Application of Green Tea Powder for Sikhe Preparation

가루녹차를 첨가한 식혜 제조

  • Park Shin-In (Department of Food and Nutrition, Kyungwon University)
  • Published : 2006.06.01

Abstract

The effects of adding green tea powder(GTP) on the quality and storage characteristics of sikhe, Korean traditional sweet rice drink, were studied, The values of sweetness and pH of the sikhe with GTP were $18.40{\sim}18.50%\;and\;5.81{\sim}5.85$, respectively. The L and a values were decreased, but the b value was highly increased when the amounts of GTP were increased. Sensory evaluation showed that color and flavor of sikhe made of GTP were the highest among the treatments. However, sweetness of sikhe with GTP was lowered as the addition of GTP was increased. Sensory attributes such as taste, tenderness, aftertaste and overall acceptability were significantly higher in sikhe perpared with 2% GTP than those of control group(p<0.05). During the storage, pH of the sikhe with GTP was not significantly changed at the nineteenth day of storage, but pH of control group was markedly decreased. The L, a and b values showed no significant changes during storage.

가루녹차 첨가 비율 0%, 1%, 2%, 3%)을 달리하여 식혜를 제조하여 식혜의 이화학적 성질, 관능평가 및 저장성 등을 실험하였다. 가루녹차 식혜의 당도는 $18.40{\sim}18.50%$로 가루녹차 무첨가 식혜와 큰 차이가 없었으나, pH는 $5.81{\sim}5.85$로서 무첨가구의 pH 보다 낮았다. 색도는 가루녹차 첨가량이 증가함에 따라 L값과 a값은 감소하였으나 b값은 크게 증가하였다. 관능검사 결과 가루녹차 첨가량이 높아질수록 색깔과 향미는 강하게 평가되었으나 단맛은 가장 약하게 나타났다. 그리고 가루녹차 2% 첨가한 식혜가 맛, 밥알의 조직감, 후미, 전체적인 기호도에 있어서 유의적으로 가장 높은 점수를 얻었다. 가루녹차 첨가에 의해 식혜의 pH는 저장 19일째에도 변화가 거의 일어나지 않았으나 가루녹차 무첨가 식혜의 pH는 급격히 하락하였다. 저장 기간 중 색도는 가루녹차 첨가 식혜와 무첨가 식혜 모두에 있어서 L값, b값, a값이 약간 증가하는 경향이 있었으나 큰 변화는 보이지 않았다. 따라서 가루녹차를 첨가하여 식혜를 제조할 때, 2% 첨가가 종합적인 관능면에서 적절하였고, 저장성을 향상시킬 수 있을 것으로 생각되었다.

