Variation of the Chemical Properties of Rosehip (Rosa canina L.) Fruits According to Aspect Conditions

Öz

Abstract: This study aimed to investigate the chemical variation of volatile oil components in Rosa canina L. fruits based on different slope aspects and to assess the relationship between these variations and environmental conditions (temperature, precipitation, and soil properties). The research was conducted in Sarıveliler district of Karaman province, Turkey. Volatile components were isolated from fruit samples collected from four different slope aspects and analyzed using a Shimadzu 2010 Plus GC-MS device. Compound identification was performed by comparing the retention index (RI) and mass spectral (MS) data with those reported in the literature. Relationships among the components were evaluated using Pearson correlation analysis, while the spatial distribution of environmental variables was assessed using ArcGIS 10.8 software through the preparation of a soil map and the generation of temperature and precipitation maps via the Co-Kriging method. The results revealed that the composition and proportions of volatile oil components varied depending on slope aspect. (E)-2-Hexenal (52.21%) was the predominant compound in the east-facing slope, (E)-2-Hexenal (50.14%) in the north, Limonene (12.49%) in the west, and (E)-2-Hexenal (%15.60) in the south. According to chemical classification, aromatic alcohols, aromatic aldehydes, and monoterpene hydrocarbons were dominant in varying proportions. Correlation analysis indicated positive associations among terpenoid compounds, while negative correlations were found between certain oxygenated compounds and terpenoids. The study area was found to have an annual average temperature of 10–12 °C and annual precipitation of 600–800 mm, with calcareous-free brown forest soils providing a suitable habitat for the growth of Rosa canina.

Anahtar Kelimeler

• Rosa canina
• Aspect
• Volatile Compounds
• Karaman
• Turkey

Kuşburnu (Rosa canina L.) Meyvelerinin Kimyasal Özelliklerinin Bakı Koşullarına Göre Değişimi

Öz

Bu çalışma, Rosa canina L. meyvelerinin farklı bakı yönlerine göre uçucu yağ bileşenlerinin kimyasal varyasyonlarını ortaya koymak ve bu varyasyonların yetişme ortamı koşullarıyla (sıcaklık, yağış ve toprak özellikleri) ilişkisini değerlendirmek amacıyla yürütülmüştür. Çalışma, Türkiye’nin Karaman ili Sarıveliler ilçesinde gerçekleştirilmiştir. Uçucu bileşenlerin izolasyonu, dört farklı bakıdan toplanan meyve örneklerinden yapılmış ve analizler Shimadzu 2010 Plus GC-MS cihazı ile belirlenmiştir. Bileşen tanımlamaları, alıkonma indeksi (RI) ve kütle spektral (MS) verilerinin literatürle karşılaştırılması yoluyla yapılmıştır. Bileşenler arası ilişkiler Pearson korelasyon analizi ile değerlendirilmiş; çevresel koşulların mekânsal dağılımı ise ArcGIS 10.8 yazılımı kullanılarak oluşturulan toprak haritası ve Co-Kriging yöntemiyle üretilen sıcaklık ve yağış haritaları ile analiz edilmiştir. Analizler sonucunda, uçucu yağ bileşenlerinin hem bileşim hem de oran açısından bakıya bağlı farklılık gösterdiği belirlenmiştir. Doğu bakıda (E)-2-Hexenal (%52.21), kuzeyde (E)-2-Hexenal (%50.14), batıda Limonene (%12.49), güneyde ise (E)-2-Hexenal (%15.60) başlıca bileşenler olarak tespit edilmiştir. Bileşiklerin kimyasal sınıflandırmasına göre, aromatik alkoller, aromatik aldehitler ve monoterpen hidrokarbonlar farklı oranlarda öne çıkmıştır. Korelasyon analizinde, terpenoid bileşikler arasında pozitif ilişkiler gözlenirken, bazı oksijenli bileşikler ile terpenoidler arasında negatif korelasyonlar tespit edilmiştir. İncelenen alanda yıllık ortalama sıcaklığın 10–12 °C, yıllık yağış miktarının ise 600–800 mm arasında değiştiği ve bölgedeki kireçsiz kahverengi orman topraklarının Rosa canina için uygun bir yetişme ortamı sunduğu sonucuna ulaşılmıştır.

Anahtar Kelimeler

• Rosa canina
• Bakı
• Uçucu Bileşen
• Karaman
• Türkiye

Kaynakça

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