Effect of Exogenous Melatonin on the Quality of Soybean and Natto Products under Drought Stress

Liang Cao
Fang Kou
Mingcong Zhang
Xijun Jin
Chunyuan Ren
Gaobo Yu
Yuxian Zhang
Mengxue Wang

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Publication date

January 2021

DOI

10.1155/2021/8847698

Publisher

Hindawi Limited

Journal

Journal of Chemistry

Abstract

Melatonin can directly or indirectly eliminate reactive oxygen species, regulate hormone levels, and improve drought-stressed soybean crop resistance, yield, and quality. The nutrient contents of soybeans grown under normal conditions (WW), drought stress (D), and drought stress with exogenous melatonin (D + M) (p<0.05) were compared. The differences in the quality of natto from the three groups of soybeans were also analyzed. The results showed that compared with soybeans under normal conditions, those grown under drought stress had reduced yield and carbohydrate, protein, essential amino acid, soybean isoflavone, and other nutrient contents. Besides, natto presented low nattokinase levels (674 U/mL), natto drawing ability was weak, the su...