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Showing 1 to 20 of 37 for “"β-carotene"”.
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The effects of supplementation of β-carotene during the close-up period on cows, colostrum, and calves
… antioxidant that should be considered is β-carotene. β-Carotene is found naturally in many plants and is a dual-purpose nutrient, having both provitamin A and antioxidative functions. Ingested β-carotene can be cleaved into two molecules of retinol if the animal is in need of retinoids. If …
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Dietary tomato carotenoids and β-carotene-15,15'- dioxygenase (Bco1) genotype alter androgen metabolism, lipid metabolism, and prostate cancer progression in mice
β-carotene-15,15'-dioxygenase (BCO1) cleaves dietary carotenoids at the central 15,15' double bond, most notably acting on β-carotene to yield retinal. Much work has gone into the description of enzymatic carotenoid cleavage activities of the enzyme, but although pleiotropic effects of Bco1 loss on …
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Defining risk for metabolic syndrome in young Mexican adults: the relationship between β,β-carotene-15,15'- oxygenase 1, nutrition and the lipid profile
… is somewhat dependent on the activity of β, β-carotene-15,15-oxyegenase 1 (BCO1). However, studies show that humans exhibit both low and high conversion rates of provitamin A carotenoids to functional retinoids. This may be due to single nucleotide polymorphism (SNPs) within and upstream of the …
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Β-carotene promotes atherosclerosis resolution and alleviates liver inflammation in a reversible murine model of atherosclerosis: A potential role of regulatory T cells
Background: β-carotene has several health benefits on lipid metabolism, most of which are mediated through its provitamin A activity. Our laboratory has recently shown that β-carotene conversion to vitamin A is associated with reduced circulating cholesterol levels in mice and humans. Objective: To …
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Effects of oil types and beta-carotene in repeated deep-fat frying of French fries
… This prompted the study of the effect of β-carotene as an antioxidant in deep-fat frying. β-carotene was added to palm olein at a concentration equivalent to the total carotenoids in crude palm oil. With respect to p-Anisidine value, the antioxidant contribution of carotenoids was negligible …
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Dairy ingredients-based emulsions and beta-carotene delivery
… representative lipophilic bioactive nutrient, β-carotene, was encapsulated into these model emulsions. Emulsion properties, and the in vitro digestion, release, bioaccessibility and absorption by enterocytes of encapsulated βcarotene were investigated. Re-dispersible dry forms of these model …
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Rice Fortification by Parboiling in Limited-Water Soaking to Alleviate Mineral and Vitamin Deficiency
… of rice with calcium, iron, folic acid, β-carotene, and vitamin A. Excess- and limited-water soaking method were compared for fortified rice quality attributes including head rice yield and kernel color, mineral and vitamin contents, the amount of wastewater, total solids in wastewater. …
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Vitamin A depletion and repletion in thoroughbred horses
… to evaluate the effectiveness of vitamin A and β-carotene as supplements. Vitamin A status was assessed by serum retinol concentrations (SR) and the relative dose response (RDR) which was adapted for use in the horse. The horses (45 Thoroughbred mares) were divided into three diet groups: pasture …
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Carotenoid metabolism in mice and prostate cancer risk
… products or higher blood levels of lycopene. β-carotene is centrally cleaved by carotene monoxygenase I (CMO-I) to form vitamin A and further metabolism results in formation of retinoic acid and other retinoids. The metabolism of β-carotene has been extensively studied, but very little is known …
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Engineering yeast to synthesize high-value natural products from plant cell wall
… and harnessed for high-level production of β-carotene. Subsequently, we illustrated efficient conversion of xylose-enriched biosorghum hydrolysates into β-carotene by this engineered strain. Next, vitamin A production was established and maximized by addressing challenges including limited …
