Functional Properties of Extrudates Prepared with Blends of Wheat Flour/Pinto Bean Meal with Added Wheat Bran

Abstract

Blends made of wheat flour and bean meal at various levels of moisture and bran content, were subjected to extrusion cooking by varying temperature and screw speed. Extrudates were analysed for expansion index, bulk density, apparent viscosity, water absorption index and water solubility index using a second-order rotatable central composite design. Excepting water absorption index, functional properties were significantly affected ( p<0.05) by levels of moisture, bran or extrusion conditions. Expansion index decreased with increasing levels of moisture in the blends; for bran the effect was the inverse. Response surface solution for apparent viscosity was maximum at 24% levels of moisture, 209r.p.m., 180°C and 10% bran. For water absorption index the response surface solution was a saddle point, with a minimum at 29% levels of moisture, 232r.p.m., 177°C and 25% bran. The higher apparent viscosity and lower absorption index reflected minor damage to starch and proteins, which was attributed to a protective role of the added fibre.

Keywords

Extrusion Pinto bean wheat flour wheat bran functional properties

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References

Anderson R.A. , Conway H.F. , Pfeifer V.F. and Griffin Jr, E.L. (1969). Gelatinization of corn grits by roll-and-extrusion cooking. Cereal Science Today 14: 4—7, 11—12.

Aoac (1980). Official Methods of Analysis of the Association of Official Analytical Chemists. Gaithersburg, Maryland: AOAC.

Artz W.E. , Warren C.C. and Villota R. (1990). Twin screw extrusion modification of corn fiber and corn starch extruded blend. Journal of Food Science 55: 746—750, 754.

Badrie N. and Mellowes W.A. (1991). Effect of extrusion variables on cassava extrudate . Journal of Food Science 56: 1334—1337.

Berrios J.J. , Wood D.F. , Whitehand L. and Pan J. (2004). Sodium bicarbonate and the microstructure, expansion and color of extruded black beans. Journal of Food Processing and Preservation 28: 321—335.

Chinnaswamy R. and Hanna M.A. (1990). Macromolecular and functional properties of native and extrusion-cooked corn starch. Cereal Chemistry 67: 490—499.

Chinnaswamy R. (1993). Basis of cereal starch expansion. Carbohydrate Polymers 21: 157—167.

Damodaran S. (1996). Amino acids, peptides, and proteins. In: O.R. Fennema (ed.) Food Chemistry New York: Marcel Dekker, Inc. pp. 321—429.

Della Valle G. , Vergnes B. , Colona P. and Patria A. (1997). Relations between rheological properties of molten starches and their expansion behaviour in extrusion. Journal of Food Engineering 31: 277—296.

10.

Gomez M.H. and Aguilera J.M. (1983). A physicochemical model for extrusion of corn starch. Journal of Food Science 49: 40—43, 63.

11.

González-Soto R.A. , Sánchez-Hernández L. , Solorza-Feria J. , NúñezSantiago C. , Flores-Huicochea E. and Bello-Pérez L.A. (2006). Resistant Starch production from non-conventional starch sources by extrusion. Food Science Technology International 12:5—11.

12.

Grenus K.M. , Hsieh F. and Huff H.E. (1993). Extrusion and extrudate properties of rice flour. Journal of Food Engineering 18: 229—245.

13.

Griffith L.D. , Castell-Pérez M.E. and Griffith M.E. (1998). Effects of blends and processing method on the nutritional quality of weaning foods made from select cereals and legumes . Cereal Chemistry 75: 105—112.

14.

Gujska E. and Khan K. (1991). Functional properties of extrudates from high starch fractions of Navy and Pinto beans and corn meal blended with legume high protein fractions. Journal of Food Science 56: 431—435.

15.

Haard N.F. and Chism G.W. (1996). Characteristics of edible plant tissues. In: O.R. Fennema (ed), Food Chemistry . New York: Marcel Dekker, Inc. pp. 943—1001.

