共查询到18条相似文献,搜索用时 125 毫秒
1.
2.
糖醇对甘薯淀粉理化性质的影响 总被引:1,自引:1,他引:1
以甘薯淀粉为原料,研究不同添加量的麦芽糖醇、赤藓糖醇和木糖醇对甘薯淀粉溶胀度和可溶指数、糊化特性及淀粉凝胶质构特性的影响。结果表明:3种糖醇均明显降低了甘薯淀粉的溶胀度和溶解性,且随着添加量的增多,降低越明显;糊化温度随添加量的增多显著性升高;当麦芽糖醇和木糖醇的添加量与淀粉比值均为1∶1时,峰值黏度显著升高至最大值,添加量继续增多,淀粉糊的峰值黏度显著性降低;糖醇的添加量与淀粉比值小于4∶1时,随着木糖醇添加量增多,回生值升高,而赤藓糖醇的添加量对回生值没有显著性影响;随着糖醇添加量的增多,淀粉凝胶硬度增加越明显,麦芽糖醇和木糖醇对于凝胶弹性、内聚性和恢复性降低越明显。 相似文献
3.
4.
5.
不同种类甘薯淀粉混合对其物化特性及粉条品质的影响 总被引:1,自引:0,他引:1
以不同混合比例(100:0、75:25、50:50、25:75、0:100)的商薯19和广薯87淀粉为研究对象,分析其结构、物化特性及粉条品质特性等。结果表明,不同比例混合淀粉的基本成分、粒径及官能团结构表现为两种淀粉的加合效应;商薯19淀粉的糊化特性高于广薯87淀粉,低比例(≤50%)广薯87淀粉与商薯19淀粉的交互作用提高了混合淀粉的糊化特性,而高比例(>50%)广薯87淀粉的添加则对糊化特性产生拮抗作用;两种淀粉之间的拮抗作用降低了混合淀粉的溶解度,高比例(>50%)广薯87淀粉的添加对膨胀势的增加有协同效应;商薯19淀粉的起始温度与热焓值高于广薯87淀粉,二者之间的交互作用提高了混合淀粉的起始温度,降低了混合淀粉的热焓值。同时,混合淀粉的糊化特性和起始温度与粉条的品质特性呈正相关关系,因此可将上述因子作为淀粉混合的评价指标,指导粉条生产。 相似文献
6.
7.
添加不同种类淀粉对盐水火腿品质的影响 总被引:1,自引:1,他引:1
以猪肉为主要原料,制备盐水火腿,研究不同种类的淀粉对盐水火腿的保水保油性、质构、感官品质的影响.结果表明:在6种添加不同种类淀粉的火腿中,添加玉米原淀粉的盐水火腿保水保油性最差,添加木薯乙酰化双淀粉已二酸酯淀粉和复配淀粉C的盐水火腿保水保油性最好;添加复配淀粉C的盐水火腿质构最好,其次是添加复配淀粉B、木薯乙酰化双淀粉己二酸酯淀粉、复配淀粉A、玉米乙酰化二淀粉磷酸酯淀粉的盐水火腿,添加玉米原淀粉的盐水火腿质构最差;添加复配淀粉C的盐水火腿感官评价最好. 相似文献
9.
10.
11.
12.
This study assessed the effects of amino acid additives, aspartic acid, leucine, lysine, and methionine, on the thermal characteristics of white‐fleshed and orange‐fleshed Beauregard sweet potato starches. The orange‐fleshed sweet potato (OFSPS) starch began to gelatinize at a lower temperature (56.8°C) than the white‐fleshed sweet potato starch (WFSPS) (70.1°C), but the two starches needed the same amount of energy to gelatinize. Lysine increased the gelatinization temperature of the OFSPS. The addition of leucine, aspartic acid, and methionine had no apparent impact on the OFSPS. The addition of lysine or aspartic acid increased the gelatinization temperatures of the WFSPS. Overall, the two starches used were more affected by charged amino acids than by the neutral ones. 相似文献
13.
14.
ABSTRACT Potato and sweet potato starches and derivatives thereof were used to substitute part of the wheat flour in white salted noodle (WSN) manufacture. The quality of the WSN obtained was compared with the quality of WSN made from wheat flour only. When up to 20% of wheat flour was replaced by acetylated potato starch and acetylated sweet potato starches, the cooking loss of WSN decreased, while the softness, stretchability, and slipperiness increased significantly. Native and hydroxypropylated starches did not exhibit these effects. It can be concluded that the substitution of part of wheat flour with acetylated starches strongly affects noodle-making and final noodle quality, and starch substitution can be used to change the performance of a given wheat flour for noodle making in a desired way. 相似文献
15.
16.
18.
甘薯及马铃薯提取物的抗氧化活性研究 总被引:13,自引:0,他引:13
用活性氧法(AOM)及滤纸硫氰化铁新法研究了甘薯与马铃薯皮部与肉部提取物对大豆油的抗氧化活性。结果表明提取物具有很强的抗氧化活性。用简易的滤纸硫氰化铁法与酚试剂显色法初步考查显示,其有效成分含绿原酸、异绿原酸、4-O-咖啡酰奎尼酸和新绿原酸。各提取物分别含总酚0.50~13.8mg/g提取物。 相似文献