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Volatile Flavor Properties of Hallabong Grown in Open Field and Green House by GC/GC-MS and Sensory Evaluation

노지 및 시설에서 재배된 한라봉의 기기분석 및 관능평가에 의한 향기특성

  • Song, Hee-Sun (Dept. of Food & Nutrition and Bioindustry and technology Research Institute, Kwangju Health College) ;
  • Park, Yeon-Hee (Dept. of Food & Nutrition and Bioindustry and technology Research Institute, Kwangju Health College) ;
  • Moon, Doo-Gyung (National Institute of Subtropical Agriculture)
  • 송희순 (광주보건대학 식품영양과, 생명산업기술연구소) ;
  • 박연희 (광주보건대학 식품영양과, 생명산업기술연구소) ;
  • 문두경 (농촌진흥청 난지농업연구소)
  • Published : 2005.10.01

Abstract

Hallabong peel oils grown in open field and green house were extracted by hand-pressing flavedo and collected on ice. Volatile flavor components of Hallabong peel oils were identified and compared by using gas chromatography and mass- spectrometry. Forty-four flavor components were identified in open field oil and 45 flavor components in green house oil. (E) -Limonene-1,2-epoxide and neral were identified only in Hallabong oil grown in open field, on the other hand, $\beta$-cubebene, $\beta$-elemene and decyl acetate were detected only in green house oil. Limonene was the most abundant component in both oils as more than 86$\%$ of peak weight, followed by sabinene (1.8$\~$ 3.6$\%$) and myrcene (2.4$\~ $2.6$\%$). The difference of the volatile profile between open field and green house oils were significantly characterized by identification and quantity of alcohol group. The total alcohols in open field and green house oils accounted for 1.8$\%$ and 0.8$\%$, respectively. Among alcohols, the level of linalool was relatively high in open field oil (1.2$\%$), however, it accounted for 0.5$\%$ in green house oil. Flavor properties of fresh Hallabong peel and flesh were also examined by sensory evaluation. Flavor properties of fresh Hallabong grown in open field were relatively stronger on both peel and flesh by sensory analysis. Sweetness was strong in Hallabong flesh from open field, and sourness in that from green house. The sensory evaluation of the preference in consideration of taste and aroma was significantly high in Hallabong grown in open field (p<0.01). From the present study, the stronger flayer properties and the preference of Hallabong from open field by sensory evaluation seem to be associated with the high level of linalool in its peel oil, and the composition of monoterpene hydrocarbons such as sabinene and (E) -$\beta$ -ocimene.

노지 및 시설에서 재배된 한라봉의 과피에서 냉압착법에 의해 추출한 정유의 향기성분을 동정하였다. 노지에서 재배된 한라봉 정유에서 44개의 향기성분(99.7$\%$)이, 시설 한라봉 정유에서 45개의 성분(99.4$\%$)이 동정되었으며, (E)-lim-onene-1,2-epoxide와 neral은 노지 한라봉 정유에서만 동정되었고, $\beta$-cubebene, $\beta$-elemene, decyl acetate의 세 성분은 시설 한라봉 정유에서만 동정되었다. 노지 및 시설 한라봉 정유에서 동정된 향기성분 중 limonene이 86$\%$이상의 가장 높은 비율로 함유된 성분으로 확인되었으며, 그 다음으로 myrcene과 sabinene이 2$\%$이상으로 높게 함유된 것으로 확인되었다. 노지 및 시설 한라봉 정유의 향기성분 특성을 나타내는 가장 큰 차이는 linalool의 함유량으로 노지 한라봉 정유의 함유량(1.2$\%$)이 시설정유의 함유량(0.5$\%$)의 2배 이상으로 높았다. 향기 성분의 기기분석과 함께 신선한 한라봉 과육 및 과피의 관능평가를 실시하였다. 신선한 한라봉의 향기특성에 대한 관능평가 결과는 한라봉 과육 및 과피 모두에서 노지에서 재배된 한라봉이 시설에서 재배된 것에 비해 상대적으로 강한 향기특성을 지니는 것으로 평가되었다. 노지 한라봉 과육은 단맛이, 시설 한라봉 과육은 신맛이 유의적으로 높게 평가되었다. 또한, 향과 맛을 고려한 전체적 선호도에서도 노지에서 재배된 한라봉이 높게 평가되었다. (p<0.01).이러한 결과는 노지 한라봉 정유에서 유의적으로 높은 linalool의 함유율 및 재배방법의 영향을 받은 향기성분의 구성비율이 관능평가에 의한 과피 및 과육의 향기특성 결과에 영향을 주는 것으로 판단되었다.

Keywords

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