Nephroprotective Effect from Rose Petals (Rosa damascena) Extract Against Cadmium Toxicity

Abstract The changes of aroma ingredients during the process of flower opening from Bulgarian rose were monitored by head space method and solvent extraction.W e also analyzed contents of glycosidic alcoholic aroma together with activities of the hydrolytic enzymes throughout the flower development and the opening. At flower petal opening time, the total amount of aromas in the head space gas reached the highest level. The concentration of citronellol was abundant in the head space gas at this stage, whereas the concentration o f 2-phenylethanol became higher than that of citronellol 4 hr after the opening stage. In the volatile extracts, higher accumulation was observed in 2-phenylethanol than those of monoterpenoids at this stage, and the content of the former still increased after flower opening. Glycosidic citronellol, geraniol, and other m onoterpenes started their accumulation ju st before flower opening stage and then reached the maximum level. The amount of these glycosidic compounds were less than those in the volatile extracts. In contrast to the monoterpenes, 2-phenylethyl glycosides accumulated in a higher level than in the volatile extracts starting at least 12 hr before the opening stage. The amount of the glycosidic precursors of 2-phenylethanol detected in the rose petals before flower opening always was higher than the amount of 2-phenylethanol which was released later. The decline of glycosidic 2-phenylethanol at flower opening stage may be due to partial enzymatic hydrolysis. Thereafter a drastic decline was observed, indicating that rapid enzymatic hydrolysis occurred during these stages.

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Therapeutic and Health Benefits of Rose Fixed Oil (Rowghan-E-Gol)

Traditional and Integrative Medicine ◽

10.18502/tim.v4i4.2143 ◽

2019 ◽

Author(s):

Mohaddese Mahboubi

Keyword(s):

Modern Medicine ◽

Sesame Oil ◽

Rosa Damascena ◽

Esophageal Reflux ◽

Traditional Medicines ◽

Inflammatory Conditions ◽

Rose Oil ◽

Inflammatory Bowel ◽

Rose Petals ◽

The Rose

Rose oil (Rowghan-E-Gol) is valuable fixed oil from macerating or boiling Rosa damascena petals in olive or sesame oils. There is difference between the rose oil and rose essential oil. The aim of this study was to evaluate the therapeutic applications of rose oil in modern and traditional medicines. The information of this article was extracted from books (traditional and modern ones) and electronic resources. The results showed that there are four methods for extracting the rose oil, but macerating the fresh rose petals in sesame oil is resulted to higher quality oil. Traditionally, rose oil is used orally or topically in management of ailments with pain and inflammatory conditions such as hemorrhoid, inflammatory bowel disease (IBD), earache, gastro-esophageal reflux diseases. In modern medicine, there are two clinical trials (topical oil) and one case report study (oral oil), which confirmed the efficacy of rose oil in backache of pregnancy, migraine headache and gastritis. Therefore, evaluating the potential of rose oil in treatment of hemorrhoid, IBD and gastrointestinal tract diseases should be performed in large clinical studies.

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Effect of new livestock feeds' phytonutrients on productivity, carcass composition and meat quality in pigs.

10.31220/osf.io/jfrvy ◽

2019 ◽

Author(s):

S.G. Ivanova ◽

J.L. Nakev ◽

T.I. Nikolova ◽

D.B. Vlahova-Vangelova ◽

D.K. Balev ◽

...

Keyword(s):

Growth Performance ◽

Meat Quality ◽

Nutrient Digestibility ◽

Carcass Composition ◽

Feed Consumption ◽

Control Group ◽

Histological Structure ◽

Rosa Damascena ◽

Rose Petals ◽

The Impact

Abstract Improving pig growth performance, nutrient digestibility and pork quality is a continual goal of the pig breeding. For this reason, an increasing interest in using phytonutrients has been observed recently. The objective of this study was to determine the impact of Larix sibirica dihydroquercetin or dry distilled Rosa damascena petals on growth performance, carcass composition, meat quality, blood characteristics and histological changes in ovaries and liver in native Danube White fattening pigs. A total of 120 pigs were used in the experiment with duration of 45 days prior to harvest. The pigs were divided into five groups. The control group (C) was fed basal diet. The other four experimental groups were fed with the same diets containing either 3.5 or 7.5 mg dihydroquercetin/kg/d and 0.255 or 0.545 g dry distilled rose petals/kg/d. The supplementations with dihydroquercetin or dry distilled rose petals increased average body weight by 7.74-9.05%, average daily gain by 27.06-30.13%, and feed to gain ratio by 12.53-15.99% and decreased feed consumption by 5.24-13.84% and average liver weight by 10.53-21.12% compared to the control group. Two supplementations didn't cause pathological changes in histological structure of pigs' liver and ovaries, and didn't influence pH values and proximate composition of m. Longissimus thoracis and m. Semimebranosus. No pH determined stress-induced muscle damage was found and the pork carcasses were classified in classes E and U. The two used supplements reduced the blood LDL cholesterol by 13.27-14.29% as well as increased erythrocytes, platelets, haematocrit, mean red blood cell count, mean haemoglobin concentration in erythrocytes, triglycerides and total cholesterol.

