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epicatechin, etc ; chemical structure; epigallocatechin gallate; food chemistry; meat; oxidation; phenol; polyphenols; ultrasonics; Show all 9 Subjects
Abstract:
... Phenolic modification of myofibrillar protein (MPN) is an essential technology in meat processing. This paper investigated the grafting reaction of three structurally relevant polyphenols (PPs), epigallocatechin-3-gallate (EGCG), epigallocatechin (EGC), epicatechin (EC), and MPN, in a conventional alkaline reaction and ultrasound (UT)-assisted oxidation system. EC triggered the production of more ...
epicatechin, etc ; antioxidant activity; apples; catechin; corn; dietary fiber; extrusion; fruits; health promotion; phloridzin; procyanidins; wastes; Show all 12 Subjects
Abstract:
... Extrusion is an industrial technology allowing utilization of fruit-based off-products, rich in bioactive and prohealth compounds, in the production of gluten-free snacks. The use of up to 20% fruit waste (apple waste) in the production of such snacks results in significant increases of polyphenols and flavonoids, as well as individual phenolic acids: chlorogenic (36 times) and cryptochlorogenic ( ...
epicatechin, etc ; bioactive compounds; cotyledons; fermentation; food safety; germplasm; hulls; lipid content; near-infrared spectroscopy; theobromine; Show all 10 Subjects
Abstract:
... Near Infrared (NIR) spectroscopy was evaluated as a fast and easy method for identifying the most interesting cocoa genotypes according to chemical composition, including bioactive compound contents, in more than 80 samples of cocoa beans from the Mexican Germplasm Bank, which were harvested over three years. Clear differences in chemical composition were detected in fermented and dried samples am ...
epicatechin, etc ; catechin; chemotaxonomy; cluster analysis; dietary supplements; epigallocatechin; food composition; genotype; liquid chromatography; mass spectrometry; proanthocyanidins; Show all 11 Subjects
Abstract:
... To determine the varietal specificity of the composition of proanthocyanidins (PACs) in hops, a fast and simple method of liquid chromatography coupled with high-resolution accurate mass spectrometry for qualitative profiling of PACs was developed. A total of 140 samples of 19 hop varieties were analysed. Three (epi)catechin-(epi)afzelechin dimers, six (epi)catechin-(epi)catechin dimers, four (epi ...
epicatechin, etc ; Cinnamomum verum; bark; bioactive properties; biomechanics; chemical degradation; collagen; countercurrent chromatography; infrared spectroscopy; models; proanthocyanidins; Show all 11 Subjects
Abstract:
... To enable the further exploration of structure–activity relationships (SARs) of proanthocyanidins (PACs) with dentin biomodification abilities, Cinnamomum verum was selected for scaled-up purification of mixed A-/B-type, medium-size PAC oligomers. Sequential purification by centrifugal partition chromatography (CPC), Sephadex LH-20, and semiprep HPLC chromatography yielded four underivatized tetra ...
... There are few studies on controlling the formation of heterocyclic amines (HAs) by adding polyphenols to roasted lamb. The aim of this study was to assess the inhibitory effect of 0.025, 0.125, and 0.625 mmol of chlorogenic acid, epicatechin, rutin, quercetin and quinic acid on the formation of HAs in charcoal roasted lamb, respectively, by UHPLC-MS/MS. The results indicated that Harman, Norharman ...
... Grape seeds are a rich source of flavan-3-ol monomers, oligomers, and polymers. The diverse profile of compounds includes mainly B-type procyanidins (especially C4→C8 linked molecules) and the key monomers, catechin, and epicatechin that are positively implicated in the ‘French Paradox’. Today grape seed nutraceuticals have become a multi-million-dollar industry. This has created incentives to elu ...
epicatechin, etc ; Helleborus; antineoplastic activity; antioxidant activity; apoptosis; ascorbic acid; breast neoplasms; cancer therapy; cell lines; cytotoxicity; kaempferol; neoplasm cells; quercetin; Show all 13 Subjects
Abstract:
... In the field of oncology, the plant kingdom has an inexhaustible supply of bioactive compounds. Phytochemical compounds isolated from Helleborus species have been found to be useful in various chronic diseases. This has brought Helleborus to the attention of medical researchers. H. purpurascens is a plant characteristic of the Carpathian area, known since ancient times for its beneficial effects. ...
epicatechin, etc ; Litsea glaucescens; antioxidant activity; antioxidants; chromatography; indigenous species; kaempferol; nuclear magnetic resonance spectroscopy; quercitrin; traditional medicine; Central America; Mexico; Show all 12 Subjects
Abstract:
... Litsea glaucescens is a native plant from Mexico and Central America known as laurel, and they leaves are commonly used as food seasoning and traditional medicine, however, there is not enough information about its biological activities, as antioxidant and the compounds responsible of this activity. The antioxidant activity and the total phenolic content of a methanolic extract of L. glaucescens l ...
