Combination of Cymbopogon citratus and Allium cepa essential oils increased antibacterial activity in leafy vegetables.
J Sci Food Agric
; 97(7): 2166-2173, 2017 May.
Article
en En
| MEDLINE
| ID: mdl-27611358
ABSTRACT
BACKGROUND:
Cymbopogon citratus and Allium cepa essential oils (EOs) are rich in terpenes and sulfur compounds respectively, both with antibacterial activity and different cell targets, supporting the idea that their combination can increase their efficacy.RESULTS:
Major constituents of C. citratus were geranial and neral, while A. cepa presented dipropyl disulfide and dipropyl trisulfide. Cymbopogon citratus and A. cepa EOs inhibited the in vitro growth of Escherichia coli O157H7 (minimal inhibitory concentrations of 2.21 and 5.13 g L-1 respectively), Salmonella Choleraesuis (3.04 and 1.28 g L-1 ), Listeria monocytogenes (1.33 and 2.56 g L-1 ) and Staphylococcus aureus (0.44 and 5.26 g L-1 ). Application of the EO combination to spinach caused a greater reduction in E. coli (2.34 log colony-forming units (CFU) g-1 ), S. Choleraesuis (2.94 log CFU g-1 ), L. monocytogenes (2.06 log CFU g-1 ) and S. aureus (1.37 log CFU g-1 ) compared with higher doses of individual EOs; a similar effect was observed for romaine lettuce. Individual and combined EOs caused a reduction in flavor acceptability level; however, no significant differences were found among odor acceptability of control vegetables and those treated with the EO combination and C. citratus EO.CONCLUSION:
Leafy vegetables treated with the EO combination showed higher antibacterial protection and odor acceptability compared with individual EO treatments. © 2016 Society of Chemical Industry.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Contexto en salud:
3_ND
Problema de salud:
3_neglected_diseases
/
3_zoonosis
Asunto principal:
Verduras
/
Aceites Volátiles
/
Extractos Vegetales
/
Spinacia oleracea
/
Cebollas
/
Cymbopogon
/
Conservación de Alimentos
/
Antibacterianos
Tipo de estudio:
Evaluation_studies
Idioma:
En
Revista:
J Sci Food Agric
Año:
2017
Tipo del documento:
Article
País de afiliación:
México