Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Physicochemical Characteristics of Garlic (Allium sativum L.) on the High Temperature and Pressure Treatment

고온고압처리에 따른 마늘(Allium sativum L.)의 이화학적 특성

  • Kwon, Oh-Chan (Department of Food Science and Technology, Chungbuk National University) ;
  • Woo, Koan-Sik (Department of Food Science and Technology, Chungbuk National University) ;
  • Kim, Tae-Myoung (College of Veterinary Medicine, Chungbuk National University) ;
  • Kim, Dae-Joong (College of Veterinary Medicine, Chungbuk National University) ;
  • Hong, Jin-Tae (College of Pharmacy, Chungbuk National University) ;
  • Jeong, Heon-Sang (Department of Food Science and Technology, Chungbuk National University)
  • Published : 2006.06.01
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Abstract

Effects of high temperature and pressure treatment on garlic (Allium sativum L.) treated at 110, 120, 130, 140, and $150^{\circ}C$ for 1, 2, 3, 4, and 5 hr were evaluated by investigating changes in antioxidant activities, and total polyphenol, total flavonoid, and 5-hydroxymethyl-2-furaldehyde (5-HMF) contents of garlic juice. Antioxidant activities, and total polyphenol, total flavonoid, and 5-HMF contents increased with increasing treated temperature and time. $IC_{50}$ (1.952 mg/g) was achieved at $150^{\circ}C$ for 4 hr, 50 times higher than untreated garlics. Highest total polyphenol content was 18.155 mg/g at $140^{\circ}C$ and 2 hr, seven times higher than untreated garlics. Highest total flavonoid content was $532.73\;{\mu}g/g$ at $150^{\circ}C$ and 1 hr, sixteen times higher than untreated garlics. 5-HMF content was highest (7,765.9 ppm) at $150^{\circ}C$ and 2 hr. Correlation coefficients among antioxidant activities, and total polyphenol, total flavonoid, and 5-HMF contents were very high (p<0.01).

고온고압처리 조건에 따른 마늘의 이화학적 특성의 변화와 유용성분 변화를 확인하기 위하여 고온고압처리온도(110, 120, 130, 140 및 $150^{\circ}C$)와 시간(1, 2, 3, 4 및 5 시간)을 변수로 처리한 후 DPPH assay에 항산화활성$(IC_{50})$, 총 폴리페놀 함량, 총 플라보노이드 함량 및 5-HMF를 측정하였고 이틀의 상관관계를 분석하였다. 마늘은 항산화활성$(IC_{50})$은 고온고압처리 온도와 시간의 증가에 따라 증가하였으며, $150^{\circ}C$, 4시간 처리구에서 1.95 mg/g으로 가장 낮아 생마늘에 비해 약 50배 이상 증가하였다. 총 폴리페놀 함량은 고온고압처리 온도와 시간의 증가에 따라 증가하였으며, $140^{\circ}C$, 2시간에서 $18.16{\pm}0.51\;mg/g$으로 생마늘에 비해 약 7배정도 증가하였다, 총 플라보노이드 함량도 고온고압처리 온도와 시간의 증가에 따라 증가하였으며, $150^{\circ}C$, 1시간에서 $532.73{\pm}18.79\;{\mu}g/g$으로 생마늘보다 약 16배 높은 함량을 나타내었다. 5-HMF 함량은 110 및 $120^{\circ}C$에서는 변화가 작았지만 $130^{\circ}C$에서는 고온고압처리 시간의 증가에 따라 급격한 증가를 보였고 $150^{\circ}C$, 2시간에서 $7,765.9{\pm}359.6\;ppm$로 가장 높은 함량을 나타내었다. 통계분석 결과 고온고압처리온도와 시간이 항산화성, 폴리페놀, 플라보노이드 및 5-HMF 함량에 유의적으로 영향을 미치며(p<0.001), 처리 시간보다 온도가 더 많은 영향을 미치는 것으로 나타났다. 또한 항산화성, 폴리페놀, 플라보노이드 및 5-HMF 함량 간의 상관관계도 높게 나타났다(p<0.01).

Keywords

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