نتایج جستجو برای: phenolic

تعداد نتایج: 24076  

Journal: :Acta biochimica Polonica 2009
Maria Zych Joanna Folwarczna Henryk I Trzeciak

Natural phenolic acids are commonly present in plants consumed in the diet. Recently we have observed that different natural phenolic acids exert differential effects on the body mass gain in ovariectomized and non-ovariectomized female rats. The aim of the present study was to investigate the effects of ferulic, caffeic, p-coumaric and chlorogenic acids on serum estradiol and total cholesterol...

2009
Mirela Kopjar Vlasta Piližota D. Šubarić J. Babić

The aim of this study was investigation of prevention of thermal degradation of the red currant juice anthocyanins by addition of different phenolic compounds (catechol, 4-methyl catechol, catechin, chlorogenic acid and gallic acid). Phenolic compounds were added in 50:1 and 100:1 copigment:pigment molar ratio. Red currant juice samples were heated at 30, 50, 70 and 90 °C for 1 hour. Thermal de...

Journal: :فرآوری و نگهداری مواد غذایی 0
زهرا نصیری فر دانشجوی کارشناسی ارشد علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان علیرضا صادقی ماهونک استادیار گروه علوم و صنایع غذایی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان فائزه کمالی دانشجوی کارشناسی ارشد علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان

plants are rich source of phenolic compounds (phenolic acids, flavonoids and tannins) that are most important natural antioxidants. in the present study two ultrasonic methods including probe and bath were used for the extraction of phenolic and flavonoid compounds from celtis australis. the effects of different extraction time including 30, 60 and 90 min (bath method) and 5, 10 and 20 min (pro...

Journal: :The British journal of nutrition 2013
Raul Zamora-Ros Joseph A Rothwell Augustin Scalbert Viktoria Knaze Isabelle Romieu Nadia Slimani Guy Fagherazzi Florence Perquier Marina Touillaud Esther Molina-Montes José María Huerta Aurelio Barricarte Pilar Amiano Virginia Menéndez Rosario Tumino Maria Santucci de Magistris Domenico Palli Fulvio Ricceri Sabina Sieri Francesca L Crowe Kay-Thee Khaw Nicholas J Wareham Verena Grote Kuanrong Li Heiner Boeing Jana Förster Antonia Trichopoulou Vassiliki Benetou Konstantinos Tsiotas H Bas Bueno-de-Mesquita Martine Ros Petra H M Peeters Anne Tjønneland Jytte Halkjær Kim Overvad Ulrika Ericson Peter Wallström Ingegerd Johansson Rikard Landberg Elisabete Weiderpass Dagrun Engeset Guri Skeie Petra Wark Elio Riboli Carlos A González

Phenolic acids are secondary plant metabolites that may have protective effects against oxidative stress, inflammation and cancer in experimental studies. To date, limited data exist on the quantitative intake of phenolic acids. We estimated the intake of phenolic acids and their food sources and associated lifestyle factors in the European Prospective Investigation into Cancer and Nutrition (E...

2015
Célia Lima Joana Madureira Rita Melo Maria M. Carolino João P. Noronha Fernanda M. A. Margaça Sandra Cabo Verde

Wastewater from cork processing industry present high levels of organic compounds such as phenolics that must be degraded before discharge into the municipal sewer or into public water courses. The aim of this work was to find out if gamma radiation treatment could increase the biodegradability of recalcitrant compounds using a microbial consortium and a mixed solution of four phenolic acids as...

2016
Chengmiao Yin Li Xiang Gongshuai Wang Yanfang Wang Xiang Shen Xuesen Chen Zhiquan Mao

Apple replant disease (ARD) is an important problem in the production of apple. The phenolic acid is one of the causes of ARD. How phenolic acid affects the ARD was not well known. In this study, we analyzed the type, concentration and annual dynamic variation of phenolic acid in soil from three replanted apple orchards using an accelerated solvent extraction system with high performance liquid...

Journal: :Molecules 2013
Alet Venter Elizabeth Joubert Dalene de Beer

Phenolic compounds are abundant secondary metabolites in plums, with potential health benefits believed to be due to their antioxidant activity, amongst others. Phenolic characterisation of South African Prunus salicina Lindl. plums is necessary to fully evaluate their potential health benefits. An HPLC method using diode-array detection (DAD) for quantification of phenolic compounds was improv...

Journal: :Food chemistry 2014
L M Ramirez-Lopez W McGlynn C L Goad C A Mireles Dewitt

Phenolic acids, flavanols, flavonols and stilbenes (PAFFS) were isolated from whole grapes, juice, or pomace and purified using enzymatic hydrolysis. Only anthocyanin mono-glucosides and a few of the oligomers from Cynthiana grape (Vitis aestivalis) were analysed. Flavonoid-anthocyanin mono-glucosides (FA) were isolated using methanol/0.1% hydrochloric acid extraction. In addition, crude extrac...

2012
Krzysztof Dwiecki Aleksander Siger Jarosław Czubiński Małgorzata Nogala-Kałucka Eleonora Lampart-Szczapa

The focus of the present research was to study inhibition of lipoxygenase activity by rapeseed native polyphenols and the interactions between those compounds and the enzyme. The enzyme and polyphenolic compounds (polyphenols, phenolic acids) were extracted from rapeseed (Brassica napus) varieties Aviso and PR45DO3. The total phenolic compounds concentration in tested rapeseed was 1,485-1,691 m...

2014
José F. Navas-Lopez Francisco J. Ostos-Garrido Almudena Castillo Antonio Martín Maria J. Gimenez Fernando Pistón

For humans, wheat is the most important source of calories, but it is also a source of antioxidant compounds that are involved in the prevention of chronic disease. Among the antioxidant compounds, phenolic acids have great potential to improve human health. In this paper we evaluate the effect of environmental and genetic factors on the phenolics content in the grain of a collection of tritord...

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