Zhou, Ying; Deng, Rufang; Xu, Xinlan; Yang, Ziyin published the artcile< Enzyme Catalytic Efficiencies and Relative Gene Expression Levels of (R)-Linalool Synthase and (S)-Linalool Synthase Determine the Proportion of Linalool Enantiomers in Camellia sinensis var. sinensis>, COA of Formula: C10H18O, the main research area is linalool synthase Camellia enzyme kinetic stress; Camellia sinensis; aroma; chirality; enzyme kinetics; linalool; stresses; tea; volatile.
Linalool is abundant in tea leaves and contributes greatly to tea aroma. The two isomers of linalool, (R)-linalool and (S)-linalool, exist in tea leaves. Our study found that (R)-linalool was the minor isomer in nine of Camellia sinensis var. sinensis cultivars. The (R)-linalool synthase of tea plant CsRLIS was identified subsequently. It is a chloroplast-located protein and specifically catalyzes the formation of (R)-linalool in vitro and in vivo. CsRLIS was observed to be a stress-responsive gene and caused the accumulation of internal (R)-linalool during oolong tea manufacture, mech. wounding, and insect attack. Further study demonstrated that the catalytic efficiency of CsRLIS was much lower than that of (S)-linalool synthase CsSLIS, which might explain the lower (R)-linalool proportion in C. sinensis var. sinensis cultivars. The relative expression levels of CsRLIS and CsSLIS may also affect the (R)-linalool proportions among C. sinensis var. sinensis cultivars. This information will help us understand differential distributions of chiral aroma compounds in tea.
Journal of Agricultural and Food Chemistry published new progress about Arabidopsis. 78-70-6 belongs to class alcohols-buliding-blocks, and the molecular formula is C10H18O, COA of Formula: C10H18O.
Referemce:
Alcohol – Wikipedia,
Alcohols – Chemistry LibreTexts