Food Science and Preservation (한국식품저장유통학회지)

The Korean Society of Food Preservation (한국식품저장유통학회)
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Quality Characteristics of Instant Nuroong-gi to which Dioscorea japonica powder was added

마 분말이 첨가된 즉석 누룽지의 품질특성

  • Published : 2009.10.30
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Abstract

We assessed the quality characteristics of instant Nuroong-gi prepared with 0%, 2%, 4%, 6%, or 8% (all w/w) yam powder. We measured color, water binding capacity, viscosity, the sedimented volume of insoluble solids, turbidity, total sugar, and reducing sugar and conducted sensory evaluation. Lightness decreased with a rise in the proportion of yam powder. However, both redness and yellowness rose with an increasing proportion of powder. The water binding capacities of Nuroong-gi prepared with yam powder were higher than that of rice powder. The viscosity increased with increasing levels of powder. The level of insoluble solids, the turbidity, and the concentrations of total sugar and reducing sugar all rose with increasing cooking temperature. Sensory evaluation showed that Nuroong-gi with yam powder at 2% (w/w) was optimally acceptable.

마 분말을 첨가한 누룽지의 품질특성을 비교하기 위하여 마 분말 무 첨가 2, 4, 6, 8% 첨가하여 처리조건에 따라 제조한 누룽지를 평가 비교하였다. 마 분말을 첨가하여 제조된 누룽지는 색도측정, 물 결합능력, 점도측정, 침전물 생성량 및 탁도 측정, 총당측정, 환원당측정, 관능평가를 분석한 결과 색도는 마 분말 첨가량이 증가할 수 록 명도(L)는 낮게 나타내었다. 적색도(a)와 황색도(b)에서는 마 분말 첨가량에 따라 명도(L)와는 다르게 마 분말 첨가량이 증가할수록 적색도(a)와 황색도(b)의 차이가 증가하였다. 마 분말의 첨가량 따른 누룽지의 물 결합능력은 6.02~6.78로 큰차이는 발생하지 않았지만 쌀가루의 물 결합능력과 비교하였을 때는 물 결합능력이 크게 높아지는 것으로 나타내었다. 점도는 마 분말 첨가량이 증가할수록 누룽지의 점도가 높아졌다. 침전물 생성량은 온도에 따라서 추출한 침전물이 마 분말의 첨가량에 상관없이 유의적인 차이가 발생하지 않았으며 온도의 변화에 따라 침전물이 증가하였다. 탁도에서는 추출온도가 높을수록 증가하는 경향을 나타내었다. 마 분말이 첨가된 즉석 누룽지의 품질특성 685 총당과 환원당은 마 분말의 첨가량에 유의적인 차이가 발생하지 않았으며 온도의 변화에 따라 증가하였다. 관능평가에서 마 분말 첨가량 큰 누룽지가 색과 향에서 좋았으며 맛과 종합적인 기호도에서 마 분말 2%첨가된 누룽지가 가장 우수하였다. 따라서 마 분말 2%첨가된 누룽지가 표면의 식감이 좋아지고 누룽지 고유의 향을 증가하며 먹을 때 고소한 맛을 느끼는 장점을 가질 것이라 판단된다.

Keywords

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