Why are oranges sweet and bitter after heating?

Oranges belong to the genus Citrus, and their bitter taste contains special limonin, which decomposes after heating, so oranges become bitter.

Studies have shown that drinking three glasses of orange juice a day can reduce the cholesterol content in the body. Oranges in different regions taste slightly different. The acid content of oranges in Huguang area is low, while that in the Yangtze River area is slightly higher.

Familiar oranges, such as mandarin oranges, banana oranges and red oranges. Most of them are hybrids of oranges and oranges. The peel is harder than oranges, but easier than oranges that need to be cut with a knife. Citrus juice is rich in sugar, organic acids, minerals and other nutrients.

Extended data:

Limonin and other similar compounds are the main causes of bitter taste of citrus fruits, and researchers have proposed orange juice and other products that use polymer films to remove limonin. Limonin analogues mainly exist in the fruits of rutaceae plants, such as Fructus Aurantii Immaturus (navel orange, orange, orange) pomelo.

The content in stone (seed) is high, and the content in peel is low (about110000 ~ 5/100000). There are about 50 limonoids isolated and identified from citrus plants, among which limonoids, nomilin, deacetyl nomilin, obaquinone and nominic acid are common furan ring triterpenes.

People's Daily Online Oranges, Oranges and Grapefruits are far from nutritious.

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