Evaluación de la actividad antimicrobiana in vitro de extractos de Persea americana (Aguacate) variedad Choquette sobre el crecimiento de Staphylococcus aureus y Escherichia coli
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Fecha
2020
Autores
Sierra Castrillo, Jhoalmis
Gómez-Rave, Lyz J
Muñoz, Adriana X
Ramírez-Hoyos, Faiber
Patiño-Rojas, Isaac
Zapata-Baron, Santiago
León-Rojas, David
Bermúdez-Pirela, Valmore
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Universidad del Zulia. Sistema de Servicios Bibliotecarios y de Información
Resumen
Las enfermedades infecciosas se encuentran entre las primeras causas de muerte a nivel mundial y la situación se agravada por la aparición progresiva de resistencia a las terapias farmacológicas convencionales. La Persea americana (aguacate), posee sustancias activas que regulan la proliferación de algunos microorganismos patógenos. El objetivo de esta investigación fue evaluar la actividad antimicrobiana y concentración mínima inhibitoria de extractos de Persea americana variedad Choquette sobre el crecimiento de S. aureus ATCC 29213 y E. coli ATCC 25922. La presente fue una investigación de tipo experimental en la que se utilizaron extractos de la cáscara, pulpa y semilla a partir de solventes orgánicos. Se determinó la concentración mínima inhibidora (CMI) y bactericida (CMB) de cada extracto utilizando placas de agar Mueller Hinton las cuales fueron inoculadas con la suspensión bacteriana ajustada. La CMI y CMB para la E. coli. Tratada con la cáscara (solvente hexano y el cloroformo) fue de (1/2)1000 mg/ml; la CMI y CMB para el S. aureus (con los solventes cloroformo y acetato de etilo) fue de (1/2)1000 mg/ml, el extracto de la pulpa no presentó actividad antimicrobiana para ambos microorganismos. Los resultados reflejan actividad antimicrobiana en cascara y semilla, por lo que se propone desarrollar nuevas investigaciones orientadas hacia la caracterización de estos compuestos con miras al desarrollo de fármacos antimicrobianos.
Infectious diseases are among the leading causes of death worldwide and the situation is aggravated by the progressive emergence of resistance to conventional drug therapies. The Persea americana (avocado), has active substances that regulate the proliferation of some pathogenic microorganisms. The objective of this research was to evaluate the antimicrobial activity and minimum inhibitory concentration of extracts of Persea americana variety Choquette on the growth of S. aureus ATCC 29213 and E. coli ATCC 25922. The present was an experimental investigation using extracts of the shell, pulp and seed from organic solvents. The minimum inhibitory (MIC) and bactericidal (MIB) concentration of each extract was determined using Mueller Hinton agar plates which were inoculated with the adjusted bacterial suspension. The MIC and CMB for E. coli. Treated with the shell (hexane solvent and chloroform) was (1/2)1000 mg/ml; the MIC and CMB for S. aureus (with the solvents chloroform and ethyl acetate) was (1/2)1000 mg/ml, the pulp extract did not present antimicrobial activity for both microorganisms. The results reflect antimicrobial activity in shell and seed, so it is proposed to develop further research aimed at the characterization of these compounds for the development of antimicrobial drugs.
Infectious diseases are among the leading causes of death worldwide and the situation is aggravated by the progressive emergence of resistance to conventional drug therapies. The Persea americana (avocado), has active substances that regulate the proliferation of some pathogenic microorganisms. The objective of this research was to evaluate the antimicrobial activity and minimum inhibitory concentration of extracts of Persea americana variety Choquette on the growth of S. aureus ATCC 29213 and E. coli ATCC 25922. The present was an experimental investigation using extracts of the shell, pulp and seed from organic solvents. The minimum inhibitory (MIC) and bactericidal (MIB) concentration of each extract was determined using Mueller Hinton agar plates which were inoculated with the adjusted bacterial suspension. The MIC and CMB for E. coli. Treated with the shell (hexane solvent and chloroform) was (1/2)1000 mg/ml; the MIC and CMB for S. aureus (with the solvents chloroform and ethyl acetate) was (1/2)1000 mg/ml, the pulp extract did not present antimicrobial activity for both microorganisms. The results reflect antimicrobial activity in shell and seed, so it is proposed to develop further research aimed at the characterization of these compounds for the development of antimicrobial drugs.
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Persea, Extractos vegetales, Escherichia coli, Staphylococcus aureus, Antibacterianos, Plant extracts, Anti-bacterial agents.