Antimicrobial and antioxidant properties of -conglycinin and glycinin from soy protein isolate

Abstract

Soybeans (Glycine max) are an abundant source of proteins that have been recognized for their high nutritional value and bioactive properties. Soybeans are legumes, and possess high protein content (approximately 40%) as compared to most other legumes (Aguirre et al., 2008; Yimit et al., 2012). The health benefits of soybeans are attributed to the presence of bioactive compounds, and in particular proteins. Glycinin and -conglycinin are globulins that are the major components of soy protein isolates (SPIs), accounting for approximately 85% of soybean protein content (Scilingo and Anon, 2004; Vernaza et al., 2012). Glycinin is a polypeptide that is composed of 2 acidic and basic subunits that are connected with disulfide bonds. ISSN: 2319-7706 Volume 3 Number 8 (2014) pp. 144-157 http://www.ijcmas.com