Food Engineering Progress (산업식품공학)

Korean Society for Industrial Food Engineering (한국산업식품공학회)
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Development of Saengshik Beverage Products and Their Physico-chemical Properties

생식 음료 개발 및 이화학적 특성

  • 이주연 ((주)이롬 생명과학연구원) ;
  • 목철균 (경원대학교 식품생물공학과)
  • Received : 2009.09.11
  • Accepted : 2009.11.25
  • Published : 2009.11.30
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Abstract

Saengshik beverage products were developed to improve the convenience in consumption, and thereby to expand the Saengshik market. Beverages were prepared from 3 commercial Saengshik products (ES, BS, SS) by mixing with water using a high shear blender. The physicochemical and sensory properties of the Saengshik beverage product were compared. The most acceptable beverage product was made of BS at 7.7% (w/w) level. The apparent viscosity of the beverages increased as the Saengshik levels increased. The beverages at lower Saengshik levels showed dilatant fluid characteristics, while they were Newtonian and pseudoplastic fluids at middle and high Saengshik levels, respectively. The beverage products also showed rheopectic type time-dependency at middle (5.7-9.7%) Saengshik levels, while they were time independent at low and high levels.

다양한 식품군을 동결건조 또는 저온에서 건조하여 분말화한 생식은 물과 혼합 시 분산성이 저조하고 섭취방법이 불편하여 생식 소비 및 시장 확대에 제약이 있다. 생식의 섭취를 편의화하기 위하여 음료 타입의 생식을 개발하고자 생식 3종(BS, ES, SS)을 음료로 제조하여 품질을 비교하였다. 생식음료의 이화학적 특성과 관능적 특성을 조사한 결과 BS의 기호도가 가장 높았으며, 생식첨가량은 7.7%에서 기호도가 가장 우수하였다. 생식 BS를 사용한 음료의 경우 생식 함량이 증가함에 따라 점조도는 증가하였으며 함량 5.7% 이하의 음료는 팽창유체 양상을 보이다가 7.7%와 9.7%에서는 뉴튼유체와 유사한 특성을 나타내었고 11.7%에서는 뚜렷한 의가소성을 보였다. 생식음료 점조도의 시간의존성은 생식함량 5.7-9.7% 사이에서는 레오펙틱형 시간의존성이 관찰되었으나 3.7%와 11.7%에서는 시간독립적이었다.

Keywords

Acknowledgement

Supported by : 이롬(주), 경원대학교

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