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Quality and Antioxidant Properties of Pound Cakes Supplemented with Flaxseed Powder

아마씨 분말을 첨가한 파운드케이크의 품질 및 항산화 활성

  • Chung, Ha-Sook (Department of Food and Nutrition, Duksung Women's University) ;
  • Lim, Jeong Ah (2Department of Food Science and Engineering, Daegu University) ;
  • Lee, Jun Ho (2Department of Food Science and Engineering, Daegu University)
  • 정하숙 (덕성여자대학교 식품영양학과) ;
  • 임정아 (대구대학교 식품공학과) ;
  • 이준호 (대구대학교 식품공학과)
  • Received : 2014.08.07
  • Accepted : 2014.10.06
  • Published : 2014.12.31

Abstract

The feasibility of incorporating flaxseed powder up to 8% (w/w) as a value-added food ingredient in convenient food products was investigated using pound cake as a model system. The moisture content, volume, height, and hardness of cakes decreased significantly with increasing levels of flaxseed powder (P<0.05). On the other hand, baking loss increased with higher flaxseed powder in the formulation (P<0.05). Lightness and yellowness decreased, whereas redness increased significantly (P<0.05). 1,1-Diphenyl-2-picrylhydrazyl (DPPH) and 2,2'-azino-bis-3-ethylbenzthiazoline-6-sulphonic acid (ABTS) radical scavenging activities increased significantly (P<0.05), and they were well correlated. The consumer acceptance test indicated that addition of 2% flaxseed powder had the most favorable effect on consumer preferences in general. Based on the overall observation, pound cakes with 2% flaxseed powder is recommended to take advantage of its functional properties without sacrificing consumer acceptability.

아마씨 분말의 첨가량을 0~8%로 달리하여 파운드케이크를 제조한 후 물리 화학적 품질, 항산화 활성 및 소비자 기호도를 조사하였다. 케이크의 굽기 손실률은 아마씨 분말의 첨가량이 증가함에 따라 유의적으로 증가하였으며(P<0.05), 수분함량, 부피, 높이 및 경도는 아마씨 분말의 함량이 증가함에 따라 유의적으로 감소하였다(P<0.05). 한편 명도($L^*$)와 황색도($b^*$)는 황갈색인 아마씨 분말의 첨가량이 증가함에 따라 유의적으로 감소하였으며(P<0.05), 적색도($a^*$)는 유의적으로 증가하였다(P<0.05). 항산화 활성을 나타내는 DPPH와 ABTS radical 소거능은 유의적 차이를 나타내며 증가하였으며(P<0.05), 두 지표 사이의 상관관계가 매우 높은 것으로 나타났다. 소비자 기호도 검사 결과 색을 제외한 모든 평가항목에서 아마씨 분말 2% 첨가군이 대조군에 비해 높게 평가되었으며, 아마씨 분말의 첨가량이 증가함에 따라 부드러운 정도는 선호도가 증가하였으나 그 밖의 다른 항목은 선호도가 감소하였다(P<0.05). 따라서 관능품질과 건강 기능성 효과 등을 중시하는 소비자들의 기호를 충족시키기 위한 아마씨 파운드케이크의 아마씨 분말 첨가 최적비율은 2%로 판단된다.

Keywords

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