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Quality and physicochemical characteristics of newly developed Sunsik products with germinated brown rice

발아현미 선식의 품질 및 이화학적 특성

  • Bang, Yae-Sol (Division of Food and Nutrition, Chonnam National University) ;
  • Jang, Eun Hee (Department of Foodservice Management and Nutrition, Sangmyung University) ;
  • Chung, Hyun-Jung (Division of Food and Nutrition, Chonnam National University)
  • 방애솔 (전남대학교 식품영양과학부) ;
  • 장은희 (상명대학교 외식영양학과) ;
  • 정현정 (전남대학교 식품영양과학부)
  • Received : 2017.07.17
  • Accepted : 2017.07.31
  • Published : 2017.10.31

Abstract

The quality and physicochemical characteristics of newly developed Sunsik products were investigated. Sunsik A, B, and C were prepared under different roasting temperatures and times (A: $220^{\circ}C$, 15 min; B: $220^{\circ}C$, 25 min; C, D, E: $230^{\circ}C$, 15 min). Sunsik D was prepared using grain flours passed through a 100 mesh screen, whereas the other products were passed through a 140 mesh screen. Sunsik E was prepared by the addition of germinated grains. The moisture content of Sunsik products ranged from 3.24-7.10%. The viscosity and sugar content ranged from 57-74 cP and $1.5-1.7^{\circ}Bx$, respectively. The pH values were similar among the samples. Sunsik D had the highest gelatinization enthalpy, whereas Sunsik C had the lowest. The viable cell counts were in the range from 3-4 log CFU/g and coliform groups were not detected. Sunsik B and E had higher scores for savory flavor and sweet taste than other Sunsik products.

본 연구에서는 다양한 조건에서 선식을 제조한 후 선식의 이화학적 특성, 기능성 특성, 미생물 안전성 검사 및 관능적 특성을 살펴보았다. 선식 제조 조건으로 로스팅 시간과 온도를 다르게 하여 제조하였고, 산업적인 활용을 위해 입자사이즈는 두 가지 형태로 제조하였다. 또한 기능성과 영양적 가치를 높이기 위하여 귀리, 수수, 조를 발아시켜 첨가하였다. 선식의 수분함량은 로스팅 시간이 길어질수록 낮았으며 발아곡류를 첨가하여 제조한 선식에서 다소 높은 수분함량을 나타냈다. 140 mesh로 제조한 선식은 100 mesh로 제조한 선식에 비해 높은 수분함량과 다소 낮은 조단백과 조지방 함량을 나타냈다. 선식의 색도 역시 로스팅 시간이 길어질수록 명도가 감소함을 확인할 수 있었다. 선식 점도는 발아곡류를 첨가한 시료에서 70 cP 이상의 점도를 나타냈다. 선식의 pH는 약산성의 범위를 나타냈으며, DSC를 이용하여 측정한 호화도는 로스팅 온도가 높을수록 호화도가 높아 선식의 호화엔탈피는 낮게 나타났다. DPPH 라디칼 소거능은 긴 로스팅 시간에서 처리한 선식과 발아곡류를 첨가한 선식이 높게 나타났다. 관능평가에서도 긴 로스팅 시간에서 처리한 선식이 높은 고소한 향을 나타냈다. 결과적으로 본 연구에서 로스팅 조건, 입자사이즈, 발아곡류 첨가는 선식의 품질에 영향을 미치는 것을 확인할 수 있었다.

Keywords

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