数字农科院2.0

淀粉-糖代谢酶活性变化对马铃薯块茎还原糖积累及加工品质的影响

文献类型： 中文期刊

作者： 成善汉;苏振洪;谢从华;柳俊

作者机构：

关键词： 马铃薯;还原糖;炸片色泽指数;AGPase;UGPase;SP;SuSy;Invertase

期刊名称：中国农业科学

ISSN： 0578-1752

年卷期： 2004 年 37 卷 12 期

页码： 1904-1910

收录情况： 北大核心 ; CSCD

摘要： 以不同贮藏温度条件下的‘鄂马铃薯1号’和‘鄂马铃薯3号’品种为材料,对贮藏块茎还原糖、总糖含量及淀粉-糖代谢中酶活性变化规律进行研究,以明确马铃薯炸片色泽指数的主要影响因素。结果表明,贮藏期间低温是促进块茎还原糖累积的主要影响因素,还原糖含量与炸片色泽具有极显著直线正相关。进一步分析表明,在4℃贮藏条件下,腺苷二磷酸葡萄糖焦磷酸化酶(AGPase)、尿苷二磷酸葡萄糖焦磷酸化酶(UGPase)和蔗糖合成酶活性(SuSy)与块茎还原糖含量呈显著负指数相关,酸性转化酶(Acid Inv)和碱性转化酶活性(Alkaline Inv)与块茎还原糖的积累呈显著直线正相关,是淀粉-糖代谢过程中影响块茎低温糖化的重要因素。

分类号： S532

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