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Quality characteristics of Yakju containing pretreated lotus leaves

전처리를 달리한 연잎을 이용한 약주의 품질특성

  • Choi, Jeong-Sil (Fermented Food Science Division, National Institute of Agricultural Science) ;
  • Yeo, Soo-Hwan (Fermented Food Science Division, National Institute of Agricultural Science) ;
  • Choi, Han-Seok (Fermented Food Science Division, National Institute of Agricultural Science) ;
  • Jeong, Seok-Tae (Fermented Food Science Division, National Institute of Agricultural Science)
  • 최정실 (국립농업과학원 발효식품과) ;
  • 여수환 (국립농업과학원 발효식품과) ;
  • 최한석 (국립농업과학원 발효식품과) ;
  • 정석태 (국립농업과학원 발효식품과)
  • Received : 2015.12.01
  • Accepted : 2016.02.05
  • Published : 2016.04.30

Abstract

This study aimed to find an effective preservation method of lotus leaves for the preparation of lotus-leaf Yakju throughout the year. The characteristics of Yakju containing lotus leaves pretreated by blanching, steaming, roasting, and drying were investigated in this study. The chemical properties of Yakju (pH, amino acidity, alcohol content, and volatile acid content) were significantly different for all treatments, except for the total acid content. The polyphenol content ranging from 315.89 to 462.63 ppm (p<0.05) was significantly different depending on pretreatment method L color value for Yakju was not significantly different all treatments, while a value was significantly different in Yakju containing frozen stored leaves after pretreatment. The b value was lowest for the blanching treatment, and was significantly different for all treatments. Among the organic acids present in Yakju, the oxalic, citric, and malic acid contents were significantly different for all treatments. In sensory evaluation, lotus-leaf Yakjus containing fresh leaves and dried leaves were preferred to the others in color and flavor among Yakjus prepared with lotus leaves before cold storage. However, among the Yakjus prepared with lotus leaves after cold storage, that containing blanched leaves was preferred to the others in terms of flavor, taste, and overall acceptability.

연잎으로 제조한 약주의 연중 생산을 위한 원료의 효과적인 전처리 방법에 대하여 알아보기 위해 냉동 전 후로 처리를 달리한 연잎을 사용한 연잎약주의 품질특성을 조사하였다. 냉동 전 후로 처리한 연잎약주에서 총산함량을 제외하고 pH, 아미노산도, 알코올, 휘발산 함량에서 처리구간의 유의적인 차이를 나타냈다. 폴리페놀 함량은 전체적으로 $315.89{\pm}28.08{\sim}462.63{\pm}13.00ppm$의 범위였고 모든 처리구간에 유의적인 차이를 보였다. 특히, 냉동전 덖음 처리 약주에서 $462.63{\pm}13.00ppm$으로 높은 수치를 보였다. 약주의 색도에 있어서는 L값의 경우 모든 처리구에서 유의적인 차이를 보이지 않았고, 적색도를 나타내는 a값은 냉동 후 처리한 약주에서 유의적인 차이를 보이지 않았고 냉동전 처리한 약주에서는 유의적인 차이를 보였다. 황색도를 나타내는 b값에서는 냉동 전 후 데치기 처리에서 가장 낮은 값을 보였고 모든 처리구간에 유의적인 차이를 보였다. 연잎 약주의 유기산 중에서 주석산(tartaric acid)과 호박산(succinic acid)은 모든 처리구간에 유의적인 차이가 없었으며 옥살산(oxalic acid), 구연산(citric acid), 사과산(malic acid) 함량은 처리구에 따라 다른 양상을 보였다. 냉동전 처리한 연잎 약주의 기호성 평가 결과, 냉동전 처리 연잎약주의 경우, 색과 향에 있어서 생잎과 건조처리구의 선호도가 높게 나타났다. 반면, 색에 있어서 덖음처리(10%)와 향에 있어서 데치기 처리(15%)가 낮은 선택율을 보였다. 향에 있어서는 생잎이나 건조 처리구 약주에서 더 선호하는 것으로 나타났다. 맛이나 전반적인 기호도에 있어서는 색과 향기의 결과와는 다르게, 데치기 처리가 높은 선택비율(40%)을 보였는데 약주의 전반적인 기호도는 색과 향기보다는 맛이 크게 영향을 미치는 것으로 보인다. 냉동후 처리한 연잎을 사용한 약주에서는 색은 덖음처리구가 가장 높은 수치를 나타냈고 향이나 맛, 전반적인 기호도에서는 데치기 처리구에서 가장 높은 수치를 나타냈다.

