Diverting tyrosine: Data from untargeted metabolic analysis of tomato fruit accumulating L-DOPA
L-DOPA, also known as Levodopa or L-3,4-dihydroxyphenylalanine, is synthesised in plants from the amino acid tyrosine, through oxidation. Conversion of tyrosine to L-DOPA constitues the first step of betalain biosynthesis in plants.
Dario Breitel +5 more
doaj +1 more source
Betanin inhibits the myeloperoxidase/nitrite-induced oxidation of human low-density lipoproteins [PDF]
Production of nitrogen dioxide by the activity of myeloperoxidase (MPO) in the presence of nitrite is now considered a key step in the pathophysiology of low-density lipoprotein (LDL) oxidation.
ALLEGRA, Mario +2 more
core +1 more source
Absorption, excretion, and distribution of dietary antioxidant betalains in LDLs: potential health effects of betalains in humans [PDF]
Background: Betalains were recently identified as natural antioxidants. However, little is known about their bioavailability from dietary sources. Objective: The objective was to evaluate the bioavailability of betalains from dietary sources. Design:
ALLEGRA, Mario +3 more
core +1 more source
First Betalain-Producing Bacteria Break the Exclusive Presence of the Pigments in the Plant Kingdom
The biosynthesis of antioxidant pigments, namely, betalains, was believed to be restricted to Caryophyllales plants. This paper changes this paradigm, and enzyme mining from bacterial hosts promoted the discovery of bacterial cultures producing betalains.
Luis Eduardo Contreras-Llano +4 more
doaj +1 more source
Beet mosaic virus expression of a betalain transcription factor allows visual virus tracking in Beta vulgaris [PDF]
In the field of plant virology, the usage of reverse genetic systems has been reported for multiple purposes. One is understanding virus–host interaction by labelling viral cDNA clones with fluorescent protein genes to allow visual virus tracking ...
Hossain, Roxana +4 more
core +2 more sources
Background Bougainvillea is a popular ornamental plant with brilliant color and long flowering periods. It is widely distributed in the tropics and subtropics.
Wenping Zhang +12 more
doaj +1 more source
Trans-epithelial transport of the betalain pigments indicaxanthin and betanin across Caco-2 cell monolayers and influence of food matrix [PDF]
Purpose: This study investigated the absorption mechanism of the phytochemicals indicaxanthin and betanin and the influence of their food matrix (cactus pear and red beet) on the intestinal transport.
ALLEGRA, Mario +6 more
core +1 more source
Kinetics of the lipoperoxyl radical-scavenging activity of indicaxanthin in solution and unilamellar liposomes [PDF]
The reaction of the phytochemical indicaxanthin with lipoperoxyl radicals generated in methyl linoleate methanol solution by 2,20-azobis(2,4-dimethylvaleronitrile), and in aqueous soybean phosphatidylcholine unilamellar liposomes by 2,20-azobis(2 ...
ALLEGRA, Mario +4 more
core +1 more source
Ameliorative Effect of Beetroot Against Folic Acid Deficiency: A Review. [PDF]
Beets, as well as folic acid supplements, provide a possible nutritional intervention for nutritional insufficiency, and this is especially true in functional foods. Offering a holistic explanation of beetroot's medicinal properties, this paper explores the means by which its bioactive constituents can counteract the adverse effects of folic acid ...
Rasheed A +7 more
europepmc +2 more sources
Dietary indicaxanthin from cactus pear (Opuntia ficus-indica L. Mill) fruit prevents eryptosis induced by oxysterols in a hypercholesterolaemia relevant proportion and adhesion of human erythrocytes to endothelial cell layers [PDF]
Toxic oxysterols in a hypercholesterolaemia-relevant proportion cause suicidal death of human erythrocytes or eryptosis. This process proceeds through early production of reactive oxygen species (ROS), release of prostaglandin (PGE2) and opening of PGE2 ...
ALLEGRA, Mario +3 more
core +1 more source

