Cinco novedades taxonómicas del género Sloanea restringidas a pequeños espacios de la selva pluvial central del Chocó y categorizadas en peligro crítico para Colombia

Ramírez-Moreno, Giovanny; Duque, Leonardo; Klinger-Braham, William

doi:10.51641/bioetnia.v8i1.8

Cited by 1 publication

(2 citation statements)

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“…Although ethnobotanical studies have provided significant information on the taxonomy and distribution of Sloanea species, knowledge about the chemical composition and biological effects of this genus is under-explored [4,6,8,12]. However, a recent study highlighted the biological activity of two extracts obtained from wild species of Sloanea, emphasizing their skincare properties.…”

Section: Introductionmentioning

confidence: 99%

“…In this research, the chemical and biological characteristics of two species, including an autochthonal species from the Colombian Pacific region are analyzed. Sloanea chocoana Pal.-Duque is a 10 m tall tree whose specific epithet refers to Chocó, the Colombian department where the species was first identified [9,12]. Sloanea pittieriana Steyerm.…”

Section: Introductionmentioning

confidence: 99%

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Sloanea chocoana and S. pittieriana (Elaeocarpaceae): Chemical and Biological Studies of Ethanolic Extracts and Skincare Properties

Quintero-Rincón,

Pino-Benítez,

Galeano

et al. 2023

Plants

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The Colombian Chocó is known for its rich biodiversity and to harbor plant species that are under-explored, including the genus Sloanea. This study aimed to analyze the chemical composition of derivatized ethanolic extracts from S. chocoana and S. pittieriana using BSTFA and TMCS through GC–MS, and to assess cell viability of immortalized human non-tumorigenic keratinocytes (HaCaT) and periodontal ligament fibroblast cells using crude extracts through MTS assay. Antioxidant and photoprotective properties were determined using DPPH assay and spectrophotometry. Antifungal activity of extracts against Candida species was developed following the CLSI standard M27, 4th ed. The sun protective factor (SPF) and UVA/UVB ratio values were calculated using the Mansur equation and the Boots star rating system. The critical wavelength (λc) was determined by calculating the integrated optical density curve’s area. The transmission of erythema and pigmentation was calculated through equations that use constants to calculate the flux of erythema and pigmentation. The GC–MS analysis identified 37 compounds for S. chocoana and 38 for S. pittieriana, including alkaloids, triterpenoids, and polyphenolics, among others. Both extracts exhibited proliferative effects on periodontal ligament fibroblasts, did not affect the viability of HaCaT cells, and showed excellent antioxidant activities (46.1% and 43.7%). Relevant antifungal activity was observed with S. pittieriana extract against Candida albicans (GM–MIC: 4 µg/mL), followed by C. auris and C. glabrata (GM–MIC: 32 µg/mL), while S. chocoana extract was active against C. albicans and C. glabrata (GM–MIC: 16 and 32 µg/mL, respectively). High SPF values (31.0 and 30.0), λc (393.98 and 337.81 nm), UVA/UVB ratio (1.5 and 1.2), and low percentage of transmission of erythema and pigmentation were determined for S. chocoana and S. pittieriana, respectively. Results showed that species of Sloanea constitute a promising alternative as ingredients for developing skincare products, and exhaustive studies are required for their sustainable uses.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%