Soil variables and reflected light revealed the plasticity of grape and wine composition: Regulation of the flavoromics under inner row gravel covering

Meng-Bo Tian; Wan-Hui Ma; Nong-Yu Xia; Jing Peng; Rui-Qi Hu; Chang-Qing Duan; Fei He

doi:10.1016/j.foodchem.2023.135659

Soil variables and reflected light revealed the plasticity of grape and wine composition: Regulation of the flavoromics under inner row gravel covering

Food Chem. 2023 Jul 15:414:135659. doi: 10.1016/j.foodchem.2023.135659. Epub 2023 Feb 8.

Authors

Meng-Bo Tian¹, Wan-Hui Ma¹, Nong-Yu Xia¹, Jing Peng¹, Rui-Qi Hu¹, Chang-Qing Duan¹, Fei He²

Affiliations

¹ Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China.
² Center for Viticulture and Enology, College of Food Science and Nutritional Engineering, China Agricultural University, Beijing 100083, China; Key Laboratory of Viticulture and Enology, Ministry of Agriculture and Rural Affairs, China Agricultural University, Beijing 100083, China. Electronic address: wheyfey@cau.edu.cn.

PMID: 36808029
DOI: 10.1016/j.foodchem.2023.135659

Abstract

Abundant gravel in vineyards bothers growers. To investigate the gravel covering inner-row effect on grapes and wines, a two-year experiment was carried out. Regional climate and vine microclimate were collected, the flavoromics of grapes and wines were determined by HPLC-MS and HS/SPME-GC-MS. Gravel covering reduced the soil moisture. Light-colored gravel covering (LGC) enhanced the reflected light by 7-16% and cluster-zone temperature by up to 2.5 °C. Dark-colored gravel covering (DGC) absorbed 13% of the solar radiation and cooled the cluster-zones. DGC promoted the accumulation of 3'4'5'-hydroxylated anthocyanins and C₆/C₉ compounds in grapes, while grapes of LGC were accompanied by higher flavonols. The phenolic profiles of grapes and wines among treatments were consistent. The overall aroma of grapes from LGC was lower, while DGC helped to weaken the negative effects of rapid ripening in warm vintages. Our results revealed the gravel regulate grape and wine quality through soil and cluster microclimate.

Keywords: Aroma compounds; Grape and wine; Gravel covering; Microclimate; Phenolic compounds.

MeSH terms

Anthocyanins / analysis
Fruit / chemistry
Soil
Vitis*
Wine* / analysis

Substances

Soil
Anthocyanins