Enzyme-assisted extraction of essential oils from thyme (Thymus capitatus L.) and rosemary (Rosmarinus officinalis L.): Impact on yield, chemical composition and antimicrobial activity
Autor: | Maroua Jemli, Sana Dallali, Hervé Casabianca, Houcine Sebei, Hedia Chaâbane, Karim Hosni, Imed E. Hassen |
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Přispěvatelé: | Institut National de Recherche et d'Analyse Physico-Chimique (INRAP), Laboratoire des méthodes et techniques d'analyses, Département de Production Végétale, Ecole Supérieure d'Agriculture de Mograne (ESA Mograne), Produits naturels (2011-2014), Institut des Sciences Analytiques (ISA), Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS), DGRST (Tunisie), CNRS (France) n° 24916 'Valorisation intégrée des métabolites secondaires d'origine végétale : vers de nouveaux biopesticides.', VIMSOV |
Rok vydání: | 2013 |
Předmět: |
0106 biological sciences
Cellulase Antimicrobial activity 01 natural sciences Essential oil Rosmarinus law.invention chemistry.chemical_compound 0404 agricultural biotechnology food [CHIM.ANAL]Chemical Sciences/Analytical chemistry law 010608 biotechnology Botany Carvacrol Food science Cellulose 2. Zero hunger biology 04 agricultural and veterinary sciences Antimicrobial biology.organism_classification 040401 food science food.food Thymus capitatus chemistry Enzymes-assisted extraction Officinalis biology.protein Rosmarinus officinalis Agronomy and Crop Science |
Zdroj: | Industrial Crops and Products Industrial Crops and Products, Elsevier, 2013, 47, pp.291-299. ⟨10.1016/j.indcrop.2013.03.023⟩ |
ISSN: | 0926-6690 |
Popis: | International audience; The main goal of the present study is to evaluate the effects of enzymatic pre-treatment on the yields, chemical composition and antimicrobial activities of the essential oils of Thymus capitatus and Rosmarinus officinalis leaves. In T. capitatus, application of cellulase, hemicellulase and combination of both enzymes induced 63.55, 23.72 and 109% increase in the essential oil yields. It also induced increment by 2.7, 31 and 38% in the amount of its main component carvacrol. In R. officinalis, enzymatic treatment resulted in enhanced oil yields by 5, 50 and 20% for cellulase, hemicellulase and the combination of both enzymes, respectively. In contrast to T. capitatus, the amount of the main component 1,8-cineole dropped by 17.73, 36.92 and 15.46% in oils extracted from cellulase, hemicellulase and cellulose/hemicellulase treated samples of R. officinalis. At the same time, the essential oils (at 1/32 and 1/4 dilution for T. capitatus and R. officinalis, respectively) were evaluated for their antimicrobial activities against 6 food-borne pathogens (Escherichia coli, Salmonella typhimurium, Streptococcus agalactiae, Staphylococcus aureus, Enterococcus feacium and Candida albicans). All investigated oils exhibited antimicrobial activity with those issued from hemicellulase treated samples being the most effective. Enzymatic pre-treatment could be useful for enhancing yield and antimicrobial activity of the essential oils, and hold a good potential for use in food and pharmaceutical industries |
Databáze: | OpenAIRE |
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