The Effect of Various Acids on the Digestion of Proteins by Pepsin

Improvement of Leishmania major Amastigote ELISA Test Using Various Antigen Antibody Dissociating Agents and Pepsin Digestion.

Processing Optimization of Production of Hydrolyzed Protein from Orange Seed Waste with Pepsin Enzyme

Background and Objectives: The results of observations and studies over the years have shown that health and nutrition are highly related with each other. Bioactive peptides are defined as hydrolyzed proteins, which have the ability to stimulate the desired activities. In this study, the effect of adding pepsin enzyme on orange seed protein was investigated to obtain the hydrolyzed protein, and...

Relationship between in vitro digestion of proteins and in vivo assessment of their nutritional quality.

The relationship between the nature of in vitro digestion products and protein quality evaluation in rats was established. Eleven protein sources of animal and vegetable origin and of various purities were digested by pepsin then by pancreatin in a dialysis bag of 1,000 molecular weight cutoff. Animal proteins were generally better digested in vitro than vegetable proteins. Amino acid release p...

The Mechanism of the Influence of Acids and Alkalies on the Digestion of Proteins by Pepsin or Trypsin

1. The effect of the addition of acid on the amount of ionized protein has been compared with the effect on the rate of digestion of gelatin, casein, and hemoglobin by pepsin. 2. A similar comparison has been made of the addition of alkali in the case of trypsin with gelatin, casein, hemoglobin, globin, and edestin. 3. In general, the rate of digestion may be predicted from the amount of ionize...

Characterization, amino acid composition and in vitro digestibility of hemp (Cannabis sativa L.) proteins

The protein constituents and thermal properties of hemp (Cannabis sativa L.) protein isolate (HPI) as well as 11Sand 7S-rich HPIs (HPI-11S and HPI-7S) were characterized by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) and different scanning calorimetry (DSC), and their amino acid composition and in vitro digestibility were also evaluated, as compared to soy protein isola...