The main nutrients of apples: apples are rich in sugar, protein, fat, vitamin C, pectin, tannins, organic acids and calcium, phosphorus, iron, potassium and other minerals.
Extended Information
Apple is native to central and southeastern Europe, Central and West Asia, and Xinjiang, China.
In Europe in the third century B.C., M.P. Cato has documented varieties of apples. Subsequently, the Romans began to cultivate it, and there was grafting propagation. In the eighteenth century, J.B. Montgomery and T.A. had utilized natural hybridization for the selection of live seedlings,
and gradually promoted cultivation. After the discovery of the New World of America, European immigrants introduced apples to the Americas, where many new varieties were bred.
Japan in the Meiji Restoration era, the introduction of apples from Europe and the United States, was introduced to Asia. Since then, Oceania and Africa have also introduced apples.
In the last hundred years, the world's five continents have been apple cultivation. The earliest Europeans have eaten apples, and the improvement and breeding, some varieties as early as 2000 years ago, before the colonization of the Americas, Europe is known to hundreds of varieties.
With the wave of immigration to North America, live seedling apple varieties also spread everywhere, into the local legend of the traveling messenger, played a major role in the spread of apples, most notably John Chapman, nicknamed "Apple Man",
In Ohio and Indiana, widely planted apples. Indians and trappers may also have spread the apple.
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