Results 61 to 70 of about 2,210 (194)

A Spectrophotofluorometric Analysis of Serum Vitamin A Levels in a Defined Population [PDF]

open access: yes, 1976
The objectives of this thesis were to examine serum vitamin A levels in two defined populations. The method of analysis was a spectrophotofluorometric technique with a correction formula to account for interfering fluorescence from an identified ...
Schroeder, James Ronald
core   +1 more source

A New Era for Using Natural Pigments: The Case of the C50 Carotenoid Called Bacterioruberin

open access: yesBiotechnology and Applied Biochemistry, Volume 73, Issue 2, Page 913-926, April 2026.
ABSTRACT Haloarchaea are extremophilic microorganisms belonging to the Archaea domain that require high salt concentrations to live, thus inhabiting ecosystems like salty ponds, salty marshes, or extremely salty lagoons. They are more abundant and widely distributed worldwide than initially expected.
Micaela Giani   +5 more
wiley   +1 more source

Establishment of an Arabidopsis callus system to study the interrelations of biosynthesis, degradation and accumulation of carotenoids. [PDF]

open access: yesPLoS ONE, 2018
The net amounts of carotenoids accumulating in plant tissues are determined by the rates of biosynthesis and degradation. While biosynthesis is rate-limited by the activity of PHYTOENE SYNTHASE (PSY), carotenoid losses are caused by catabolic enzymatic ...
Patrick Schaub   +5 more
doaj   +1 more source

Comparative Response of Two Hydrilla Strains to Fluridone [PDF]

open access: yes, 2005
Experiments were conducted in a controlled-environmental growth chamber to evaluate the response of two strains of the invasive submersed plant Hydrilla verticillata (L.f.) Royle to fluridone (1-methyl-3-phenyl-5-[3-trifluoromethyl)phenyl]- 4(1H ...
Getsinger, K. D.   +2 more
core  

In vitro antioxidant capacity of tomato products: Relationships with their lycopene, phytoene, phytofluene and alpha-tocopherol contents, evaluation of interactions and correlation with reflectance measurements [PDF]

open access: yes, 2016
Tomato products were analysed for their carotenoids and a-tocopherol contents to study the contribution of individual compounds to the antioxidant capacity and assess the existence of interactions. Besides, the applicability of reflectance measurements
Heredia Mira, Francisco José   +3 more
core   +1 more source

Characterization of Phytoene Desaturase Knockout Carotenoid‐Deficient Microalgal Mutants Generated by Cas9‐Ribonucleoprotein Complexes

open access: yesPhysiologia Plantarum, Volume 178, Issue 2, March/April 2026.
ABSTRACT Phytoene desaturase (PDS; EC 1.3.5.5) is a key enzyme of the carotenoid biosynthetic pathway, catalyzing the desaturation of phytoene, precursor of all carotenoids. In this study, several PDS‐knockout (PDS‐KO) transformants of the chlorophyte microalga Chlamydomonas reinhardtii were generated using a reverse genetics strategy. Two single guide
Ana Molina‐Márquez   +5 more
wiley   +1 more source

Utilization of NIRS and Minolta Chromameter in selection for increased carotenoids content in cassava roots. [SP10-03] [PDF]

open access: yes, 2012
Significant progress has been made increasing carotenoids content in cassava roots. The information was used to test the usefulness of NIRs and the Minolta Chromameter in predicting carotenoids content (and other relevant traits). Quantification was made
Becerra López-Lavalle, Luis Agusto   +10 more
core  

The combined effects of Golden2‐like 2 and Pseudo‐Response Regulator 2 control the fruit pigmentation in pepper

open access: yesThe Plant Journal, Volume 125, Issue 5, March 2026.
SUMMARY Fruit pigmentation mainly controlled by chlorophyll, carotenoids, and flavonoids is an important phenomenon for fortifying the nutritional and esthetic value of humans. Our previous study identified Pseudo‐Response Regulator 2 (PRR2) as a regulator of fruit pigmentation through its association with the c1 locus.
Soobin Lee   +4 more
wiley   +1 more source

The chimeric repressor version of an Ethylene Response Factor(ERF) family member, Sl-ERF.B3, shows contrasting effects on tomato fruit ripening [PDF]

open access: yes, 2014
Fruit ripening involves a complex interplay between ethylene and ripening-associated transcriptional regulators. Ethylene Response Factors (ERFs) are downstream components of ethylene signaling, known to regulate the expression of ethylene-responsive ...
Adams   +65 more
core   +3 more sources

Functional and Organic Foods in Enhancing the Oral and Dental Health and Hygiene—A Comprehensive Review

open access: yesFood Science &Nutrition, Volume 14, Issue 2, February 2026.
Functional and organic foods contain effective and bioactive compositions. Organic foods and foods enriched with phytochemicals provide promising oral health. Functional foods and beverages in the diet can control and treat oral illnesses ABSTRACT Maintaining oral and dental hygiene, it is significantly related to individuals' quality of life as well ...
Elahe Aleebrahim‐Dehkordi   +2 more
wiley   +1 more source

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