Efeito Da Extração Assistida Por Ultrassom Nos Teores De Compostos Fenólicos E Atividade Antioxidante De Extratos De Folha E Flor De Salva-Do-Marajó (Hyptis Crenata Pohl Ex Benth.)

Cardoso, Raiane Vieira; Santos, Samíria de Jesus Lopes; Araújo, Adriano Lucena de; Araújo, Jean Aquino de; Gandra, Eliézer Ávila

doi:10.34117/bjdv6n8-540

Cited by 2 publications

(1 citation statement)

References 13 publications

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“…The inhibition values obtained were 42.6-79.9%, 24.5-71.4%, and 14.2-94.0%, respectively. In another assay, using the ABTS method, the inhibition of leaves and flowers of H. crenata at different extraction times was 26.0-65.8% for the leaves and 55.6-84.4% for the flowers [35].…”

Section: Antioxidant Activitymentioning

confidence: 99%

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

et al. 2023

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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 (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%).

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Section: Antioxidant Activitymentioning

confidence: 99%