Details

Autor(en) / Beteiligte

• Lima, Maria Nancy N de
• Costa, Jamile Silva da
• Guimarães, Bruna A
• Freitas, Jofre Jacob S
• Setzer, William N
• Silva, Joyce Kelly R da
• Maia, José Guilherme S
• Figueiredo, Pablo Luis B

Titel

Chemometrics of the Composition and Antioxidant Capacity of Hyptis crenata Essential Oils from Brazil

Ist Teil von

• Molecules (Basel, Switzerland), 2023-04, Vol.28 (8), p.3371

Ort / Verlag

Switzerland: MDPI AG

Erscheinungsjahr

2023

Quelle

MEDLINE

Beschreibungen/Notizen

• (Pohl) ex Benth is used in traditional medicine as an analgesic to treat general pain. Six 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%), ( )-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 (8.5-9.7%). Both groups are described for the first time. The total antioxidant capacity was expressed in Trolox Equivalent Antioxidant Capacity values (TEAC): TEAC of Hc-5 (551.9 mg.TE/g) and Hc-6 (475.1 mg.TE/g). In the β-carotene/linoleic acid assay, the highest inhibition was from Hc-2 (40.0%), Hc-6 (39.0%), and Hc-3 (29.4%).