Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Development and characterization of thickeners using natural materials

자연재료를 이용한 증점소재 개발 및 특성연구

  • Jin, Ha-Kyung (Department of Foodservice Management and Nutrition, Sangmyung University) ;
  • Kim, Bum-Keun (Korea Food Research Institute) ;
  • Han, Jung-Ah (Department of Foodservice Management and Nutrition, Sangmyung University)
  • Received : 2016.11.09
  • Accepted : 2016.12.01
  • Published : 2017.06.30
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Abstract

For elderly individuals with swallowing difficulties, texture-modified food containing thickeners is needed. The plant materials freeze-dried yam, lotus root, and artichoke were evaluated for their potential use as thickeners and compared to a commercial thickener (corresponding to 0.5, 1, or 2 bag viscosity, respectively). Yam powder showed a high peak viscosity, corresponding to that of rice starch. Although artichoke showed no pasting viscosity, it may be useful as a thickener when combined with xanthan gum. The certain amount of yam, lotus root, and artichoke powders added to commercial soup showed similar viscosities as the addition of 0.5 or 1 bag commercial thickener at $60^{\circ}C$. However, sufficient viscosity corresponding to that of 2 bags of commercial thickener was not achieved by using the plant material itself. Sensory tests by elderly subjects revealed that the soup with yam powder was preferred compared to soup made with other materials.

노화로 인해 삼키는 데 어려움이 있는 노인들을 위한 천연 증점소재 개발을 위해 식이섬유 및 기타 유용한 성분이 함유된 것으로 알려진 마, 연근, 돼지감자 가루를 선택, 시판증점제의 0.5, 1, 2포에 해당하는 점도값을 갖도록 시판 국에 첨가하여 첨가량을 결정하고 점도 및 물리적, 관능적 특성을 비교하였다. 세 천연소재의 호화특성 분석결과, 마가루는 쌀전분과 유사한 최고점도를, 연근가루는 쌀가루보다 큰 최고점도를 보여 증점제로서의 가능성을 보였다. 돼지감자가루는 전혀 호화특성을 보이지 않아 그 자체로는 증점소재로서 바람직하지 않으나, 노인들에게 필요한 식이섬유를 많이 함유하고 있어 잔탄검을 첨가하여 증점제로서의 가능성을 확인하였다. 세 소재를 이용하여 시판증점제의 0.5포 및 1포에 해당하는 점도값을 갖는 첨가량은 결정할 수 있었지만, 천연소재 첨가만으로는 시판증점제 2포에 해당하는 첨가량을 결정하기는 어려웠다. 노인을 대상으로 국에 증점소재를 첨가하여 관능검사를 실시한 결과 마가루 첨가군이 가장 높은 선호도를 얻어 시판증점제를 대체할 천연소재로서의 가능성을 보였다.

Keywords

References

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