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Tawakalit Asiyanbi-Hammed Defends Ph.D. Dissertation

Tawakalit Asiyanbi-Hammed defended her Cereal Science Ph.D. dissertation, Characteristics of Yam Composite Flour: Properties and Function of Bread and Tortilla Making, November 18, 2016 at North Dakota State University.
Tawakalit Asiyanbi-Hammed Defends Ph.D. Dissertation

Tawakalit Asiyanbi-Hammed (right) with adviser Dr. Senay Simsek

June 20, 2017

Tawakalit Asiyanbi-Hammed Ph.D. Dissertation Video

Tawakalit Asiyanbi-Hammed successfully defended her Cereal Science Ph.D. dissertation, Characteristics of Yam Composite Flour: Properties and Function of Bread and Tortilla Making, November 18, 2016 at North Dakota State University. She investigated unfermented-white yam flour (UYF) and fermented-brown yam flour (FYF) for their chemical composition, physicochemical characteristics, and pasting properties and compared the yam flours to refined wheat flour.

Asiyanbi-Hammed’s research revealed that the end-product quality of bread loaves and tortilla were significantly affected. In bread, a fermented bakery product incorporation of up to 10% FYF flour appears to produce dough with good viscoelastic properties and bread with quality traits similar to refined wheat bread. For tortilla, an unfermented product of 20% UYF inclusion produces tortillas with good extensibility, acceptable thickness, and color that will appeal to consumers. Her findings suggest that further research substituting yam flour samples for refined wheat flour at different levels could result in quality bakery products.

Asiyanbi-Hammed came to NDSU from Nigeria to join the Cereal Science program, a degree track not offered in her home country. Of her time here, she says, “The Department of Plant Sciences empowers graduating students with research skills needed to overcome future challenges.” Looking ahead, her goals are to contribute, as an academic and researcher, to the body of knowledge in food safety and cereal science research moving toward world food security.

Asiyanbi-Hammed’s Ph.D. adviser is Dr. Senay Simsek. Her graduate committee consists of Dr. Frank Manthey, Dr. Jae-Bom Ohm and Dr. Achintya Bezbaruah.

Source: Tawakalit Asiyanbi-Hammed
Author: Shannon Ueker, 701-231-7971, shannon.ueker@ndsu.edu
Editor: Karen Hertsgaard, 701-231-5384,

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