Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Isoflavone and Quality Improvement of Soymilk by using Germinated Soybean

발아콩을 이용한 콩우유의 isoflavone 향상 및 품질 특성 개선

  • Lee, Hye-Yeon (Department of Food Science and Technology, Sejong University) ;
  • Kim, Joo-Sook (Department of Food Science and Technology, Sejong University) ;
  • Kim, Young-Su (Maeil Dairy Industry Co., R&D Center) ;
  • Kim, Woo-Jung (Department of Food Science and Technology, Sejong University)
  • 이혜연 (세종대학교 식품공학과) ;
  • 김주숙 (세종대학교 식품공학과) ;
  • 김영수 ((주)매일유업 중앙연구소) ;
  • 김우정 (세종대학교 식품공학과)
  • Published : 2005.06.30
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Abstract

Isoflavone content of soymilk prepared with germinated soybean significantly increased. Soymilk prepared with Shinpaldal-2 germinated far 12 hr showed maximum 5.552 mg/g isoflavone. Solid content in soymilk increased from 5.68 to 6.02% for Shinpaldal-2 and from 5.30 to 6.10% for Seomoktae with 24 hr germination. 'L' values of soymilk increased, whereas 'a' and 'b' values decreased. Viscosity of soymilk decreased, while stability increased as germination time increased up to 24 hr, Organoleptic flavor properties of soymilk improved, showing decrease in benny and increase in savory flavors. Acceptance test showed soymilk prepared with 12 hr germinated Shinpaldal-2 showed highest acceptance, while Seomoktae soymilk showed least.

콩우유의 기능성 향상과 품질 특성 개선을 위하여 콩을 발아시켜 발아기간별로 콩우유를 제조한 다음 isoflavone 및 올리고당의 함량과 콩우유의 물리적 및 관능적 품질 특성을 비교하였다. 발아콩으로 제조한 콩우유의 isoflavone 함량은 증가하여 신팔달 2호의 경우 12시간 발아에서 5.552 mg/g으로 최대값을 보였다. 콩우유의 물리화학적 특성은 고형분 함량의 경우 신팔달 2호는 5.68%에서 6.02%로 증가하였으며 서목태는 24시간 발아 후 5.30%에서 6.10%로 증가하였다. 색도는 L 값의 증가와 함께 a, b값은 감소하여 색의 밝아짐의 효과가 있었다. 콩우유의 점도는 감소하였으며 현탁액 안정도는 24시간 발아후 개선되었다. 콩우유의 관능적 특성은 콩비린 냄새의 감소와 고소한 냄새, 맛의 증가로 발아콩으로 제조한 콩우유의 관능적 특성이 향상되었다. 신팔달 2호의 경우 12시간 발아 콩으로 제조한 콩우유의 선호도가 가장 높게 평가되었다.

Keywords

References

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