's after infection, while gray mold-affected Cabernet Sauvignon had the most change. C6-VOCs, including hexanal and (E)-2-hexenal were decreased in all affected grapes. Some unique VOCs may serve as hypothetical biomarkers to help us identify specific varieties of pathogenic fungal infestation"
Keywords:		Cabernet Sauvignon Gc-ims Petit Manseng pathogenic fungal infestation volatile organic compounds;
Notes:		"PubMed-not-MEDLINELi, Xueyao Li, Tinggang Li, Minmin Chen, Deyong Liu, Xiaowei Zhao, Shanshan Dai, Xiaofeng Chen, Jieyin Kong, Zhiqiang Tan, Jianxin eng Switzerland 2022/08/09 Front Plant Sci. 2022 Jul 22; 13:942487. doi: 10.3389/fpls.2022.942487. eCollection 2022"