Biotechnological formation of dairy flavor inducing δ-lactones from vegetable oil

Autor: H. Zia, U. Von Ah, Y.H. Meng, R. Schmidt, J. Kerler, P. Fuchsmann
Jazyk: angličtina
Rok vydání: 2022
Předmět:
Zdroj: Food Chemistry: X, Vol 13, Iss , Pp 100220- (2022)
Druh dokumentu: article
ISSN: 2590-1575
DOI: 10.1016/j.fochx.2022.100220
Popis: Agroscope Culture Collection was screened to identify bacterial strains effective in production of dairy flavor inducing lactones using grapeseed oil as a substrate. Lentilactobacillus parafarraginis FAM-1079, Lactococcus lactis subsp. lactis FAM-17918, and L. lactis subsp. lactis biovar diacetylactis FAM-22003 showed the most efficient formation of targeted δ-lactones. The application of sublethal heat stress significantly increased target lactone production. The most profound improvement was for L. lactis subsp. lactis biovar diacetylactis where δ-octadecalactone generation was improved by factor of 9. The pre-fermentation step as well as growth phase in which bacteria are harvested did not have a significant impact on lactones yield. The lactone production process from vegetable oil developed in this study offers a new way of developing a natural flavor ingredient for incorporation into plant-based products.
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