Evaluation of antibacterial and antioxidant activity of purple araçá essential oil (Psidium rufum, Myrtaceae)

IF 0.4 4区农林科学 Q4 VETERINARY SCIENCES

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia Pub Date : 2023-07-01 DOI:10.1590/1678-4162-12836

L. A. Branco, B. Laginestra, M. B. Marçal, Z. C. Gazim, I. L. Rahal, S.P.R. Herrig, M. Nunes, J. Simões, D. Gonçalves, R. Piau Junior

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Abstract

ABSTRACT The aim of this study was to evaluate the antibacterial and antioxidant activities of essential oil (EO) from fresh leaves of Psidium rufum. The EO was extracted by hydrodistillation and identified by gas chromatography coupled to mass spectrometry. The antibacterial activity was evaluated by determining the minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC). Antioxidant activity was determined by β-carotene/linoleic acid co-oxidation system, 2,2-diphenyl-1-picrylhydrazyl radical scavenging and iron reduction methods. Hydrocarbon sesquiterpenes were the predominant class, indicating 1,8 cineole, α-longipinene as major. The EO was tested against the bacteria Staphylococcus aureus and Pseudomonas aeruginosa (MIC = 2,500 µg/mL and MBC = 20,000 µg/mL); Enterococcus faecalis (MIC = 2,500µg/mL and MBC > 20,000µg/mL) and Escherichia coli (MIC > 20,000µg/mL and MBC > 20,000µg/mL). The EO showed antioxidant potential due to β-carotene/linoleic acid co-oxidation system, with 76.63% of oxidation inhibition (1.0mg/mL) and due to the iron reduction power (5,38 μmol Fe 2+ /mg sample). The results are promising in recommending this species for the development of food, cosmetic and pharmaceutical products.

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评价抗菌和抗氧化活性的紫色araca精油(Psidium rufum,桃金娘科)

摘要:本研究旨在研究金菖蒲鲜叶精油的抑菌和抗氧化活性。采用水蒸气蒸馏法提取，气相色谱-质谱联用法鉴定。通过测定最小抑菌浓度(MIC)和最小杀菌浓度(MBC)来评价其抑菌活性。采用β-胡萝卜素/亚油酸共氧化体系、2,2-二苯基-1-苦味酰肼自由基清除和铁还原法测定抗氧化活性。烃类倍半萜为优势类，以1,8桉叶油脑、α-长叶蒎烯为主。对金黄色葡萄球菌和铜绿假单胞菌进行抑菌试验(MIC = 2500µg/mL, MBC = 20000µg/mL);粪肠球菌(MIC = 2500µg/mL, MBC > 20000µg/mL)和大肠杆菌(MIC > 20000µg/mL, MBC > 20000µg/mL)。由于β-胡萝卜素/亚油酸共氧化体系，EO具有76.63%的氧化抑制率(1.0mg/mL)和5.38 μmol Fe 2+ /mg样品的铁还原能力，显示了EO的抗氧化潜力。研究结果可为食品、化妆品和医药产品的开发提供参考。

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来源期刊

Arquivo Brasileiro De Medicina Veterinaria E Zootecnia 农林科学-兽医学

CiteScore

0.80

自引率

25.00%

发文量

111

审稿时长

9-18 weeks

期刊介绍： Publica artigos originais de pesquisa sobre temas de medicina veterinária, zootecnia, tecnologia e inspeção de produtos de origem animal e áreas afins relacionadas com a produção animal. Atualmente a revista mantém 628 permutas (419 internacionais e 209 nacionais), sendo um verdadeiro suporte para o recebimento de periódicos pela Biblioteca da Escola. A partir de 1999, a Escola de Veterinária delegou à FEP MVZ Editora o encargo do gerenciamento e edição de todas suas publicações, inclusive do Arquivo, ficando somente com o apoio logístico (instalações, equipamentos, pessoal etc.). O apoio financeiro é exercido pelo CNPq/FINEP e pela própria FEP MVZ.