Take jujube as an example.
Wang Kui grade: 180 ~ 220 red dates per kilogram; No pests and cracks, rosy color. ?
Super grade: 220 ~ 260 red dates per kilogram; No pests and cracks, rosy color.
Grade I: 260 ~ 360 red dates per kilogram; No pests and cracks, rosy color.
Grade II: 460 red dates per kilogram; Insects, crevasses and other injuries are allowed to account for 6%.
Grade 3: Hengcai Jujube, the color varies from orange to red, allowing pulp shrinkage, poor flavor, allowing pests, cracks and other damage.
Accounting for 10%.
Jujube outside the grade: the quality is the worst.
Extended data:
China's cursive book "Ben Jing" records that red dates are sweet in taste and warm in nature, belonging to the spleen and stomach meridian, and have the functions of nourishing the middle energizer, nourishing blood and calming the nerves and relaxing the medicinal properties; However, modern pharmacology has found that jujube is rich in nutrients such as protein, sugar, organic acids, vitamin A, vitamin C, various trace calcium and amino acids.
Jujube can improve human immunity and inhibit cancer cells: pharmacological studies have found that jujube can promote leukocyte production, reduce serum cholesterol, increase serum albumin and protect the liver. Jujube also contains substances that inhibit cancer cells and even transform cancer cells into normal cells.
People who often eat fresh dates seldom suffer from gallstones. This is because the rich vitamin C in fresh dates converts excess cholesterol into bile acids. With less cholesterol, the probability of stone formation will decrease.
References:
Baidu Encyclopedia-Jujube