Development of Optimum Processing Conditions for Soybean Curd

두부제조공정의 최적화

Han, Myeong-Ryun;Kim, Ae-Jeong;Jeong, Kun-Seop;Lee, Su-Jeong;Kim, Myeong-Hwan
한명륜;김애정;정건섭;이수정;김명환

  • Published : 20060000

Abstract

We selected five major factors among soybean curd processing parameters based on pre-experimental data, which were significantly affected on the quality of soybean curd product. The selected five major factors were coagulation temperature, coagulation time, pressing pressure, coagulant concentration and soya milk concentration. The changes of the sensory hedonic scores of soybean curd product on the processing conditions were analyzed by response surface methodology. The 27 experimental points were designed using a central composite method. Affecting factor for the sensory hedonic scores of soybean curd product was arranged according to soya milk concentration, coagulation temperature, coagulant concentration, pressing pressure and coagulation time. Soya milk concentration and coagulation temperature were significant factors at the 5% level. The optimum processing conditions for soybean curd were coagulation temperature(60°C). coagulation time(27.2 min). pressing pressure(45,45 gf/cm2), coagulant concentration( 1.44%) and soya milk concentration(5.0 °Brix). The sensory hedonic score of soybean curd product was 6.2 with above optimum processing conditions.

Keywords

References

  1. Bennink, R.M. 1995. Prevention of chronic diseases by soy foods: current research in the United States. Paper presented at international symposium. Korea Soybean Society. Seoul, Korea
  2. Choi, K.S. and S.H. Kim. 1983 Changes in soluble sugars and soybean curd yield with increased steeping time during soybean curd processing. Korean J. Food & nutrition. 12: 401-406
  3. Choi, Y.O., H.S. Chung, and K.S. Youn. 2000a. Effects on coagulants on the manufacturing of soybean curd containing natural materials. Korean J. Postharvest Sci. Technol. 7: 249-255
  4. Choi, Y.O., H.S. Chung, and K.S. Youn. 2000b. Effects of various concentrations of natural materials on the manufacturing of soybean curd. Korean J. Postharvest Sci. Technol. 7: 256-261
  5. Kim, H.J., B.Y. Kim, and M.Y. Kim. 1995. Rheological studies of the Tofu upon the processing conditions. Korean J. Food Sci. Technol. 27: 324-328
  6. Kim, J.S. 1996. Current research trends on bioactive function of soybean. Korea Soybean Digest. 13: 17-24
  7. Kim, J.Y., J.H. Han, J.K. Kim and K.D. Moon. 2000a. Quality attributes of whole soybean flour Tofu affected by coagulant and their concentration. Korean J. Food Sci. Technol. 32: 402-409
  8. Kim, J.Y., J.H. Kim, J.K. Kim and K.D. Moon. 2000b. Quality attributes of whole soybean flour Tofu Affected by coagulant and their concentration. Korean J. Food Sci. Technol. 32: 402-409
  9. Kim, J.Y., J.H. Kim, J.K. Kim and K.D. Kim. 2001. Quality and sensory evaluation of whole soybean flour Tofu prepared from various processing conditions. J. Korean Soc. Food Sci. Nutr. 30: 455-459
  10. Lee, C.H. and C.K. Rha. 1978. Micro-structure of soybean protein aggregates and relation to the physical and textural properties of the curd. J. Food Sci. 43: 79-84 https://doi.org/10.1111/j.1365-2621.1978.tb09740.x
  11. Lee, J.K., B.J. Park, K.Y. Yoo and Y.O. Ahn. 1995. Dietary factors and stomach cancer A case-control study in Korea. J. Epidemiology. 24: 33-41 https://doi.org/10.1093/ije/24.1.33
  12. SAS. 1993. SAS/INSIGHT User's Guide. Version 6. SAS Institute Inc., Cary, USA
  13. Stone, H. and J.L. Sidel 1985. Sensory Evaluation Practices. Academic Press, London, UK
  14. Suh, D.S., S.H. Kim, J.H. Hong and K.O. Kim. 2001. Application of quantitative descriptive analysis to commercial soybean curd. Korean J. Dietary Culture. 16: 58-64