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Updated: Jun 16, 2025

Author Spotlight: Exploring the Fermentation Microbiome Through Next-Generation Sequencing
Published on: December 1, 2023
Multiclass metabolite-centric insights into wine quality enhancement driven by malolactic fermentation using
Biying Zhang1, Hui Liu1, Cuiyi Zhang1
1College of Enology, College of Horticulture, Shaanxi Engineering Research Center for Viti-Viniculture, Viti-viniculture Engineering Technology Center of State Forestry and Grassland Administration, Heyang Experimental and Demonstrational Stations for Grape, Ningxia Helan Mountain's East Foothill Wine Experiment and Demonstration Station, Northwest A&F University, Yangling, Shaanxi, China.
None:
The autochthonous lactic acid bacteria were better suited for representing wine styles, typicity, and regional variations in oenological regions. The oenological characteristics of native O. oeni and L. plantarum were assessed during malolactic fermentation in four varietal wines from three subregions of Helan Mountain's Eastern Foothills. Oe144-46 exhibited higher viable cells, greater malate degradation and higher lactate yield across wines. However, LpXJ25 effectively mitigated color loss and enhanced color saturation and brightness consistently with alteration in polyphenolic profiles. Volatile compounds analysis revealed that LpXJ25 significantly increased total terpene content among wines by 4-7 folds, especially α-terpinenol, geraniol, citronellol and terpinen-4-ol, therefore enhancing floral complexity. Meanwhile, Oe144-46 notably elevated ester levels, intensifying fruity flavor profiles, primarily attributed to isopentyl hexanoate, ethyl decanoate, ethyl nonylate, and ethyl octanoate. The comprehensive evaluation of the metabolic similarities and disparities between O. oeni and L. plantarum provides a viable approach to developing distinctive wine products.
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