Keywords

References

  1. Lee, HJ and Jun, HJ. A study on the making of sikhe. J. Kor. Home Eco. Associ. 14:685-693. 1976
  2. Sohn, JW. Literature review on sikhye(rice beverage). Kor. J. Dietary Culture 9:231-240. 1994
  3. Moon, SJ and Cho, HJ. A scientific studies on sikhe. J. Kor. Home Eco. Associ. 16:43-49. 1978
  4. Cho, SO. The effects of degree of germination of barley, soaking time of malt powder, variety of rice and cooking methods on the quality of sikhe. J. Kor. Home Eco. Associ. 21:79-85. 1983
  5. Cho, SH. A study on the production of malt and sikhe. Kor. J. Soc. Food Sci. 6:77-83. 1990
  6. Kim, BS, Lee, TS and Lee, MW. Changes of component in sikhe during saccharification. Kor. J. Appl. Microbiol. Bioeng. 12:125-129. 1984
  7. Nam, SJ and Kim, KO. Characteristics of sikhe (Korean traditional drink) made with different amount of cooked rice and malt and with different sweeteners. Kor. J. Food Sci. Technol. 21:197-202. 1989
  8. Yook, C, Whang, YH, Pek, UH and Park, KH. Preparation of sikhe with starch hydrolysing enzymes/malt mixture in tea-bag. Kor. J. Food Sci. Technol. 22:296-299. 1990
  9. Kim, SK, Kim, JM and Choi, YB. Effect of sikhe manufacturing conditions on the rice shape. Kor. J. Dietary Culture. 15: 1-8. 2000
  10. Jeon, ER, Kim, KA and Jung, LH. Morphological changes of cooked rice kernel during saccharification for sikhe. Kor. J. Soc. Food Sci. 14:91-96. 1998
  11. Ann, YG and Lee, SK Some problems of sikhe production and an improvement method of sikhe quality. Kor. J. Food Nutr. 9:45-51. 1996
  12. Ann, YG. A study on sugars in Korean sweet rice drink sikhe (1). Sugar content and its composition. Kor. J. Food Nutr. 10:82-86. 1997
  13. Ann, YG. Preparation of traditional malt sikhe. 1. Preparation by malt and amylolytic enzymes. Kor. J. Food Nutr.. 12:164-170. 1999
  14. Sub, HJ, Chung, SH and Whang, JH. Characteristics of sikhe produced with malt of naked barley, covered barley and wheat. Kor. J. Food Sci. Technol. 29:716-721. 1997
  15. Lee, SK, Joo, HK and Abu, JK. Effects of rice varieties on saccharification in producing sikhe. Kor. J. Food Sci. Technol. 29:470-475. 1997
  16. Choi, YH, Kim, KH and Kang, MY. Varietal difference in processing and sensory characteristics of sikhe in rice. Kor. J. Breed. 33:65-72. 2001
  17. Yook, C and Cho, SC. Application of heat/moisture-treated rices for sikhe preparation. Kor. J. Food Sci. Technol. 28:1119-1125. 1996
  18. Kim, YD, Ha, KY, Choi, YH, Lee, JK and Uhm, TY. Varietal difference of glutimous rice in characteristics of sweet rice drink sikhe. Kor. J. Breed. 34:37-40. 2002
  19. Lee, WJ and Kim, SS. Preparation of sikhe with brown rice. Kor. J. Food Sci. Technol. 30:146-150. 1998
  20. Kim, SS and Lee, WJ. Characteristics of germinated rice as a potential raw material for sikhe production. Kor. J. Food Sci. Technol. 29:101-106. 1997
  21. Kim, MS, Hahn, TR and Yoon, HH. Saccharification and sensory characteristics of sikhe made of pigmented rice. Kor. J. Food Sci. Technol. 31:672-677. 1999
  22. Kim, SS, Kim, SY and Lee, WJ. Characteristics of germinated colored rice as a potential raw material for sikhe. Kor. J. Food Sci. Technol. 30:1092-1096. 1998
  23. Kim, HK and Noh, BS. Optimization of sikhe processing using the obtained data by biosensor. Kor. J. Food Sci. Technol. 34:65-72. 2002
  24. Yeo, SG, Ahn, CW, Lee, YW, Lee, TG, Park, YH and Kim, SB. Antioxidative effect of tea extracts from green tea, oolong tea and black tea. J. Kor. Soc. Food Nutr. 24:299-304. 1995
  25. Kang, WS, Lee, YH, Chung, HH, Kang, MK, Kim, TJ, Hong, JT and Yun, YP. Effects of green tea catechins on the lipid peroxidation and superoxide dismutase. J. Food Hyg. Safety 16:41-47. 2001
  26. Yeo, SG, Ahn, CW, Kim, IS, Park, YB, Park, YH and Kim, SB. Antimicrobial effect of tea extracts from green tea, oolong tea and black tea. J. Kor. Soc. Food Nutr. 24:293-298. 1995
  27. Lee, CH, Choi, BK, Lee, WC, Park, CI, Furugawa, Y and Kimura, S. Effect of dietary protein levels, caffeine and green tea on body fat deposition in wistar rats. J. Kor. Soc. Food Nutr. 21:595-600. 1992
  28. Jung, DW and Park, SI. Effect of green tea powder on the growth inhibition of oral bacteria in yoghurt. Kor. J. Food Sci. Ani. Resour. 25:500-506. 2005
  29. Kwon, MY, Lee, YK and Lee, HG. Sensory and mechanical characteristics of Heunminokcha-injulmi supplemented by green tea powder. Kor. J. Home Economics. 34:329-339. 1996
  30. Park, JH, Kim, YO, Kug, YI, Cho, DB and Choi, HK. Effects of green tea powder on noodle properties. J. Kor. Soc. Food Sci. Nutr. 32:1021-1025. 2003 https://doi.org/10.3746/jkfn.2003.32.7.1021
  31. Kim, JS. Sensory characteristics of green tea bread. Kor. J. Food Nutr. 11:657-661. 1998
  32. Park, YS and Park, GS. The effect of green and black tea powder on the quality of bread during storage. J. East Asian Soc. Dietary Life 11:305-314. 2001
  33. Park, HJ, Kim, SI, Lee, YK and Han, YS. Effect of green tea on kimchi quality and sensory characteristics. Kor. J. Soc. Food Sci. 10:315-321. 1994
  34. Jung, DW and Park, SI. Preparation of drinkable yoghurt added with green tea powder. Kor. J. Food Nutr. 18:349-356. 2005
  35. Park, GS, Park, EJ and Kim, HH, Quality characteristics of green tea powder on mayonnaise. J. East Asian Soc. Dietary Life. 10:411-418. 2000
  36. SAS Institute, Inc. SAS User's Guide, Statistical Analysis System Institute, Cary, NC. 1990
  37. Ann, YG and Lee, SK. A study of sikhe. Kor. J. Food Nutr. 8:165-171. 1995
  38. Shin, DH and Lee, YW. Effect of green tea powder on the sensory quality of cooked rice. Kor. J. Food Nutr. 17:266-271. 2004
  39. Hong, HJ, Choi, JH, Yang, JA, Kim, GY and Rhee, SJ. Quality characteristics of Seolgiddeok added with green tea powder. Kor. J. Soc. Food Sci. 15:224-230. 1999
  40. Kim, HS and Kim, SN. Effect of addition of green tea powder and Angelica keiskei powder on the quality characteristics of yukwa. Kor. J. Soc. Food Cookery Sci. 17:246-254. 2001
  41. Kim, AJ, Lim, YH, Kim, MH and Kim, MW. Quality characteristics of mungbean starch gels added with green tea powder. J. East Asian Soc. Dietary Life 12: 135-140. 2002
  42. Roh, HJ, Shin, YS, Lee, KS and Shin, MK. Effect of water extract of green tea on the quality and shelf life of cooked rice. Kor. J. Food Sci. Technol. 28: 417-420. 1996
  43. Kim, JS and Park, JS. Effect of green tea extract on quality of fermented pan bread. Kor. J. Food Nutr. 15:12-15. 2002
  44. Jung, JY and Cho, EJ. The effect of green tea powder levels on storage characteristics of tofu. Kor. J. Soc. Food Cookery Sci. 18:129-135. 2002
  45. Kim, KH. Effect of addition methods of green tea on fermentation characteristics of kimchi. Kor. J.Food Preservation 9:406-410. 2002
  46. Park, MJ Jeon, YS and Han, JS. Fermentation characteristics of mustard leaf kimchi added green tea and pumpkin powder. J. Kor. Soc. Food Sci. Nutr. 30:215-221. 2001