Journals / Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi / 2020 / Cilt: 21 - Sayı: 2

In vitro antimicrobial, antioxidant activity and chemical characterization of Hypericum perforatum L. essential oil

Hypericum perforatum L. esansiyel yağının in vitro antimikrobiyal, antioksidan aktivite ve kimyasalkarakterizasyonu

Pages
330–339
Publication Date
2022-10-11
DOI
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

It was concluded that hexaneextract is more effective than ethanol extract against all bacterial and fungal strains.

📌 3 Key Takeaways

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Objective & Hypothesis:In vitro antimicrobial and antioxidant activities and chemical composition of extracts prepared usingtwo different solvents, hexane, ethanol, of commercially available essential oil sample isolated fromHypericum perforatum L. were determined.
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Key Findings & Data:The antioxidant activity ofthe 2% essential oil sample was also evaluated using 3 different methods and it was concluded that theoil sample's effectiveness of sweeping the DPPH radical was more effective than the other methodstested.
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Conclusion & Impact:It was concluded that hexaneextract is more effective than ethanol extract against all bacterial and fungal strains.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:Domain Parameters

Abstract

In vitro antimicrobial and antioxidant activities and chemical composition of extracts prepared usingtwo different solvents, hexane, ethanol, of commercially available essential oil sample isolated fromHypericum perforatum L. were determined. St. John's Wort essential oil was examined for variousbacteria and fungi by using disc diffusion method to test its antimicrobial effectiveness. The chemicalcontent of H. perforatum essential oil was determined by GC/MS method. It was concluded that hexaneextract is more effective than ethanol extract against all bacterial and fungal strains. St. John's Wort oilhad higher antimicrobial effects against fungi than bacteria. However, compared to standardantibiotics, activity is lower in the case of both ethanol and hexane extracts. The antioxidant activity ofthe 2% essential oil sample was also evaluated using 3 different methods and it was concluded that theoil sample's effectiveness of sweeping the DPPH radical was more effective than the other methodstested. With the chemical characterization as a result of GC/MS analysis 60 different compounds wereidentified including mainly carvacrol (4.78%), decane (8.15%), nonane (7.63%), p-cymene (9.04%),limonene (15.04%), α,p- dimethylstyrene (11.80%), camphor (4.21%), Isoborneol (%7.77) according totheir highest area (%).

Özet

Ticari olarak temin edilen Hypericum perforatum L.’den izole edilmiş olan esansiyel yağ örneğinin hekzan ve etanol olmak üzere iki farklı çözgen kullanılarak hazırlanan ekstraktlarının in vitroantimikrobiyal ve antioksidan aktiviteleri ve kimyasal kompozisyonu belirlendi. Sarı kantaron esansiyel yağı antimikrobiyal etkinliğinin test edilebilmesi amacıyla disk difüzyon yöntemi kullanılarak bazı bakteri ve mantar türlerine karşı incelendi. H. perforatum esansiyel yağının kimyasal içeriği ise GC/MS yöntemi ile belirlendi. Tüm bakteri ve mantar suşlarına karşı hekzan özütünün etanol ekstraktına nazaran daha etkili olduğunu sonucuna varıldı. Sarı kantaron yağı funguslara karşı bakterilerden daha yüksek antimikrobiyal etki gösterdi. Ancak standart antibiyotiklerle karşılaştırıldığında hem etanol hem de hekzan ekstraktları durumunda aktivite daha düşüktür. esansiyel yağ %2 oranındaki numunesinin antioksidan aktivitesi de 3 farklı yöntem kullanılarak değerlendirilmiş ve örneğinin DPPH radikalini süpürme etkinliğinin test edilen diğer metotlara göre daha etkili olduğu sonucuna ulaşıldı. Yapılan kimyasal karakterizasyon çalışmalarıyla GC/MS analizleri sonucunda alan değeri (%) en yüksek olan bileşikler başlıca %4.78 karvakrol, %8.15 dekan, %7.63 nonan, %9.04 p-simen, %15.04 limonen, %11.80 alpha-para-dimetilstiren, %4.21 kamfor ve %7.77 isoborneol olmak üzere 60 farklı bileşik tanımlandı

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Cite This Article

Ertürk, Ö., AYDIN, G., AYVAZ, M. Ç. (2022). In vitro antimicrobial, antioxidant activity and chemical characterization of Hypericum perforatum L. essential oil. Artvin Çoruh Üniversitesi Orman Fakültesi Dergisi, Cilt: 21 - Sayı: 2, 330–339. https://ajindex.com/articles/450608

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