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稳定剂对软冰淇淋品质的影响 总被引:4,自引:1,他引:4
对软冰淇淋浆料的粘度及软冰淇淋的硬度、膨胀率、抗融性等指标进行测试来观察黄原胶、刺槐豆胶和卡拉胶对软冰淇淋品质的影响.结果表明:在没有乳化剂存在的前提下,刺槐豆胶的抗融性最好,卡拉胶次之,黄原胶较差,但刺槐豆胶对软冰淇淋膨胀率的影响不稳定,当添加量为0.2%~0.4%时能显著提高软冰淇淋的膨胀率,其他用量时膨胀率则反而降低,黄原胶可提高产品的膨胀率,卡拉胶则降低膨胀率;在粘度方面,三者均有增稠作用,作用大小依次为黄原胶、刺槐豆胶和卡拉胶;三者均有降低产品硬度的趋势,刺槐豆胶的降低程度大于卡拉胶和黄原胶. 相似文献
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研究刺槐豆胶/黄原胶复配体系的流变性,并采用流变学的Cross模型进行拟合分析。结果表明:刺槐豆胶与黄原胶复配可以产生协同作用,当刺槐豆胶与黄原胶的复配体积比为4∶6时,复配体系的黏度最大,触变测试中形成的滞后环面积最大,并且在黏弹性测试中储能模量G’表现出最大值。因此,刺槐豆胶与黄原胶的最佳复配比例为体积比4∶6。对最佳比例复配体系进行不同温度处理后测试可知,最佳复配体系的最适处理温度为80℃,得到的复配体系黏度最大;复配体系的p H值在6.0~10.0之间时,其黏度变化较小,保持相对稳定。 相似文献
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《食品工业科技》2016,(8)
研究前期筛选获得一株多糖胶质高产菌Xanthomonas axonopodis所产的黄原胶FJAT-10151-DTJZ的品质,为该黄原胶的开发应用提供基础数据及参考。通过分析浓度、剪切速率、p H、加热温度、时间、冻融处理等对FJAT-10151-DTJZ粘度的影响研究其流变性,并研究其与结冷胶、黄原胶、凝胶多糖、瓜尔豆胶、刺槐豆胶、魔芋胶、果胶和壳聚糖8种胶的协效性。实验结果表明,FJAT-10151-DTJZ溶液的粘度随浓度的升高而升高,且为非牛顿流体;当FJAT-10151-DTJZ的浓度为1%时,其粘度为343 m Pa·s;p H、冻融对FJAT-10151-DTJZ的粘度影响不大;FJAT-10151-DTJZ的最佳加热温度为75℃;粘度随加热时间先增大后减小,当加热温度为75℃,加热时间为150 min,1%浓度的FJAT-10151-DTJZ溶液的粘度为808 m Pa·s。FJAT-10151-DTJZ只与魔芋胶有强烈的协同增效作用,与壳聚糖、结冷胶、黄原胶、凝胶多糖、瓜尔豆胶、刺槐豆胶、果胶无协效性。 相似文献
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猪屎豆胶与黄原胶复配胶的流变性研究 总被引:2,自引:0,他引:2
本实验主要通过测定体系黏度研究了猪屎豆胶与黄原胶复配胶的流变学性质。实验结果表明,猪屎豆种子胶与黄原胶有较强烈的协效性,二者的最佳复配比为6:4;复配胶的黏度随浓度的升高而升高,浓度达到0.4%时开始形成凝胶,浓度达到0.8%时形成坚实的凝胶,浓度为0.7%时的溶液黏度为5367mPa·s;混合胶液为“非牛顿流体”,溶液具有“假塑性”;胶液的最佳加热温度为80℃,最佳加热时间为1h;pH5~9、冻融变化、苯甲酸钠、超声波和微波处理对对其黏度影响较小;复配胶具有良好的耐盐稳定性。 相似文献
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研究猪肉肠中亚麻籽胶、卡拉胶和黄原胶的相互作用。采用析因设计,在猪肉肠加工过程中,添加不同量的亚麻籽胶、卡拉胶和黄原胶,分析上述胶类对猪肉肠保水性、保油性的影响。结果表明:添加亚麻籽胶可显著地增强猪肉肠在60℃条件下烘20、40、60、80min的保水能力(P<0.01)。卡拉胶对猪肉肠在60℃条件下烘20、40min的保水能力无显著性的影响,亚麻籽胶与黄原胶对猪肉肠在60℃条件下烘20、40min都有显著性交互作用(P<0.05);保水能力从高到低依次为:亚麻籽胶、黄原胶、卡拉胶。亚麻籽胶对猪肉肠用乙醚浸提40min和60min的保油性有显著性的影响(P<0.05),黄原胶和卡拉胶对保油性没有显著性的影响;保油能力高到低依次为:亚麻籽胶、黄原胶、卡拉胶。 相似文献
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桃胶与阿拉伯胶都可用于食品增稠剂,本文对其透明度、稳定性、表面张力、保持香气能力等方面与阿拉伯胶进行了比较,并对流变曲线进行了测定,对温度、pH和电解质对它们粘度的影响进行了研究和比较。从研究结果来看,桃胶与阿拉伯胶的流变性质相似,甚至有些性质方面,桃胶要明显优于阿拉伯胶。 相似文献
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介绍胶基糖对香精香料的要求,胶基糖的香味评价,香精对胶基糖生产的影响,胶基糖香精的质量问题和可能原因分析,香精水溶性的快速测定,一些胶基糖配方的设计思路和一些花色品种的研发创意。 相似文献
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介绍胶基糖对香精香料的要求,胶基糖的香味评价,香精对胶基糖生产的影响,胶基糖香精的质量问题和可能原因分析,香精水溶性的快速测定,一些胶基糖配方的设计思路和一些花色品种研发创意。 相似文献
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玉米醇溶蛋白替代口香糖中胶基的应用效果分析 总被引:2,自引:2,他引:2
通过对比实验以及对实验结果进行统计分析和产品的感官评定,确定玉米醇溶蛋白替代胶基的最佳比例。在对比实验中确定四个水平,即100%、75%、50%、25%替代,并通过对其理化性质分析和感官评定,确定其最佳比例是25%。 相似文献
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F Mohedano F García‐Ochoa 《Journal of the science of food and agriculture》2000,80(12):1722-1727
