The efficacy of combined application of edible coatings and essential oil in mango preservation

My Dong Lieu , Nguyen Nhat Ha Ngo, Thuy Linh Lieu , Kim Thach Nguyen , Thi Kim Thuy Dang
Author affiliations

Authors

  • My Dong Lieu Faculty of Food Technology, University of Food Industry, 140 Le Trong Tan, Ho Chi Minh City, Viet Nam
  • Nguyen Nhat Ha Ngo Faculty of Food Technology, University of Food Industry, 140 Le Trong Tan, Ho Chi Minh City, Viet Nam
  • Thuy Linh Lieu Faculty of Food Technology, University of Food Industry, 140 Le Trong Tan, Ho Chi Minh City, Viet Nam
  • Kim Thach Nguyen Dept. Chemistry-Biochemistry, Pham Ngoc Thach University of Medicine, 86/2 Thanh Thai, Ho Chi Minh City, Viet Nam
  • Thi Kim Thuy Dang Institute of Tropical Biology,9/621 Ha Noi highway, Ho Chi Minh City, Viet Nam

DOI:

https://doi.org/10.15625/2525-2518/56/4/10794

Keywords:

Aspergillus niger, antifungal activity, edible coatings, essential oil, mango

Abstract

The aim of this study was to examine the effect of lemongrass oil (Cympopogon citratus), citronella oil (Cymbopogon winterianus) and cajeput oil (Melaleuca leucadendron) on Aspergillus niger by agar diffusion method. The selected oil was combined with the edible film (chitosan 1% w/v or alginate 1% w/v) and applied to preserve Cat Chu mango (infected by A. niger at105 spore/ml) in 14 days at 30oC. The result showed that essential oils against Aspergillus niger significantly in which lemongrass oil was the most effective inhibitor with a minimum inhibitory concentration (MIC) was 10 μl/mL as compared to MIC of java lemongrass and Melaleuca alternifolia, was 20 μl / mL. The result of the mango preservation showed that, all of the control samples were completely decayed after 10 days of storage while the shelf life of the coated samples was longer than 10 days. The essential oils at high concentrations (10-20 μl / ml) have a negative impact on mango preservation, made fruits bruised on the surface and rapidly decay. The also indicated that, alginate (1% w/v) combines with lemongrass oil (5 μl/mL) maintained the antifungal effect after 14 days of preservation

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Published

06-08-2018

How to Cite

[1]
M. D. Lieu, N. N. Ha Ngo, T. L. Lieu, K. T. Nguyen, and T. K. T. . Dang, “The efficacy of combined application of edible coatings and essential oil in mango preservation”, Vietnam J. Sci. Technol., vol. 56, no. 4, pp. 458–467, Aug. 2018.

Issue

Section

Natural Products