Nijerya ve Kamerun'daki Isolona Engl. (Annonaceae) bitkisinin karşılaştırmalı GC-MS analizi

Abstract

Nijerya ve Kamerun'da bulunan altı (6) Isolona türünün GC-MS analizi kullanılarak karşılaştırmalı değerlendirmeleri yapılmıştır. Analiz metanol özütü ile gerçekleştirildi ve yüz yetmiş altı (176) fito-bileşen tanımlandı ve I heksaloba'da 3.22 dakika ile I. campanulata'da 34.56 dakika arasında değişen farklı alıkonma sürelerinde tanımlanmaları gerçekleştirildi. Öne çıkan bileşikler karboksilik ve türevleri olur iken, en az tepit edilen bileşikler alkinlerde tanımlandı. En yüksek M.wt. 34.52 dakikalık alıkonma zamanında I. congolana'da 741.5 olarak ölçülürken, düşük M.wt. değeri 84.15 ile 3.44 dk alıkonma süresinde I. thonneri'de tespit edildi. Heksadekanoik asit, metil ester formülü C17H34O2 ve 270.4 M.wt olarak değerlendirilen bileşik, altı türün tamamında tespit edildi ve Isolona cinsi için bir tanısal karakter önerildi. Kantitatif olarak, tüm türlerde izole edilen analit miktarı, I. hexaloba'da %0.1 ile I. thonneri'de %59.36'ya kadar değişim gösterdi. Farklı kimyasal bileşenlere dayalı olarak Isolona türleri arasındaki ilişkileri göstermek için RMSD ve Öklid indeksi ile iki UPGMA ağacı oluşturuldu. Oluşturulan ağaç, I. thonneri'nin diğer tüm türlerden ayrıldığını ortaya çıkarmış, ayrıca I. hexaloba, I. campanulata ve I. zenkeri'nin bir alt ağaç oluşturduğu görüldü. En yüksek uzaklık değeri I. thonneri ve I. congolana arasında 9.576 olarak puanır iken, en yüksek benzerlik düzeyi I. hexaloba ve I. campanulata'da 2.911 puan almıştır. Örtüşen fito-bileşen karakterleri, incelenen taksonların yakınlığını ortaya çıkardı, bu durum her cinsteki ve nihayetinde Annonaceae familyasındaki mevcut verileri güncellenmesine neden olacaktır.

Keywords

• Karşılaştırmalı analiz
• GC_MS
• Isolona
• Fitbileşenler

Comparative analysis of GC-MS of Isolona Engl. (Annonaceae) in Nigeria and the Cameroons

Abstract

The comparative assessment of six (6) Isolona species occurring in Nigeria and the Cameroons was undertaking using GC-MS analysis. The analysis was carried out with methanol extract and one hundred and seventy-six (176) phyto-constituents identified and scored at different retention times ranges from 3.22min in I. hexaloba (Pierre) Engl. & Diels. to 34.56min in I. campanulata Engl. & Diels.. The prominent compounds were scored in carboxylic and its derivates while the least compound was identified in alkyne. Highest M.wt. was 741.5 in I. congolana (De Wild.&T.Durand) Engl. & Diels. at retention time of 34.52 min and the lowest M.wt. was 84.15 in I. thonneri (De Wild.&T.Durand) Engl. & Diels. at retention time 3.44 min. Hexadecanoic acid, methyl ester formula C17H34O2 and M.wt of 270.4 was scored in all the six species suggested a diagnostic characters for the genus Isolona. Quantitatively, the amount of the analytes isolated in all the species ranges from 0.1% in I. hexaloba to 59.36% in I. thonneri. Two UPGMA distant trees were constructed with RMSD and Euclidean index to illustrate the relationships among the Isolona species based on the difference chemical constituents. The distance tree revealed the separation of I. thonneri from all other species, also a sub-cluster tree of I. hexaloba, I. campanulata and I. zenkeri (Engl.) Dyer. was also constructed. The highest distance value level is 9.576 scored between I. thonneri and I. congolana while the highest similarity level was 2.911 scored in I. hexaloba and I. campanulata. The overlapping phyto-constituents characters revealed the closeness of the taxa studied, this invariably will update the existing data in the genus and ultimately in the family Annonaceae.

Keywords

• Isolona
• GC-MS
• Comparative analysis
• Phyto-constituents

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