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Date Published: 30/12/2020
Online Published: 30/12/2020
Abstract Views: 405
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DOI: https://doi.org/10.54607/hcmue.js.17.12.2799(2020)
Issue
Vol. 17 No. 12 (2020)
Section
Articles
How to Cite
Phạm , T. H. V., Lê , S. N., & Nguyễn , V. L. (2020). THE EFFECTS OF LOW MOLECULAR WEIGHT CHITOSAN AND NANO SIO2 ON THE QUALITY OF POST-HARVEST GUAVA (PSIDIUM GUAJAVA L.). HCMUE Journal of Science, 17(12), 2143. https://doi.org/10.54607/hcmue.js.17.12.2799(2020)

THE EFFECTS OF LOW MOLECULAR WEIGHT CHITOSAN AND NANO SIO2 ON THE QUALITY OF POST-HARVEST GUAVA (PSIDIUM GUAJAVA L.)

Thị Hà Vân Phạm , Sĩ Ngọc Lê , Văn Lượng Nguyễn

Main Article Content

Abstract

 

Guava (Psidium guajava L.) is a climacteric fruit that continues to ripen after harvest. Therefore, it is becoming soft-textured and color changing. It is also has a short period of availability. In this study, we evaluated the antimicrobial activity of the complex of low molecular weight chitosan and nano SiO2against microbials isolated from spoiled guava in post-harvest period. Taiwan-origin guavas were treated with a mixture of 2% chitosan (MW 44.5 kDa) and 0.02% nano SiO2at 15 ± 1oC, 80 ± 5% RH. The results show that they had slow changes in the color, hardness, vitamin C content, deterioration rate, total dissolved solids, weight loss rate, and lasted twice as long (12 days) as those on the control ones (six days).

 

 

Keywords

Chitosan, Guava, nano SiO2, preservation

Article Details

References

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