Functional Properties of Protein Isolates Produced by Aqueous Extraction of De-hulled Yellow Mustard

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• 作者：Solmaz Tabtabaei ; Benjamin Hijar…
• 关键词：Aqueous extraction ; Yellow mustard ; Diafiltration ; Ultrafiltration ; Protein isolates ; Oxidative stability ; Functional properties
• 刊名：Journal of the American Oil Chemists' Society
• 出版年：2017
• 出版时间：January 2017
• 年：2017
• 卷：94
• 期：1
• 页码：149-160
• 全文大小：
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Industrial Chemistry/Chemical Engineering; Biomaterials; Agriculture; Food Science; Biotechnology;
• 出版者：Springer Berlin Heidelberg
• ISSN：1558-9331
• 卷排序：94

文摘

Two types of protein isolates were prepared from de-hulled yellow mustard flour by aqueous extraction, membrane processing and isoelectric precipitation. The precipitated and soluble protein isolates had 96.0 and 83.5% protein content on a moisture and oil free basis, respectively. Their functional properties were evaluated and compared with commercial soybean and other Brassica protein isolates. The soluble protein isolate exhibited high values for all properties. The precipitated protein isolate showed excellent oil absorption and emulsifying properties but poor solubility, water absorption and foaming properties due to its high lipid content (~25%). Storage temperature had limited effect on lipid oxidation, and hence the stability of the precipitated protein isolate at 25–45 °C. Flavor of wieners and bologna prepared with 2% of this isolate as binder was comparable to those prepared with soy protein isolate.