Journal of Food Hygiene and Safety (한국식품위생안전성학회지)

The Korean Society of Food Hygiene and Safety (한국식품위생안전성학회)
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Antioxidant Components and Antioxidant Activities of Mealworm (Tenebrio molitor Larvae)

갈색거저리(Tenebrio molitor) 유충의 산화방지 성분 및 활성

  • Jin, Kyoung Nam (Department of Food Science and Technology, Jeonbuk National University) ;
  • Jeong, Eun-Jeong (Department of Food Science and Technology, Jeonbuk National University) ;
  • Kim, Yong-Suk (Department of Food Science and Technology, Jeonbuk National University)
  • Received : 2021.02.04
  • Accepted : 2021.02.10
  • Published : 2021.02.28
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Abstract

In order to utilize edible insect larvae as a functional material, the antioxidant components and activities of Tenebrio molitor larvae extracts were evaluated. The total phenolic content of the extract by ethanol concentration (95%, 70%, 50%, water) of T. molitor larvae powder was the highest in the 50% ethanol extract at 459.23 ± 1.05 mg%, and the total flavonoid content was the highest in the water extract at 19.86 ± 0.69 mg%. The DPPH radical scavenging activity of T. molitor larvae powder extract was the highest in 70% ethanol extract at 82.60 ± 0.00%, followed by water, 50% ethanol, and 95% ethanol extract. The ABTS radical scavenging activity in 50% ethanol and water extract was highest at 97.57 ± 0.16% and 95.33 ± 0.41%, respectively, with no significant difference. Significantly, the reducing power was the highest in water extracts, followed by 50%, 70%, and 95% ethanol extract. The results confirmed the antioxidant components and antioxidant activities of T. molitor larvae have been identified, indicating that it is worth using as a functional material.

식용곤충인 갈색거저리 유충을 기능성 소재로 활용하기 위하여 갈색거저리 유충 추출물의 산화방지 성분 및 활성을 확인하였다. 동결건조한 갈색거저리 유충 분말의 일반 성분은 수분함량 0.80 ± 0.06%, 조회분 3.29 ± 0.03%, 조단백질 54.07 ± 0.24%, 조지방 36.78 ± 0.66%이었다. 갈색거저리 유충 분말의 ethanol 농도별(95%, 70%, 50%, 물) 추출물의 총 phenolic compounds 함량은 50% ethanol 추출물에서 459.23 ± 1.05 mg/100 g으로 가장 높았으며, 총 flavonoid compounds 함량은 물 추출물에서 19.86 ± 0.69 mg/100 g으로 가장 높았다. 갈색거저리 유충 분말 추출물의 DPPH radical 소거 활성은 70% ethanol 추출물에서 82.60 ± 0.00%로 가장 높았으며, 물, 50% ethanol, 95% ethanol 추출물 순으로 높았다. ABTS radical 소거 활성은 50% ethanol 및 물 추출물에서 각각 97.57 ± 0.16%와 95.33 ± 0.41%로 높게 나타났으며, 유의적 차이는 없었다. 환원력의 경우 물 추출물에서 유의적으로 가장 높았으며, 50% ethanol, 70% ethanol, 95% ethanol 추출물 순이었다. 본 연구결과 갈색거저리 유충의 산화방지 성분의 함량이 많고 산화방지 활성을 우수함을 확인하였으며, 기능성 소재로서 활용할 가치가 있는 것으로 나타났다.

Keywords

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