수분주입량과 배럴온도에 따른 카사바 전분 압출성형물의 물리적 특성 = Effects of Feed Moisture and Barrel Temperature on Physical and Pasting Properties of Cassava Starch Extrudate

다국어 초록 (Multilingual Abstract)

Considering the importance of cassava as food crops in humid tropics, the effect of feed moisture (20, 25%) and barrel temperature (110, 130℃) on physical properties (piece density, expansion, mechanical properties, color, water solubility index, water absorption index) and pasting properties of extruded cassava starch was investigated. The feed moisture used during extrusion processing had a significant effect on extrudates SME input, specific length and piece density at (p<0.05) while effect on cross-sectional expansion index, apparent elastic modulus and breaking strength in bending shown significantly at p<0.1. Furthermore, the interaction effect of feed moisture and barrel temperature gave a significantly affected the SME input and piece density (p<0.1), specific length (p<0.05) and on redness (p<0.01). The increase in water injection rate led to increase in piece density, apparent elastic modulus, breaking strength in bending, cold peak viscosity, breakdown and final viscosity and decrease in cross-sectional expansion index and specific length. It was found that the extrusion cooking process did not affect the value of color L, color b, water solubility index and water absorption index. Thus, the results of this study can be useful to some extent in developing extruded cassava starch as human and animal feeds.

참고문헌 (Reference)

1 Magali L, "characteristics of extruded cassava" 66 : 486-493, 2009

2 Carlos WPC, "Use of wet Okara the extrusion of cassava flour" 2005

3 Miller GL, "Use of dinitrosalicylic acid reagent for determination of reducing sugar" 31 : 426-428, 1959

4 Darnako AWE, "Twin-screw extrusion a continuous pre-treatment process for the enzymatic hydrolysis of cassava" 53 : 1792-1799, 1988

5 Burrell MM, "The need for improved quality or quantity an overview" 54 : 541-546, 2003

6 Lawton BT, "The effect on extrusion variables on gelatinization of corn starch" 50 : 168-, 1972

7 Ferdinand JM, "Structure formation of carbon dioxide injection in extrusion cooking" 11 : 209-224, 1990

8 El-Dash AA, "Response surface of methodology in the control of thermoplastic extrusion of starch" 2 : 129-152, 1983

9 Martinez-Serena MD, "Reactivity, functionality and extrusion performance of native and chemically modified whey proteins" Food Extrusions Sci Technol 387-414, 1992

10 Colonna P, "Physically modified starches, In Starch properties and potential" Society of Chemical Industry 79-114, 1987

11 AOAC, "Official Method Analysis of the AOAC, 16th ed" Association of Official Analytical Chemists 1995

12 Mercier C, "Modification of carbohydrate components by extrusion-cooking of cereals products" 52 : 283-297, 1975

13 Colonna O, "Macromolecular modifications of manioc starch components by extrusion cooking with and without lipids" 3 : 87-108, 1986

14 Anderson RA, "Gelatinization of corn grits by roll and extrusion cooking" 14 : 11-12, 1969

15 Maga JA, "Flavor formation and retention during extrusion, In Extrusion cooking" American Association of Cereal Chemist Inc 387-398, 1989

16 Panmanabhan M, "Extrudate expansion during extrusion cooking of foods" 34 : 945-949, 1989

17 Chen J, "Effects of extrusion conditions on sensory properties of corn meal extrudates" 56 : 84-89, 1991

18 Yang SH, "Effects of adlay species and rice flour ratio on the physiochemical properties and texture characteristic of adlay-based extrudates" 84 : 489-494, 2008

19 Chang YK, "Effects of acid concentration and extrusion variable on some physical characteristics and energy requirements of cassava starch" 20 : 129-137, 2003

20 Fontanet I, "Effect of water on the mechanical behaviour of extruded flat bread" 25 : 303-311, 1995

21 Ortriz JAR, "Effect of sugar and water contents on non extruded cassava flour extrudates" 30 : 205-212, 2010

22 Ryu GH, "Effect of selected process on expansion and mechanical properties on wheat flour and cornmeal extrudates" 53 : 147-154, 2001

23 Lee EY, "Effect of processing parameters of physical properties of corn starch extrudates expanded using supercritical CO2 injection" 76 : 63-69, 1999

24 Jorge MH, "Effect of extrusion conditions on quality of cassava bran/cassava starch extrudates" 38 : 511-517, 2003

25 Nyerhohovwo JT, "Cassava and future of starch" 7 : 6-8, 2004

26 Liang M, "Barrel-valve assembly affects twin-screw extrusion cooking of corn meal" 59 : 890-894, 1994

27 Damodaran S, "Amino acids, peptides, and proteins, In Food Chemistry" Marcel Dekker 322-429, 1996

28 Alvarez-Martinez L, "A general model for expansion of extruded products" 3 : 609-615, 1988