Effect of Storage on the Quality Attributes of Concentrates of Two Mango (Mangifera indica) Varieties Grown in Sudan
Ann O. K. Elsheikh, Abd Elazeem A. M. Nour, Abd Elmoneim O. Elkhalifa
Current Journal of Applied Science and Technology · pp. 2069–2078 · Published 24 Mar 2014
10.9734/BJAST/2014/9398Abstract
Aims: To produce concentrates at remote areas of production, where fruits are expected to be cheaper and hence compete with imported concentrates. Study Design: Factorial Experimental design. Place and Duration of Study: Department of Food Science and Technology, Faculty of Agriculture, University of Khartoum, Sudan and Food Research Center, Shambat, Sudan, between September 2009 and May 2010 Methodology: Two mango (Mangifera indica) varieties Abu Samaka and Baladi were used to produce concentrate and the concentrate was stored at ambient temperature and a refrigerator at 4ºC for 6 months. The concentrates were prepared by using open kettle boiler (100ºC) and they were packed in cans using double seam machine. Results: The Baladi variety gave higher total soluble solids (TSS) than Abu Samaka. Abu Samaka exhibited an excellent percentage (29.7%) of total sugars during storage and the total titrable acidity of mango concentrate in the two varieties reported a slightly increase. The reducing sugars increased gradually with storage time. The two varieties showed retention of ascorbic acid content during storage. There was no growth of E. coli, yeast and molds in the concentrates of the two varieties tell the end of the storage period (6 months). The concentrates from the two varieties at both temperatures were acceptable by the panelists. Conclusion: The two varieties showed suitability in processing to give mango concentrate.
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