Aplikasi Ethephon dan Stiker Pascapanen untuk Perbaikan Kualitas Buah Jeruk Siam Garut (Citrus nobilis Lour)

Abstract

Tangerine fruit is one of the fruit commodity favorited by Indonesian people. The main problem of local citrus is the color of its peel. Tangerine fruit's peel is yellowish green when physiologically ripe. Degreening is a technology that can help produce orange color on fruit peel by ethephon but ethephon can shorten shelf life. Postharvest sticker that contained sodium chloride is one of innovation that can extend the shelf life of fruits which produced by one of the companies in Malaysia. The used of postharvest sticker was expected can increase fruit shelf life. This study aimed to examine the effect of ethephon in degreening quickness and the used of postharvest sticker to increase the shelf life of siam tangerine fruit. This research used siam tangerine from Garut and conducted from August until September 2017 at Center for Tropical Horticulture Studies Bogor Agricultural University. The research used a Randomized Complete Block Design Group Factorial with ethephon (0 ppm and 1.000 ppm) as first factor and postharvest sticker (without and with postharvest sticker) as second factor. The result showed that the interaction between ethephon and postharvest sticker had no significant effect on visual, physical, and chemical quality. The application of 1.000 ppm ethephon could significantly speed up the degreening process on siam tangerine fruit till 10 days to get yellowish orange compared with fruit without ethephon application. The orange color on the fruit skin of ethephon treatment occured at age 11 days after treatment. The ethephon treatment had no significant effect on the chemical quality of the fruit. The ethephon treatment fruits began to decay at 9 days after treatment and the treated fruit without ethephon began to decay at 13 days after treatment. Postharvest sticker application had no significant effect on visual quality, physical quality, and chemical quality of siam tangerine fruit.

Pengaruh Perbedaan Waktu Pelilinan Setelah Proses Degreening Buah Jeruk Keprok Garut (Citrus reticulata L.) terhadap Perubahan Warna dan Umur Simpan Buah

“…Selain menggunakan etilen, ethepon juga banyak digunakan dalam proses degreening jeruk. Aplikasi ethepon 1,000 ppm dapat mempercepat proses degreening pada buah jeruk siam garut hingga 10 hari untuk memperoleh kulit berwarna jingga kekuningan dibandingkan buah perlakuan tanpa ethepon (Lieka, 2018). Menurut Gautama et al (2019) pemberian larutan ethepon dapat mendorong pembentukan warna jingga pada kulit jeruk keprok, dimana pemberian 1,000 ppm mengalami perubahan warna yang lebih cepat dan nilai CCI yang lebih tinggi dibanding tanpa ethepon.…”