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Food Chem

Title:		Effect of phytosanitary irradiation on the postharvest quality of Seedless Kishu mandarins (Citrus kinokuni mukakukishu)
Author(s):		Ornelas-Paz JJ; Meza MB; Obenland D; Rodriguez Friscia K; Jain A; Thornton S; Prakash A;
Address:		"Centro de Investigacion en Alimentacion y Desarrollo A. C.-Unidad Cuauhtemoc, Av. Rio Conchos S/N, Parque Industrial, C.P. 31570 Cd. Cuauhtemoc, Chihuahua, Mexico. Food Science Program, Schmid College of Science and Technology, Chapman University, One University Drive, Orange, CA 92866, United States. USDA, Agricultural Research Service, San Joaquin Valley Agricultural Sciences Center, 9611 South Riverbend Avenue, Parlier, CA 93648-9757, United States. Food Science Program, Schmid College of Science and Technology, Chapman University, One University Drive, Orange, CA 92866, United States. Electronic address: prakash@chapman.edu"
Journal Title:		Food Chem
Year:		2017
Volume:		20170319
Issue:
Page Number:		712 - 720
DOI:		10.1016/j.foodchem.2017.02.125
ISSN/ISBN:		1873-7072 (Electronic) 0308-8146 (Linking)
Abstract:		"Transnational trade of 'Seedless Kishu' mandarins (Citrus kinokuni mukakukishu) would require them to be subjected to a suitable phytosanitary treatment. Irradiation is used as an effective treatment for many fruit, but the effect on quality of kishu mandarins is unknown. 'Seedless Kishu' mandarins were treated with gamma irradiation (150, 400, and 1000Gy) and stored for three weeks at 6 degrees C and then for one week at 20 degrees C. Irradiation at 400 and 1000Gy promoted browning of the calyx end and fungal infection. Irradiation caused immediate reductions in pulp firmness, vitamin E, individual sugars and carotenoids but increased the content of organic acids, except ascorbic acid, and phenolic compounds. The volatile profile of tested fruit was also differentially altered by irradiation. Most of these initial changes were dose dependent. 'Seedless Kishu' mandarins are significantly sensitive to irradiation and are not suitable for treatment at the studied doses"
Keywords:		Carotenoids Citrus/*chemistry Fruit/*chemistry Phytochemicals Bioactive compounds Citrus Ionizing energy Mandarin Postharvest storage;
Notes:		"MedlineOrnelas-Paz, Jose de Jesus Meza, Maria Belen Obenland, David Rodriguez Friscia, Karina Jain, Akanksha Thornton, Shantae Prakash, Anuradha eng England 2017/04/15 Food Chem. 2017 Sep 1; 230:712-720. doi: 10.1016/j.foodchem.2017.02.125. Epub 2017 Mar 19"