Comparison of Characteristics of Nuroong-gi made from Japonica Rice Cultivars

벼 품종 간 누룽지의 특성 비교 연구

  • Yoo, Jae-Soo (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Baek, Man-Kee (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Baek, So-Hyeon (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Park, Hyun-Su (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Cho, Young-Chan (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Kim, Bo-Kyeong (Department of Rice and Winter Cereal Crop, NICS, RDA) ;
  • Ha, Ki-Young (Department of Rice and Winter Cereal Crop, NICS, RDA)
  • 유재수 (국립식량과학원 벼맥류부) ;
  • 백만기 (국립식량과학원 벼맥류부) ;
  • 백소현 (국립식량과학원 벼맥류부) ;
  • 박현수 (국립식량과학원 벼맥류부) ;
  • 조영찬 (국립식량과학원 벼맥류부) ;
  • 김보경 (국립식량과학원 벼맥류부) ;
  • 하기용 (국립식량과학원 벼맥류부)
  • Published : 2012.11.30

Abstract

This study was carried out to compare the varietal difference in physicochemical properties, texture and sensory characteristics of nuroong-gi prepared japonica rice cultivars. Moisture content of the cultivars was 12.6-14.4%, crude protein content was 5.7-7.9% and crude lipid content was 0.6-3.4%, ash content was 0.3-0.5%. Amylose content is varied from 14.3% to 17.3% and Daeribbyeo 1 scored the highest, Chinnong the lowest. The water binding capacity of Boranchan scored the highest, Shindongjin showed hard characteristics because it scored the highest in hardness whereas Boramchan showed soft characteristics because it scored the lowest in hardness. Lightness of Hunter color values indicates that Chinnong was evaluated as the brightest, reducing sugar content is arranged from 1.8 to 2.11 mg/mL which doesn't show correlation with color. In regard to a result of sensory evaluation, Chinnong scored the highest in color assessment, flavor scored higher in turn of Chinnong, Deuraechan, Boramchan, Boramchan scored higher in taste, hardness, chewiness evaluation and overall acceptability.

자포니카 품종을 이용하여 제조된 누룽지의 품종 간 차이를 비교하기 위하여 이화학적인 특성, 조직감 및 관능 특성에 대해 조사하였다. 품종들의 수분함량은 12.6-14.4%, 단백질 함량은 5.7-7.9%, 지질 함량은 0.6-3.4%, 회분 함량은 0.3-0.5% 범위이었다. 아밀로스 함량은 14.3-17.3% 범위로 대립벼가 가장 높고 친농이 가장 낮게 평가되었다. 물결합력은 품종 중 보람찬이 가장 높았으며, 경도는 신동진이 가장 높아 단단하였고 보람찬이 낮아 부드러운 특성을 나타냈다. 색도는 친농이 가장 밝게 평가되었고, 환원당 함량은 1.8-2.11 mg/mL 범위로 색도와의 상관관계는 알 수 없었다. 관능검사 결과 색깔에 대한 평가는 친농이 가장 높았고, 냄새는 친농>드래찬>보람찬 순으로 우수하였으며, 맛, 경도, 씹힘성과 전반적인 기호도는 보람찬이 우수하였다.

