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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

Nanostabilization of thermally processed high amylose hydroxylpropylated starch films  [2011]

Dean, Katherine M.; Petinakis, Eustathios; Goodall, Liz; Miller, Tony; et al.

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High amylose hydroxypropylated starch films have been formed using traditional extrusion technology with a range of plasticisers and nanosilicate additives such as montmorillonite. After thermal processing, these materials are predominantly amorphous, however under controlled humidity over time the evolution of B-type (found in high amylose starches) and Vh type (generally induced via processing) crystallinity was observed. These structural changes have been analysed and correlated to final mechanical properties (modulus, tensile strength and break elongation). A “nanostabilization” effect was also observed over time in starch samples containing montmorillonite. It is proposed that in these systems the montmorillonite disrupts the retrogradation process reducing the rate of embrittlement over time. This is of significant importance for improving the shelf life of thermoplastic starches for industrial applications.
From the journal
Carbohydrate polymers
ISSN : 0144-8617

Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2016
Volume:
86
Issue:
2
Start Page:
652
End Page:
658
Publisher:
Elsevier Ltd
All titles:
"Nanostabilization of thermally processed high amylose hydroxylpropylated starch films"@eng
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Bibliographic information

Language:
English
Type:
Journal Article
In AGRIS since:
2016
Volume:
86
Issue:
2
Start Page:
652
End Page:
658
Publisher:
Elsevier Ltd
All titles:
"Nanostabilization of thermally processed high amylose hydroxylpropylated starch films"@eng