Analysis oftrans-resveratrol in oilseeds by high-performance liquid chromatography

Abstract

Oilseeds are very popular edibles that are often used to enhance the fibre content of baked goods, and specific types are used for preserving and seasoning. Polyphenol-related researches have been receiving growing attention in the last 20 years, especially the ones concentrating on stilbenoids. In previous studies, resveratrol concentrations have been determined from oilseeds such as peanut.The aim of our research was to define the composition of oilseeds with a focus on the bioactive compounds, more specifically the resveratrol.Research took place in 2010-2011 at the University of Pécs, Medical School, using non-random, convenience sampling. Oilseeds studied in the research were: sunflower seed, roasted peanut, un-roasted peanut, sesame seed, pumpkin seed, almond, linseed, bio white mustard seed, bio black mustard seed, mustard seed of foreign provenance, and wild black mustard seed. All of these oilseeds can be purchased from trade. Samples used in the research were obtained from the producers and collectors. High Performance Liquid Chromatography (HPLC) was used for the measurements.Summarising our results, it can be stated that each type of oilseed analysed in our research can be regarded as good sources of resveratrol. The highest level of resveratrol was detected in the sunflower seeds (0.00398±0.0001 mg g , and wild black mustard seeds (0.0023±0.0007 mg g -1 ).

Prevalence and impact of metabolic syndrome on outcomes of acute coronary syndrome patients in two different countries

“…Oleuropein is reported to have a number of biological activities including antidyslipidemic, antiobesity, antidiabetic, antioxidant, antiatherogenic, antihypertensive, antiinflammatory, and hepatoprotective properties. The scientific evidence supports the role of oleuropein as a potential agent against metabolic syndrome [30,31]. Unhealthy lifestyles, like consuming small amounts of extra virgin olive oil instead of more saturated fatty acid, a sedentary lifestyle, too much stress, etc.…”

“…A significant majority of the participants met at least one criterion of metabolic syndrome, so it is important to draw further attention to metabolic syndrome not only among ACS patients but also in primary prevention. Studies provided evidence supporting the beneficial role of the traditional Mediterranean diet in preventing diabetes and MetS [6,7,31].…”

Concepts and principles for new rapid simple liquid chromatography method for quantification of antioxidants resveratrol, vitamin E, and coenzyme Q10 in capsules with high‐performance liquid chromatography with a photo‐diode array detector

“…There are numerous analytical quantification methods for RSV, Vit E, and Q10 available on scientific resources. All of these methods describe separate methods for only one of them, even the rare articles mentioning samples containing 2 of 3 analytes, described alternative separation methods determinations [6–38]. All three molecules, analytes, RSV, Q10, and Vit E are not ionogenic in physiological circumstances, without easily dissociating groups and without N‐atoms in their structure.…”

Effects of aging in oak barrels on the trans-resveratrol and anthocyanin concentration of red wines from Hungary

“…On one hand, resveratrol is a fl oral immune substance, participating in the defence mechanism of the grape against fungal infections (YANG et al, 2009). On the other hand, in humans it has a protective role against cardiovascular diseases, as well as antiinfl ammatory, antiviral, antibacterial, and antioxidant properties (KING et al, 2006;KISBENEDEK et al, 2014). As demonstrated by SEIGNEUR and co-workers (1990) and GAUTAM and co-workers 2000, trans-resveratrol has an important inhibitory role against leukemic cells, and was found to be effective against certain cancerous conditions (GUERRERO et al, 2009).…”