Results 31 to 40 of about 16,515 (204)

Effects of Lutein and Zeaxanthin on LPS-Induced Secretion of IL-8 by Uveal Melanocytes and Relevant Signal Pathways

open access: yesJournal of Ophthalmology, 2015
The effects of lutein and zeaxanthin on lipopolysaccharide- (LPS-) induced secretion of IL-8 by uveal melanocytes (UM) were tested in cultured human UM. MTT assay revealed that LPS (0.01–1 μg/mL) and lutein and zeaxanthin (1–10 μM) did not influence the ...
Shih-Chun Chao   +4 more
doaj   +1 more source

The Effect of Zeaxanthin on the Visual Acuity of Zebrafish. [PDF]

open access: yesPLoS ONE, 2015
Oral supplementation of carotenoids such as zeaxanthin or lutein which naturally occur in human retina have been shown to improve vision and prevent progression of damage to advanced AMD in some studies.
Eric A Saidi   +2 more
doaj   +1 more source

Optimization of Ultrasonic-Assisted Extraction and Purification of Zeaxanthin and Lutein in Corn Gluten Meal

open access: yesMolecules, 2019
Zeaxanthin and lutein have a wide range of pharmacological applications. In this study, we conducted systematic experimental research to optimize antioxidant extraction based on detection, extraction, process amplification, and purification.
Litao Wang   +6 more
doaj   +1 more source

Orange Capsicums and Chillies as a Potential Source of Dietary Zeaxanthin, an Important Macular Carotenoid for Eye Health

open access: yesProceedings, 2020
Zeaxanthin is a dietary carotenoid accumulated in the macula in order to reduce photoreceptor oxidation by blue light. Damage caused to photoreceptor cells in the human eye leads to macular degeneration, which is the leading cause of blindness in ...
Rimjhim Agarwal   +4 more
doaj   +1 more source

Comparison of Antioxidant Properties of Dehydrolutein with Lutein and Zeaxanthin, and their Effects on Cultured Retinal Pigment Epithelial Cells

open access: yesAntioxidants, 2021
Dehydrolutein accumulates in substantial concentrations in the retina. The aim of this study was to compare antioxidant properties of dehydrolutein with other retinal carotenoids, lutein, and zeaxanthin, and their effects on ARPE-19 cells.
Małgorzata B. Różanowska   +3 more
doaj   +1 more source

The Dynamics of Energy Dissipation and Xanthophyll Conversion in Arabidopsis Indicate an Indirect Photoprotective Role of Zeaxanthin in Slowly Inducible and Relaxing Components of Non-photochemical Quenching of Excitation Energy

open access: yesFrontiers in Plant Science, 2017
The dynamics of non-photochemical quenching (NPQ) of chlorophyll fluorescence and the dynamics of xanthophyll conversion under different actinic light conditions were studied in intact leaves of Arabidopsis thaliana. NPQ induction was investigated during
Eugen Kress, Peter Jahns
doaj   +1 more source

Microbial Production of Zeaxanthin

open access: yes, 2023
Microbial Production of Food Bioactive Compounds / Editors:Seid Mahdi Jafari, Farshad Darvishi Harzevili -- Springer -- DOI:10.1007/978-3-030-81403-8_36-1 -- 2023.
Lee, Chi-Ching   +1 more
openaire   +2 more sources

Mehler-Peroxidase Reaction Mediates Zeaxanthin Formation and Zeaxanthin-Related Fluorescence Quenching in Intact Chloroplasts [PDF]

open access: yesPlant Physiology, 1992
Induction of zeaxanthin formation and the associated nonphotochemical quenching in iodoacetamide-treated, non-CO(2)-fixing intact chloroplasts of Lactuca sativa L. cv Romaine is reported. The electron transport needed to generate the required DeltapH for zeaxanthin formation and nonphotochemical quenching are ascribed to the Mehler-ascorbate peroxidase
C, Neubauer, H Y, Yamamoto
openaire   +2 more sources

Enhanced Production of Astaxanthin and Zeaxanthin by Paracoccus Sp. LL1 Through Random Mutagenesis

open access: yesBiotechnology and Applied Biochemistry, EarlyView.
ABSTRACT Astaxanthin, a high‐value carotenoid with potent antioxidant and anti‐inflammatory activities, is increasingly in demand in various industries. This study reports the successful enhancement of astaxanthin and zeaxanthin production in Paracoccus sp. LL1 through random mutagenesis using ethyl methanesulfonate (EMS).
Anoth Maharjan, Beom Soo Kim
wiley   +1 more source

Reconstruction of the carotenoid biosynthetic pathway of Cronobacter sakazakii BAA894 in Escherichia coli. [PDF]

open access: yesPLoS ONE, 2014
Cronobacter sakazakii could form yellow-pigmented colonies. However, the chemical structure and the biosynthetic pathway of the yellow pigments have not been identified. In this study, the yellow pigments of C. sakazakii BAA894 were purified and analyzed.
Wei Zhang   +3 more
doaj   +1 more source

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