Keywords

References

  1. Lee JY, Kwak EJ (2009) Fermentation characteristics of grape Yakju made with three kinds of grape. J East Asian Soc Dietary Life, 19, 96-104
  2. Kim MJ, Kim BH, Han JK, Lee SY, Kim KS (2011) Analysis of quality properties and fermentative microbial profiles of takju and Yakju brewed with or without steaming process. J Fd Hyg Safety, 26, 64-69
  3. Cho KS, Jeong EY, Choi HS, Kim MK (2012) Brewing and quality characteristics of Schisandra chinensis Yakju. J Appl Biol Chem, 55, 163-167 https://doi.org/10.3839/jabc.2012.025
  4. Jin TY, Kim ES, Eun JB, Wang SJ, Wang MH (2007) Changes in physicochemical and sensory characteristics of rice wine, Yakju prepared with different amount of red yeast rice. Korean J Food Sci Technol, 39, 309-314
  5. Kim OS, Choi OJ, Shim KH (2012) Effect of pretreatment on the physicochemical properties of lotus root powder. Korean J Food Preserv, 19, 74-80 https://doi.org/10.11002/kjfp.2012.19.1.074
  6. Yang HC, Heo NC, Choi KC, Ahn YJ (2007) Nutritional composition of white-flowered and pink-flowered lotus in different parts. Korean J Food Sci Technol, 39, 14-19
  7. Yoo HN, Chung CH (2011) Fermentation characteristics of takju prepared with lotus leaf. Korean J Food Cook Sci, 27, 577-587 https://doi.org/10.9724/kfcs.2011.27.5.577
  8. Lee HK, Choi YM, Noh DO, Suh HJ (2005) Antioxidant effect of korean traditional lotus liquor (Yunyupju). International Journal of Food Science and Technology, 40, 709-715 https://doi.org/10.1111/j.1365-2621.2005.00990.x
  9. Lee KS, Kwon YJ, Lee KY (2008) Analysis of chemical composition, vitamin, mineral and antioxidative effect of the lotus leaf. J Korean Soc Food Sci Nutr, 37, 1622-1626 https://doi.org/10.3746/jkfn.2008.37.12.1622
  10. Lee KS, Lee KY (2011) Effect of lotus (Nelumbo nucifera) leaf extract on serum and liver lipid levels of rats fed a high fat diet. Korean Soc Food Sci Nutr, 40, 1544-1547 https://doi.org/10.3746/jkfn.2011.40.11.1544
  11. Shin MK, Han SH (2006) Effects of lotus (Nelumbo nucifera Gaertner) leaf powder on lipid concentrations in rats fed high fat diet rats. Korean J Food Culture, 21, 202-208
  12. Lee KS, Oh CS, Lee KY (2006) Antimicrobial Effect of the fractions extracted from a lotus (Nelumbo nucifera) leaf. J Korean Soc Food Sci Nutr, 35, 219-223 https://doi.org/10.3746/jkfn.2006.35.2.219
  13. Park BH, Jeon ER, Kim SD, Cho HS (2010) Quality characteristics of dried noodle added with lotus leaf powder. Korean J Food Culture, 25, 225-231
  14. Han KY, Yoon SJ (2007) Quality characteristics of lotus leaf jeolpyun during storage. J Korean Soc Food Sci Nutr, 36, 1604-1611 https://doi.org/10.3746/jkfn.2007.36.12.1604
  15. Jeong CS, Um GJ, Park JN (2010) Changes of storage temperatures on the physiological characteristics in leafy vegetables. J Agric Life Sci, 22, 33-41
  16. Lee YJ, Lee HO, Kim JY, Kwon KH, Cha HS, Kim BS (2011) Quality characteristics of frozen Doraji (Platycodon grandiflorum) according to various blanching treatment conditions. Korean J Food Preserv, 18, 661-668 https://doi.org/10.11002/kjfp.2011.18.5.661
  17. Choi HD, Koh YJ, Kim YS, Choi IW, Cha DS (2007) Changes in physiochemical and sensory characteristics of dandelion (Taraxacum officinale) leaves by roasting treatment. Korean J Food Sci Technol, 39, 515-520
  18. Kim DC, Kim DW, In MJ (2006) Preparation of lotus leaves tea and its quality characteristics. J Korean Soc Appl Biol Chem, 49, 163-164
  19. Lee BS, Lee WY (2010) Changes in the chemical composition of apple slices pretreated with supercritical carbon dioxide. Korean J Food Preserv, 17, 256-260
  20. National Tax Service Liquors Licence Aid Center (2009) Liquor analysis code, Korea, p 42
  21. Chang EH, Jeong ST, Roh JH, Jeong SM, Lee HC, Choi JU (2010) Wine quality properties with reference to the temperature of grape-must prior to fermentation. Korean J Food Preserv, 17, 608-615
  22. Jung SM, Chang EH, Park SJ, Jeong ST, Roh JH, Hur YY Lee HC (2010) Berry thinning effects on the fruit and wine quality of grape 'Muscat Bailey A'. Korean J Food Preserv, 17, 625-630
  23. Song YR, Lim BU, Song GS, Baik SH (2015) Quality characteristics and antioxidant activity of Makgeolli supplemented with Omija berries (Schizandra Chinensis Baillon). Korean J Food Sci Technol, 47, 328-335 https://doi.org/10.9721/KJFST.2015.47.3.328
  24. Chun AR, Kim DJ, Yoon MR, Oh SK, Choi IS, Hong HC, Kim YG (2012) Effect of milling degree on the physicochemical and sensory quality of Sogokju. J Korean Soc Food Sci Nutr, 41, 136-142 https://doi.org/10.3746/jkfn.2012.41.1.136
  25. Kang JE (2013) Manual of Fermented Food Properties, National Institute of Agricultural Science, Department of Agro-Food Resorces, Wanju, Korea, p 27
  26. Lee KS, Kwon YJ, Lee KY (2008) Analysis of chemical composition, vitamin, mineral and antioxidative effect of the lotus leaf. J Korean Soc Food Sci Nutr, 37, 1622-1626 https://doi.org/10.3746/jkfn.2008.37.12.1622
  27. Kong MH, Yeo SH, Choi JH, Choi HS, Jeong ST (2011) Characteristics of the Yakju fermented with differently-processed lotus leaves. J East Asian Soc Dietary Life, 21, 911-917
  28. Lee HK, Choi YM, Noh DO, Suh HJ (2005) Antioxidant effect of korean traditional lotus liquor (Yunyupju). Int J Food Sci Technol, 40, 709-715 https://doi.org/10.1111/j.1365-2621.2005.00990.x
  29. Noh JM, Kang JE, Choi JH, Jeong ST, Choi HS (2014) Changes in physiochemical properties of Yakju prepared by accelerated aging without protease. Korean J Food Sci Technol, 46, 702-709 https://doi.org/10.9721/KJFST.2014.46.6.702

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