Effects of shellac and modified coconut oil on the quality of gamma irradiated rambutan fruit
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Publication Details
Author list: Jitareerat P., Sripong K., Puangnim S., Aiamla-Or S., Limmatvapirat S., Uthairatanakij A.
Publisher: International Society for Horticultural Science (ISHS)
Publication year: 2018
Volume number: 1210
Start page: 139
End page: 144
Number of pages: 6
ISBN: 9789462612075
ISSN: 0567-7572
eISSN: 2406-6168
Languages: English-Great Britain (EN-GB)
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Abstract
The aim of this study was to investigate the combined effects of shellac (SH), modified coconut oil (MCO), and gamma irradiation on controlling fruit rot and the quality of rambutan cultivar 'Rong rien'. Naturally infected fruit were coated with the mixture of 4% SH and 2% MCO (SH-MCO) solutions and sequentially irradiated with 400 Gy gamma ray. Non-coated-irradiated fruit and gamma irradiated fruit served as the controls. All fruit samples were stored at 13ฐC for 10 days. Treatment of fruit with gamma irradiation and SH-MCO significantly retarded fruit rot disease severity, and slightly promoted the development of pericarp color (a* and Hue values), however, there were no significant differences in sprintern color with non-coated-irradiated fruit. The treatments of SH-MCO with gamma ray delayed weight loss, maintained respiration rate and firmness throughout the storage period whilst ethylene production suppressed immediately after treating on the beginning date and then increased the same as other treatments. This result suggested that coating with a mixture of SH-MCO solution may have the property to delay fruit rot and maintain gamma irradiated fruit quality.
Keywords
Ionizing irradiation, Wax coating
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