The Essential-Oil-Bearing Rose Collection Variability Study in Terms of Biochemical Parameters

Abstract

The primary task when breeding new varieties of essential-oil-bearing rose is to increase the essential oil content and quality. The purpose of the present research is to study the essential-oil-bearing rose collection variability in terms of the essential oil content and component composition and to identify opportunities for isolating the specimens promising for selection. The study of a collection of 112 specimens was carried out in 2017–2020 in the context of the piedmont of Crimea. The decanted essential oil content was determined using the hydrodistillation method. The component composition of rose essential oil was analyzed by gas chromatography on Crystal 5000.2. The essential oil components were identified by comparing their Kovats retention indices to the literature values. A high variability in the essential oil content in the collection (Cv = 36.3% at the average, over 4 years) and the major components content in the essential oil (Cv = 22.1–45.9%) was found. In the context of the piedmont of Crimea, the major components’ percentage content in essential oil from all the specimens including the five Bulgarian varieties did not meet the GOST ISO 9842-2017 standard requirements. This is indicative of a high-degree sensitivity to the soil and weather conditions in the region. It was found that the citronellol, geraniol, and nerol content in essential oil dropped significantly in extreme high temperature and drought conditions. Seven specimens rich in essential oil contained in the raw plant material (0.030–0.049%) and thirteen specimens with a high yield of concrete (0.31–0.39%) were identified and have been recommended for inclusion in the breeding process.

The investigation of thermal stability and GC-MS analysis of Acorus tatarinowii and Atractylodes lancea volatile oils treated by β cyclodextrin inclusion and Pickering emulsion technologies

“…Additionally, higher temperatures promote the evaporation rate of volatile oils, leading to their loss and a subsequent decrease in concentration [ 18 ]. At elevated temperatures, certain volatile oils may even undergo decomposition reactions, leading to changes in their molecular structure and the formation of unstable compounds [ 19 ]. Furthermore, temperature exerts a profound influence on the aroma components within essential oils, as high temperatures can induce their decomposition, volatilization, and loss.…”

Study on Cytotoxic and Genotoxic Potential of Bulgarian Rosa damascena Mill. and Rosa alba L. Hydrosols—In Vivo and In Vitro

“…The yield of both essential oil and hydrosol is influenced by many factors. Genotype, harvest time, geographical region [17], method of extraction, and storage are decisive [3,18,19]. During the harvesting process, hand picking must be followed [20].…”

Viral Infection Control in the Essential Oil-Bearing Rose Nursery: Collection Maintenance and Monitoring

“…The origin of the essential oil rose is associated with Iran and Syria [5,6]. Currently, the centres of cultivation of this crop are Bulgaria [7] and Turkey [8], it is also grown commercially in Saudi Arabia [9], Egypt [10], India [11], Russia [12], Georgia, China, Algeria, Spain, France, Italy and Morocco [2,13].…”