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Acta Horticulturae Sinica ›› 2025, Vol. 52 ›› Issue (1): 213-228.doi: 10.16420/j.issn.0513-353x.2023-1029

• Cultivation·Physiology & Biochemistry • Previous Articles     Next Articles

Influence of Different Sowing Dates on the Quality of Vegetable Soybeans

ZHANG Shiqi1, HUANG Lu2, CHENG Xi2, ZHANG Xiaoyan2, YUAN Yuting2, HOU Yichen2, DAI Dongqing2, XIA Xiudong4, YUAN Xingxing2, CHEN Xin2,3, ZHU Yuelin1,*(), XUE Chenchen2,3,*()   

  1. 1 College of Horticulture,Nanjing Agricultural University,Nanjing 210095,China
    2 Institute of Industrial Crops,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China
    3 College of Food Science and Engineering,Jiangsu University,Zhenjiang,Jiangsu 212013,China
    4 Institute of Agro-Product Processing,Jiangsu Academy of Agricultural Sciences,Nanjing 210014,China
  • Received:2024-10-22 Revised:2024-11-25 Online:2025-01-25 Published:2025-01-19
  • Contact: ZHU Yuelin, XUE Chenchen

Abstract:

In this study,the effects of different sowing dates on the main qualities of vegetable soybeans were investigated. The cultivars‘Sucheng 4’‘Suxin 6’and‘Xin 3’,which have been popularized in large areas in Jiangsu Province in recent years,were selected as test materials. The effects of different sowing dates(15 April,15 May,15 June)on their nutrient composition(crude protein,crude fat,peptides below 10 kD,free amino acid content,sugar components)and edible quality(taste response value,aroma response value,volatile compounds)of vegetable soybeans were analyzed by the electronic tongue,the electronic nose and the gas chromatography-mass spectrometry(GC-MS). Results showed that the crude protein content and sucrose content changed in the same trend with the delay of sowing date,showing a trend of increasing and then decreasing. The crude fat content decreased first and then increased,and reached the minimum value under 15 May sowing date. In terms of edible quality,the sweetness and umami response values of the cultivars showed significantly difference under different sowing treatments. Ketones,aldehydes and nitrogenous were detected as main substances by the electronic nose. In addition,GC-MS results showed that hexanal,1-hexanol and 1-octen-3-ol were identified as the main flavor constituents of vegetable soybeans. Affiliation function analysis revealed that the three cultivars had the best combined performance in terms of major quality traits under 15 May sowing period. Correlation analysis showed that sucrose and free amino acid content were positively correlated with e-tongue sweetness response value and umami response value,respectively. In conclusion, sowing in mid-May showed the best quality performance of vegetable soybean cultivars with the highest umami and sweet taste, and the nutritional quality of‘Suxin 6’and the edible quality of‘Sucheng 4’were superior to other cultivars.

Key words: vegetable soybean, sowing date, nutritional quality, edible quality, GC-MS