通过分子蒸馏得到的月桂精油馏分具有较强的抗氧化和抗菌活性

Q4 Agricultural and Biological Sciences

AgriScientia Pub Date : 2022-06-30 DOI:10.31047/1668.298x.v39.n1.35407

Ana Judith Lambir Jacobo, M. E. Carezzano, P. R. Quiroga, N. Grosso

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引用次数: 2

摘要

本研究旨在分析通过短路径分子蒸馏获得的月桂精油及其组分的化学成分、抗氧化和抗菌活性。根据化学成分，可以说LEO及其组分被证明具有抗氧化活性，因为它们都具有高含量的总酚含量（TPC）。采用短路径分子蒸馏法对具有超强抗氧化活性的精油馏分进行了分离。月桂醇残基（LR）表现出最大的抗氧化活性，ABTS自由基阳离子（TEAC-ABTS）测定和TPC的trolox等效抗氧化能力值较高。此外，LR的IC50-DPPH值最低。就抗菌活性而言，所有测试的天然产品对所有食源性致病微生物都有影响。LEO及其组分对革兰氏阳性菌和革兰氏阴性菌表现出抗菌、抑菌或杀菌活性。通过分子蒸馏获得的LEO及其馏分可以用作抗菌剂和食品防腐剂以防止氧化。此外，消费者认为在食品中添加LEO或其组分是积极的。

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Fractions of laurel essential oil obtained by molecular distillation with greater antioxidant and antimicrobial activities

This study aimed to analyze the chemical composition and the antioxidant and antimicrobial activities of Laurus nobilis L. essential oil (LEO) and its fractions obtained by short-path molecular distillation. According to the chemical composition, it can be said that LEO and its fractions proved to have antioxidant activity sinceboth have a high content of total phenolic content (TPC). Short-path molecular distillation was used to separate essential oil fractions with superiorantioxidant activity. Laurel residue (LR) exhibited the greatest antioxidant activity, with higher values of trolox equivalent antioxidant capacity with ABTS radical cation (TEAC-ABTS) assay and TPC. In addition, LR had the lowest value of IC50-DPPH. For antimicrobial activity, all natural products tested had an effect on all foodborne pathogenic microorganisms. LEO, as well as its fractions, showed antimicrobial, bacteriostatic, or bactericidal activity against Gram-positive and Gram-negative bacteria. The LEO and its fractions obtained by molecular distillation can be used as antimicrobials and as food preservatives to prevent oxidation. Also, consumers considered the addition of LEO or its fractions in food products as positive.

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来源期刊

AgriScientia Agricultural and Biological Sciences-Agronomy and Crop Science

CiteScore

0.30

自引率

0.00%

发文量

审稿时长

22 weeks

期刊介绍： AgriScientia es una revista de acceso abierto, de carácter científico-académico, gestionada por el Área de Difusión Científica de la Facultad de Ciencias Agropecuarias de la Universidad Nacional de Córdoba, Argentina. La revista recibe artículos en los idiomas español e inglés. El objetivo de esta publicación es la difusión de los resultados de investigaciones de carácter agronómico. Está destinada a investigadores, estudiantes de pregrado, grado y posgrado, profesionales en el área de las ciencias agropecuarias y público en general interesado en las temáticas relacionadas. Su periodicidad es semestral. Los artículos se reciben durante todo el año. Los tipos de documentos que se publican son artículos científicos, comunicaciones y revisiones.