Bajwa Usha, Mittal Shikha
Department of Food Science and Technology, Punjab Agricultural University, Ludhiana, 141004 Punjab India.
J Food Sci Technol. 2015 Apr;52(4):2112-20. doi: 10.1007/s13197-013-1184-7. Epub 2013 Oct 26.
Removal of sugar as a sweetener and its replacement by a high potency sweetener introduces a number of sensory and technical challenges particularly diminution in mouthfeel. Thick consistency of pulpy fruits could be exploited to compensate for the loss of viscosity and mouthfeel in sugar substituted beverages. The investigation was undertaken to study the effect of mango pulp supplementation on the quality of flavoured low calorie milk drinks using sucralose as sugar substitute. The effect of 0.0 to 100 % sugar replacement on total solids (TS), total soluble solids (TSS), specific gravity, viscosity and sensory scores was studied. Sugar replacement considerably decreased TS, TSS, viscosity and sensory scores. The mango flavoured milk drinks(MFDs) prepared by replacing sugar with sucralose and adding 10 % mango pulp in milk of 0.5 % fat and 8.5 % milk solid-not-fat. MFD were pasteurized and stored at refrigeration temperature for shelf life studies. A significant (p < 0.01) loss in the viscosity, ascorbic acid and reducing sugar content of pasteurized MFD was noticed during the storage period of 10 days at 5.0 ± 0.1 °C. However, the titratable acidity increased to undesirable levels in MFD after 8 days which rendered it unacceptable. Standard plate count and yeast and mold count of MFDs increased during storage. The shelf life of the pasteurized MFD was found to be 8 days at 5.0 ± 0.1 °C.
去除作为甜味剂的糖并代之以高效甜味剂会带来许多感官和技术挑战,尤其是口感的减弱。果肉状水果的浓稠质地可用于弥补低糖替代饮料中粘度和口感的损失。本研究旨在探讨添加芒果果肉对以三氯蔗糖作为糖替代品的调味低热量牛奶饮料品质的影响。研究了0.0%至100%糖替代率对总固体(TS)、总可溶性固体(TSS)、比重、粘度和感官评分的影响。糖替代显著降低了TS、TSS、粘度和感官评分。用三氯蔗糖替代糖并在含0.5%脂肪和8.5%非脂乳固体的牛奶中添加10%芒果果肉制备芒果味牛奶饮料(MFD)。对MFD进行巴氏杀菌并在冷藏温度下储存以进行保质期研究。在5.0±0.1°C下储存10天期间,巴氏杀菌MFD的粘度、抗坏血酸和还原糖含量显著(p<0.01)损失。然而,8天后MFD中的可滴定酸度增加到不可接受的水平,使其无法接受。储存期间MFD的标准平板计数以及酵母和霉菌计数增加。发现巴氏杀菌MFD在5.0±0.1°C下的保质期为8天。