Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Changes in Characteristics of Low-salted Kochujang with Licorice (Glycyrrhiza glabra), Mustard (Brassica juncea), and Chitosan during Fermentation

감초, 겨자 및 키토산을 첨가한 저염 고추장의 특성 변화

  • Lim, Seong-Il (Traditional Food Research Group, Korea Food Research Institute) ;
  • Song, Sun-Mi (Traditional Food Research Group, Korea Food Research Institute)
  • 임성일 (한국식품연구원 전통식품연구단) ;
  • 송선미 (한국식품연구원 전통식품연구단)
  • Published : 2010.04.30
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Abstract

Changes in characteristics of low-salted Kochujang added with mixed additives (licorice 0.8%, mustard 0.7%, chitosan 2%) were investigated during fermentation for 40 days. There was no significant difference in viable and yeast cell counts and color among all treatments, whereas lactic acid bacteria counts of 6.8% and 5.9% salted Kochujang added with the mixed additives (p<0.05) were significantly lower than that of control. The phenomenon of abnormal fermentation was observed on surface of low-salted Kochujang but not the low-salted Kochujang added with the mixed additives. The level of amino nitrogen in low-salted Kochujang was close to that of 8.5% salted Kochujang at 20 days of fermentation; however, the amino nitrogen content in 5.9% salted Kochujang added with the additives was 1.6 times higher than in 8.5% salted Kochujang at 40 days. In sensory evaluation, 5.9% salted Kochujang with the additives had the highest score in overall palatability. These results indicate that salt contents of Kochujang could be lowered up to 5.9% by addition of the mixture of licorice, mustard and chitosan, resulting in improvement of palatability and shortening of fermentation time.

감초, 겨자, 키토산을 이용하여 전통고추장의 염도를 30% 낮춘 고추장을 제조하여 고추장의 발효 중 특성변화를 조사하였다. 염도를 8.5%에서 6.8%, 5.9%로 낮추고 감초, 겨자, 키토산을 첨가하여 40일간 발효한 고추장 내부의 총 균수, 효모수, 색도에서는 처리구간별 유의성이 없었고 젖산균에 있어서는 유의적이었으나(p<0.05) 첨가물이 젖산균의 생육에 미치는 영향은 크지 않았다. 저염 고추장은 8.5% 염도의 고추장에 비해 고추장표면에 오염 또는 이상발효현상이 발생하였으나 첨가물을 함유한 고추장에서는 그러한 현상이 발생하지 않았다. 저염 고추장의 아미노태 질소 함량은 발효 20일에 8.5% 염도의 고추장과 유사하였으나, 발효 40일째에서는 염도 8.5%의 고추장에 비해 첨가물을 첨가한 5.9% 염도의 고추장에서 1.6배 높게 검출되었다(p<0.01). 관능평가에서는 첨가물을 첨가한 염도 5.9%의 고추장의 종합적인 기호도가 가장 높게 나타났다. 이러한 결과로부터 감초, 겨자, 키토산의 첨가는 고추장의 발효기간을 단축시키고 기호성을 향상시킬 수 있어 5.9%까지 염도를 낮출 수 있을 것으로 판단된다.

Keywords

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