The Study of Functional and Rheological Properties of Teff [Eragrostis Teff (Zucc.) Trotter] Grain Flour Varieties
Issue:
Volume 4, Issue 1, June 2020
Pages:
1-8
Received:
21 January 2020
Accepted:
25 February 2020
Published:
6 March 2020
Abstract: This study was conducted to generate information on some functional and rheological properties of teff [Eragrostis teff (Zucc.) Trotter] grain Flour varieties. Six teff varieties namely Quncho (DZ-Cr-387), Felagot (DZ-Cr-442), Tesfa (DZ-Cr-457), Kora (DZ-Cr-438), Dukem (DZ-Cr-425) and Dagme (DZ-Cr-43Bvarieties) were considered and their selection was based on their recent year coverage area and the expected future expansion. Each variety was studied. The highest value of functional properties of teff flours which included water and oil absorption capacity, swelling power, dispersibility and water solubility index of the teff flour were 0.99 g/g, 1.42 ml/g, 11.99%, 74% and 19.61% for DZ-Cr-387, DZ-Cr-438, DZ-Cr-438, DZ-Cr-438 & DZ-Cr-457 andDZ-Cr-438 varieties respectively. The pasting properties of the teff flour such as pasting temperature, peak time, peak viscosity, final viscosity, break down viscosity, trough and set back viscosity values had ranged from 76 to 80.33°C, 5.13 to 6.17 min, 880 to 1650cP, 1511 to 1721cP, 340.33 to 800cP, 540 to 880 and 370.33 to 971 cP. The farinograph values had ranged from 47.37 to 50.85%, 4.67 to 5.99 min, 3.62 to 4.24 min, 58.18 to 76.99 FU and 70.67 to 82.56 FU for water absorption, dough development time, dough stability time, mixing tolerance index and farinograph quality number respectively. There were significant (P<0.05) differences among the varieties except dough stability time.
Abstract: This study was conducted to generate information on some functional and rheological properties of teff [Eragrostis teff (Zucc.) Trotter] grain Flour varieties. Six teff varieties namely Quncho (DZ-Cr-387), Felagot (DZ-Cr-442), Tesfa (DZ-Cr-457), Kora (DZ-Cr-438), Dukem (DZ-Cr-425) and Dagme (DZ-Cr-43Bvarieties) were considered and their selection w...
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The Study of Some Engineering Properties of Teff [Eragrostis teff (ZUCC.) Trotter] Grain Varieties
Gashaw Abebaw Tsegaye,
Solomon Abera
Issue:
Volume 4, Issue 1, June 2020
Pages:
9-12
Received:
15 January 2020
Accepted:
25 February 2020
Published:
17 March 2020
Abstract: This study was conducted to generate information on some engineering properties of teff [Eragrostis teff (Zucc.) Trotter] grain varieties. Teff is a unique durable crop grown over a wide range of environmental conditions in Ethiopia and has been utilized as food and supplements for majority of the human diet in Ethiopia Teff is beneficial for those who are lactose intolerant since it is gluten-free. Therefore generation of some information concerning of engineering properties of teff grain and its flour; to investigate and provide concise information and data on selected physical and thermal properties of teff grain and its flour is considered to be important. Six teff varieties namely Quncho (DZ-Cr-387), Felagot (DZ-Cr-442), Tesfa (DZ-Cr-457), Kora (DZ-Cr-438), Dukem (DZ-Cr-425) and Dagme (DZ-Cr-43B varieties) were considered and their selection was based on their recent year coverage area and the expected future expansion. Each variety was studied for physical properties. The highest values of the physical properties of the grains which included thousand kernel weights, hectoliter weight, angle of repose, bulk density, moisture content and crude fiber content of grains were 0.29 g, 95.67 kg/hl, 23.06°, 1.91 g/ml, 10.66%, and 2.92% for varieties DZ-Cr-457, DZ-Cr-43B, DZ-Cr-438, DZ-Cr-43B, DZ-Cr-438, and DZ-Cr-425, respectively. There were significant (P<0.05) differences among the varieties.
Abstract: This study was conducted to generate information on some engineering properties of teff [Eragrostis teff (Zucc.) Trotter] grain varieties. Teff is a unique durable crop grown over a wide range of environmental conditions in Ethiopia and has been utilized as food and supplements for majority of the human diet in Ethiopia Teff is beneficial for those...
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