| 刺苦草根状茎淀粉特性的研究 |
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| 引用本文： | 于少梅,李梅青,杜先锋,魏光峰,徐文娟. 刺苦草根状茎淀粉特性的研究[J]. 中国农学通报, 2010, 26(5): 36-40 |
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| 作者姓名： | 于少梅 李梅青 杜先锋 魏光峰 徐文娟 |
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| 作者单位： | 1. 安徽农业大学茶与食品科技学院,合肥,230036
2. 安徽农业大学园艺学院,合肥,230036 |
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| 基金项目： | 安徽"十一·五"科技攻关计划项目"特种水生蔬菜刺苦草的种质驯化和产业化开发" |
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| 摘 要： | 系统研究了刺苦草根状茎淀粉的理化性质。结果表明，刺苦草根状茎淀粉形状较一致，呈椭圆形、锥形，淀粉颗粒表面光滑，大小在8～36μm之间。X-射线呈B型结晶图样，结晶度为47.2%。刺苦草根状茎淀粉的糊化温度为66℃。与对照相比，刺苦草根状茎淀粉具有较高的透明度，较好的冻融稳定性，较易凝沉。刺苦草根状茎淀粉糊具有非牛顿流体的特性，属于剪切稀化体系。
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| 关 键 词： | 叶籽银杏 叶籽银杏 trnS-trnG序列 序列分析 |
| 收稿时间： | 2009-10-09 |
| 修稿时间： | 2009-10-31 |
Study on Properties of Starch from the caudex of Vallisneria Spinulosa Yan |
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| Yu Shaomei,Li Meiqing,Du Xianfeng,Wei Guangfeng,Xu Wenjuan. Study on Properties of Starch from the caudex of Vallisneria Spinulosa Yan[J]. Chinese Agricultural Science Bulletin, 2010, 26(5): 36-40 |
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| Authors: | Yu Shaomei Li Meiqing Du Xianfeng Wei Guangfeng Xu Wenjuan |
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| Affiliation: | Yu Shaomei1,Li Meiqing1,Du Xianfeng1,Wei Guangfeng1,Xu Wenjuan2,(1School of Tea & Food Science & Technology,Anhui Agricultural University,Hefei 230036,2School of Horticulture,Hefei 230036) |
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| Abstract: | The physical and chemical properties of starch from Vallisnena spinulosa Yan root granules and paste were systematically studied. Starch from Vallisnerla spinulosa Yan root are uniform in shape comparatively, close to ellipse and taper with smooth surface and different size from 8 to 36μm. Starch from Vallisneria spinulosa Yan root is attributed to B-type crystal structure and its degree of crystallinity is 47.2%. The initial temperature of gelatinization is 66℃. The starch paste has low transparence, more freeze-thawing stability, and not easy retro gradation and aging characters. The viscosity reduces along with the shearing speed increasing, showing pseudo plastic characteristic. |
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| Keywords: | Vallisneria spinulosa Yan root starch from Vallisneria spinulosa Yan root physicochemical property |
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