Jurnal Laboratorium Khatulistiwa
Vol 9, No 2 (2026): MEI 2026

Antibacterial, Antioxidant, and Sun Protection Activities of Methanolic Extract of Bougainvillea glabra Flowers

Farhana Halimah Rusyda (Department of Pharmaceutical and Food Analysis, Poltekkes Kemenkes Jakarta II)
Chintya Ferda Intansari (Department of Pharmaceutical and Food Analysis, Poltekkes Kemenkes Jakarta II)

Article Info

Publish Date
31 May 2026

Abstract

Bougainvillea glabra is a popular ornamental plant in Indonesia that contains various phytochemicals that may exhibit antibacterial, antioxidant, and photoprotective activities. This study aimed to evaluate the antibacterial activity, antioxidant capacity, and SPF value of methanolic extracts of B. glabra flowers. Antibacterial activity was evaluated using the disc diffusion method, while antioxidant activity and SPF value were determined using UV-Vis spectrophotometry. The extract showed antibacterial activity against S. aureus, strong antioxidant activity (IC50 = 62.13 µg/mL), and an SPF value of 12.74. Methanolic extract of B. glabra flowers has potential as a natural antibacterial, antioxidant, and sunscreen agent.

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Journal Info
Jurnal Laboratorium Khatulistiwa
Website

Abbrev

JLK

Publisher

Poltekkes Kemenkes Pontianak

Subject

Biochemistry, Genetics & Molecular Biology Education Health Professions Immunology & microbiology Materials Science & Nanotechnology Medicine & Pharmacology

Description

The aim of this journal publication is to disseminate the conceptual thoughts or ideas and research results that have been achieved in the area of Medical Laboratory. Jurnal Laboratorium Khatulistiwa particularly focuses on the main problems in the development of the Medical Laboratory health ...