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rose hip oil

Renata V Contri, Irene C Kulkamp-Guerreiro, Sheila Janine da Silva, Luiza A Frank, Adriana R Pohlmann, Silvia S Guterres
The rose-hip oil holds skin regenerating properties with applications in the dermatological and cosmetic area. Its nanoencapsulation might favor the oil stability and its incorporation into hydrophilic formulations, besides increasing the contact with the skin and prolonging its effect. The aim of the present investigation was to develop suitable rose-hip-oil-loaded nanocapsules, to verify the nanocapsule effect on the UV-induced oxidation of the oil and to obtain topical formulations by the incorporation of the nanocapsules into chitosan gel and film...
August 2016: AAPS PharmSciTech
Magdalena Grajzer, Anna Prescha, Katarzyna Korzonek, Anna Wojakowska, Mariusz Dziadas, Anna Kulma, Halina Grajeta
Two new commercially available high linolenic oils, pressed at low temperature from rose hip seeds, were characterised for their composition, quality and DPPH radical scavenging activity. The oxidative stability of oils was assessed using differential scanning calorimetry (DSC). Phytosterols, tocopherols and carotenoids contents were up to 6485.4; 1124.7; and 107.7 mg/kg, respectively. Phenolic compounds determined for the first time in rose hip oil totalled up to 783.55 μg/kg, with a predominant presence of p-coumaric acid methyl ester...
December 1, 2015: Food Chemistry
Anna Prescha, Magdalena Grajzer, Martyna Dedyk, Halina Grajeta
In our study, we characterized the antioxidant activity and oxidative stability of cold-pressed macadamia, avocado, sesame, safflower, pumpkin, rose hip, Linola, flaxseed, walnut, hempseed, poppy, and milk thistle oils. The radical scavenging activity of the non-fractionated fresh oil, as well as the lipophilic and hydrophilic fractions of the oil was determined using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. The fatty acid composition of the fresh and stored oils was analyzed by gas chromatography. The acid value, peroxide value, p-anisidine value and conjugated diene and triene contents in the fresh oils, as well as in those stored throughout the whole period of their shelf life, were measured by CEN ISO methods...
2014: Journal of the American Oil Chemists' Society
Wojciech Ostrowski, Anna Wojakowska, Magdalena Grajzer, Maciej Stobiecki
Liquid chromatography coupled to mass spectrometry (MS) with electrospray ionization (ESI) is one of analytical techniques to obtain accurate results of low molecular weight aromatic compounds in biological samples of different origin. The interpretations of mass spectra of these aromatic compounds in the negative spectra registered in the full scan MS mode may be uneasy due to presence of deprotonated molecules [M-H](-) from different co-eluting entities, fragment ions created after the break-up of precursor ions and also ions representing modified molecules clusters...
September 15, 2014: Journal of Chromatography. B, Analytical Technologies in the Biomedical and Life Sciences
Matthias Fromm, Sandra Bayha, Dietmar R Kammerer, Reinhold Carle
Seed oils recovered from Rosaceae species such as dessert and cider apples (Malus domestica Borkh.), quince (Cydonia oblonga Mill.), and rose hip (Rosa canina L.) were analyzed for their tocopherol and carotenoid contents using HPLC-DAD-MS(n) following saponification. Qualitative and quantitative tocopherol and carotenoid compositions significantly differed, not only among the different genera but also among cultivars of one species. In particular, seed oils of cider apples were shown to contain higher amounts of both antioxidant classes than that of dessert apples...
October 31, 2012: Journal of Agricultural and Food Chemistry
D Fritsch, T A Allen, C E Dodd, D E Jewell, K A Sixby, P S Leventhal, K A Hahn
BACKGROUND: Food supplemented with fish oil improves clinical signs and weight bearing in dogs with osteoarthritis (OA). OBJECTIVE: Determine whether increasing the amount of fish oil in food provides additional symptomatic improvements in OA. ANIMALS: One hundred and seventy-seven client-owned dogs with stable chronic OA of the hip or stifle. METHODS: Prospective, randomized clinical trial using pet dogs. Dogs were randomly assigned to receive the baseline therapeutic food (0...
