Analysis of Optimal Mixture Ratio for Extrudate of the Soymilk Residue and Corn Grits by Mixture Design

혼합물 실험 계획법에 의한 두유박과 옥분 압출성형물의 최적 혼합비 분석

  • Published : 2003.08.01

Abstract

Experimental designs were applied to optimize the mixture ratio for the extrudate made by soymilk residue and corn grits. Nine candidate points were examined for their significance on extrudate using the modified distance design. Bending force, expansion ratio, bulk density, water solubility index (WSI), water absorption index (WAI) and color $(L^*,\;a^*,\;b^*)$ were the significant factors improving the extruded cereal production, and these values were applied to the mathematical models. Results showed that bending force, expansion ratio WSI, WAI and color $(L^*,\;b^*)$ increased with increasing the corn grits, whereas bulk density tended to decrease. The statistical study showed that the fitted models were adequate to describe the contour plot and all responses. Optimum mixture ratio allowing to maximize the two responses (expansion ratio and $b^*$) and minimize the response (WAI) were examined with a numerical optimization methods. The numerical optimization method was obtained as 53.18% : 46.19% (corn grits : soymilk residue).

Keywords

soymilk residue;extruded cereal;mixture ratio;optimization

References

  1. Choi, J.B. and Kim, Z.U. Use of soymilk residue to noodle. J. Korean Soc. Agric. Chem. Biotechnol. 31: 65-78 (1990)
  2. Hong, J.S., Kim, M.K., Yoon, S. and Ryu, N.S. Preparation of dietary fiber sources using apple pomace and soymilk residue. J. Korean Soc. Agric. Chem. Biotechnol. 36: 73-79 (1993)
  3. Cornell, J.A. Experiments with Mixtures: Designs, Models, and the Analysis of Mixture data, pp. 1-8. John Wiley & Sons, New York,USA (1990)
  4. Park, K.H. Elucidation of the extrusion puffing process. Ph.D. dissertation, University of Illinois, Urbana, USA (1976)
  5. Anderson, R.A. Water absorption and solubility and amylograph characteristics of roll-cooked grain products. Cereal Chem. 59: 265-269 (1982)
  6. Kokini, J.L., Chang, C.N. and Kai, L.S. The role of rheological properties on extrudate expansion, pp. 630-652. In: Food Extrusion Science and Technology. Kokini, J.L., Ho, C.T. and Karwe, M.V. (eds.). Rutgers, The State University of New Jersey, New Brunswick, NJ, USA (1992)
  7. Alavi, S.H., Gogoi, B.K, Khan, M., Bowman, B.J. and Rizvi, S.S.H. Structural properties of protein-stabilized starch-based supercritical fluid extrudates. Food Res. Int. 32: 107-118 (1999) https://doi.org/10.1016/S0963-9969(99)00063-0
  8. Paton, D. and Spratt, W.A. Component interactions in the extrusion cooking process: Influence of process conditions on the functional viscosity of the wheat flour system. J. Food Sci. 49: 1380-1385 (1984) https://doi.org/10.1111/j.1365-2621.1984.tb14995.x
  9. Kim, Z.U. and Park, W.P. Making of extruded noodles mixed with soymilk residue. J. Korean Soc. Agric. Chem. Biotechnol. 33: 216-222 (1990)
  10. Snee, R.D. Experimental designs for mixture systems with multicomponent constraints. Comm. Stat. Theory Meth. 8: 337-338 (1979) https://doi.org/10.1080/03610927908827764
  11. N$\ae$s, T., Bjerke, F. and Frergestad, E.M. A comparison of design and analysis techniques for mixtures. Food Qual. Prefer. 10: 209-217 (1999) https://doi.org/10.1016/S0950-3293(99)00018-X
  12. Chinnaswamy, R. and Hanna, M.A. Expansion, color and shear strength properties of com starches extrusion cooked with urea and salts. Starch/Starke 40: 186-190 (1988) https://doi.org/10.1002/star.19880400507
  13. Ryu, G.H. and Mulvaney, S.J. Analysis of physical properties and mechanical energy input of cornmeal extrudates fortified with dairy products by carbon dioxide injection. Korean J. Food Sci. Technol. 29: 947-954 (1997)
  14. Ma, C.Y., Liu, W.S., Kwok, K.C. and Kwok, F. Isolation and characterization of proteins from soymilk residue (okara). Food Res. Int. 29: 799-805 (1997)
  15. Kim, S.M. Surimi-alginate gels as affected by setting: a study based on mixture design and regression models. Food Res. Int. 36: 295-302 (2003) https://doi.org/10.1016/S0963-9969(02)00171-0
  16. Pelembe, L.A.M., Erasmus, C. and Taulor, J.R.N. Development of a protein-rich composite sorghum-cowpea instant porridge by extrusion cooking process. Lebensm. Wiss. Technol. 35: 120-127 (2002) https://doi.org/10.1006/fstl.2001.0812
  17. Launay, B. and Lisch, L.M. Twin-screw extrusion cooking of starches: Flow behavior of starch pastes, expansion and mechanical properties of extrudates. J. Food Eng. 2: 259-280 (1983) https://doi.org/10.1016/0260-8774(83)90015-8
  18. Wang, H.L. and Cavins, J.F. Yield and amino acid composition of fractions obtained during tofu production. Cereal Chem. 66: 359-361 (1989)
  19. Matsuo, M. Preparation and components of okara-ontjom, a traditional Indonesian fermented food. Nippon Shokuhin Kagaku Kogaku Kaishi 44: 632-639 (1997) https://doi.org/10.3136/nskkk.44.632
  20. Singh, R.K., Nielsen, S.S. and Chambers, J.V. Selected characteristics of extruded blends of milk protein raffinate or nonfat dry milk with com flour. J. Food Proc. Preser. 15: 285-302 (1991) https://doi.org/10.1111/j.1745-4549.1991.tb00173.x
  21. Han, G.H., Kim, B.Y. and Lee, J.K. Production of extrudates formulated from pacific sand lance by-product and dried biji. Korean J. Food Sci. Technol.34: 186-193 (2002)
  22. Kim, Z.U., Bang, C.S., Choi, J.B. and Lim, C.S. Utilization of soymilk residue for wheat doenjang. J. Korean Soc. Agric. Chem. Biotechnol. 32: 357-361 (1989)
  23. Derringer, G. and Suich, R. Simultaneous optimization of several response variables. J. Quality Technol. 12: 214-219 (1980) https://doi.org/10.1080/00224065.1980.11980968
  24. Saguy, I., Mishkin, M.A. and Karel, M. Optimization methods and available software. Part 1. CRC Crit. Rev. Food Sci. Nutr. 20: 275-299 (1984) https://doi.org/10.1080/10408398409527392
  25. Ilo, S., Liu, Y. and Berghofer, E. Extrusion cooking of rice flour and amaranth blends. Lebensm. Wiss. Technol. 32: 79-88 (1999) https://doi.org/10.1006/fstl.1998.0497
  26. Chavez-Jauregui, R.N., Silva, M.E.M.P. and Areas, J.A.G. Extrusion cooking process for amaranth (Amaranthus caudatus L.). J. Food Sci. 65: 1009-1015 (2000) https://doi.org/10.1111/j.1365-2621.2000.tb09408.x
  27. Ellek$\ae$r, M.R, N$\ae$s, T. and Baardseth, P. Milk proteins affect yield and sensory quality of cooked sausages. J. Food Sci. 61: 660-666 (1996) https://doi.org/10.1111/j.1365-2621.1996.tb13181.x