Grapefruit can be divided into two categories: sour pomelo and sweet pomelo according to the flavor of pulp, white pomelo and red pomelo according to the color of pulp, and spherical or pear-shaped pomelo according to the shape of fruit. But both sour pomelo and sweet pomelo have white meat and red meat, spherical and pear-shaped pomelo, and even milky yellow pulp. As for the pulp of red pomelo, it is reddish to purplish red.
The fruit shape of sour pomelo is usually oblate or spherical, with thick peel and high oil content. The pulp tastes sour to very sour, and some have bitter taste and hemp tongue taste. Sour pomelo is often used as rootstock to graft pomelo.
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Pomelo is big and juicy, and the weight of a single fruit is generally 1.25-2 kg, and the highest is 3.5 kg. The peel is orange and fragrant; The pulp is tender and juicy, the edible part of the fruit is 45-65%, the juice content is 53%, the total sugar content of the pulp is 7.4- 12% (there are some differences among varieties), the acid content is 1. 1.4%, and the soluble solid content is10-655.
Every100g of edible part contains 34.8-45mg of vitamin C, vitamin B 1, B2, β-carotene, other vitamins and various minerals. Grapefruit is called "natural canned" because of its high sugar content, moderate sweetness and sourness, rich nutrition and storage resistance. The pulp contains high vitamin C, which can promote digestion and relieve alcoholism.