نتایج جستجو برای: polyphenol compounds

تعداد نتایج: 231863  

2013
Dong-Geng Wang Wen-Ying Liu Guang-Tong Chen

Resveratrol, a polyphenol compound with strong biological activity, has been widely used in medicine, health products and cosmetic industries. It is also the main active component of Polygonum cuspidatum, a well-known traditional Chinese medicine. We developed a simple and effective method for the preparation of resveratrol from P. cuspidatum. The whole preparative process consisted of reflux e...

2017
Anna Vallverdú-Queralt Emmanuelle Meudec Matthias Eder Rosa M Lamuela-Raventos Nicolas Sommerer Véronique Cheynier

Polyphenols, including tannins and red anthocyanin pigments, are responsible for the color, taste, and beneficial health properties of plant-derived foods and beverages, especially in red wines. Known compounds represent only the emerged part of the "wine polyphenol iceberg". It is believed that the immersed part results from complex cascades of reactions involving grape polyphenols and yeast m...

Journal: :Molecules 2014
Wei-Min Zhang Wu-Yang Huang Wen-Xue Chen Lin Han Hai-De Zhang

Polyphenols are functional compounds in plants, which possess many bioactivities beneficial for humans. The aim of this study was to establish a highly efficient method for extracting polyphenol compounds from areca seeds and further to identify polyphenols and antioxidant properties of the seeds. A quadratic general rotary unitized design was used to determine the optimal extraction process. T...

Journal: :Life sciences 2014
Pema Raj Xavier Lieben Louis Sijo Joseph Thandapilly Ali Movahed Shelley Zieroth Thomas Netticadan

The concept of food has expanded beyond its traditional role of survival and hunger satisfaction, to include a role in the prevention and treatment of disease. Polyphenols are classes of compounds that are synthesized by plants to serve a wide variety of functions including growth pollination and defense. These compounds have recently received increased attention in medical research. In this gr...

The electrochemistry of banana tissues on a carbon paste electrode modified with multi-walled carbon nanotubes (MWCNTs) is presented. Cyclic voltammetry is applied to investigate the direct electrochemistry of banana tissues i.e. a source of polyphenol oxidase (PPO). A redox couple with an anodic and counterpart cathodic peak is obtained. The influence of various parameters such as pH,...

2014
Anna Tresserra-Rimbau Eric B Rimm Alexander Medina-Remón Miguel A Martínez-González M Carmen López-Sabater María I Covas Dolores Corella Jordi Salas-Salvadó Enrique Gómez-Gracia José Lapetra Fernando Arós Miquel Fiol Emili Ros Lluis Serra-Majem Xavier Pintó Miguel A Muñoz Alfredo Gea Valentina Ruiz-Gutiérrez Ramón Estruch Rosa M Lamuela-Raventós

BACKGROUND Polyphenols may lower the risk of cardiovascular disease (CVD) and other chronic diseases due to their antioxidant and anti-inflammatory properties, as well as their beneficial effects on blood pressure, lipids and insulin resistance. However, no previous epidemiological studies have evaluated the relationship between the intake of total polyphenols intake and polyphenol subclasses w...

Journal: :Molecules 2013
Cindy F Verdu Julia Gatto Ingrid Freuze Pascal Richomme François Laurens David Guilet

The aim of this study was to develop faster and more efficient phenotyping methods for in-depth genetic studies on cider apple progeny. The UHPLC chromatographic system was chosen to separate polyphenolic compounds, and quantifications were then simultaneously performed with a UV-PDA detector and an ESI-triple quadrupole mass analyzer (SRM mode). Both quantification methods were validated for 1...

Journal: :Beverages 2023

Wine quality is determined by the development of grape maturation, which highly dependent on climate variations. Extreme weather events are becoming more common, will affect productivity and grapes wine. Grape depends many factors, including weather, extreme influence berry size, skin thickness some key compounds, such as phenolics. In this work, ripening evolution phenolic content Vitis vinife...

Journal: :Alchemy: Jurnal Penelitian Kimia 2023

Cacao is attractive for its flavor and taste beneficial effects. Therefore, this commodity promising to be developed as a functional food. Many studies reported the bioactive compounds in cacao beans their health benefits. However, attain desirable taste, curing process of common practice, which fermentation one processes. Despite significance, also alters components beans. To develop food rich...

Journal: :Acta Scientiarum Polonorum-hortorum Cultus 2023

The present study of Knautia drymeia and K. macedonica is in line with the current trend searching for new plant species that can potentially be used as medicinal herb materials. A comparative analysis morphological anatomical structure both was performed together distribution polyphenolic compounds, which correlated tissue organs. Quantitative phytochemical analyses were to supplement biophysi...

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