A Descriptive Chemical Composition of Concentrated Bud Macerates through an Optimized SPE-HPLC-UV-MS2 Method—Application to Alnus glutinosa, Ribes nigrum, Rosa canina, Rosmarinus officinalis and Tilia tomentosa

Concentrated bud macerates (CBMs) are obtained from meristematic tissues such as buds and young shoots by maceration in a solvent composed of glycerin, water and ethanol (1/1/1/, v/v). Their traditional utilization in gemmotherapy has gained interest in the past years, and the knowledge of their chemical characterization can provide commercial arguments, particularly to secure their quality control. Therefore, an optimized method for phytochemical analysis including glycerol removal by a preliminary solid phase extraction (SPE) followed by compound identification using high performance liquid chromatography coupled with ultra-violet and tandem mass detectors (HPLC-UV-MS2) was developed. This method was applied on 5 CBMs obtained from Alnus glutinosa, Ribesnigrum, Rosmarinus officinalis, Rosa canina and Tilia tomentosa in order to determinate their chemical composition. Their antioxidant effects were also investigated by radical scavenging activity assays (DPPH and ORAC). Glycerol removal improved the resolution of HPLC chemical profiles and allowed us to perform TLC antioxidant screening. Our approach permitted the identification of 57 compounds distributed in eight major classes, three of them being common to all macerates including nucleosides, phenolic acids and glycosylated flavonoids. Quantification of the later class as a rutin equivalent (RE) showed a great disparity between Rosa canina macerate (809 mg RE/L), and the other ones (from 175 to 470 mg RE/L). DPPH and ORAC assays confirmed the great activity of Rosa canina (4857 and 6479 μmol TE/g of dry matter, respectively). Finally, phytochemical and antioxidant analysis of CBMs strengthened their phytomedicinal interest in the gemmotherapy field.

Effect of a Combination of Rosa canina Fruits and Apple Cider Vinegar against Hydrogen Peroxide-Induced Toxicity in Experimental Animal Models

Oxidative stress is the trigger of several diseases. It is an imbalance between the production of free radicals and antioxidants. This study aims to evaluate the antioxidant capacity and the protective property of Rosa canina fruits and apple cider vinegar combined or not against hydrogen peroxide (H2O2)-induced toxicity in Wistar rats. The experiment included five groups: group 1 received distilled water (10 mL/kg b.wt), group 2 received H2O2 10% (10 mL/kg b.wt), group 3 received H2O2 10% (10 mL/kg b.wt) and apple vinegar (2 mL/kg b.wt); group 4 received H2O2 10% (10 mL/kg b.wt) and apple vinegar supplemented with Rosa canina fruits extract (300 mg/kg b.wt); group 5 received H2O2 10% (10 mL/kg b.wt) and extract of Rosa canina fruits (300 mg/kg b.wt). The doses were given once daily via a gavage. The antioxidant capacity of apple vinegar and Rosa canina extract was analyzed, and AST, ALT, PAL, urea, and creatinine were determined on day 22 of the experiment. In addition, the kidney and the liver tissues were analyzed. The results showed that H2O2 caused a significant elevation of blood urea, blood creatinine, and transaminases. The histopathology examination revealed that H2O2 caused congestion, hemorrhage, and Bowman’s space enlarged. On the other hand, the results clearly showed that apple vinegar and Rosa canina fruits counterbalance the biochemical and histological changes induced by H2O2. In conclusion, the two natural products studied in this work are effective against the harmful effect of oxidative stress, which explains their use in traditional medicine.

