The results showed that three fractional peptides were fractionated on a SephadexG-50 gel filtration from the black-soybean peptides,BSP3 had the maximum scavenging rate to DPPH· free radical and its half scavenging concentration was 0.

The free radical scavenging ability in chemically modeled systems and the restraining ability of malondialdehyde(MDA) production in mice liver homogenate were used to estimate the antioxidant capabilities of black soybean oligopeptides.

Preparation and application of soybean polypeptides;

Using AN as standards, the optimized conditions of one enzyme hydrolysis, the order of double enzymes hydrolysis and the best condition of low molecular weight polypeptides have been found , with capillary electrophoresis,the molecular weight of soybean polypeptides were determined.

As a new prodution of soybean,soybean polypeptides has specially properties and physiologically function.

Preparation of soybean peptides by composite proteases;

Study on the extraction technique of soybean peptides by triple-enzyme composite hydrolysis;

Properties and application research state of soybean peptides;

Optimum research of decolouring technology of soybean peptide;

Studies on optimizing soybean meal fermentation conditions to produce soybean peptides by aspergillus niger with RSM;

Purification and antioxidant activity of soybean peptide;