摘要： 以红肉脐橙为试材,于果实着色前对其进行DMSO喷布处理,研究了处理对果皮主要色素和糖含量变化的影响,并对处理后各指标之间的相关性进行了分析。结果表明:着色前DMSO处理不影响果皮叶绿素和类胡萝卜素含量的变化趋势,但处理加快了果皮叶绿素的降解,延缓了成熟期类胡萝卜素含量的上升;处理基本不改变果皮葡萄糖、果糖、蔗糖和总糖含量的变化趋势,但处理加快了果皮葡萄糖、果糖和总糖含量的上升,极显著降低了果皮蔗糖含量;处理和对照果皮的叶绿素与类胡萝卜素含量均呈负相关但未达到显著水平,与葡萄糖、果糖和总糖均呈极显著负相关,与蔗糖含量呈正相关但未达到显著水平。

关键词: 红肉脐橙, 叶绿素, 类胡萝卜素, 葡萄糖, 果糖, 蔗糖, 总糖

Abstract: Effects of DMSO treatment before fruit coloring on changes of dominant pigments and sugar concentration in peel of Cara Cara Navel Orange were studied,and the correlation among the indexes after treating were analyzed.The results showed that DMSO treatment didn't affect the changing trends of chlorophyll and carotenoid,but accelerated the degression of chlorophyll and delayed the ascending of carotenoid during fruit maturation.DMSO treatment didn't change the changing trends of glucose,fructose,sucrose and total sugar concentration,but accelerated the rising of glucose,fructose and total sugar concentration and decreased sucrose concentration very significantly in peel.The chlorophyll concentration of peel both DMSO treatment and control was negative correlation to carotenoid but didn't reach significant level,was very significantly negative correlation to glucose,fructose and total sugar concentration,and was positive correlation to sucrose concentration but didn't reach significant level.

Key words: Cares Cares Navel Orange, Chlorophyll, Carotenoid, Glucose, Fructose, Sucrose, Total sugar

中图分类号: 

• S666.4