Comparison and analysis of physico- chemical components of Rose rugosa cv.‘Plena'in different harvest period
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摘要: 比较分析不同采摘时期的云南食用重瓣红玫瑰花中总糖、蛋白质、粗纤维、维生素C、花色苷、总黄酮及矿质元素的变化,探讨采摘时期、光照和积温对样品理化成分的影响规律。结果表明:云南安宁种植的食用重瓣红玫瑰花中的各种理化成分随采摘时期改变,除了与花期有关外,光照和积温和对其均有影响。总糖、粗纤维、维生素C、花色苷及总黄酮的含量总体与光照时间和积温呈正相关,积温对花色苷和黄酮代谢积累的影响较光照强,光照与积温对糖的代谢积累的影响较粗纤维显著;矿质元素中含量变化较为显著地是K和Na,5月份样品含量最大,分别为235.0、6.4 mg/100 g;Ca和Zn的含量都是在6月份达到最大值,分别为16.9、0.49 mg/100 g;Fe的含量在4月份维持较高水平,为2.0 mg/100 g。Abstract: The Physico- chemical properties of Yunnan Rose rugosa cv.‘Plena'were analysed and compared in different picking period,including sugar,protein,crude fibre,vitamin C,anthocyanin,general flavone and mineral elements.At the same time,the influencing regulation of illumination and accumulated temperature to physico-chemical components was investigated.The results showed: all physico- chemical properties changed with picking period,and was affected by flowering phase,illumination and accumulated temperature. On the whole,content of sugar,crude fibre,vitamin C,anthocyanin,general flavone had positive correlation with illumination time and accumulated temperature. Accumulated temperature 's effect was more remarkable than the illumination on metabolism and accumulation of anthocyanin and general flavone,and illumination and accumulated temperature had a greater effect than crude fiber on metabolism and accumulation of sugar. Among the mineral elements,content of K and Na changed significantly,which went to the peak in May,respectively were 235.0,6.4 mg /100 g;content of Ca and Zn went to maximum in July,respectively were 16.9,0.49 mg /100 g; content of Fe was at higher level in April,respectively was 2 mg /100 g.
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