He Fei, Tian Meng-Bo, Duan Wei-Peng, Yang Wei-Ming, Mao Xue, Wang Jun, Duan Chang-Qing
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.
Foods. 2023 Jun 23;12(13):2472. doi: 10.3390/foods12132472.
This two-consecutive-year study aimed to evaluate the effects of ground management methods on the volatomics of 'Cabernet Sauvignon' grapes and wines in Northwest China, in which inner-row crop covering with purslane (GRASS) and mulching with black plastic film (FILM) treatments were carried out, respectively. Compared with clean tillage (CK), the GRASS and FILM treatments changed the microclimates of grapevine fruit zones and rhizospheres, which delayed the ripening of grape berries and affected the accumulation of aroma substances in the mature grapes effectively. GRASS increased the concentration of terpenes and C-norisoprenoids in berries and gave more floral, fruity, and caramel fragrances to wines, while FILM had the opposite effect of significantly increasing the synthesis of C/C compounds and brought more green leaf flavors, showing that inner-row purslane covering is a potential and stable viticultural practice to improve the wine quality in this booming wine region.
这项为期两年的研究旨在评估中国西北地区地面管理方法对‘赤霞珠’葡萄及葡萄酒挥发性成分的影响,其中分别进行了行间种植马齿苋覆盖(GRASS)和黑色塑料薄膜覆盖(FILM)处理。与清耕(CK)相比,GRASS和FILM处理改变了葡萄果实区域和根际的微气候,有效延缓了葡萄浆果的成熟,并影响了成熟葡萄中香气物质的积累。GRASS增加了浆果中萜类化合物和C-去甲异戊二烯类化合物的浓度,使葡萄酒具有更多花香、果香和焦糖香气,而FILM则产生相反的效果,显著增加了C/C化合物的合成,并带来更多绿叶风味,表明行间马齿苋覆盖是在这个蓬勃发展的葡萄酒产区提高葡萄酒品质的一种有潜力且稳定的葡萄栽培实践。