The effect of Combined Treatment with Sodium Dichloroisocyanurate and Electron Beam Irradiation in Controlling Mold (Lasiodiplodia theobromae) on Star Apples
Main Article Content
Abstract
Lasiodiplodia theobromae causes decay of star apple fruits (Chrysophyllum cainino) during harvest, transport and storage. If the irradiation dose is higher than 800 Gy, this mold will be controlled. However, the quality of star apple was significantly changed when they were irradiated at the dose higher than 0.6 kGy by electron beam (EB). To keep irradiation dose under 0.6kGy, the synergic effect of the combined treatment of EB irradiation and sodium dichloroisocyanurate (NaDCC) was investigated. In this study, star apples were pretreated with NaDCC concentrations in range of 10 -70 ppm in order to decrease the growth of mold and extend the shelf-life of treated star apples. The results showed that pretreatment with 20 ppm NaDCC had also kept the color and reduced disease of stored star apple. Dipping star apples into 20 ppm NaDCC solution before irradiating at 400 Gy and 600 Gy could be chosen as the best way to inhibit the development of Lasiodiplodia theobromae and extend the shelf life of star apple in the trading condition (7 days, 9oC).
Article Details
Keywords
star apple, electron beam, irradiation, phytosanitary, pretreatment
References
[2] V.K. Le, “star apple tree (Chrysophyllum cainito)”. [Internet].[Cited 2017 march 28]. Available form: URL: http://www.khoahocchonhanong.com.vn/, 2017.
[3]. Q. Hong, “Pest control for star apple tree”. [Internet]. [Cited 2017 march 28]. Available form: URL: http://thongtinkhcn.com.vn/, 2017.
[4] G. Blank and D. Corrigan, “Comparison of resistance of fungal spores to gamma and electron beam radiation”. International Journal of Food Microbiology. 26, pp. 269–277, 1995.
[5] G.R. Dychdala, “Chlorine and chlorine compounds”. In: Block, S.S. (Ed.), Disinfection, Sterilization, and Preservation. Lea and Febiger, Philadelphia, PA, USA, pp. 157–182, 1983.
[6] T. Suslow, “Postharvest Chlorination Basic Properties and Key Points for Effective Disinfection, Publication”.Publication 8003, University of California, Oakland, CA, USA, 1997.
[7] R.D. Jeong, E.H. Chu, E.J. Shin, E.S. Lee, Y.S. Kwak and H.J. Park, “Antifungal effect of gamma irradiation and sodium dichloroisocyanurate against Penicillium expansum on pears”, Letters in Applied Microbiology, 61, pp. 437-445, 2015.
[8] J.H. Ekman, M. Clayton, W.V. Biasi, E.J. Mitcham, “Interactions between 1-MCP concentration, treatment interval and storage time for ‘Bartlett’ pears”, Postharvest Biology and Technology, 31, pp. 127–136, 2004.
[9] F. Zhang, Y. Wang, L. Li, T. Kiu, “ Effect of phosphine fumigation on postharvest quality of four chinese cut flower species”, Postharvest Biology and Technology, 86, pp. 67-72, 2013.
[10] K. Zhang, Y. Deng, H. Fu, Q. Weng, “Effects of Co-60 gamma-irradiation and refrigerated storage on the quality of Shatang mandarin”, Food Science and Human Wellness, 3, pp. 9–15, 2014.
[11] A.S. Khan, N. Ahmad, A.U. Malik, M. Amjad, “Cold storage influences the postharvest pericarp browning and quality of litchi”, International Journal of Agriculture and Biology, 14, pp. 389–394.
[12] M.N. Adindu, J.O. Williams, E.C. Adiele, “Preliminary Storage Study on African Star Apple”, Plant Foods for Human Nutrition, 58, pp. 1–9, 2003.
[13] M. Beyers, A.C. Thomas, A.J. Vantonder, “Irradiation of subtropical fruits.1. Compositional tables of mango, papaya, strawberry and litchi fruits at the sdible-ripe stage”, Journal of Agricultural and Food Chemistry, 27, pp. 37-42, 1979.
[14] M. Rezaee, M. Almassi, S. Minaei, and F. Paknejad, “Impact of post-harvest radiation treatment timing on shelf life and quality characteristics of potatoes”, Journal of Food Science and Technology, 50, pp. 339–345, 2013.
[15] K.H. kim, H.S. Yook, “Effect of gamma irradiation on quality of kiwifruit (Actinidia deliciosa var. deliciosa cv. Hayward)”, Radiation Physics and Chemistry, 78, pp. 414-421, 2009.
[16] M.H. Lai and N.D. Phan, “Effect of various washing solution and washing conditions on quality of fresh - cut lettuce”, Science & Technology Development, 9, pp. 71-76, 2006.
[17] E. Salem and Z. Moussa, “Extending the shelf-life of pear fruits by using gamma irradiation”, Arab Journal of Nuclear Sciences and Applications, 47, pp. 231–238, 2014.