16.

Hashimoto J.M. and Grossman M.V.E. (2003). Effects of extrusion conditions on quality of cassava bran/cassava starch extrudates. International Journal of Food Science and Technology 38: 511—517.

17.

Hsieh F. , Mulvaney S.J. , Huff H. , Lue S. and Brent J. (1988). Effect of dietary fiber on extrusion puffing. American Society of Agricultural Engineers (microfiche collection). Fiche 88—6519.

18.

Jian T. and Xiao-Lin D. (1994). Relationship between functional properties and macromolecular modifications of extruded corn starch. Cereal Chemistry 71: 364—368.

19.

Jin Z. , Hsieh F. and Huff H.E. (1995). Effects of soy fiber, salt, sugar and screw speed on physical properties and microstructure of corn meal extrudate. Journal of Cereal Science. 22: 185—194.

20.

Jin Z. , Hsieh F. and Huff H.E. (1994). Extrusion cooking of corn meal with soy fiber, salt, and sugar. Cereal Chemistry 71: 227—234.

21.

Lue S. , Hsieh F. and Huff H.E. (1991). Extrusion cooking of corn meal and sugar beet fiber: effects on expansion properties, starch gelatinization and dietary fiber content. Cereal Chemistry 68: 227—234.

22.

Maga J.A. and Lorenz K. (1978). Sensory and functional properties of extruded corn-soy blends. Lebensmittel-Wissenschaft und-Technologie 11: 185—187.

23.

Martínez-Flores H.E. , Cruz M.C. , Larios S.A. , Jiménez G.E. , Figueroa J.D.C. and Gómez-Aldapa C.A. (2005). Sensorial and biological evaluation of an extruded product made from corn supplemented with soybean and safflower pastes. International Journal of Food Science and Technology 40: 517—524.

24.

Montgomery D.C. (1991). Design and Analysis of Experiments. New York: John Wiley & Sons, Inc.

25.

Moore D. , Sanei A. , van Hecke E. and Bouvier J.M. (1990). Effect of ingredients on physical/structural properties of extrudates. Journal of Food Science. 55: 1383—1992.

26.

Moraru C.I. and Kokini J.L. (2003). Nucleation and expansion during extrusion and microwave heating of cereal foods. Comprehensive Reviews in Food Science and Food Safety 2: 120—138.

27.

Moreyra R. and Peleg M. (1981). Effect of equilibrium water activity on the bulk properties of selected food powders. Journal of Food Science 46: 1918—1922.

28.

Ning G.L. , Villota R. and Artz W.E. (1991). Modification of corn fiber through chemical treatments in combination with twin-screw extrusion. Cereal Chemistry 68: 632—636.

29.

Onwulata C.I. , Konstance R.P. , Smith P.W. and Holsinger V.H. (2001). Co-extrusion of dietary fiber and milk proteins in expanded corn products. Lebensmittel-Wissenschaft und-Technologie 34: 424—429.

30.

Sacchetti G. , Pittiam P. and Pinnavaia G.G. (2005). The effect of extrusion temperature and drying-tempering on both the kinetics of hydration and the textural changes in extruded ready-to-eat breakfast cereals during soaking in semi-skimmed milk. International Journal of Food Science and Technology 40: 655—663.

31.

Sefa-Dedeh S. and Saalia F.K. (1997). Extrusion of maize-cowpea blends in a modified oil expeller. Journal of the Science of Food and Agriculture 73: 160—168.

32.

Shankar T.J. and Bandyopadhyay S. (2005). Process variables during single-screw extrusion of fish and rice-flour blends. Journal of Food Processing and Preservation 29: 151—164.

33.

van den Einde R.M. , van der Goot A.J. and Boom, R.M. (2003). Understanding molecular weight reduction of starch during heating-shearing processes. Journal of Food Science 68: 2396—2404.