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Postharvest Quality Changes in Phu-Chawa Pineapple during Low Temperature Storage
Kamonwan Sangsoy, Kietsuda Luengwilai

Department of Horticulture, Faculty of Agriculture at Kamphaeng Saen, Kasetsart University, Kamphaeng-Saen Campus, Nakhon Pathom, Thailand


Abstract

‘Phu-Chawa- pineapple is a relatively new cultivar of a good fresh consumption quality. However, there is still a lack of information on quality change during low temperature storage of this new cultivar. Being a hybrid between resistant and susceptible cultivar, ‘Pattavia- and ‘Phuket-, respectively, a comparison study between the ‘Phu-Chawa- and its parents was conducted to investigate chemical compositions and internal browning of the fruit after 14 days of storage at 10±2°C, 95±5% RH followed by another three days at 25°C. It was found that ‘Phuket- showed browning symptom score of 4.3, while ‘Phu-Chawa- and ‘Pattavia- exhibited browning symptom score of 0.7 and 0.1, respectively. ‘Pattavia- and ‘Phuket- had similar ascorbic acid content (9.1 and 4.3 mg Ascrobic acid/100 ml juice, respectively), which was lower than that of ‘Phu-Chawa- (22.3 mg Ascrobic acid/100 ml juice). Similarly, ‘Phu-Chawa- and ‘Pattavia- had lower polyphenol oxidase and peroxidase activities than that of ‘Phuket- cultivar. After storage, a decrease in gallic acid but increase in vanillic and caffeic acids were found in both ‘Pattavia and ‘Phu-Chawa- pineapple. In contrary, catechin and 4-hydroxybenzoic acid increased in ‘Phu-Chawa- but decreased in ‘Pattavia- pineapple.

Keywords: phenolic compound, chilling injury, chemical composition

Topic: International Conference on Sustainable Agriculture

Link: https://ifory.id/abstract/XpWR8Jkd6gGC

Conference: The 3rd International Conference on Sustainability and Innovation (ICoSI 2019)

Plain Format | Corresponding Author (Siti Nur Aisyah)

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