Journals / International Journal of Secondary Metabolite / 2026 / Volume: 13 Issue: 1

Determination of essential oil composition of Laurencia obtusa and Ceramium spp. in Black Sea and antileishmanial activity

Seda Fandaklı(ARTVİN ÇORUH ÜNİVERSİTESİ, SAĞLIK HİZMETLERİ MESLEK YÜKSEKOKULU)0000-0002-8199-3336
Ulku Karaman(ORDU ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0001-7027-1613
Şahin Direkel(MALATYA TURGUT ÖZAL ÜNİVERSİTESİ, TIP FAKÜLTESİ)0000-0003-3368-0447
Pages
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Publication Date
2026-03-09
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AI Summary & Key Takeaways

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⚡ TL;DR(Too Long; Didn't Read)

Dichloromethane and chloroform extracts of both species exhibited greater antileishmanial activity compared to methanol and hexane extracts, indicating their higher potential as antileishmanial agents.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:In this study, the chemical compositions of volatile oils obtained via Clevenger distillation from red algae species Laurencia obtusa and Ceramium spp., collected from the coastal areas of Sinop (Black Sea), were analyzed by GC/MS.
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Key Findings & Data:As a result, 80.92% and 90.51% of the volatile oil compositions of Laurencia obtusa and Ceramium spp. were identified, respectively, with 20 compounds characterized in each species.
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Conclusion & Impact:Dichloromethane and chloroform extracts of both species exhibited greater antileishmanial activity compared to methanol and hexane extracts, indicating their higher potential as antileishmanial agents.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Laurencia obtusa · Ceramium spp. · GC-MS

Abstract

In this study, the chemical compositions of volatile oils obtained via Clevenger distillation from red algae species Laurencia obtusa and Ceramium spp., collected from the coastal areas of Sinop (Black Sea), were analyzed by GC/MS. Additionally, hexane, dichloromethane, chloroform, and methanol extracts were prepared using the Soxhlet extraction method, and their antileishmanial activities were evaluated. As a result, 80.92% and 90.51% of the volatile oil compositions of Laurencia obtusa and Ceramium spp. were identified, respectively, with 20 compounds characterized in each species. Hydrocarbons were the predominant compound class in the essential oils of Laurencia obtusa (79.31%) and Ceramium spp. (72.89%). The leishmanicidal activities of the solvent extracts were tested in vitro against Leishmania infantum promastigotes. The minimum inhibitory concentration (MIC) values for Laurencia obtusa extracts in hexane, dichloromethane, chloroform, and methanol were 5, 2.5, 2.5, and 10 mg/mL, respectively. For Ceramium spp., the MIC values were 2.5, 2.5, 2.5, and 10 mg/mL, respectively. Dichloromethane and chloroform extracts of both species exhibited greater antileishmanial activity compared to methanol and hexane extracts, indicating their higher potential as antileishmanial agents.

Özet

In this study, the chemical compositions of volatile oils obtained via Clevenger distillation from red algae species Laurencia obtusa and Ceramium spp., collected from the coastal areas of Sinop (Black Sea), were analyzed by GC/MS. Additionally, hexane, dichloromethane, chloroform, and methanol extracts were prepared using the Soxhlet extraction method, and their antileishmanial activities were evaluated. As a result, 80.92% and 90.51% of the volatile oil compositions of Laurencia obtusa and Ceramium spp. were identified, respectively, with 20 compounds characterized in each species. Hydrocarbons were the predominant compound class in the essential oils of Laurencia obtusa (79.31%) and Ceramium spp. (72.89%). The leishmanicidal activities of the solvent extracts were tested in vitro against Leishmania infantum promastigotes. The minimum inhibitory concentration (MIC) values for Laurencia obtusa extracts in hexane, dichloromethane, chloroform, and methanol were 5, 2.5, 2.5, and 10 mg/mL, respectively. For Ceramium spp., the MIC values were 2.5, 2.5, 2.5, and 10 mg/mL, respectively. Dichloromethane and chloroform extracts of both species exhibited greater antileishmanial activity compared to methanol and hexane extracts, indicating their higher potential as antileishmanial agents.

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Cite This Article

Yücel, T. B., Fandaklı, S., Karaman, U., Direkel, Ş. (2026). Determination of essential oil composition of Laurencia obtusa and Ceramium spp. in Black Sea and antileishmanial activity. International Journal of Secondary Metabolite, Volume: 13 Issue: 1. https://doi.org/10.21448/ijsm.1590824

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