The viscosity of diluted guar gum solutions and the viscosity of xanthan and guar gum mixture solutions have been studied. Guar gum solutions showed pseudoplastic behaviour. Apparent viscosity increased with gum concentration and decreased with the temperature at which viscosity was measured. A maximum in the plot of viscosity versus increasing dissolution temperature was observed at 60 °C. This behaviour was related to differences in molecular structure of the polymers solved at different temperatures. Mixtures of xanthan and guar gum showed a higher combined viscosity than that occurring in each separate gum. This synergistic interaction was affected by the gum ratio in the mixture and dissolution temperature of both gums. The effect of polysaccharide concentration (1.0, 1.5 and 2.0 kg m−3), xanthan/guar gum ratio (1/5, 4/2, 3/3, 4/2 and 5/1) and dissolution temperature (25, 40, 60 and 80 °C for both gums) on the viscosity of solutions of mixtures were studied. The highest viscosities were observed when 2.0 kg m−3 gum concentration was used together with a ratio of xanthan/guar gum of 3/3 (w/w) and dissolution temperature of 40 and 80 °C for xanthan and guar gum, respectively. © 2000 Society of Chemical Industry 相似文献
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降解黄原胶与降解瓜胶在一定条件下共混,形成凝胶体系.通过对其流变特性进行研究,表明该体系具有显著的黏弹性和剪切变稀性.考察了总胶浓度、蔗糖、共混比例及降解食品多糖的分子量等因素对共混凝胶体系流变特性的影响.研究了该凝胶体系的本构方程,结果表明,修正Williamous-Oldroyld-4参数模型可确切描述凝胶体系的黏度曲线,计算值与实验值吻合良好. 相似文献
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Fenugreek gum (extruded and non-extruded) was substituted for wheat flour at 0%, 5% and 10% (w/w) and the rheological effects and breadmaking characteristics were determined. Bread containing fenugreek gum (FG) at 5% and 10% showed volumes and texture comparable with a control bread. Quality was high due to sheeting the dough twice as well as the use of the three-fold-turn puff pastry laminating method during processing of dough, instead of the standard rounding of dough. The three-fold-turn method is believed to have caused a higher incorporation of air into the dough as well as facilitated better distribution and incorporation of the fenugreek gum into bread dough. Extruding FG also improved its solubility in bread. Fenugreek gum (FG) resulted in an increase in dough farinograph water absorption compared with the control, but extruding the gum caused an even greater increase in water absorption when compared with the non-extruded gum. The addition of FG to bread dough caused an increase in G′ and G″. Starch pasting using RVA showed an increase in peak viscosity, final viscosity, breakdown and setback in a dose-related response when compared with a control. 相似文献