ISSN: 2536-7064
Model: Open Access/Peer Reviewed
DOI: 10.31248/JBBD
Start Year: 2016
Email: jbbd@integrityresjournals.org
https://doi.org/10.31248/JBBD2016.006 | Article Number: A0DC4A2C3 | Vol.1 (1) - April 2016
Received Date: 05 February 2016 | Accepted Date: 18 March 2016 | Published Date: 30 April 2016
Authors: Oladele O. O.* and Owolabi O. J.
Keywords: incidence, storage., decay, Citrus sinensis, treatment.
Integrated control of postharvest decay on sweet orange fruits by hot water and sodium carbonate (Na2CO3) applications during subsequent storage at 28°C was investigated and the effect of such treatment on internal quality attributes of orange fruits determined. Mature sweet orange fruits without bruises were selected and washed in 2% sodium hypochlorite solution for 5 minutes before treatment. For ordinary sodium carbonate treatment (without hot water), selected fruits were separately immersed for 150 seconds in a water bath containing 2% (w/v) and 4% (w/v) sodium carbonate (Na2CO3) solutions. In another experiment, selected fruits were immersed for 150 seconds in a water bath containing hot water and sodium carbonate solution. Sodium carbonate concentrations at 2% (w/v) and 4% (w/v) in 45°C hot water temperature were tested. After treatment, the fruits were rinsed, allowed to air dry and then placed inside plastic buckets and stored at 25°C and 88% relative humidity and assessed weekly for mould infection. Result showed that fruits treated with 4% ordinary Na2CO3 concentration had no incidence of decay during the first week of storage. However, untreated fruits and fruits treated with ordinary 2% Na2CO3 concentration recorded 20.00% disease incidence in the first week of storage. The percentage decay of fruits later increased to 44.16±10.83 in all the fruits treated with 2% Na2Co3 concentration by week two and continued till third week when they were completely diseased, having 100% decay incidence. The causal organisms in the decaying fruits were Penicillium digitatum and Phytophthora palmivora. However, fruits treated with 2% Na2CO3 concentration in 45ºC hot water recorded 0% decay incidence throughout storage duration which lasted for 6 weeks and as such implied that all the treated fruits were diseased free.
Alexopoulous, C. J., Mims, C.W., & Blackwell, M. (1996). Introductory Mycology, John Wiley and sons Inc., New York. 869p. | ||||
Ancos, B., Syroppo, S., Plaza, L., & Cano, M.P. (2002). Possible nutritional and health related values promotion in orange juice preserved by pressure treatment. Journal of Science of Food and Agriculture, 82,790-796. Crossref |
||||
Barkia-Golan, R., & Apelbaum, A. (1991). Synergistic effect of heat and sodium O-phenyl Phenate treatment to inactivate Penicillium spore and suppress decay in citrus fruits. Tropical Science, 31, 229-233. | ||||
Ben-Yehoshua, S. (1986). Some physiological effects of various skin coating on orange fruits/streal, Agric, Res., 17(1), 17-27. | ||||
D' Aquino, S., Piga, A., Agabbio, M., & McCollum, T. G. (1998). Film wrapping decay ageing of 'minnela' tangelo under shelf-life condition, Postharvest Biology and Technology, 14, 107-116. Crossref |
||||
Dorria, M. A; Omalma, M. H., & Mohei, E. S. (2007). Integrated control of postharvest decay on blood orange fruits by curing, hot water and sodium carbonate applications. Research Journal of Agriculture and Biological Sciences, 3, 590-598. | ||||
Eckert, J. W., & Eaks, I. L. (1989). Post harvest disorder and diseases of citrus fruits In: The citrus industry Vol. 5. Edited by Reuter, W., Calavan, E. C & Carman, G. E. Press, Berkeley. 179-260. | ||||
Egharevba, R. K. (1995). Fruit ripening In: Tropical postharvest. Edited by Osagie, A.U. Postharvest Research Unit. University of Benin, Benin city, Nigeria. 34-42. | ||||
Erkan, M., Permezci, M., & Wang, C.Y. (2005). Hot Water and curing treatments reduce Chilling injury and maintain postharvest quality of "Valencia' oranges. International Journal and Food Science and Technology, 1, 91-96. Crossref |
||||
Grierson, W., & Ben-Yehoshua, S. (1986). Storage of Citrus Fruits In: Fresh Citrus Fruits. Edited by Wardowski, W., Naggy, S. and Grierson, W. Avi.Pub.Co. Westport, Connecticut. 437-42. Crossref |
||||
Holdsworth, S.D. (1983). Fruit and vegetable juices and related products. In: The preservative of fruit and vegetable food product. 5th ed. Macmillian Publishers Ltd. London. 116-128. Crossref |
||||
Hong, P., Hoa, W., Lou, J., Chen, S., Hu, M., & Zhong, G. (2007). Combination of hot water, Bacillus amyloliqulfaciens HF-01 and sodium bicarbonate treatment to control postharvest decay of mandarin fruit. Postharvest Biology Technology 88: 96-102. Crossref |
||||
Ismail, M. A., & Zhang, J. (2004). Post-Harvest citrus diseases and their control. In: Outlooks on Pest Management, 15, 29-35. Crossref |
||||
Nagy, S., & Attaway, J. A. (1980). Citrus Nutrition and Quality. Vol. 1. Avi Piblishing Co. Westport, Connecticut Newton BBS. Argonne National Laboratory. (2000). Retrieved 2009. Crossref |
||||
Palou, L., Smilanick, J.L., Usall, J., & Vinas, I. (2001). Control of postharvest blue and green molds of orange by hot water, sodium carbonate and sodium biocarbonate. Plant Disease, 85, 371-376. Crossref |
||||
Plaza, P., Usall, J., Torres, R., Lamarca, N., Asensio, A., & Vinas, I. (2003). Control of green and blue molds by curing on orange during ambient and cold storage. Postharvest Biology Technology, 28, 195-198. Crossref |
||||
Rodov, V., Ben-Yehoshua, S., Albagli, R., & Fang, D. Q. (1995). Reducing chilling injury and decay of stored Citrus fruit by hot water dip. Postharvest Biology Technology, 5, 119-127. Crossref |
||||
Schirra, M., & D'Hallewin, G. (1997). Storage performance of 'Fortune' mandarins following hot water dips. Postharvest Biology Technology, 10, 229-230. Crossref |
||||
Smilanick, J. L., Mackey, B. E., Reese, R., Usall, J., & Margosan, D. A. (1997a). Influence of concentration of soda ash, temperature and immersion period on the control of post-harvest green mold of orange. Plant Disease. 81, 379-382 Crossref |
||||
Smilanick, J. L., Micheal, I. F., Mansour, M. F., Mackey, B. E., Margoson, D. A., Flores, D., & Weist, C. F. (1997b). Improved control of green mold of citrus with Imazalil in warm water compared with its use in wax. Plant Disease, 81, 1299-1304. Crossref |