Huang Rong, Jiang Jiao, Su Ying, Yu Hongfei, Shen Lei, Liu Yanlin, Qin Yi, Song Yuyang
College of Enology, Northwest A&F University, Yangling, Shaanxi 712100, China.
Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station of Northwest A&F University, Yongning, Ningxia 750104, China.
Food Chem X. 2023 Feb 26;17:100618. doi: 10.1016/j.fochx.2023.100618. eCollection 2023 Mar 30.
Microbiota succession in spontaneous fermentation of Cabernet Sauvignon cultivated under the rain-shelter was characterized, with open-field cultivation as the control. For both cultivation modes, , , and were the principal fungi, and , , and were the prevailing bacteria. Rain-shelter reduced the abundance of , , , , and . During fermentation, fungal microbiota diversity in samples from the rain-shelter cultivation decreased more drastically than the control ( < 0.05). In terms of the correlation between microbiota and volatile compounds production, the abundance of , , , , and were positively correlated with the production of esters and higher alcohols. Instead of bacterial microbiota, fungal community succession exhibited a positive correlation with the final wine volatiles under the rain-shelter cultivation. These findings demonstrated rain-shelter cultivation influences the succession pattern of microbial communities and in turn impacts the wine aromas and flavors.
以露天栽培为对照，对避雨栽培的赤霞珠自然发酵过程中的微生物群落演替进行了表征。对于两种栽培模式， 、 、 和 是主要真菌， 、 、 和 是优势细菌。避雨栽培降低了 、 、 、 和 的丰度。在发酵过程中，避雨栽培样品中的真菌微生物群落多样性下降幅度比对照更大（ < 0.05）。在微生物群与挥发性化合物产生之间的相关性方面， 、 、 、 和 的丰度与酯类和高级醇的产生呈正相关。在避雨栽培条件下，与细菌微生物群不同，真菌群落演替与最终葡萄酒挥发物呈正相关。这些发现表明，避雨栽培会影响微生物群落的演替模式，进而影响葡萄酒的香气和风味。
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