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Date juice decolorized by ultra-filtration and its use with stevioside sweetener in beverage formulation | ||
| Journal of Food and Bioprocess Engineering | ||
| مقاله 7، دوره 1، شماره 1، شهریور 2018، صفحه 39-46 اصل مقاله (363.53 K) | ||
| نوع مقاله: Original research | ||
| نویسندگان | ||
| Behnoud Eslami1؛ Mohsen Labbafi* 2؛ Faramarz Khodaiyan3 | ||
| 1Department of Food Science and Engineering, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj 31587-77871, Iran | ||
| 2Department of Food Science and Technology, University of Tehran | ||
| 3Bioprocessing and Biodetection Laboratory, Department of Food Science and Engineering, Faculty of Agricultural Engineering and Technology, University of Tehran, Karaj 31587-77871, Iran | ||
| چکیده | ||
| Date juice was treated by cross- flow ultra-filtration with molecular weight cut-off (MWCO) of 5 kDa. Optimized levels of feed brix, TMP and operation time were determined as 47.13, 82.11 psi and 30 min, respectively. Under such conditions, 80.94% decolourisation and 97.78% turbidity reduction were obtained while loss of glucose and fructose were estimated to be only 3.49% and 9.62%, respectively. Regarding sweetness, the results of beverage sensory indicated that samples prepared by 100% decolorized date juice, 50% sugar, + 50% stevioside, 50% decolorized date juice and + 50% stevioside did not show significant differences compared with the sample prepared by 100% sugar. From the view point of the bitter aftertaste, samples prepared by 100% sugar and 100% stevioside had the highest and lowest desirability, respectively, while there was no significant difference between colour and clarity of the samples. | ||
| کلیدواژهها | ||
| Date juice؛ Ultra-filtration؛ Decolorization؛ Sugar free beverage | ||
| مراجع | ||
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