Effect of Ethylene Curing on the Physical Properties and Nutritional Contents of Thai’s Banana (Kluai Namwa)
Keywords:
Banana, Curing, Potassium, MagnesiumAbstract
Banana is one of energy source fruit which growth all over Thailand. As a shortage shelf life, most of bananas are cut while it still green in order to maintain its physical quality and also the damage while transporting. Practically after cutting banana, there are two different ways of ripeness; naturally ripe and gas curing. Both ways may affect to the quality of banana differently. So, this research interest has paid attention to compare the change of physical properties, potassium and magnesium contents in bananas from different ripeness methods. Three maturation phases of banana were applied as an unripe, naturally ripe and curing. Thai Banana of Kluai Namwa (Musa ABB cv. Kluai “Namwa”) was used in this study. Kluai Namwa was cultivated after 15 weeks (when it still green), and then divided into two groups. The first one was kept it naturally at the room temperature until it ripe, the second one was cured using ethylene gas for 24 hours in order to make it ripe. The results showed that there were a significant different (p≤0.05) in color and hardness of bananas, as well as the potassium and magnesium contents of bananas from two different ripeness ways. The potassium content in cured Kluai Namwa showed higher than that in unripe and naturally ripe Kluai Namwa of 383.02, 373.20 and 324.50 (mg/100g), respectively. In addition, the unripe Kluai Namwa showed the highest magnesium content compared to cured Kluai Namwa and naturally ripe Kluai Namwa of 37.12, 35.41 and 27.08 (mg/100g), respectively. According to the results, it was recommended that curing method may help to increase the potassium and magnesium contents in ripe banana.
References
Ascherio A., Rimm EB., and Heman MA. 1998. Intake of potassium, magnesium, calcium, and fiber and risk of stroke among US men. Circulation. 98; pp. 1198-1204.
Banjamart Srilayoy. 2545. Banana. Vol.3. Kasatsart University, Bangkok, Thailand. pp.357.
CIE L* a* b* Color Scals, 2008. Hunter Lab, Vol.8.
Janpan Butsai and Sanea Buasanit. 2555. Factors affecting the production process of banana rolls. Food Science and Technology, Faculty of Agricultural and Agro-Industrial Technology, Rajamangala University of Technology Suvarnabhumi, Thailand. pp.11-13.
Kader, A.A. 1985. Proper units for firmess and abscission force data. HortSci. 17 : pp.707.
Nalermon Wachirapattama, Tittita Sripumma and Suttinee Mitresorasan. 2554. Determination of Potassium, Calcium, Magnesium and Chloride in Coconut Water by Capillary Electrophoresis. Journal of Science and Technology. Y.19. Vol.4. Department of Chemistry, Faculty of Science and Technology, Thummasat University (Rangsit), Thailand. pp.3-4.
Pantrila Udon. 2557. The use of polyethylene-like synthetic resins. Biology. The Institute for the Promotion of Teaching Science and Technology, Thailand.
Pattamapan Lomarat. 2544. Foods with high potassium. Department of Chemistry, Faculty of Pharmacy, Mahidol University, Thailand.
Reid, M.A. 1992. Ethylene in postharvest technology. In A.A. Kader (ed.). Postharvest Technology of Horticultural Crops. 2nd ed., Publication 3301. University of California Division of Agriculture and Natural Resources, Oakland. pp. 97-108.
Solangi, A.H. and Iqbal, M.Z., 2011. Chemiscal Composition of Meat (Kernel) and Nat Water of Major Coconat (Cocos nucifera L.) Cultivars at Coastal Area of Pakistan, Pak. J. Bot.43: pp.357-363.
Union Curbide Crop. 1970. Ethylene for coloring matured fruits and Vegetables Product Information, Union Carbide Crop. New York. pp.11.
X. Liu, S. Shiomi, A. Nakatsuka, Y. Kubo, R. Nakamura, and A. Inaba. 1999. Characterization of ethylene biosynthesis associated with ripening in banana fruit Plant Physiol., 121, pp. 1257-1265.
Yong Wangaf, Wangjin Lube, Yueming Jianga, Yunbo Luoc, Weibo Jiangc and Daryl Joyce. 2006. Expression of ethylene-related expansin genes in cool-stored ripening banana fruit. Plant Science Volume 170, Issue 5, pp. 962-967.
