Molecules, Vol. 28, Pages 3371: Chemometrics of the Composition and Antioxidant Capacity of Hyptis crenata Essential Oils from Brazil

Molecules, Vol. 28, Pages 3371: Chemometrics of the Composition and Antioxidant Capacity of Hyptis crenata Essential Oils from Brazil Molecules doi: 10.3390/molecules28083371 Authors: Maria Nancy N. de Lima Jamile Silva da Costa Bruna A. Guimarães Jofre Jacob S. Freitas William N. Setzer Joyce Kelly R. da Silva José Guilherme S. Maia Pablo Luis B. Figueiredo Hyptis crenata (Pohl) ex Benth is used in traditional medicine as an analgesic to treat general pain. Six Hyptis crenata samples (Hc-1 to Hc-6) were collected in Pará state, Brazil. The leaf essential oils were obtained by hydrodistillation, and GC-MS and GC-FID were used to analyze their chemical compositions. The antioxidant capacity was measured in vitro using DPPH and carotene/linoleic acid assays. Chemometrics analysis (PCA, HCA, and clustered heat map) were used to identify the sample relationships between those collected in this study and those from the literature (Hc-7 to Hc-16) samples. According to the main chemical constituents identified in the samples described in this work and the literature, the sixteen samples were classified into ten groups. Group I was characterized by 1,8-cineole (31.0%), α-pinene (13.6%), (E)-caryophyllene (7.8%), and β-pinene (7.6%); and Group IV was characterized by 1,8-cineole (17.4–23.5%), α-pinene (15.7–23.5%), β-pinene (10.5–13.4%), and limonene (...
Source: Molecules - Category: Chemistry Authors: Tags: Article Source Type: research