摘要
以"青芋2号"菊芋为材料,研究贮藏期内不同贮藏方式下菊芋块茎碳水化合物的变化动态。结果表明:在贮藏至第15天,总果聚糖含量保持稳定,同时低聚合度果聚糖和单、双糖含量迅速增加;15～56d高聚合度果聚糖含量总体呈下降趋势,但呈现起伏变化,低聚合度果聚糖和单、双糖含量缓慢增加至峰值;56～113d高聚合度果聚糖和总果聚糖含量迅速下降,低聚合度果聚糖和蔗糖含量保持稳定,还原糖也逐步降低。贮藏结束时,菊芋块茎总体呈现果聚糖聚合度降低、果聚糖总量减少、单双糖增加、可溶性总糖增加的趋势。不同贮藏方式对碳水化合物代谢有很大影响,室外堆放和库藏时,块茎内的果聚糖聚合度降低、含量大幅度减少,单双糖含量大幅度增加。
Jerusalem artichoke(Qingyu 2)was used to study the change of the carbohydrates content of tuber in different storage conditions.The results showed that the content of general fructan remained steady,simultaneously the content of low DP fructan and simple sugar and polysaccharide increased rapidly during 0～15d;the content of high DP fructan fall down on the whole,it was unsteady and fluctuating,the content of low DP fructan and simple sugar and polysaccharide increased gradually to peak during 15～56 d;the content of high DP fructan and general fructan decreased rapidly,the content of low DP fructan remained steady,reducing sugar content progressively reduced during 56～113 d.The trend that polymerization degree and general fructan reduced and simple sugar and polysaccharide and soluble sugar content increased assumed of when the storage ended.The different storage style affected greatly the metabolism of carbohydrates,the DP reduced and the content decreased by leaps and bounds,simple sugar and polysaccharide increased by using outdoor storage and pool storage.
出处
《北方园艺》
CAS
北大核心
2011年第11期131-134,共4页
Northern Horticulture
基金
国家自然科学基金资助项目(30660089)
青海省重点科技攻关资助项目(2008-N-128)
关键词
菊芋
贮藏
碳水化合物
果聚糖
Jerusalem artichoke
storage
carbohydrate
fructan
