Potential application of CHS and 4CL genes from grape endophytic fungus in production of naringenin and resveratrol and the improvement of polyphenol profiles and flavour of wine

Yao Lu, Yuyang Song, Jing Zhu, Xiaoguang Xu, Bing Pang, Han Jin, Chunmei Jiang, Yanlin Liu, Junling Shi

Research output: Contribution to journalArticlepeer-review

31 Scopus citations

Abstract

4-Coumaroyl-CoA ligase (Al4CL) and chalcone synthase (AlCHS) genes were found in grape endophyte Alternaria sp. MG1, but were not functional verified. A cross-validation method was used in Saccharomyces cerevisiae to identify their functions. AlCHS was identified to synthesize both naringenin and resveratrol, while Al4CL synthesized p-coumaroyl CoA. Co-culture of S. cerevisiae strains separately containing AlCHS and Al4CL resulted in the simultaneous production of naringenin (18.5 mg/L) and resveratrol (113.2 μg/L). Strain S. cerevisiae containing Al4CL was used in winemaking and the chemical and aroma compounds in wine were detected by HPLC and SPME-GC–MS. Results showed that the total contents of polyphenols, anthocyanins, flavonol, ethyl esters and fatty acids significantly increased, while the 4-vinylphenol content decreased, and the fruit and cheese flavour increased but the green aroma declined. This study indicated the potential application of Al4CL and AlCHS genes from Alternaria sp. MG1 for improvement of wine nutrients and flavour.

Original languageEnglish
Article number128972
JournalFood Chemistry
Volume347
DOIs
StatePublished - 15 Jun 2021

Keywords

  • 4-Vinylphenol (PubChem CID7942)
  • Endophytic fungi
  • Flavonoid
  • Flavour
  • Naringenin (PubChem CID439246)
  • Resveratrol
  • Resveratrol (PubChem CID445154)
  • S. cerevisiae
  • Wine
  • p-Coumaric acid (PubChem CID637542)

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