Robusta coffee extracts inhibit quorum sensing activity in Chromobacterium violaceum and reduce biofilms against Bacillus cereus and Staphylococcus aureus-Reference-Cited by-同舟云学术

Robusta coffee extracts inhibit quorum sensing activity in Chromobacterium violaceum and reduce biofilms against Bacillus cereus and Staphylococcus aureus

Published:2022-10-12 Issue: Volume: Page:2391-2398
ISSN:2231-0916
Container-title:Veterinary World
language:en
Short-container-title:Vet World

Author:

Tritripmongkol Porwornwisit¹,Sangkanu Suthinee²^ORCID,Boripun Ratchadaporn³^ORCID,Jeenkeawpieam Juthatip³^ORCID,Chuprom Julalak²,Nissapatorn Veeranoot²^ORCID,Pereira Maria de Lourdes⁴^ORCID,Paul Alok K.⁵^ORCID,Mitsuwan Watcharapong⁶^ORCID

Affiliation:

1. Center of Scientific Equipment for Advanced Research, Thammasat University, Pathumthani 12120, Thailand.

2. School of Allied Health Sciences, Southeast Asia Water Team (SEA Water Team), World Union for Herbal Drug Discovery, and Research Excellence Center for Innovation and Health Products, Walailak University, Nakhon Si Thammarat, Thailand.

3. Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat, 80160, Thailand; One Health Research Center, Walailak University, Nakhon Si Thammarat, 80160, Thailand.

4. CICECO-Aveiro Institute of Materials and Department of Medical Sciences, University of Aveiro, Aveiro, 3810-193, Portugal.

5. School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia.

6. Akkhraratchakumari Veterinary College, Walailak University, Nakhon Si Thammarat, 80160, Thailand; One Health Research Center, Walailak University, Nakhon Si Thammarat, 80160, Thailand; Center of Excellence in Innovation of Essential Oil, Walailak University, Nakhon Si Thammarat, 80160, Thailand.

Abstract

Background and Aim: Bacillus cereus and Staphylococcus aureus cause foodborne intoxication in humans and animals. Pathogens can produce biofilms controlled by the quorum sensing system. The study aimed to investigate the antibacterial, antibiofilm, and anti-quorum sensing activities of Coffea canephora P. ex Fr. (Robusta coffee) extracts against B. cereus and S. aureus. Materials and Methods: Ethanol extracts of fruit peels and seeds of Robusta coffee were tested for antibacterial activity against B. cereus and S. aureus using a broth microdilution assay. Reduction of the biofilm formation and elimination of the viability of mature biofilm-grown cells of B. cereus and S. aureus were determined. Inhibition of quorum sensing activity in Chromobacterium violaceum by the extracts was investigated using the disk diffusion method and flask incubation assay. Results: Fresh fruit peel extract showed the strongest antibacterial activity against B. cereus and S. aureus with minimum inhibitory concentration (MIC) values of 2 and 4 mg/mL, respectively. However, the extracts did not inhibit Escherichia coli, avian pathogenic E. coli, and Pseudomonas aeruginosa at 8 mg/mL. Significant inhibition of biofilm formation at 1/2 × MIC of the fresh peel extract was detected in B. cereus (56.37%) and S. aureus (39.69 %), respectively. At 8 × MIC of the fresh peel extract, a significant elimination of the mature biofilm viability was detected in B. cereus (92.48%) and S. aureus (74.49%), respectively. The results showed that fresh and dried peel fruit extracts at 1/2 × MIC significantly reduced violacein production with the highest percentage inhibition ranging from 44.53 to 47.48% at 24 h (p ≤ 0.05). Conclusion: The results of the present study suggest the potential therapeutic benefits of Robusta coffee extracts in inhibiting the growth, biofilm, and quorum sensing of both B. cereus and S. aureus. The results put forward an alternative strategy to control the foodborne intoxications caused by both pathogens.

Funder

Centro de Investigação em Materiais Cerâmicos e Compósitos

Publisher

Veterinary World

Subject

General Veterinary

Link

http://www.veterinaryworld.org/Vol.15/October-2022/4.pdf

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