Rapeseed proteins

Prediction of the amino acid composition of small peptides contained in a plant protein hydrolysate by LC–MS and CE–MS

“…Furthermore, the complete identification of active peptides requires the determination of the amino acid sequence, not only the amino acid composition. To overcome these drawbacks, we have compared the possible combinations obtained by software analysis with the sequences of the main rapeseed proteins (cruciferin and napin) (Schwenke, 1994). The purpose of that investigation was to keep only the peptides which can be encountered in rapeseed proteins (Palmblad et al, 2004).…”

Emulsifying properties of canola and flaxseed protein isolates produced by isoelectric precipitation and salt extraction

“…Cruciferin differs from other oilseed globulins with its neutral isoelectric point (pI~7.20) (Krause & Schwenke, 2001) and high level of glycosylation (~13% carbohydrate) (Lampart-Szczapa, 2001). Cruciferin may also dissociate into subunits at extreme pH and in the presence of urea (Bérot, Compoint, Larré, Malabat, & Guéguen, 2005;Schwenke, 1994). Napins have a low molecular mass (12.5-14.5 kDa), high pI (10.00-11.00), and are composed of two polypeptide chains of 4.5 kDa and 10 kDa held together by disulfide bonds (Bérot et al, 2005).…”

Soy protein adhesion enhanced by glutaraldehyde crosslink

“…3 Designed for biological roles, soy protein doesn't necessarily possess desirable functional properties. 4 Proteins are made of combinations of 20 different amino acids. Functionality of proteins arises from primary structure, conformation determined by amino acid sequence, and their environment.…”