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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2022.11
- 수록면
- 579 - 586 (8page)
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이 논문의 연구 히스토리 (2)
2022
Antioxidant, anti-inflammatory, and antibacterial activities of a 70% ethanol-Symphyocladia linearis extract
Jeong Min Lee
,
Mi-Jin Yim
,
Hyun-Soo Kim
외 5명
Fisheries and Aquatic Sciences
2022.11
학술저널
Anti-oxidant, Anti-inflammatory and Antibacterial Activities of a 70% EtOH Symphyocladia linearis extract
Jeong Min Lee
,
Mi-Jin Yim
,
Hyun-Soo Kim
외 5명
한국식품영양과학회 학술대회발표집
2022.10
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Research on the potential biological activity of red alga Symphyocladia spp. has been limited to Symphyocladia latiuscula, which is widely used as a food ingredient in Korea. Here, we examined the biological activity of another species, Symphyocladia linearis, which is found in Korea and was reported as a new species in 2013. The aim of this study was to evaluate the antioxidant, anti-inflammatory, and antibacterial properties of a 70% ethanol extract of S. linearis. Antioxidant activity, which was evaluated using radical scavenging assays, revealed half maximal inhibitory concentration values for 2,2-diphenyl-1-picryl-hydrazyl-hydrate (DPPH) and 2,2’-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid (ABTS) of 34.57 and 11.70 μg/mL algal extract, respectively.
Anti-inflammatory activity of the S. linearis ethanolic extract was evaluated using RAW 264.7 cells by measuring the inhibition of lipopolysaccharide-induced nitric oxide (NO) and prostaglandin E2 (PGE2) production. The potential cytotoxicity of NO and PGE2 was first examined, confirming no toxicity at concentrations ranging from 10–100 μg/mL. NO production was inhibited 61.1% and 78.0% at 50 and 100 μg/mL S. linearis extract, respectively; and PGE2 production was inhibited 69.1%, 83.2%, and 94.8% at 25, 50, and 100 μg/mL S. linearis extract, respectively. Thus, the S. linearis extract showed very strong efficacy against PGE2 production. The cellular production of reactive oxygen species, measured using 2’,7’-dichlorofluorescin diacetate fluorescence, was inhibited 48.8% by the addition of 100 μg/mL S. linearis extract. Antibacterial activity was evaluated using the disc diffusion method and minimum inhibitory concentration (MIC). S. linearis was effective only against gram-positive bacteria, exhibiting antibacterial activity against Staphylococcus aureus with a MIC of 256 μg/mL extract and against Bacillus cereus with a MIC of 1,024 μg/mL extract. Based on these results, we infer that a 70% ethanolic extract of S. linearis possesses strong anti-inflammatory properties, and therefore has the potential to be used in the prevention and treatment of inflammatory and immune diseases.
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