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Understanding The Carotenoid Biosynthesis Pathway in Orange Actinidia Species
… A. arguta (GF) revealed high accumulation of β-carotene (provitamin A) in orange and yellow fruits, whereas green fruit accumulated xanthophylls (primarily lutein). Transcriptomic analysis between OF and GF revealed upregulation of carotenoid pathway genes (DXS, PSY2, GGPPS, PDS, Z-ISO, and ZDS) …
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Approaches to understanding diversity in rubber and carotenoid synthesis in <i>Hevea brasiliensis </i>latex
… major carotenoids namely lutein, zeaxanthin, α-carotene and β-carotene were consistently present in both RRIM600 and PB235 latex. β-carotene was found to be the major carotenoid, at 1.2 μg/g in PB235 and 0.8 μg/g in RRIM600 fresh latex samples. However, the analytical method developed to measure …
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ULTRASONIC APPLICATIONS- PHYTOCHEMICAL ANALYSES OF SOME MEDICINAL NATURAL PRODUCTS IN FOOD PLANTS
… the shelf-life and quality of these foods.Beta-carotene, ascorbic acid, and many phenolics play dynamic roles in delaying aging, reducing inflammations, and preventing certain cancers. Increasing the consumption of fruits and vegetables has been recommended by many agencies and health care …
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Laying-Sequence Variation in Yolk Carotenoids of Eastern Bluebirds
… in the egg yolks of Eastern Bluebirds: lutein, β-carotene, zeaxanthin, astaxanthin, and β-cryptoxanthin. As predicted, the egg mass, egg length, and egg width did not vary significantly across the clutch.</p>
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Genotype effects impact lipids and organ weights in female mice lacking carotenoid cleavage enzymes
… cleaving carotenoids in to their metabolites. β-carotene is cleaved by carotenoid-15,15'-oxygenase (CMO-I), to eventually form biologically-active retinoids. Lycopene is a non-provitamin A carotenoid and the most abundant carotenoid in tomatoes. Lycopene is a poor substrate for CMO-I, but our lab …
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Pengaruh pemberian ekstrak etanol daun kelor (Moringa oleifera Lamk.) terhadap kadar MDA (Malondialdehyde) dan histopatologi hepar mencit (Mus musculus) balb/C jantan yang dipapar oleh timbal (Pb) asetat
… beberapa diantaranya yaitu vitamin A (β-carotene), vitamin C serta vitamin E. Senyawa ini diketahui mampu mengurangi radikal bebas yang berlebih dalam tubuh yaitu dengan mengikat elektron tidak berpasangan yang diakibatkan oleh banyaknya radikal bebas dalam tubuh. Penelitian ini bertujuan …
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Pink discolouration in cheese
… The most dominant carotenoid was β-carotene followed by other provitamin A carotenoids and carotenoids of bacterial origin like decaprenoxanthin, sarcinaxanthin and echinenone. Analysis of the core extracts of these cheeses showed β-carotene and very low levels of cryptoxanthin-like …
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Survival potential of microalgae for long-term space missions
… astaxanthin (keto-carotenoid) or the orange β-carotene pigments which can be utilised for human consumption. Another advantage of the physiology of these cells is that they may be more resistant to doses of radiation in space (due to the high antioxidant properties of the pigments).<br/>These …
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Improving Lung Cancer Risk Prediction: Integration of Novel Predictors and Modelling Using Machine Learning Random Forest versus the Validated PLCOm2012 Logistic Regression Model
… respectively. The addition of supplemental β-carotene, dietary vitamin A, total isoflavone, and history of chest x-ray also resulted in an increase in ROC-AUC from 0.797 to 0.810 (ΔROC-AUC= 0.013, p<0.001). This study demonstrated that the application of traditional LR exhibited superior …
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The optical cubic susceptibility dispersion of some transparent thin films.
… measurement. In the case of β-carotene and polythiophenes the four level model also fits the Third-Harmonic-Generation data well. In the previously mentioned cases the spectral behavior of the Two-Photon figure of merit derived by Mizrahi et al. is calculated. The four level …
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