Quality Characteristics of Omija Jelly Prepared with Various Starches

전분의 종류에 따른 오미자 젤리의 품질 특성연구

  • 류현주 (가톨릭대학교 식품영양학과) ;
  • 오명숙 (가톨릭대학교 식품영양학과)
  • Published : 2002.10.01

Abstract

This study was carried out to determine the effects of various starches (mungbean starch, cowpea starch and corn starch) on the quality characteristics of Omija jelly made of Omija extract. The viscosity of starch suspended in Omija extract and distilled water was measured by using a RVA(Rapid Visco Analyzer), and, color value, syneresis, texture(rupture test and TPA test) and sensory properties of Omija jelly and pure starch jelly were measured. Gelatinization temperature of each starch suspended in Omija extract was higher than that suspended in distilled water, whereas final viscosity of Omija jelly was decreased. Omija extract appeared to retard the gelatinization of starch and recrystallization of gelatinized starch. The viscosity of com starch was lowest among the three types of starch, suggesting thai higher concentration is needed in the use of com starch. The lightness(L) of corn starch gel was the highest among the gels. The syneresis of Omija jelly was lower than that of starch jelly, therefore, Omija extract seemed to be helpful on the stability of starch gel. Rupture properties of Omija jelly was lower than that of starch jelly, whereas the adhesiveness of omija jelly was greater. Omija jelly made of corn starch was less cohesive and more sticky than other gels, and its acceptability was very low. Sensory characteristics of the gel were relatively well correlated with the mechanical characteristics. Overall acceptability of Omija jelly was high in the concentration of 7, 8% of mungbean starch and 8, 9% of cowpea starch. Thus, the optimum concentration of starch for making Omija jelly using mungbean starch was 7, 8% and that using corn starch was 8, 9%.

녹두전분, 동부전분, 옥수수전분 등 3종류의 전분을 증류수 또는 오미자추출액에 분산시켜 겔을 제조하여(각각 전분젤리, 오미자젤리라 칭함) RVA에 의한 점도특성, 겔의 색도, 이수율, 파단특성 및 TPA특성의 텍스쳐특성을 조사하고, 관능검사를 실시하였다. 점도특성은 오미자추출액분산 전분현탁액의 호화온도가 세 전분 모두 상승하여 오미자추출액이 호화를 지연시키는 것으로 나타났으나 최종점도가 저하하여 전분의 결정화가 억제되는 것으로 나타났다. 또한 동일 농도에서 비교하면 세전분 중에서 옥수수전분의 점도치가 가장 낮아서 녹두, 동부전분보다 더 높은 농도로 사용해야함을 나타내었다. 색도는 옥수수전분겔의 L값이 가장 높아 백색도가 가장 높은 것을 나타내었으며, 이수율은 오미자젤리의 이수율이 전분젤리보다 저하하여 오미자추출액이 전분겔의 안정성을 높여주는 것을 나타내었다. 텍스쳐 특성은 오미자 젤리는 파단응력, 파단변형 등의 파단특성이 전분젤리보다 감소하여 오미자추출액에 의해 겔이 약화되고 탄력성이 적은 겔로 되며, 부착성이 커져서 끈적임이 커지는 것을 나타내었다. 옥수수전분의 오미자젤리는 응집성이 낮으면서 부착성이 커서 풀과 같은 텍스쳐를 나타내었다. 관능적 특성은 기계적 특성과 대체로 일치하는 경향이었으며, 전반적 바람직성은 녹두전분 7, 8%, 동부전분 8, 9%에서 높았으며 옥수수전분은 모든 농도에서 전반적 바람직성이 떨어졌다. 이상의 결과로 오미자젤리 제조시 녹두전분 사용시는 7, 8%, 동부전분 사용시는 8, 9%의 농도가 적당하며, 옥수수전분 사용시는 텍스처를 개선시킬 수 있는 방도가 필요하다고 생각되었다.

Keywords

References

  1. Nakahama, N : Rheological properties of mixed gels. Abstract of 10th Anniversary Symposium, Korean Society of Food Science
  2. 윤서석 : 한국음식 역사와 조리. p.372, 수학사, 서울, 1982
  3. Roh, SN and Oh, HS : Effect of omija extracts on the growth of liver cancer cell line SNU-398. Korean J. Nutrition, 35(2):201, 2002
  4. Kim, JE and Chun, HJ : A study on making jelly with omija extract. Korean J. Soc. Food Sci., 6(3):17, 1990
  5. Chun, HJ : Influence of carrageenan addition on the rheological properties of omija extract jelly. Korean J. Soc. Food Sci., 11(1):33, 1995
  6. Sim, YJ, Paik, JE, Joo, NM and Chun HJ : Influence of carrageenan and pectin addition on the rheological properties of omija extract jelly. Korean J. Soc. Food Sci., 11(4):362, 1995
  7. Lee, CJ and Cho, HJ : The effect of different level of mungbean starch on the quality of omija-pyun. Korean J. Dietary Culture, 11(1):53, 1996
  8. Song, ES, Chung, HK and Kang, MH : Effects of various gelling agents on textural properties of omija pyon. Korean J. Dietary Culture, 8(3):289, 1993
  9. Yamamoto, K : Studies on rheological properties of potato starch in the practical application. J. Jap. Soc. Starch Sci., 28(3):206, 1981 https://doi.org/10.5458/jag1972.28.206
  10. Nagasaka, K and Takeya, S : Analysis of syneresis rate of agar gel. Nippon Shokuhin Kogaku Kaishi, 43(11):1176, 1996 https://doi.org/10.3136/nskkk.43.1176
  11. Stone, H and Sidel, JL : Sensory Evaluation Practices. Academic Press, San Diego, California, p.140, 1997
  12. 송혜향, 박용규 : SAS를 이용한 통계학 연습. p.169, p.225, 경문사, 서울, 1993
  13. Kim, AK, Kim, SK and Lee, AR : Comparison of chemical composition and gelatinization property of mungbean flour and starch. Korean J. Soc. Food Sci., 11(5):472, 1995
  14. Park, OJ and Kim, KO : Effects of added corn starches and hydrocolloids on the characteristics of mungbean starch and the mook(starch gel). Korean J. Food Sci. Technol., 20(4):618, 1988
  15. Fukai, Y, Matsuzawa, T and Ishitani, G : Physicochemical studies on Thai and Philippine rice. J. Cookery Sci. Jap., 30(1):17, 1997
  16. Maruyama, E, Sakamoto, K and Okai, K : Cooking and eating qualities of white rice. J. Cookery Sci. Jap., 28(4):224, 1995
  17. Ryu, JY and Lee, HG : Texture characteristics of angdo pyun as affected by ingredients. Korean J. Soc. Food Sci., 2(1):45, 1986
  18. Mao, R, Tang, J and Swanson, B : Effect of pH buffers on mechanical properties of gellan gels. J. Texture Studies, 30:151, 1999 https://doi.org/10.1111/j.1745-4603.1999.tb00208.x
  19. Watanabe, Y : Firmness and mechanical properties of food. Nippon Shokuhin Kogaku Kaishi, 45(5):287, 1998 https://doi.org/10.3136/nskkk.45.287
  20. Charley, H and Weaver, C : Foods- A Scientific Approach. Prentice Hall, Columbus, Ohio, p.155, 1998
  21. Yoshimura, M, Kumeno, K, Akabane, H and Nakahama, N : Physical properties and palatabilities of pumpkin jellies. J. Home Economics Jap., 45(5):385, 1994
  22. Nishinari, K : Food gel. J. Home Economics Jap., 47(12):1231, 1996