Determination of the quantitative content of some groups of phenolic compounds in tinctures from the raw material of plant families Polygonaceae, Rosaceae, Asteraceae

Aim. To determine the quantitative content of total polyphenols and the amount of hydroxycinnamic acids in the series of tinctures from rhizomes with roots of Rumex confertus Willd., Sanguisorba officinalis L., roots of Rosa majalis Herrm., Rosa canina L., Arctium lappa L., Arctium minus (Hill) Bernh., Arctium tomentosum Mill., and the herb of Bidens tripartita L.Materials and methods. As study objects the tinctures from rhizomes with roots of Rumex confertus, Sanguisorba officinalis, roots of Rosa majalis, Rosa canina, Arctium lappa, Arctium minus, Arctium tomentosum and the herb of Bidens tripartita were used. These tinctures were obtained by the method of maceration at room temperature and the ratio of 1 : 5 of the plant raw material/finished products; the extractant was 50 % ethyl alcohol. The quantitative content of total polyphenols and the amount of hydroxycinnamic acids was determined by spectrophotometry according to the methods of the State Pharmacopoeia of Ukraine.Results and discussion. The limits of the quantitative content of total polyphenols and the amount of hydroxycinnamic acids in the tinctures were determined. They were not less than 0.070 mg mL-1 and 0.002 mg mL-1 for the tincture of rhizomes with roots of Rumex confertus, 0.100 mg mL-1 and 0.005 mg mL-1 for the tincture of rhizomes with roots of Sanguisorba officinalis, 0.070 mg mL-1 and 0.002 mg mL-1 for the tincture of Rosa majalis roots, 0.080 mg mL-1 and 0.001 mg mL-1 for the tincture of Rosa canina roots, 0.01 mg mL-1 and 0.001 mg mL-1 for the tincture of Arctium lappa roots, 0.010 mg mL-1 and 0.002 mg mL-1 for the tincture of Arctium minus roots, 0.001 mg mL-1 and 0.002 mg mL-1 for the tincture of Arctium tomentosum roots, 0.070 mg mL-1 and 0.001 mg mL-1 for the tincture of Bidens tripartita herb, respectively.Conclusions. The quantitative content of total polyphenols and the amount of hydroxycinnamic acids in tinctures from rhizomes with roots of Rumex confertus, Sanguisorba officinalis, roots of Rosa majalis, Rosa canina, Arctium lappa, Arctium minus, Arctium tomentosum and the herb of Bidens tripartita have been determined. The data obtained will be used in further work on the study of tinctures of these types of the plant raw material.

Description of Raphignathus arcus sp. nov. with notes on an abnormal female (Acari: Raphignathidae) from the Aegean region of Turkey

A new species viz. Raphignathus arcus sp. nov., collected from litter and soil under Cirsium vulgare (Asteraceae), Crataegus monogyna (Rosaceae), Hyparrhenia hirta (Poaceae), Juniperus oxycedrus (Cupressaceae), Olea europaea (Oleaceae), Quercus coccifera (Fagaceae), Rosa canina (Rosaceae) and Verbascum sp. (Scrophulariaceae) in Afyonkarahisar, Izmir and Manisa provinces (the Aegean region of Turkey), is illustrated and described based on the adult females. Notes on an abnormal female is also given.

COMPARISON OF BACTERIAL CELLULOSE PRODUCTION BY KOMAGATAEIBACTER INTERMEDIUS STRAIN USING LAVANDULA ANGUSTIFOLIA, ROSA CANINA AND TILIA CORDATA PLANTS AS LOW-COST MEDIA

In this study, the effects of Lavandula angustifolia, Tilia cordata and Rosa canina on cellulose production by Komagataeibacter intermedius strain were investigated. T. cordata was found as the most effective plant (10.64 g/L BC), under the following optimized conditions: 50 g/L plant amount, 8% lactose, 15% inoculum amount at pH=6.0. Total phenolic contents of L. angustifolia (55.42 mg/g), R. canina (16.54 mg/g) and T. cordata (60.03 mg/g), and total protein amounts of L. angustifolia (7.89 g/L), R. canina (3.54 g/L) and T. cordata (5.13 g/L) were analyzed. It has been established that phenolic and protein substances contribute significantly to cellulose formation. Physicochemical analysis showed that all the peaks obtained from FTIR analysis are distinguishable for BC and pellicles show high thermal stability. This research work is the first report on the usage of L. angustifolia, R. canina and T. cordata plants as low-cost substrates in BC production with high yields.

