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Physicochemical characteristics of domestic garlic by varieties and their quality changes during aging of black garlic

품종별 마늘의 품질 특성 및 흑마늘 숙성 중 품질 변화

  • Received : 2023.02.27
  • Accepted : 2023.06.19
  • Published : 2023.06.30

Abstract

In this study, the quality characteristics of the representative domestic garlic varieties in Korea (Namdo, Daeseo, Hongsan, and Uiseong garlic) were compared and their changes according to the aging process of black garlic were investigated. Each garlic sample was aged for 15 days according to the manufacturing process of black garlic. The total phenolic compound contents were 85.2-109.7 mg GAE/100 g in raw garlic samples, which increased with the aging period, and Hongsan garlic showed the highest content in both raw and aged black garlic. The content of alliin was 848.3-1,087.5 mg/100 g in raw garlic samples, and it decreased significantly on the 5th day (7.3-20.6 mg/100 g) in aged garlic. The contents of GSAC (γ-glutamyl-S-allyl-cysteine) and GS1PC (γ-glutamyl-S-1-propenyl-l-cysteine) in raw garlic samples were 202.1-541.0 mg/100 g and 311.1-474.3 mg/100 g, respectively, but gradually decreased during the aging process. On the other hand, the SAC (S-allyl-cysteine) and S1PC (S-1-propenyll-cysteine) contents of raw garlic were very low in all four varieties, but they were highest on the 5th day of aging and tended to decrease thereafter. On the 5th day of aging, the SAC content of Namdo garlic (208.0 mg/100 g) was highest (p<0.05), and S1PC content was significantly higher in Uiseong garlic (66.2 mg/100 g) than the others.

우리나라 대표적인 남도, 대서, 홍산과 의성 마늘의 품질특성을 비교하고 각각의 마늘을 흑마늘로 숙성하면서 유효물질의 변화를 조사하였다. 흑마늘은 60-80℃의 범위에서 15일간 숙성하면서 5일 단위로 시료를 취하였다. 총페놀화합물은 생마늘에서 85.2-109.7 mg GAE/100 g이던 것이 숙성기간이 증가함에 따라 증가하였고, 생마늘과 제조된 흑마늘 모두 홍산마늘이 가장 높았다. 알린 함량은 생마늘에서 848.3-1,087.5 mg/100 g이던 것이 숙성 5일에 7.3-20.6 mg/100 g으로 유의하게 감소한 후 더 감소하였다. 생마늘의 GSAC(γ-glutamyl-S-allyl-cysteine)와 GS1PC (γ-glutamyl-S-1-Propenyl-l-Cysteine) 함량은 202.1-541.0 mg/100 g, 311.1-474.3 mg/100 g이었으며 숙성 동안 점차 감소하였다. 한편, SAC(S-allyl-cysteine) 및 S1PC (S-1-Propenyl-l-Cysteine) 함량은 4종 모두 생마늘일 때 매우 낮았으나 숙성 5일 차에 크게 증가한 후 감소하는 경향을 보였다. 숙성 5일째 SAC 함량은 남도마늘이 208.0 mg/100 g으로 다른 시료에 비해 유의적으로 높았고, S1PC는 의성마늘이 66.2 mg/100 g으로 유의적으로 높았다. 이는 생마늘에서 SAC 및 S1PC의 전구물질인 GSAC와 GS1PC가 높았던 시료가 흑마늘 숙성 후에도 높은 경향이었다. 따라서 마늘은 품종에 따라 유효물질의 함량에 차이가 있고 숙성 후의 주요 화합물의 변화에도 유의적인 차이가 있을 것으로 추측되어 향후 기능성 식품 연구의 기초자료로 활용될 것으로 판단된다.

Keywords

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