Food Engineering Progress (산업식품공학)

Korean Society for Industrial Food Engineering (한국산업식품공학회)
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Changes in 2,6-dimethoxy-1,4-benzoquinone and Water Extractable Arabinoxylan Content of Wheat Germ Extract by Enzyme Treatment

효소처리에 따른 밀 배아 추출물의 2,6-dimethoxy-1,4-benzoquinone과 수용성 아라비노자일란 함량 변화

  • 이재강 (사조동아원(주) 제분연구소) ;
  • 이정훈 (사조동아원(주) 제분연구소) ;
  • 최용현 (사조동아원(주) 제분연구소) ;
  • 최용석 (사조동아원(주) 제분연구소) ;
  • 류기형 (공주대학교 식품공학과)
  • Received : 2018.10.16
  • Accepted : 2019.01.11
  • Published : 2019.02.28
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Abstract

This study was carried out using Celluclast 1.5L to increase the content of 2,6-DMBQ and water extractable arabinoxylan in wheat germ extract. Extraction temperatures were 30℃, 45℃ and 60℃. The extraction times were 0, 6, 12, 18, 24 and 30 h. The pH of the extract decreased rapidly from 18 h at 30℃ in both water- and enzyme-treated extracts. 2,6-DMBQ of water- and enzyme-treated extracts increased with the extraction time. At 30-hour extraction time, enzyme-treated extract increased 27.60% at 30℃ extraction temperature than water extraction. Extraction temperatures of 45℃ and 60℃ were increased by 65.03% and 151.05%, respectively. The highest content of water-extractable arabinoxylan was 15.23±0.08 mg/g when the enzyme was treated at an extraction temperature of 60℃ for 30 h. At 30=hour extraction time, enzyme-treated extract increased 7.92% at 30℃ extraction temperature compared to water extraction. Extraction temperatures of 45℃ and 60℃ were increased by 31.20% and 54.38%, respectively.

본 연구는 밀 배아의 기능성 물질인 2,6-DMBQ와 아라비노자일란 추출 효율을 증가시키기 위하여 상업용 효소인 Celluclast 1.5L을 사용하여 추출하였다. 추출 시 온도는 30, 45, 60℃였고, 추출 시간은 0, 6, 12, 18, 24, 30시간 추출 후 상등액 pH 변화와 건조물을 분석하였다. 추출물의 pH는 WEWG와 ETWG 모두 추출 온도 30℃에서는 18시간 추출 시부터 급격하게 감소하였으며, 45℃는 12시간부터 감소하였고, 60℃는 다른 추출 온도와 비교하여 큰 변화는 없었다. 2,6-DMBQ는 WEWG와 ETWG 모두 추출 시간이 경과함에 따라 증가하였다. 추출 온도 30℃에서 가장 높은 함량으로 추출되었으며, 30시간 추출할 때 2,6-DMBQ 함량은 ETWG에서 WEWG 보다 추출 온도 30℃에서 27.60%, 45℃에서 65.03%, 60℃에서 151.05% 증가하였다. 수용성 아라비노자일란 함량은 WEWG와 비교하여 ETWG가 높게 측정되었으며, 효소 처리 후 60℃에서 15.23±0.08 mg/g으로 가장 높은 함량으로 나타났다. 30시간 추출 시 ETWG와 WEWG에서의 수용성 아라비노자일란 함량을 비교했을 때 30℃에서 7.92%, 45℃에서 31.20%, 60℃에서 54.38% 증가하였다. 본 연구 결과는 제분 부산물인 밀 배아에 항염 활성을 보유하는 기능성 소재로서의 활용을 위한 기초자료로 이용될 수 있을 것으로 판단된다.

Keywords

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