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AVG (Aminoethoxyvinylglycine) has been widely used in plum and improved the quality of fruit. And also, AVG treatment has been delayed fruit maturity and decreased the preharvest fruit drop by inhibiting ethylene that cause to accelerate the maturation at period before harvest.The effect of AVG (Aminoethoxyvinylglycine) treatment and harvest periods on physical, chemical and mechanical properties of plum (cv. Giant) fruit was determined. The geometric mean diameter was lower in the after full blooming 143 days (13 August harvest date) than after full blooming 150 days (20 August harvest date). The surface area and porosity of plum fruit were higher in in the after full blooming 150 days (20 August) than the after full blooming 143 days (13 August harvest date). L*, b*, C* and h colour characteristics with harvesting dates, b* values decreased with harvesting date changes; whereas, L*, a*, b* and C* colour characteristics of plum fruit decreased for 200 mg L-1 AVG treatment with harvesting date, respectively. In general, the friction coefficients of plum fruit for laminate friction surface were found lower than the other friction surfaces such as galvanized steel, plywood and chipboard). Generally, the rupture force, deformation and absorbed energy of plum fruit decreased for 100 mg L-1 AVG treatment for after full blooming 143 and 150 days (13 August and 20 August harvesting dates) along Z- axial axis for compression tests. The force required to initiate plum fruit rupture on the X-axis decreased as AVG doses increased from 0 to 200 mg L-1. The results indicated that the rupture force along all three axes is highly dependent on harvesting date over the AVG doses ranges investigated. Chemical characteristics of plum fruit [SSC, Soluble solid content, TA, titratable acidity, pH changed from 12.17 to 10.80 (11.26% decrease); from 3.543 to 3.637 (2.82% increase); from 1.441 to 1.146 (20.48% decrease) for after full blooming 143 days (13 August harvesting date) with AVG dose increase from 0 mg L-1 to 200 mg L-1, respectively. For this reason, post-harvest technological applications of the plum fruit must be designed while taking these criteria into consideration such as physical, mechanical and chemical properties of plum fruit.
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Altuntas, E., E. N. Gul, and M. Bayram. 2013. The physical, chemical and mechanical properties of medlar (Mespilus germanica L.) during physiological maturity and ripening period. Journal of Agricultural Faculty of Gaziosmanpasa University (JAFAG), 30(1): 33-40.
Altuntas, E., C.Somuncu, and B.Ozturk, 2013. Mechanical behaviour of plum fruits as affected by preharvest methyl jasmonate applications. Agricultural Engineering International: The CIGR EJournal. Manuscript, 15(2), 266-274, July, 2013).
Altuntas, E., B. Ozturk and H.I. Kalyoncu, 2018. Bioactive Compounds and Physico-Mechanical Attributes of Fruit and Stone of Cherry Laurel (Prunus Laurocerasus) Harvested at Different Maturity Stages. Acta scientiarum Polonorum. Hortorum cultus, 17 (6), 75-84.
Autio, W.R. and Bramlage, W.J. 1982. Effects of AVG on maturation, ripening, and storage of apples. J. Am. Soc. Hortic. Sci. 107, 1074–1077.
Association of Official Analytical Chemists. 1984. Official methods of analysis. 14th ed. Arlington, VA: Association of Official Analytical Chemists.
Barrett, D. M., C. Weakley, J. V. Diaz, and M. Watnik. 2007. Qualitative and nutritional differences in processing tomatoes grown under commercial organic and conventional production systems. Journal of Food Science, 72(): 441–451.
Braga, G. C., S. M. Couto, T. Hara, and J. T. P. A. Neto. 1999. Mechanical behaviour of macadamia nut under compression loading. Journal of Agricultural Engineering Research, 72(3): 239–245.
Brusewitz, G. H. 1975. Density of rewetted high moisture grains. Transactions of the ASAE, 18(5): 935-938.
Greene, D.W. 2006. An update on preharvest drop control of apples with aminoethoxyvinylglycine (ReTain). Acta Hortic. 727, 311–319.
Jha, S. N., A. R. P. Kingsly, and C. Sangeeta. 2006. Physical and mechanical properties of mango during growth and storage for determination of maturity. Journal of Food Engineering, 72(1): 73-76.
Kabas, O., Ozmerzi, A. and Akinci, I. 2006. Physical properties of cactus pear (Opuntia ?cus India L.) grown wild in Turkey. J. Food Eng. 73, 198–202.
Kabas, O. and Ozmerzi, A. 2008. Determining the mechanical properties of cherry tomato varieties for handling. J. Texture Studies 39(3), 199–209.
Kilickan, A. and Guner, M. 2008. Physical properties and mechanical behaviour of olive fruits (Olea Europaea L.) under compression loading. J. Food Eng. 87(2), 222–228.
Kuna-Broniowska, I., Gadyszewska, B. and Ciupak, A. 2012. Effect of storage time and temperature on poisson ratio of tomato fruit skin. Int. Agrophys. 26, 39–44.
McGuire, R. G. 1992. Reporting of objective colour measurements. Hort Science, 27(12):1254-1255.
Mohsenin, N. N. 1980. Physical properties of plant and animal materials. Gordon and Breach Science Publishers, New York.
Ozkan, Y., Altuntas, E., B.Ozturk, K.Yildiz, and O. Saracoglu, 2012. The effect of NAA (1-naphthalene acetic acid) and AVG (aminoethoxyvinylglycine) on physical, chemical, colour and mechanical properties of Braeburn apple. International Journal of Food Engineering, Volume 8, Issue 3, Pages –, DOI: 10.1515/1556-3758.2524, July 2012.
Ozturk, I., Ercisli, S., Kalkan, F. and Demir, B. 2009. Some chemical and physico-mechanical properties of pear cultivars. Afric. J. Biotechnol. 8(4), 687–693.
Ozturk, B., Y. Ozkan, E. Altuntas, K. Yildiz, and O. Saracoglu, 2013. Effect of aminoethoxyvinylglycine on biochemical, physico-mechanical and colour properties of cv. ‘Braeburn’ apples. Semina: Ciências Agrárias. 34(3):1111-1120.
Pérez-Vicente, A., Martinez-Romero, D., Carbonell, A., Serrano, M., Riquelme, F., Guillén, F. and Valero, D. 2002. Role of polyamines in extending shelf life and the reduction of mechanical damage during plum (Prunus salicina Lindl.) storage. Postharvest Biol. Technol. 25(1), 25–32.
Razavi, S.M. and Parvar, M.B. 2007. Some physical and mechanical properties of kiwifruit. Int. J. Food Eng. 3(6), 1–14.
Shin, Y., J.A. Ryu, R.H. Liu, J.F. Nock, and C.B. Watkins. 2008. Harvest maturity, storage temperature and relative humidity affect fruit quality, antioxidant contents and activity, and inhibition of cell proliferation of strawberry fruits. Postharvest Biology and Technology, 49: 201–209.
Topuz, A., Topakci, M., Canakci, M., Akinci, I. and Ozdemir, F. 2005. Physical and nutritional properties of four orange varieties. J. Food Eng. 66, 519–523.
Yuan, R. and Carbaugh, H.D. 2007. Effects of NAA, AVG and 1-MCP on ethylene biosynthesis, preharvest fruit drop, fruit maturity and quality of “Golden Supreme” and “Golden Delicious” apples. HortScience 42(1), 101–105.