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首页> 外文期刊>Acta Agriculturae Scandinavica. Section B, Soil and Plant Science >Phytochemical composition of onion during long-term storage
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Phytochemical composition of onion during long-term storage

机译：长期储存洋葱的植物化学成分

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摘要

Onion cultivar "Sunpower" has growing popularity in Korea due to high storability. The present study considers changes in flavonols, sugars, and two amino acids in onion bulbs during a long-term storage in the ambient dark storage room and in glasshouse equipped with a climate control system. Flavonol and sugar contents were found to fluctuate noticeably during the storage period. Amino acid content remained relatively unchanged till the onset of inner sprouting, increasing afterward. Visible sprouts appeared at week 22 in the dark storage room and for four weeks later in the glasshouse. The bulbs lost 20-30% of their weight depending on storage conditions at the end of the storage trials. At the same time, the content of nutraceutics in study expressed on the dry weight basis remained of the same order of magnitude. The nature of observed variations in chemical composition of onions as well as relation of this phenomenon to physiological development of stored onion bulbs is discussed. A conclusion is made that the "Sunpower" onion cannot sustain overwinter storage.
机译：洋葱品种“ Sunpower”由于其高存储性而在韩国越来越受欢迎。本研究考虑了在长期存放于环境黑暗的储藏室和装有气候控制系统的温室中，洋葱鳞茎中的黄酮醇，糖和两种氨基酸的变化。发现黄酮醇和糖含量在储存期间明显波动。氨基酸含量直到内部发芽开始一直保持相对不变，此后逐渐增加。在第22周的黑暗储藏室中出现了可见的芽苗，在温室中出现了四个星期。在储存试验结束时，根据储存条件，灯泡损失了20-30％的重量。同时，以干重为基础表示的研究中的营养保健品含量保持相同数量级。讨论了观察到的洋葱化学成分变化的性质，以及这种现象与所存储洋葱鳞茎生理发育的关系。结论是“ Sunpower”洋葱不能维持越冬储存。

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