September 2010: Journal of Veterinary Internal Medicine
Cosima Chrubasik, Basil D Roufogalis, Ulf Müller-Ladner, Sigrun Chrubasik
Rose hip, rose hip and seed and rose hip seed, all were negatively monographed by the German Commission E due to insufficient evidence of effects and effectiveness. Therefore a comprehensive review of the literature was conducted to summarize the pharmacological and clinical effects of Rosa canina L. to reevaluate its usefulness in traditional medicine. For various preparations of rose hip and rose hip and seed, antioxidative and antiinflammatory effects have been demonstrated. Lipophilic constituents are involved in those mechanisms of action...
June 2008: Phytotherapy Research: PTR
D Sankar, M Ramakrishna Rao, G Sambandam, K V Pugalendi
The objective of this study was to investigate the effect of sesame oil in hypertensive diabetics medicated with atenolol (beta-blocker) and glibenclamide (sulfonylurea). This open label trial with two intervention periods comprised 22 male and 18 female patients, 45-65 years old, with mild to moderate hypertension and diabetes. Sesame oil (Idhayam Gingelly oil, V.V.V. & Sons, Virudhunagar, Tamilnadu, India) was supplied to the patients, who were instructed to use it in place of other cooking oils for 45 days...
2006: Journal of Medicinal Food
Klára Szentmihályi, Péter Vinkler, Béla Lakatos, Vendel Illés, Mária Then
From the rose hip seed, which is generally a waste material, valuable oil can be obtained for medicinal use. Various extraction methods have been compared: traditional solvent extraction with ultrasound-, microwave-, sub- and supercritical fluid extraction (SFE). Unsaturated fatty acid (UFA: oleic-, linoleic- and linolenic acid; 16.25-22.11%, 35.94-54.75%, 20.29-26.48%) and polyunsaturated fatty acid (PUFA:linoleic- and linolenic acid) content were over 90% and 60% in the recovered oils. The oils contained different amounts of metals...
April 2002: Bioresource Technology
I González, M Escobar, P Olivera
Plasma lipids of male golden Syrian hamsters fed diets supplemented with 15% (w/w) rose hip, sunflower, olive, or coconut oils during four weeks were assessed. The results confirm the saturated fat hyperlipidemic effect on golden Syrian hamsters fed with the olive oil and coconut oil, reaching the highest triglyceride levels. The monounsaturated (olive oil) or polyunsaturated (rose hip and sunflower oils) fatty acid-rich-vegetable oils have a similar action on the HDL-cholesterol. No statistically significant difference was observed for total cholesterol, HDL-cholesterol and triglyceride plasma levels in the rose hip and sunflower groups, showing that the polyunsaturation degree of both oils does not affect those results...
June 1997: Revista Española de Fisiología
I González Barra, M Escobar, M Villarroel Guerra
Male Hamsters (Mesocricetus aureatus) were fed standardized diets with 15% Rose hip, Sunflower, Olive or Coconut oil for four weeks, in order to determine the influence of vegetable oils with different degree of unsaturation over the intestinal absorption of glucose. The concentration of glucose in the serosal solution at 20, 40 and 60 minutes, was quantified in pieces of everted intestine of each animal, after the feeding period was over. A lower concentration of glucose was observed in the Olive group, although it was statistically significant only when compared to the Rose hip and Coconut oil group (P < 0...
December 1995: Archivos Latinoamericanos de Nutrición
M Lutz, M Torres, P Carreño, I González
The comparative effects of dietary level and time of feeding corn (CO) and rose hip (RHO) oils on bile and plasma lipid composition were studied. 48 males Sprague Dawley rats were divided in two groups fed semipurified diets containing CO or RHO as the only lipid source. Groups of 6 rats were fed ad libitum diets containing 5% or 15% vegetable oil during 15 or 60 days. Food intake was not dependent on the type of oil, and was higher in 15% oil diets (p < 0.01), increasing with time of feeding (p < 0.001)...
March 1993: Archivos Latinoamericanos de Nutrición
G P Shabykin, A I Godorazhi
No abstract text is available yet for this article.
April 1967: Vestnik Dermatologii i Venerologii
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