The nutrition of winter beans is comprehensive and balanced. Pea seeds consist of seed coat, cotyledon and embryo. Among them, protein, fat, carbohydrates and minerals in the cotyledons of dried peas account for 96%, 77% and 89% of the total nutrients in the seeds, respectively. Although embryo contains protein and mineral elements, it accounts for a small proportion in grain.

The seed coat contains most indigestible carbohydrates, and the contents of calcium and phosphorus are also more. Albumin, globulin and glutenin in pea protein accounted for 265, 438 0%, 66% and 2% respectively. It is reported that the biological value (BV) of pea protein is 48%~64%, and the efficacy ratio (PER) is 0.6- 1.2, which is higher than that of soybean.

The reason why the nutritional value of pea protein can't be fully exerted is poor digestibility. Pea seeds are rich in nutrients, including protein 23.4%, fat 1.8%, carbohydrate 52.6%, carotene, vitamin B 1, B2, etc.

Extended data:

Pea is a semi-hardy crop, which likes mild and humid climate and is not resistant to dry heat. Pea is a long-day crop, which likes temperature and has poor drought resistance. Pea has wide adaptability to soil and low requirements for soil quality. Sandy loam and loam with strong water holding capacity, good aeration and rich humus are the most suitable. The ph value is 6.0-7.2.

China is mainly distributed in the central and northeastern regions. The main producing areas are Sichuan, Henan, Hubei, Jiangsu, Qinghai, Jiangxi and other provinces. Pea is native to China and Central Asia, mainly distributed in Asia and Europe.

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