... The tea plant, Camellia sinensis (L.) O. Kuntze, is an economically important, perennial woody plant rich in catechins. Although catechins have been reported to play an important role in plant defences against microbes, their roles in the defence of tea plants against herbivores remain unknown. In this study, we allowed the larvae of Ectropis grisescens, a leaf‐feeding pest, to feed on the plants, ...
epicatechin, etc ; Enterobacter; Prunus domestica; antimicrobial properties; bacteria; biocides; biofilm; catechin; countercurrent chromatography; glucosides; high performance liquid chromatography; proanthocyanidins; tomatoes; trees; wood; wood residues; Show all 16 Subjects
Abstract:
... European plum (Prunus domestica L.) is a tree cultivated in many countries for its edible fruits, and necessarily certain amounts of useless woody residues are generated every year during pruning works. The objectives of this research were to recover the phenolics present on that wood wastes and study their antimicrobial and antibiofilm activities against a selection of foodborne microorganisms, i ...
epicatechin, etc ; carnitine palmitoyltransferase; death; energy metabolism; fatty-acid synthase; glucose; heart; insulin; insulin receptors; lipids; mechanism of action; metabolites; phosphatidylinositol 3-kinase; tyrosine; Show all 14 Subjects
Abstract:
... Epicatechin (EC) and main colonic phenolic acids derived from flavonoid intake have been suggested to exert healthful effects, although their mechanism of action remains unknown. Heart damage is highly prevalent in metabolic diseases, and the failure of this organ is a major cause of death worldwide. In this study, the modulation of the energy metabolism and insulin signalling by the mentioned com ...
Ellen Porto Pinto; Ellen Cristina Perin; Igor Bulsing Schott; Elisângela Düsman; Rosane da Silva Rodrigues; Luciano Lucchetta; Vitor Manfroi; Cesar Valmor Rombaldi
epicatechin, etc ; Vitis labrusca; anthocyanins; antioxidant activity; color; cyanidin; delphinidin; grape juice; grapes; growth and development; kaempferol; malvidin; metabolism; metabolites; pH; quercetin; titratable acidity; Show all 17 Subjects
Abstract:
... Grape juice is known as a relevant source of compounds with antioxidant potential, which are accumulated during grape growth and development. As these compounds come from specialized metabolism, postharvest stressors may increase the synthesis and accumulation of these metabolites. Thus, UV-C radiation (65.6 J m⁻²) was applied to ‘Concord’ grapes (from vineyards grown in conventional and organic s ...
epicatechin, etc ; Escherichia coli; Prunus armeniaca; active sites; antioxidant activity; apricots; catechin; catechol oxidase; enzyme kinetics; heterologous gene expression; molecular weight; pH; procyanidins; research; Show all 14 Subjects
Abstract:
... In this study, we investigate the effect of enzymatic browning on the phenolic composition of apricot in vivo and in vitro. The in vitro browning was caused by the recombinant latent apricot polyphenol oxidase (L-PaPPO). Successful heterologous expression of PaPPO in Escherichia coli yielded substantial amounts of enzyme containing both copper ions in the catalytic active site. The expressed L-PaP ...
epicatechin, etc ; Fourier transform infrared spectroscopy; caffeic acid; chemical degradation; chlorogenic acid; color; dyes; epigallocatechin gallate; food chemistry; hydrogen; nuclear magnetic resonance spectroscopy; rosmarinic acid; tannins; Show all 13 Subjects
Abstract:
... Gardenia yellow pigment (GYP) may undergo chemical degradation under different conditions resulting in color fading. This study investigated the effects of different phenolic compounds (caffeic acid, rosmarinic acid, tannic acid, epicatechin, chlorogenic acid, epigallocatechin, and epigallocatechin gallate) on the physical and chemical stability of GYP under light and different temperatures. Furth ...
... In this study, the walnut flowers were fermented using five different probiotics, including two Lactobacillus plantarum, one Lactobacillus bulgaricus, one Lactobacillus casei, and one Lactobacillus rhamnosus. The chemical compositions, antioxidant capacities, and α‐glucosidase inhibitory abilities of walnut flowers during fermentation processes were evaluated. The results showed that all the activ ...
... Single cell oil (SCO) produced by yeast is an attractive alternative due to higher yield of lipid in a limited space with opportunity for naturally manipulating its quality. In the present study, the banana peel is used as a source of carbon for biotransformation by Rhodotorula mucilaginosa to lipid. Further, the quality and quantity of the lipid are enhanced using discarded aqueous Prosopis ciner ...
... The pisco and wine industry produces hundreds of tons of grape pomace each year in Chile, generating environmental problems, and demanding urgent strategies for its management. The aim of this work was to study the pisco grape pomace based on a physicochemical characterization, an iron/copper speciation analysis, and the optimization for polyphenols recovery, establishing the polyphenolic profile, ...
... Secondary compounds of fruit are among the essential concerns due to their positive effects on human health. Many studies have attempted to improve these compounds by applying different genotype or cultivation practices such as irrigation and fertilization. This study aimed to find out the effect of different harvest dates on strawberry genotypes in terms of total phenolic (TP), total antioxidant ...
... Functional ingredients, particularly Moringa oleifera, have been highlighted as promising substances for combatting the harmful effects of oxidative stress. However, the physicochemical factors can easily influence its properties. To overcome this problem, this study aimed to achieve the microencapsulation of its leaf extract (CE-L) and phenolic-rich fraction (EF-L) and evaluate their chemical con ...