Analysis of nutrient and medicinal ingredients of Ginkgo pollen in different regions.

Ginkgo pollens are rich in essential amino acids, vitamins, flavonoids and other ingredients, can be widely used in the development of health products and other nutrition utilization, but whether there are differences between Ginkgo pollens from different regions had not been finalized. The contents of vitamin B1, vitamin B2, vitamin C, amino acids, total flavonoids of Ginkgo pollen were measured from 18 Chinese Cities. The average contents of vitamin B1, vitamin B2, vitamin C, amino acids, total flavonoids of Ginkgo pollens of 18 cities were respectively 0.1211 mg.g^-1, 0.6476 mg.g^-1, 0.1135 mg.g^-1, 225.2 mg.g^-1 and 27.41 mg.g^-1. The highest three of vitamin B1 were Gunlin, Lueyang and Pizhou amount the 18 regions, respectively was 0.2239 mg.g^-1, 0.2167 mg.g^-1 and 0.1912 mg.g^-1; the highest three of vitamin B2 were Pizhou, Fenghua and Doujiangyan, respectively was 1.1875 mg.g^-1, 1.0442 mg.g^-1and 0.9333 mg.g^-1; the highest three of vitamin C were Xixia, Fenghua and Tengchong, respectively was 0.2061 mg.g^-1, 0.1882 mg.g^-1 and 0.1828 mg.g^-1; the highest three of amino acids were Guilin, Changxing and Xinxian, respectively was 253.3 mg.g^-1, 252.8 mg.g^-1 and 249.8 mg.g^-1; the highest three of total flavonoids were Nanxiong, Kangxian and Lueyang, respectively was 36.58 mg.g^-1, 32.93 mg.g^-1 and 31.80 mg.g^-1. The result showed that there were significant differences in the nutrient and medicinal ingredients from diffrent regions. [ABSTRACT FROM AUTHOR]