Qian Bingjun, Huang Lei, Zhao Jing, Zhu Juan
Department of Preventive Medicine, Institute of Biomedical Technology, Jiangsu Vocational College of Medicine, Jiangsu, 224005 People's Republic of China.
Food Sci Biotechnol. 2021 Mar 27;30(4):505-512. doi: 10.1007/s10068-021-00894-z. eCollection 2021 Apr.
In this study, the physiochemical and antioxidant properties of the soybean hulls from the genetically modified glyphosate-tolerant soybeans (line 40-3-2) and local cultivar northeast soybeans were investigated. The levels of fat, total phenolic, total extractable pectin and soluble dietary fiber in northeast soybeans hulls were less than that in glyphosate-tolerant soybeans hulls, respectively. The antioxidant capacity of total phenolic, water soluble pectin, and soluble dietary fiber showed that DPPH free radical scavenging activities of glyphosate-tolerant soybeans hulls were 118.23, 57.34 and 197.22 μg AAE/g, which were 2.3, 1.2 and 9.4 times of northeast soybeans hulls, respectively ( < 0.05), and FRAP of glyphosate-tolerant soybeans hulls were 401.67, 747.51 and 328.53 μg AAE/g, which were 1.8, 8.7 and 4.8 times of northeast soybeans hulls ( < 0.05). Glyphosate-tolerant soybeans hulls extract showed the stronger antioxidant activity, which was positively correlated with total phenolic content (r = 0.890, = 0.001). It provides evidence on developing value-added utilization of hulls, soybean processing by-products, as nutraceuticals or functional food ingredients.
本研究对转基因抗草甘膦大豆（40-3-2品系）和当地品种东北大豆的豆皮进行了理化性质和抗氧化性能研究。东北大豆豆皮中的脂肪、总酚、总可提取果胶和可溶性膳食纤维含量分别低于抗草甘膦大豆豆皮。总酚、水溶性果胶和可溶性膳食纤维的抗氧化能力表明，抗草甘膦大豆豆皮的DPPH自由基清除活性分别为118.23、57.34和197.22 μg AAE/g，分别是东北大豆豆皮的2.3、1.2和9.4倍（P<0.05），抗草甘膦大豆豆皮的FRAP分别为401.67、747.51和328.53 μg AAE/g，分别是东北大豆豆皮的1.8、8.7和4.8倍（P<0.05）。抗草甘膦大豆豆皮提取物表现出较强的抗氧化活性，且与总酚含量呈正相关（r = 0.890，P = 0.001）。这为将豆皮这一大豆加工副产品作为营养保健品或功能性食品成分进行增值利用提供了依据。
