This present study investigated the ability of various soy protein hydrolysates (SPHs) in binding calcium. It was demonstrated that the amount of Ca-bound depended greatly on the SPHs obtained using different protease...This present study investigated the ability of various soy protein hydrolysates (SPHs) in binding calcium. It was demonstrated that the amount of Ca-bound depended greatly on the SPHs obtained using different proteases, which included: neutrase, flavourzyme, protease M and pepsin. The maximum level of Ca-bound (66.9 mg/g) occurred when protease M was used to hydrolyze soy protein. Peptide fragments exhibiting high Ca-binding capacity had molecular weights of either 14.4 or 8–9 kDa. The level of Ca-bound increased linearly with the increment of carboxyl content in SPHs, and further deamidation on SPHs from protease M improved Ca-binding of the hydrolysate.展开更多
Like many other properties of the molecular orbital (MO), such as energy level,electron negativity and charge distribution, the binding force of the molecular orbitalis regarded as an important physical concept to des...Like many other properties of the molecular orbital (MO), such as energy level,electron negativity and charge distribution, the binding force of the molecular orbitalis regarded as an important physical concept to describe the binding property of themolecular orbital. The MO’s are divided into binding orbital, nonbinding orbital andantibinding orbital according to their respective binding effect. The binding charac-ter of an MO can be determined through the measurement of the changes in展开更多
文摘This present study investigated the ability of various soy protein hydrolysates (SPHs) in binding calcium. It was demonstrated that the amount of Ca-bound depended greatly on the SPHs obtained using different proteases, which included: neutrase, flavourzyme, protease M and pepsin. The maximum level of Ca-bound (66.9 mg/g) occurred when protease M was used to hydrolyze soy protein. Peptide fragments exhibiting high Ca-binding capacity had molecular weights of either 14.4 or 8–9 kDa. The level of Ca-bound increased linearly with the increment of carboxyl content in SPHs, and further deamidation on SPHs from protease M improved Ca-binding of the hydrolysate.
文摘Like many other properties of the molecular orbital (MO), such as energy level,electron negativity and charge distribution, the binding force of the molecular orbitalis regarded as an important physical concept to describe the binding property of themolecular orbital. The MO’s are divided into binding orbital, nonbinding orbital andantibinding orbital according to their respective binding effect. The binding charac-ter of an MO can be determined through the measurement of the changes in
