Mechanism of (-)-epigallocatechin gallate (EGCG) dimerization by low-temperature plasma.

ABSTRACT: The efficient dimerization of (-)-Epigallocatechin gallate (EGCG), which is the major bioactive constituent isolated from the leaves of Camellia sinensis, was initially reported without changes in its stereochemistry using low-temperature plasma. The contribution of plasma during the dimerization of EGCG in a methanolic solution was quantified using a major factor, with the major factor demonstrated based on the contents of newly generated products, in this case the sum of oolonghomobisflavans A and B depending on the plasma treatment method. Samples were treated in three methods: plasma direct treatment, an indirect treatment using only reactive species, and an indirect treatment using effects other than those by reactive species. Ozone was identified as a major factor during the plasma t

SUBMITTER: Park S 

PROVIDER: S-EPMC9470551 | biostudies-literature | 2022 Sep

REPOSITORIES: biostudies-literature