| 淮山药淀粉及其抗性淀粉理化性质的比较 |
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| 引用本文： | 张丽芳,宋洪波,安凤平,蔡一楠,彭春红.淮山药淀粉及其抗性淀粉理化性质的比较[J].中国粮油学报,2014,29(3):24-29. |
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| 作者姓名： | 张丽芳 宋洪波 安凤平 蔡一楠 彭春红 |
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| 作者单位： | 福建农林大学食品科学学院,福建农林大学食品科学学院,福建农林大学食品科学学院,福建农林大学食品科学学院 |
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| 基金项目： | 福建省省长基金(2009SZJJ027) |
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| 摘 要： | 分析比较了淮山药淀粉及压热法制备的淮山药抗性淀粉的理化性质。结果表明:淮山药淀粉颗粒呈圆形或卵圆形,属C型淀粉;抗性淀粉颗粒为不规则形、多角形,尺寸较原淀粉有所减小。2种淀粉的化学结构相似,与原淀粉相比,抗性淀粉没有生成新的基团。抗性淀粉的溶解度、膨润度、透明度均低于原淀粉,而持水性、乳化性优于原淀粉;糊化温度较原淀粉高,热稳定性和冷稳定性更好。原淀粉糊和抗性淀粉糊均为屈服-假塑性流体,原淀粉糊易剪切稀化,抗性淀粉糊耐机械力的性能好。
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| 关 键 词： | 淮山药淀粉 抗性淀粉 理化性质 |
| 收稿时间： | 5/6/2013 12:00:00 AM |
| 修稿时间： | 2013/8/30 0:00:00 |
Physicochemical characteristics comparison ofDioscorea opposita Thunb. starch and resistant starch |
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| Abstract: | The physicochemical characteristics of Dioscorea opposita Thunb. native starch and resistant starch produced by autoclave process preparation method were analyzed and compared. The results showed that Dioscorea opposita Thunb. native starch granules exhibited roundness and oval, which was C pattern. Resistant starch granules exhibited irregular and polygon, and the granules size was smaller compared to the former. Both of them had similar chemical structure, no functional group in resistant starch granules. The solubility, swelling and transparency of resistant starch were lower, and the water binding and emulsifying capacity were higher than native starch. The pasting temperature of resistant starch was higher than native starch, and the former had better heat paste stability, cold paste stability and resistance to mechanical stress. |
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| Keywords: | Dioscorea opposita Thunb starch resistant starch physicochemical characteristics |
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