Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Physicochemical and sensory characteristics of commercial top-fermented beers

시판 상면발효맥주의 관능 및 이화학 특성 분석

  • Sung, Se-ah (Department of Culinary and Food Service Management, Sejong University) ;
  • Lee, Seung-Joo (Department of Culinary and Food Service Management, Sejong University)
  • 성세아 (세종대학교 조리외식경영학과) ;
  • 이승주 (세종대학교 조리외식경영학과)
  • Received : 2016.06.30
  • Accepted : 2016.09.27
  • Published : 2017.02.28
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Abstract

The sensory characteristics of 12 commercial top-fermented beers were determined by sensory descriptive analysis. Beer samples were also analyzed for soluble solids, titratable acidity, pH, reducing sugar content, bitterness unit (BU), turbidity, hunter color values, amino acid content, total phenolic content, and DPPH radical scavenging activity. Five appearance, nine aroma, six flavor/taste, and four mouth-feel related sensory attributes were evaluated by a panel of nine judges. As the result of three way analysis of variance of descriptive data, all sensory attributes except "cereal" aroma and "salty" taste showed significant differences among the beers (p<0.05). Based on the principal component analysis of the descriptive data, samples were primarily separated by first and second principal components, which accounted for 78% of the total variance between the beers with high intensities of "yellow color", "caramel aroma", and "barley taste" versus "hop aroma", "sour", and "citrus aroma". In the correlation analysis between the sensory terms and physicochemical parameters, BU, total phenolic content, titratable acidity, soluble solids, and yellowness ($b^*$) showed significant positive correlations with citrus aroma, pineapple aroma, and fresh aroma characteristics.

시판되는 상면발효맥주 12종에 대하여 5개의 외관, 9개의 향, 6개의 향미, 4개의 입안감촉에 대한 묘사용어를 개발하였으며, 묘사분석을 실시하였다. 실제 상면발효 맥주의 주요 특성으로 알려진 다양한 과일향미, 쓴맛과 관련 향미 용어가 개발되어 향후 상면발효맥주의 관능검사에 주요 평가 용어로 활용이 가능하리라 여겨진다. 또한 가용성 고형분, 총산도, pH, 환원당, 쓴맛 정도(B.U.), 탁도, 색도, 아미노산 함량, 총페놀함량과 DPPH 라디칼 소거능의 12가지 이화학특성을 분석하였다. 관능특성 항목과 맥주의 중요 지표인 이화학 특성간의 상관분석을 통해 B.U., 총폴리페놀 함량, 총산도, 황색도, 가용성 고형분이 에일맥주의 주요 관능특성인 시트러스향, 파인애플향, 쓴맛과 높은 상관관계를 보임을 확인할 수 있었다. 향후 이러한 이화학적 분석 항목은 제품 개발 시 관능특성 분석과 더불어 주요 품질지표 항목으로 활용이 가능하리라 여겨진다.

Keywords

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