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Thin layer drying models, antioxidative activity and phenolic compounds of rose petals (Rosa damascena Mill.) in tray dryer

International Journal of Biology and Chemistry ◽

10.26577/ijbch-2019-i2-19 ◽

2019 ◽

Vol 12 (2) ◽

pp. 141-149

Author(s):

Nasim Pourebrahim ◽

◽

Amirhussein Elhamirad ◽

Soodabeh Einafshar ◽

Mohammad Armin ◽

...

Keyword(s):

Phenolic Compounds ◽

Thin Layer ◽

Antioxidative Activity ◽

Rosa Damascena ◽

Thin Layer Drying ◽

Drying Models ◽

Rose Petals ◽

Thin Layer Drying Models

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Enzyme-Assisted Extraction of Polyphenols From Rose (Rosa Damascena Mill.) Petals

Acta Universitatis Cibiniensis Series E Food Technology ◽

10.2478/aucft-2014-0015 ◽

2014 ◽

Vol 18 (2) ◽

pp. 65-72 ◽

Cited By ~ 2

Author(s):

Krasimira Kalcheva-Karadzhova ◽

Vasil Shikov ◽

Kiril Mihalev ◽

Georgi Dobrev ◽

Danka Ludneva ◽

...

Keyword(s):

Experimental Design ◽

Enzymatic Treatment ◽

Rosa Damascena ◽

Total Polyphenols ◽

Average Value ◽

Assisted Extraction ◽

Polyphenolic Antioxidants ◽

Total Anthocyanins ◽

Rose Petals ◽

Enzyme Assisted Extraction

Abstract : The efficiency of enzyme-assisted extraction for the recovery of polyphenols from rose (Rosa damascena Mill.) petals was evaluated performing a simplex centroid experimental design for mixture with three components (pectinolytic, cellulolytic and hemicellulolytic preparation). The ternary enzyme combinations leaded to the highest contents of total polyphenols, reaching 43% higher average value as compared to the control (without enzymatic treatment) sample. Enzymatic treatments also enhanced (9−25%) the extractability of total anthocyanins. The results obtained demonstrate that enzyme-assisted extraction improves the recovery of polyphenolic antioxidants from rose petals, especially using ternary enzyme combinations, comprising pectinolytic, cellulolytic and hemicellulolytic preparation.

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Immunomodulating pectic polysaccharides from waste rose petals of Rosa damascena Mill

International Journal of Biological Macromolecules ◽

10.1016/j.ijbiomac.2013.04.054 ◽

2013 ◽

Vol 59 ◽

pp. 192-200 ◽

Cited By ~ 17

Author(s):

Anton Slavov ◽

Hiroaki Kiyohara ◽

Haruki Yamada

Keyword(s):

Rosa Damascena ◽

Pectic Polysaccharides ◽

Rose Petals

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Evaluation of Essential Oils and Extracts of Rose Geranium and Rose Petals as Natural Preservatives in Terms of Toxicity, Antimicrobial, and Antiviral Activity

Pathogens ◽

10.3390/pathogens10040494 ◽

2021 ◽

Vol 10 (4) ◽

pp. 494

Author(s):

Chrysa Androutsopoulou ◽

Spyridoula D. Christopoulou ◽

Panagiotis Hahalis ◽

Chrysoula Kotsalou ◽

Fotini N. Lamari ◽

...

Keyword(s):

Antibacterial Activity ◽

Antifungal Activity ◽

Antiviral Activity ◽

Essential Oils ◽

Life Span ◽

Rosa Damascena ◽

E Coli ◽

Serovar Typhimurium ◽

Rose Petals ◽

Natural Preservatives

Essential oils (EOs) and extracts of rose geranium (Pelargonium graveolens) and petals of rose (Rosa damascena) have been fully characterized in terms of composition, safety, antimicrobial, and antiviral properties. They were analyzed against Escherichia coli, Salmonella enterica serovar Typhimurium, Staphylococcus aureus, Aspergillus niger, and Adenovirus 35. Their toxicity and life span were also determined. EO of P. graveolens (5%) did not retain any antibacterial activity (whereas at 100% it was greatly effective against E. coli), had antifungal activity against A. niger, and significant antiviral activity. Rose geranium extract (dilutions 25−90%) (v/v) had antifungal and antibacterial activity, especially against E. coli, and dose-dependent antiviral activity. Rose petals EO (5%) retains low inhibitory activity against S. aureus and S. Typhimurium growth (about 20−30%), antifungal activity, and antiviral activity for medium to low virus concentrations. Rose petals extract had significant antibacterial activity at dilutions of 25−90%, especially against E. coli and S. Typhimurium, antifungal, and the most potent antiviral activity. None of the EOs and extracts were toxic in dilutions of up to 5% and 90%, respectively. Finally, all materials had a life span of more than eight weeks. These results support the aspect that rose petals and rose geranium EOs, and extracts, have beneficial antimicrobial and antiviral properties and they can be used as natural preservatives.

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