一般人认为,清晨采摘的蔬菜新鲜、水灵、味道好,但研究人员最近发现,傍晚时分采摘的蔬菜味道更鲜美,这是通过测定毛豆、油菜等蔬菜在一天中各种美味成分的变化情况后得出的结论。研究人员以普通露天栽培的毛豆和油菜为对象进行了研究和测定。为防止蔬菜采摘后各种成分发生变化,他们将采摘后的蔬菜立即进行了冷冻,然后再用液体色层分析法等对这些蔬菜的各种成分进行测定。从毛豆的测定情况来看,不同时间采摘的毛豆其美味成分差异很大。其中蔗糖的含量日落前后最高, Most people think freshly picked vegetables are fresh and juicy in the early morning, but researchers have recently found that the vegetables picked in the evening are more delicious. This is done by measuring the changes of various delicious ingredients in green beans and rapeseed during the day Out of the conclusion. Researchers in the open-air cultivation of soybean and rape were studied and measured. In order to prevent the variety of vegetables after picking the ingredients change, they will pick vegetables immediately after freezing, and then liquid chromatography and other components of these vegetables were determined. Determination of the situation from the soybeans point of view, pickled soybeans at different times its delicious ingredients vary widely. Sucrose content in which the highest before and after sunset,