Keywords

References

  1. AACC. 2000. Approved method of the AACC 10th ed. American Association of Cereal Chemists. St Paul, MN. USA.
  2. Cha BS. 1999. Studies on processing conditions for nuroong-gi powder by liquefaction and gellatinization of rice powder. Korean J. Soc. Food Sci. 15: 469-474.
  3. Choi HC. 2001. Physicochemical and varietal improvement related to palatability of cooked rice or suitability to food processing in rice. Symposium of the East Asian Society of Dietary Life. pp. 55-80.
  4. Choi HC. 2002. Current status and perspectives in varietal improvement of rice cultivars for high-quality and value added products. Korean J. Crop Sci. 47: 15-32.
  5. Fujimaki, M, Tajima M, Kato H. 1972. Volatile basic compounds identified from a heated D-glucose/L-alanine mixture. Agric. Biol. Chem. 36: 663-668. https://doi.org/10.1271/bbb1961.36.663
  6. Gomez KA. 1979. Effect of environment on protein and amylose content of rice and chemical aspects of rice grain quality. IRRI. pp. 59-68.
  7. Hamaker BR, Griffin VK. 1993. Effect of disulfide bond-containing protein on rice starch gelatinization and pasting. Cereal Chem. 70: 377-380.
  8. Hayakawa S, Suzuki H, Suzuki Y. 1981. Radial distribution of amino acids in the milled rice kernal. J. Agric. Food Chem. 35: 607-610.
  9. Juliano BO. 1971. A simplied assay for milled-rice amylose. Cereal Chemists, St. Paul, MN, USA.
  10. Kim EM. 2010. The properties of rice flours prepared by dry and wet milling method. Korean J. Food Cookery Sci. 26: 727-736.
  11. Kim HY, Lee BY, You HS, Choi JK, Ham SS. 1999. Properties of rice flour prepared with roll mill and pin mill after tempering. Korean J Postharvest Sci Technol. 6: 313-318.
  12. Kim RY, Kim CS, Kim HI. 2009. Physicochemical properties of non-waxy rice flour affected by grinding methods and steeping times. J. Korean Soc. Food Sci. Nutr. 38: 1076-1083. https://doi.org/10.3746/jkfn.2009.38.8.1076
  13. Koehler PE, Mason ME, Newell JA. 1969. Formation of pyrazine compounds in sugar-amino acids model systems. J. Agric. Food Chem. 17: 393-399. https://doi.org/10.1021/jf60162a006
  14. Kum JS, Han O. 1999. Change in physicochemical properties of kochujang and doenjang prepared with extrudated wheat flour during fermentation. J. Korean Soc. Food Sci. Nutr. 26: 601-605.
  15. Kum JS. 2001. Globalism and comerciallization Korean traditional rice products. Food Ind. Nutr. 6: 11-22.
  16. Kum JS. 2008. Blooming of rice processing industry. Food Ind. Nutr. 13: 9-14.
  17. Lee GB, Yang JB, Ko MS. 2006. Food Analysis. Yuhansa, Seool, Korea, pp. 175-176.
  18. Lee HS, Kwon KH, Kim BS, Kim JH. 2009. Quality characteristics of instant nuroong-gi to which dioscorea japonica powder was added. Korean J. Food Preserv. 16: 680-685.
  19. Medcalf F, Gilles KA. 1965. Wheat starches. Comparison of physicochemical properties. Cereal Chem. 42: 558-568.
  20. Noguchi A, Sato O, Haque Z, Saio K. 1981. Preparation of protein rich flour from rice by air classification and electrostatic separation. J. Japanese Society Food Sci. Technol. 28: 405-411. https://doi.org/10.3136/nskkk1962.28.8_405
  21. Park YH, Oh YJ. 1997. The physicochemical characteristics of instant nuroong-gi. J. Korean Soc. Food Nutr. 26: 632-638.
  22. Park HM, Choi MS, Chun AE, Lee JH, Kim MK, Kim YG, Shin DB, Lee JH, Kim YH. 2010. Variation amylose content using dsRNAi vector by targeting 3'-UTR region of GBSSI gene in rice. Kor. J. Breed. Sci. 42: 515-524.
  23. Shin SM. 2008. A study on the development of a Korean traditional food data integration system. Korean J. Food Nutr. 21: 545-552.
  24. Son JR, Kim JH, Lee JI, Yoon YH, Kim JK. 2002. Trend and further research of rice quality evaluation. Korean J. Crop Sci. 47: 33-54.
  25. Suh YK, Park YH, Oh YJ. 1996. Cooking conditions for the production of instant nuroong-gi. J. Korean Soc. Food Nutr. 25: 58-62.