Characterization of Protein and Oil in Winter-Hardy Faba Bean (Vicia faba L.) Grown in Virginia (USA)

Harbans L. Bhardwaj

Journal of Agricultural Science, 2025, vol. 17, issue 8, 43

Abstract: We had previously reported that faba bean (Vicia faba L.) has considerable potential as an alternate winter food legume crop in the eastern USA to supply green immature seeds. Current study was conducted to characterize protein quality of mature faba bean seed. We determined concentrations of protein and oil in mature seeds of two winter-hardy faba bean breeding lines. Two faba bean lines (VSX-BL and VSX-BH) were planted in the field in November 2022 and mature pods were harvested in July 2023. The mean values for protein and oil concentrations were 23.4 and 1.42 percent, respectively. The mean values for Alanine, Arginine, Aspartic acid, Glutamic acid, Cystine, Glycine, Histidine, Isoleucine, Lysine, Phenylalanine, Proline, Serine, Threonine, Total Lysine, Tyrosine, Valine, Methionine, and Tryptophan were 1.02, 2.00, 2.58, 3.92, 0.25, 1.04, 0.62, 0.98, 1.79, 1.03, 1.00, 1.17, 0.86, 1.64, 0.59, 1.11, 0.19, and 0.23 percent, respectively. The mean values for saturated, poly- and mono-unsaturated fatty acids were 0.32, 0.64, and 0.38 percent, respectively. The two winter-hardy lines had significantly different concentrations of several amino acids but variation for fatty acids was not significantly different. Concentrations of oil, protein, amino acids, and fatty acids in our studies were intermediate between soybean and pea seeds. Based on challenges with soybean and pea seeds, we conclude that faba bean seeds produced in Virginia provide a potential source of plant proteins.

Date: 2025
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