J. F. Freitas Filho, Luís Eduardo Gomes de Holanda, Clécio Sousa Ramos
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引用次数: 1
Abstract
Abstract. Fatty acid profiles and antimicrobial activity of ten oils from tropical fruit seeds were determined. The fatty acid composition of the oils was determined by GC-MS analysis that allowed identification of oleic, linoleic, palmitic, and stearic acids as major constituents. Oil samples exhibited antimicrobial activity against fungus, yeast, Gram-positive and Gram-negative bacteria. Eugenia uniflora seed oil was the most active for bacteria with Minimum Inhibitory Concentration (MIC) values from 39.0 to 1250 μg mL-1. E. uniflora oil showed strong activity against bacteria Staphylococcus aureus, Enterococcus faecalis and Klebsiella pneumoniae as wells as for yeast Candida utilis with MIC of 312.5 μg mL-1. The carboxylic group of acids identified was associated with the antimicrobial activity considering that the esterified oils showed MIC greater than 2000 μg mL-1. Our study showed that the tropical fruit seeds have antimicrobial potential and their residues from the fruit juice industry can be used as a source of bioactive products.
Keywords: Bacteria; seed oil; fatty acids; tropical fruits; fung.
Resumen. Se determinaron los perfiles de ácidos grasos y la actividad antimicrobiana de diez aceites de semillas de frutas tropicales. La composición de ácidos grasos de los aceites se determinó mediante análisis CG-EM que permitió identificar los ácidos oleico, linoleico, palmítico y esteárico como constituyentes mayoritarios. Las muestras de aceite exhibieron actividad antimicrobiana contra hongos, levadura, Gram-positivas y bacterias Gram-negativas. El aceite de semilla de Eugenia uniflora fue el más activo para bacterias con valores de Concentración Inhibitoria Mínima (CIM) de 39,0 a 1250 μg mL-1. El aceite de E. uniflora mostró una fuerte actividad contra las bacterias Staphylococcus aureus, Enterococcus faecalis y Klebsiella pneumoniae, así como contra la levadura Candida utilis con CIM de 312.5 μg mL-1. El grupo de ácidos carboxílicos identificado se asoció con la actividad antimicrobiana considerando que los aceites esterificados presentaron CIM major a 2000 μg mL-1. Nuestro estudio mostró que las semillas de frutas tropicales tienen potencial antimicrobiano y sus residuos de la industria de jugos de frutas pueden usarse como fuente de productos bioactivos.
Palabras clave: Bacteria; aceite de semilla; ácidos grasos; frutas tropicales; hongo.
摘要研究了10种热带水果种子油的脂肪酸谱和抑菌活性。通过GC-MS分析确定了油的脂肪酸组成，确定了油酸、亚油酸、棕榈酸和硬脂酸为主要成分。油脂样品对真菌、酵母菌、革兰氏阳性菌和革兰氏阴性菌均有抑菌活性。单花Eugenia籽油对细菌的最小抑制浓度(MIC)为39.0 ~ 1250 μ mL-1，活性最高。对金黄色葡萄球菌、粪肠球菌、肺炎克雷伯菌及念珠菌均有较强的抑菌活性，MIC为312.5 μg mL-1。考虑到酯化油的MIC大于2000 μ mL-1，所鉴定的羧基酸与抗菌活性有关。我们的研究表明，热带水果种子具有抗菌潜力，果汁工业的残留物可以作为生物活性产品的来源。关键词:细菌;籽油;脂肪酸;热带水果;冯。Resumen。用活性抗菌剂测定热带果树半叶蝉的致病菌ácidos。La composición de ácidos grasos de los aceites se determinó mediante análisis CG-EM que permitió identiar los ácidos oleico, linoleico, palmítico y esteárico como constituyentes mayoritarios。Las muestras de aceite exhibition:对革兰氏阴性菌的革兰氏阳性菌、左旋肾上腺素、革兰氏阳性菌的抗菌活性。单花尤金菊半胱氨酸酯(El aceite de semilla de Eugenia uniflora fute El más activo para bacterias convalores de Concentración Inhibitoria Mínima, CIM) de 39,0 ~ 1250 μg mL-1。金黄色葡萄球菌，粪肠球菌，肺炎克雷伯菌，así左旋假丝酵母菌与cml (312.5 μg mL-1)对照。El grupo de ácidos carboxílicos identificado se asoció与活性抗菌剂的对比研究表明，CIM主要浓度为2000 μg mL-1。Nuestro estudio mostró que las semillas de frutas tropical ales(热带水果)研究潜在的抗菌剂，通过对植物工业残留物的研究，对植物产品的生物活性进行研究。菌丝;细菌;semilla;一种把握;举几个热带;hongo村。
期刊介绍：
Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance.
Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.
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