Optimization of preparation of rosehip tea from the area of Stara Planina Mt

Stara Planina Mt is rich in medicinal plants, that are natural sources of various bioactive substances and have many useful medicinal properties. Rosehip, the fruit of wild rose (Rosa canina L.) is very popular and widely used. There is extensive empirical evidence of its therapeutic effects. The high content of vitamins, organic acids, phenolic compounds, carotenoids and pleasant taste define it as a valuable dietary supplement. There are different procedures for making rosehip teas. In this paper, we have optimized the process of preparation of rosehip tea from the aspect of maximum extraction and preservation of vitamin C content in tea. The antioxidant activity of aqueous extracts of rosehips, depending on the extraction time and the temperature at which the extraction is performed, was also examined..The free radical scavenging activity of the plant extracts was analyzed by using the 2.2-diphenyl-1-picrylhydrazyl (DPPH) assay. Optimal conditions are 30 minutes and a temperature of 40 °С. In this way, vitamin C is best extracted and its stability is preserved, which results in the high antioxidant activity of the tested teas.

Molecular Authentication, Phytochemical Evaluation and Asexual Propagation of Wild-Growing Rosa canina L. (Rosaceae) Genotypes of Northern Greece for Sustainable Exploitation

Dogroses belong to a taxonomically difficult genus and family and represent important phytogenetic resources associated with high ornamental, pharmaceutical-cosmetic and nutritional values, thus suggesting a potentially high exploitation merit. Triggered by these prospects, wild-growing Rosa canina populations of Greece were selected for investigation and evaluation of their potential for integrated domestication. We collected ripe rosehips from Greek native wild-growing populations (samples from seven genotypes) for phytochemical analysis (total phenolics, total flavonoids, antioxidant activity and vitamin C content), leaf samples for DNA analysis using the ITS2 sequence (nine genotypes) and fresh soft-wood stem cuttings for propagation trials (seven genotypes). After evaluation of these materials, this study reports for the first-time distinct DNA-fingerprinted genotypes from Greece with interesting phytochemical profiles mainly in terms of Vitamic C content (up to 500.22 ± 0.15 mg of ascorbic acid equivalents/100 g of sample) as well as effective asexual propagation protocols for prioritized R. canina genotypes via cuttings. The latter highlights the importance of the levels of external hormone application (2000 ppm of indole-3-butyric acid), the effect of season (highly-effective spring trials) and genotype-specific differences in rooting capacities of the studied genotypes. All inclusive, this study offers new artificially selected material of Greek native R. canina with a consolidated identity and interesting phytochemical profile. These materials are currently under ex-situ conservation for further evaluation and characterization in pilot field studies, thus facilitating its sustainable exploitation for applications in the agro-alimentary, medicinal-cosmetic, and ornamental sectors.

Valorization of Rose Hip (Rosa canina) Puree Co-Product in Enriched Corn Extrudates

Serious issues and challenges of the world’s population are represented by dwindling natural food resources and the scale-up of sustainable food manufacturing. Therefore, the valorization of co-products from the food industry represents new methods for food development. The principal goal of the study was to capitalize rose hip (Rosa canina) co-product powder in extrudates, highlighting its influence on extrusion parameters, physicochemical, and nutritional characteristics. The water absorption index, swelling index, and hygroscopicity increased with the rose hip co-product addition. Furthermore, water solubility index, expansion index, porosity, image parameters (area and perimeter) of the extrudates decreased. Lycopene, β-Carotene, Zea-esters, and lutein were the main carotenoids identified in the extrudates; whereas Catechin, Di-gallic acid, Procyanidin dimmer 1, Procyanidin dimmer 2, and Isorhamnetin-glucuronide were the main flavonoids. Strong Pearson correlations were identified between carotenoids, total flavonoids, vitamin C, total folate, and antioxidant activity. Valorization of the Rosa canina powder co-product led to value-added products—corn extrudates—rich in bioactive compounds.