Soy proteins are interesting biomolecule source for different  applications. This stems from the fact that they are readily available,  possess a variety of functional groups, and are able to interact with  both hydrophobic and hydrophilic substrates. Soy proteins are amphoteric  and biodegradable polymers that are suitable to form gels, films, and  emulsions. Despite such variety of properties, soy protein industrial  applications have been limited by their high molecular weight and low  solubility. To overcome these limitations, different processes have been  developed. In this work we discuss the results of acid hydrolysis of  soy proteins under high concentration conditions. Techniques typical in  protein analysis (SDS-PAGE and others) as well as colloid  characterization (charge demand and electrophoretic mobility, etc.) were  used to monitor the chemical and conformation changes that occur upon  hydrolysis. In addition, the effect of chemical reaction conditions and  denaturation processes were evaluated in an attempt to clarify and  describe their behavior and thus make their use relevant for industrial  applications. Our results from surface modification, adhesion studies,  and as well as the ability to produce gels will illustrate potential  uses of the obtained soy protein fractions.

Colloidal characterization of soy peptides

243rd National Meeting (2012)

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