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The National Agricultural Library is one of four national libraries of the United States, with locations in Beltsville, Maryland and Washington, D.C. It houses one of the world's largest and most accessible agricultural information collections and serves as the nexus for a national network of state land-grant and U.S. Department of Agriculture field libraries. In fiscal year 2011 (Oct 2010 through Sept 2011) NAL delivered more than 100 million direct customer service transactions.

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Journal Article

Journal Article

Extraction, Composition and Functional Properties of Pennycress (Thlaspi arvense L.) Press Cake Protein  [2015]

Hojilla-Evangelista, Mila P.; Selling, Gordon W.; Berhow, Mark A.; Evangelista, Roque L.;

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This study compared two methods for extracting the protein in pennycress (Thlaspi arvense L.) press cake and determined the composition and functional properties of the protein products. Proteins in pennycress press cake were extracted by using the conventional alkali-solubilization–acid-precipitation (AP) method or saline-based (SE) procedure (0.1 M NaCl at 50 °C). The extraction method has a major influence on the purity and functional properties of press cake protein products. AP had a lower protein yield (23 %) but much higher purity (90 % crude protein) compared with SE (45 % yield, 67 % crude protein). AP protein isolate had high foam capacity (120 ml), high foam stability (96 % foam volume retention) and high emulsion stability (24–35 min), and it was resistant to heat denaturation (3 % loss of solubility at pH 2 and pH 10). On the other hand, SE protein concentrate showed remarkably high solubility (>76 %) between pH 2 and 10 and exceptional emulsifying activity (226–412 m²/g protein), but was more susceptible to heat denaturation at pH 7 and pH 10 (65–78 % loss of solubility). These results strongly demonstrate that higher purity pennycress press cake protein can be produced by either saline extraction or acid precipitation and have functional properties that are desirable for non-food uses.
From the journal
The journal of the American Oil Chemists' Society
ISSN : 0003-021X

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2015
Volume:
92
Issue:
6
Start Page:
905
End Page:
914
Publisher:
Springer-Verlag
All titles:
"Extraction, Composition and Functional Properties of Pennycress (Thlaspi arvense L.) Press Cake Protein"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2015
Volume:
92
Issue:
6
Start Page:
905
End Page:
914
Publisher:
Springer-Verlag
All titles:
"Extraction, Composition and Functional Properties of Pennycress (Thlaspi arvense L.) Press Cake Protein"@eng