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Quality Characteristics and Granule Manufacture of Mulberry and Blueberry Fruit Extracts

오디 및 블루베리 추출물을 이용한 과립제조 및 품질특성

  • Park, Hye-Mi (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Yang, Su-Jin (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Kang, Eun-Ji (Department of Food Science and Technology, Catholic University of Daegu) ;
  • Lee, Dae-Hoon (Soriso Co.) ;
  • Kim, Dae-Ik (Oriental Medicine Industry Support Center, Daegu Technopark) ;
  • Hong, Joo-Heon (Department of Food Science and Technology, Catholic University of Daegu)
  • 박혜미 (대구가톨릭대학교 식품가공학전공) ;
  • 양수진 (대구가톨릭대학교 식품가공학전공) ;
  • 강은지 (대구가톨릭대학교 식품가공학전공) ;
  • 이대훈 ((주)소리소) ;
  • 김대익 ((재)대구테크노파크 한방산업지원센터) ;
  • 홍주헌 (대구가톨릭대학교 식품가공학전공)
  • Published : 2012.08.31

Abstract

The quality characteristics of granules prepared from water and 50% ethanol extracts of mulberry and blueberry were investigated. The total polyphenol and total flavonoid contents of mulberry and blueberry were higher in the 50% ethanol extract than those in the water extract. Total anthocyanin content was highest in the 50% mulberry ethanol extract (470.91 mg/100 g). Oxygen radical absorbance capacity (ORAC) of the mulberry and blueberry extracts was 335.37 ${\mu}moles\;TE/g$ and 238.14 ${\mu}moles\;TE/g$, respectively. Superoxide radical scavenging activity of the mulberry and blueberry extracts increased with an increase in extract concentration. Total polyphenol and flavonoid contents of granules from the mulberry extract were 4.83 mg/mL and 3.49 mg/mL, respectively. Total anthocyanin content of granules from the mulberry and blueberry extracts was 76.26 mg/100 g and 75.26 mg/100 g, respectively. Electron donating ability and ORAC of granules from the mulberry and blueberry extracts were 45.09% and 24.10%, 87.65 ${\mu}moles\;TE/g$ and 57.59 ${\mu}moles\;TE/g$, respectively. Granules that were stored for 7 weeks at room temperature had low anthocyanin content degradation and Hunter color values (L, a, and b).

오디 및 블루베리 추출물의 이화학적 특성을 살펴보았고 추출물을 이용하여 과립을 제조하였으며 다양한 품질특성을 분석하였다. 오디, 블루베리 추출물의 추출조건에 따른 총 폴리페놀 및 플라보노이드함량은 물 추출물보다 50% 에탄올 추출물에서 높았으며 오디 추출물이 블루베리 추출물보다 높았다. 추출조건에 따른 총 안토시아닌함량은 오디 50% 에탄올 추출물이 470.91 mg/100 g으로 가장 많이 함유되어 있었다. 전자공여능은 오디 추출물이 우수하였고 전반적으로 물 추출물보다는 50% 에탄올 추출물이 높았으며 ORAC값은 50% 에탄올 추출조건에서 오디, 블루베리 각각 335.37 ${\mu}moles\;TE/g$와 238.14 ${\mu}moles\;TE/g$로 분석되어 오디 추출물이 블루베리 추출물보다 항산화능이 우수함을 확인하였고 추출물의 superoxide radical 소거 활성은 추출물의 농도가 증가함에 따라 증가하였으며 50% 에탄올 추출물이 물 추출물보다 높음을 알 수 있었다. 오디 추출물 과립의 총 폴리페놀 및 총 플라보노이드 함량은 각각 4.83 mg/mL와 3.49 mg/mL로 분석되어 블루베리 과립보다 함량이 높았다. 안토시아닌 함량은 오디 과립이 76.26 mg/100 g이었고 블루베리 과립이 75.26 mg/100 g으로 유사하였다. 오디 및 블루베리 과립의 전자공여능은 오디가 45.09%로 블루베리 24.10%보다 우수하였으며 ORAC 값의 경우도 오디가 87.65 ${\mu}moles\;TE/g$였고 블루베리는 57.59 ${\mu}moles\;TE/g$값을 보여주어 오디의 항산화 활성이 우수함을 확인하였다. 오디 및 블루베리 과립은 저장기간에 따른 뚜렷한 색도의 변화가 관찰되지 않았으며 안토시아닌 함량도 미비하게 감소하여 과립의 주요 유용성분인 안토시아닌색소의 안정화에 기여할 수 있을 것으로 사료된다.

Keywords

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