beta Carotene
Research News and Information

Sunday, November 22, 2009

Density functional theory study of the stability and vibrational spectra of the beta-carotene isomers.

8 Sep 2009 A density functional theory analysis of the stability and vibrational spectra of the beta-carotene isomers is carried out. The study includes the 7-, 9-, 11-, 13-, and 15-monocis isomers and the 7,13'-, 9,13-, 9,13'-, 9,15-, 11,11'-, and 13,15-dicis ... Read more...

Electronic coherence provides a direct proof for energy-level crossing in photoexcited lutein and beta-carotene.

Sep 2009 We investigate femtosecond transient absorption dynamics of lutein and beta-carotene. Strong oscillations up to about 400 fs are observed, depending on excitation or detection wavelength and solvent. We propose electronic quantum beats as the origin ... Read more...

Serum vitamin A and beta-carotene levels in children with asthma.

30 Aug 2009 BACKGROUND: Low serum levels of dietary antioxidants are associated with allergic diseases including asthma. Vitamin A and carotenoids are dietary antioxidants that are likely to play an important role against airway inflammation. METHODS: This ... Read more...

Latest indexed articles for 'beta Carotene'

These are the very latest articles for this heading:

• Density functional theory study of the stability and vibrational spectra of the beta-carotene isomers. 8 Sep 2009
• Electronic coherence provides a direct proof for energy-level crossing in photoexcited lutein and beta-carotene. Sep 2009
• Serum vitamin A and beta-carotene levels in children with asthma. 30 Aug 2009
• Reactions of OOH radical with beta-carotene, lycopene, and torulene: hydrogen atom transfer and adduct formation mechanisms. 11 Aug 2009
• Baicalin in radical scavenging and its synergistic effect with beta-carotene in antilipoxidation. 10 Aug 2009
• Serum alpha- and beta-carotene concentrations qualitatively respond to sustained carrot feeding. 3 Aug 2009
• Effects of beta-carotene on antioxidant status in rats with chronic alcohol consumption. 30 Jul 2009
• Mechanism of beta-carotene-induced apoptosis of gastric cancer cells: involvement of ataxia-telangiectasia-mutated. 30 Jul 2009
• Characterization of cyanobacterial beta-carotene ketolase and hydroxylase genes in Escherichia coli, and their application for astaxanthin biosynthesis. 30 Jul 2009
• Deviation of the neurosporaxanthin pathway towards beta-carotene biosynthesis in Fusarium fujikuroi by a point mutation in the phytoene desaturase gene. 21 Jul 2009
• Formation of carotenoid neutral radicals in photosystem II. 21 Jul 2009
• {beta}-Carotene from rice for human nutrition? 13 Jul 2009
• Re: "Long-term use of beta-carotene, retinol, lycopene, and lutein supplements and lung cancer risk: results from the VITamins and Lifestyle (VITAL) Study". 13 Jul 2009
• Influence of thermal and dense-phase carbon dioxide pasteurization on physicochemical properties and flavor compounds in Hami melon juice. 6 Jul 2009
• Online gas chromatography combustion/pyrolysis-isotope ratio mass spectrometry (HRGC-C/P-IRMS) of (+/-)-Dihydroactinidiolide from tea ( Camellia sinensis ) and rooibos tea ( Aspalathus linearis ). 6 Jul 2009
• Ustilago maydis accumulates beta-carotene at levels determined by a retinal-forming carotenoid oxygenase. 3 Jul 2009
• beta-carotene production enhancement by UV-A radiation in Dunaliella bardawil cultivated in laboratory reactors. 29 Jun 2009
• Antioxidant diterpenoids from the roots of Salvia barrelieri. 29 Jun 2009
• Antioxidant activities, metal contents, total phenolics and flavonoids of seven Morchella species. 25 Jun 2009
• A consensus linkage map identifies genomic regions controlling fruit maturity and beta-carotene-associated flesh color in melon (Cucumis melo L.). 22 Jun 2009

See a longer list of these articles.

Technical information about 'beta Carotene'

Definition: A carotenoid that is a precursor of VITAMIN A. It is administered to reduce the severity of photosensitivity reactions in patients with erythropoietic protoporphyria (PORPHYRIA, ERYTHROPOIETIC). (From Reynolds JEF(Ed): Martindale: The Extra Pharmacopoeia (electronic version). Micromedex, Inc, Engewood, CO, 1995.)

Registry Number: 7235-40-7

Descriptor UI: D019207

Alternative terms: beta Carotene; Carotene, beta; Betacarotene; beta-Carotene; Max-Caro; Max Caro; MaxCaro; Marlyn Brand of Betacarotene; Betacarotene Marlyn Brand; Provatene; Solgar Brand of Betacarotene; Betacarotene Solgar Brand; BellaCarotin; 3M Brand of Betacarotene; Betacarotene 3M Brand; Vetoron; Carotaben; Merck Brand of Betacarotene; Betacarotene Merck Brand; Hermal Brand of Betacarotene; Betacarotene Hermal Brand; Solatene; Roche Brand of Betacarotene; Betacarotene Roche Brand;

Allowable Qualifiers: administration & dosage; adverse effects; analogs & derivatives; analysis; antagonists & inhibitors; biosynthesis; blood; cerebrospinal fluid; chemical synthesis; classification; deficiency; diagnostic use; economics; genetics; history; immunology; isolation & purification; metabolism; pharmacokinetics; pharmacology; physiology; poisoning; radiation effects; secretion; standards; supply & distribution; therapeutic use; toxicity; urine; chemistry; contraindications; agonists;

Pharmacological Action: Vitamins;

Tree Number: D02.455.326.271.665.202.123; D02.455.426.392.368.367.379.249.050; D02.455.849.131.123; D23.767.261.050;

Online Note: use BETA CAROTENE (NM) to search BETA-CAROTENE 1980-96

History Note: 97; was BETA-CAROTENE (NM) 1980-96