| 新收获小麦生芽粒及其对降落数值的影响 |
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| 引用本文： | 魏红艳,赵艳妍,李改婵,吴晓冬,吕军仓.新收获小麦生芽粒及其对降落数值的影响[J].粮食储藏,2013(6):42-45. |
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| 作者姓名： | 魏红艳 赵艳妍 李改婵 吴晓冬 吕军仓 |
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| 作者单位： | 中储粮西安分公司质检中心,710016 |
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| 摘 要： | 小麦生芽粒包括萌动粒及较为严重的发芽小麦,当生芽率大于10％时,对小麦的工艺品质、储藏品质、加工品质都会造成影响.生芽后,会产生大量的α—淀粉酶,而降落数值能反映α-淀粉酶活性及小麦发芽损坏程度.通过选取陕西地区2013年新收获小麦并检测其生芽率和降落数值,发现降落数值低于150 s的占37.5％,在200 s～300 s之间的占62.5％,而且随着生芽率的增加,降落数值呈下降趋势,此试验对加强储藏条件的选择和控制,减少储藏期间的损失提供参考.
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| 关 键 词： | 生芽率 降落数值 α—淀粉酶 小麦储藏 |
THE NEWLY HARVESTED GERMINATIVE WHEAT AND ITS IMPACT ON THE FALLING NUMBER |
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| Institution: | Wei Hongyan Zhao Yanyan Li Gaichan Wu Xiaodong Lu Juncang (Quality Inspection Center of Xi＇an Branch, State Grain Reserves 710016) |
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| Abstract: | Germinative wheat includes germinating wheat and more serious germinative wheat. When the germi- nation percentage is higher than 10%, its process quality, storage quality, processing quality will be af- fected. When wheat has germinated, it will produce a large number of a-amylase. The falling number can reflect the α-amylase activity and the extent of germination. We selected the new harvested wheat of Shaanxi Province in 2013, determined its germination percentage and failing number in this study. Through analysis of the data we found that fewer than 150s of the falling number accounted at 37.5%, whereas, between 200s and 300s of that accounted at 62.5%. Besides, with increasing of the germination percentage, the falling number showed the tendency of decline. This article could provide a reference for reinforcing the selection and control of storage conditions, which reduced the losses during storage. |
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| Keywords: | germination percentage falling number a--amylase wheat storage |
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