Tags

Type your tag names separated by a space and hit enter

Antifungal activity of plant-derived compounds and their synergism against major postharvest pathogens of longan fruit in vitro.
Int J Food Microbiol. 2018 Apr 20; 271:8-14.IJ

Abstract

The aim of this study was to find alternatives to conventional synthetic fungicides to control postharvest decay of longan fruit. The antifungal potential of thymol, carvacrol and trans-cinnamaldehyde was evaluated against four major longan pathogens, Lasiodiplodia spp., Phomopsis spp., Pestalotiopsis spp. and Geotrichum candidum, using vapor phase and direct contact methods. The vapor phase of all active compounds was more effective on fungal growth than direct contact. A volatile vapor of thymol and carvacrol had strong antifungal activity against the tested fungi, exhibiting minimum inhibitory concentration (MIC) in the range of 40 to 80 mg/L air; trans-cinnamaldehyde showed the least efficiency, with MIC ranging from 80 to 160 mg/L air for G. candidum and Phomopsis spp., while it could not inhibit Lasiodiplodia spp. and Pestalotiopsis spp. at 160 mg/L air. The minimum fungicidal concentration (MFC) of thymol and carvacrol varied from 40 to 80 mg/L air, while trans-cinnamaldehyde completely inhibited the mycelial growth of the tested fungi at higher concentrations. Mycelial growth of all tested fungi decreased with increasing active compound concentration, except for trans-cinnamaldehyde. Thymol proved to be the most effective compound against the four tested fungi, with effective concentration 50 (EC50) of 5.68 ± 0.59, 6.86 ± 0.52, 8.27 ± 0.22 and 9.99 ± 1.28 mg/L air for Lasiodiplodia spp., Phomopsis spp., Pestalotiopsis spp. and G. candidum, respectively. Fungal growth curves were adequately fitted (0.958 < R2 < 0.996) by a modified Gompertz model. For all tested fungi, the lag phase (λ) of fungal mycelia exposed to thymol and carvacrol increased, while the maximum colony diameter (A) and maximum growth rate (vm) decreased. A combination of thymol and carvacrol exhibited an antagonistic effect against G. candidum but an indifferent effect against Lasiodiplodia spp., Phomopsis spp. and Pestalotiopsis spp.

Authors+Show Affiliations

Department of Packaging and Materials Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand; Postharvest Technology Innovation Center, Commission on Higher Education, Bangkok 10400, Thailand.Department of Plant Pathology, Faculty of Agriculture, Kasetsart University, Bangkok 10900, Thailand; Postharvest Technology Innovation Center, Commission on Higher Education, Bangkok 10400, Thailand.National Metal and Materials Technology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand; National Nanotechnology Center, National Science and Technology Development Agency, Pathum Thani 12120, Thailand.Department of Packaging and Materials Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand.Department of Packaging and Materials Technology, Faculty of Agro-Industry, Kasetsart University, Bangkok 10900, Thailand; Postharvest Technology Innovation Center, Commission on Higher Education, Bangkok 10400, Thailand. Electronic address: vanee.c@ku.ac.th.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

29459244

Citation

Suwanamornlert, P, et al. "Antifungal Activity of Plant-derived Compounds and Their Synergism Against Major Postharvest Pathogens of Longan Fruit in Vitro." International Journal of Food Microbiology, vol. 271, 2018, pp. 8-14.
Suwanamornlert P, Sangchote S, Chinsirikul W, et al. Antifungal activity of plant-derived compounds and their synergism against major postharvest pathogens of longan fruit in vitro. Int J Food Microbiol. 2018;271:8-14.
Suwanamornlert, P., Sangchote, S., Chinsirikul, W., Sane, A., & Chonhenchob, V. (2018). Antifungal activity of plant-derived compounds and their synergism against major postharvest pathogens of longan fruit in vitro. International Journal of Food Microbiology, 271, 8-14. https://doi.org/10.1016/j.ijfoodmicro.2018.02.009
Suwanamornlert P, et al. Antifungal Activity of Plant-derived Compounds and Their Synergism Against Major Postharvest Pathogens of Longan Fruit in Vitro. Int J Food Microbiol. 2018 Apr 20;271:8-14. PubMed PMID: 29459244.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Antifungal activity of plant-derived compounds and their synergism against major postharvest pathogens of longan fruit in vitro. AU - Suwanamornlert,P, AU - Sangchote,S, AU - Chinsirikul,W, AU - Sane,A, AU - Chonhenchob,V, Y1 - 2018/02/10/ PY - 2017/05/23/received PY - 2018/02/07/revised PY - 2018/02/09/accepted PY - 2018/2/21/pubmed PY - 2018/6/15/medline PY - 2018/2/21/entrez KW - Antifungal activity KW - Carvacrol KW - Longan KW - Postharvest decay KW - Thymol KW - trans-Cinnamaldehyde SP - 8 EP - 14 JF - International journal of food microbiology JO - Int. J. Food Microbiol. VL - 271 N2 - The aim of this study was to find alternatives to conventional synthetic fungicides to control postharvest decay of longan fruit. The antifungal potential of thymol, carvacrol and trans-cinnamaldehyde was evaluated against four major longan pathogens, Lasiodiplodia spp., Phomopsis spp., Pestalotiopsis spp. and Geotrichum candidum, using vapor phase and direct contact methods. The vapor phase of all active compounds was more effective on fungal growth than direct contact. A volatile vapor of thymol and carvacrol had strong antifungal activity against the tested fungi, exhibiting minimum inhibitory concentration (MIC) in the range of 40 to 80 mg/L air; trans-cinnamaldehyde showed the least efficiency, with MIC ranging from 80 to 160 mg/L air for G. candidum and Phomopsis spp., while it could not inhibit Lasiodiplodia spp. and Pestalotiopsis spp. at 160 mg/L air. The minimum fungicidal concentration (MFC) of thymol and carvacrol varied from 40 to 80 mg/L air, while trans-cinnamaldehyde completely inhibited the mycelial growth of the tested fungi at higher concentrations. Mycelial growth of all tested fungi decreased with increasing active compound concentration, except for trans-cinnamaldehyde. Thymol proved to be the most effective compound against the four tested fungi, with effective concentration 50 (EC50) of 5.68 ± 0.59, 6.86 ± 0.52, 8.27 ± 0.22 and 9.99 ± 1.28 mg/L air for Lasiodiplodia spp., Phomopsis spp., Pestalotiopsis spp. and G. candidum, respectively. Fungal growth curves were adequately fitted (0.958 < R2 < 0.996) by a modified Gompertz model. For all tested fungi, the lag phase (λ) of fungal mycelia exposed to thymol and carvacrol increased, while the maximum colony diameter (A) and maximum growth rate (vm) decreased. A combination of thymol and carvacrol exhibited an antagonistic effect against G. candidum but an indifferent effect against Lasiodiplodia spp., Phomopsis spp. and Pestalotiopsis spp. SN - 1879-3460 UR - https://www.unboundmedicine.com/medline/citation/29459244/Antifungal_activity_of_plant_derived_compounds_and_their_synergism_against_major_postharvest_pathogens_of_longan_fruit_in_vitro_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0168-1605(18)30060-6 DB - PRIME DP - Unbound Medicine ER -