Blue tomato, because it contains toxic solanine. Eating immature cyan tomatoes will make you feel bitter and overeat, which can seriously lead to poisoning, dizziness, nausea, general malaise, vomiting and general fatigue, and even life-threatening in serious cases.
Before the first frost, if there are green fruits that can't be ripened, they should be harvested and stored in the greenhouse, and then listed after the fruits are ripened, which not only prolongs the supply period, but also increases the economic benefits. It is not suitable to stimulate fruit coloring with hormones in the post-ripening period, and it is sold in boxes after selection. Its advantages are not only reducing production costs, improving fruit quality, but also ensuring the food safety of consumers.
Extended data:
edibleness
Tomato fruit is rich in nutrition and has a special flavor. Can be eaten raw, cooked, processed into tomato sauce, juice or whole fruit can.
The edible parts of tomatoes are juicy berries. There are many varieties of it, which can be divided into round, oblate, oblong and pointed round according to the shape of the fruit; According to the color of the peel, there are red, pink, orange and yellow.
Red tomatoes, with fiery red fruit, are generally slightly oblate and spherical, with small umbilicus, thick meat, sweet taste, refreshing juice and good flavor. They can be eaten raw or cooked, and can also be processed into tomato sauce and tomato juice. Pink tomato, pink fruit, nearly spherical, small navel, smooth fruit surface, moderate sweet and sour taste, good quality, yellow tomato, large orange fruit, spherical, thick pulp, sandy meat surface, light raw taste, suitable for cooked food.
Quality requirements of tomatoes: generally, the shape of tomatoes is round, with no cracks or insect bites, moderate maturity, sweet and sour taste, fleshy and small ventricles. Appropriate choice of ripe and moderate tomatoes, not only tastes good, but also has high nutritional value.
Baidu Encyclopedia-Tomato (Solanaceae Solanum)