Please use this identifier to cite or link to this item:
Title: Chemical composition and antimicrobial activity of Satureja montana byproducts essential oils
Author: Santos, Jéssica D.C.
Coelho, Elisabete
Silva, Rita
Passos, Cláudia P.
Teixeira, Pedro
Henriques, Isabel
Coimbra, Manuel A.
Keywords: Winter savory
Aromatic plants
Solvent-free microwave extraction
Minimal inhibitory concentration
Issue Date: 1-Oct-2019
Publisher: Elsevier
Abstract: Satureja montana is a worldwide consumed aromatic plant whose essential oils (EOs) are used as spice and preservative by food industry. Only the leaves are marketed, generating a large amount of stems as byproducts. It is possible that the EOs present in these byproducts represent a source of compounds with antimicrobial activity, as observed for the leaves. In this work, dried S. montana byproducts were used to extract EOs. Although differences were observed for the harvest year (0.42 ± 0.11 mg/g in 2016 and 0.14±0.07 mg/g in 2017), monoterpenoids were the major components, accounting for 84.4 to 97.6%, being carvacrol the most abundant component (825 – 950 μg/mg). Sesquiterpenoids accounted for 0.3 to 0.5%. Similar EOs yield and composition were obtained using solvent-free microwave extraction (16 min using 100 g of S. montana stems, previously, soaked in water and drained) or hydrodistillation (120 min using 1000 mL of water/ 100 g of dried S. montana stems). The in vitro minimal inhibitory concentrations (MICs) of S. montana EOs against Escherichia coli ATCC 25922, Salmonella enterica sv Anatum SF2, and Staphylococcus aureus ATCC 6538, which belong to pathogenic species with economic impact in poultry industry, were 225 μg/mL, 250 μg/mL, and 150 μg/mL, respectively. As these MICs are similar to the ones reported for carvacrol against the same or related strains, it can be concluded that carvacrol is the active compound in S. montana byproducts.
Peer review: yes
DOI: 10.1016/j.indcrop.2019.05.058
ISSN: 0926-6690
Publisher Version:
Appears in Collections:CESAM - Artigos
DBio - Artigos
QOPNA - Artigos
REQUIMTE - Artigos

Files in This Item:
File Description SizeFormat 
Santos_2019_preproof.pdf581.59 kBAdobe PDFView/Open

Formato BibTex MendeleyEndnote Degois 

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.