Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Quality characteristics of frozen surichwi rice cake made using transglutaminase treated-rice flour

Transglutaminase 처리 쌀가루를 이용한 수리취 첨가 냉동 송편의 품질특성

  • Received : 2018.07.30
  • Accepted : 2018.09.21
  • Published : 2018.10.31
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Abstract

Transglutaminase (TGase), which forms linkages among proteins, has been used to improve food quality. In the current study, quality characteristics such as color values, texture profile parameters, and sensory profiles of the frozen surichwi (Synurus deltoids) rice cake made using transglutaminase (TGase) treated-rice flour were investigated, with a view to producing high-value rice products. The results indicate that Hunter color values (L and b) and TPA parameter values (hardness, gumminess and chewiness) of frozen surichwi rice cake made with TGase-treated rice flour were significantly changed, and that these properties may be applied to improve the sensory qualities of final products. Also, the sensory acceptability scores related to color, appearance, taste and texture, as well as overall acceptability of the TGase-treated frozen surichwi rice cake, were found to be significantly higher compared to controls. In conclusion, the results clearly indicate that TGase-treated rice flour carries the potential to improve the overall quality of frozen rice cake, and that surichwi is an effective ingredient for sensory profiles.

수리취의 첨가량을 10, 15, 20%로 하여 냉동 수리취 송편을 제조한 다음 해동후 색도, 기계적 품질특성, 관능적 품질특성 평가를 실시한 결과는 다음과 같다. 수리취를 첨가한 송편의 색도는 수리취 함량이 증가함에 따라 L값은 감소하였고, a값은 음(-)의 값을 나타냈으며 b값은 대조군보다 높은 값으로 첨가량이 증가할수록 증가하는 경향으로 나타났다. 수리취 첨가 냉동 송편의 해동 후 기계적 텍스처 측정 결과 수리취 첨가량에 따라 경도(hardness), 점착성(gumminess), 씹힘성(chewiness)이 유의적으로 증가하고, 응집성(cohesiveness)은 감소하였으며, 탄력성(springiness)은 수리취 비첨가구와 유의적 차이는 나타나지 않았다. 색과 향의 강도는 수리취의 함량이 증가할수록 높은 점수로 평가되었다. 졸깃함, 향, 맛, 텍스처의 기호도는 15% 첨가구가 5.33-6.50점으로 가장 높은 기호도를 나타내었다. 전체적인 기호도는 수리취 20% 첨가구가 가장 낮게 나타났으며, 그 외 실험군은 유의적 차이가 나타나지 않았다. 냉동 수리취 송편의 조직감 향상을 위하여 TGase 처리한 쌀을 이용하여 수리취 송편을 제조하였다. TGase 처리한 쌀을 이용하여 제조한 냉동 수리취 송편의 해동 후 기계적 텍스처 측정에서 비처리구보다 경도, 점착성, 씹힘성이 유의적으로 크게 증가하였다. TGase 처리된 쌀을 이용하여 제조한 냉동 수리취 송편의 해동 후 조직감의 기호도가 크게 상승하였으며, 전체적인 기호도도 7.17점으로 높게 평가되었다. 냉동 수리취 송편 제조 시 쌀에 TGase를 처리하고 수리취를 15% 첨가하는것이 적합하며 이는 관능적인 측면에서 좋은 기호도를 나타내는것으로 나타났다. 본 연구를 바탕으로 TGase를 처리한 쌀가루를 이용하여 관능적 특성이 우수한 냉동 수리취 송편의 제조 및 상품화가 가능하다고 판단된다.

Keywords

References

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