Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization.

Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization. Research Abstract Details 

Research Abstract Table of Contents

Jump to the:

Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization. Abstract Text:

Seungok Yang,Seungwook Lee,Hyun Chung,Jaehwan Lee,

Effects of photosensitizers including riboflavin, chlorophyll b, or methylene blue on the stability of daidzein and genistein were studied in model systems by high-performance liquid chromatography (HPLC). Concentration of daidzein and genistein in 80% methanol with riboflavin under light for 7 h was significantly decreased with the apparent 1st-order rate constants of 0.234 and 0.193/h, respectively, (P < 0.05), while those without riboflavin under light did not change significantly (P > 0.05). The stability of isoflavone aglycones in the dark did not change significantly irrespective of the presence of riboflavin (P > 0.05). The concentrations of daidzein and genistein in chlorophyll b or methylene blue model systems under light were not significantly different from those in the dark for 7 h (P > 0.05). Addition of sodium azide increased the stability of daidzein and genistein in riboflavin photosensitization with concentration dependent manner. However, the protective effects of beta-carotene addition on the photodegradation of isoflavones were not high. The stability difference of daidzein and genistein in riboflavin photosensitization may be due to the high reactivity of riboflavin through type I pathway, although singlet oxygen may be involved in part.

Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization. Publishing Authors By Initials

S Yang,S Lee,H Chung,J Lee,

For similar abstracts research abstracts see: abstracts research

PUBMED ID PMID:

MEDLINE DATE:

Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization. Journal Published:

PUBLICATION TYPE: Research Support, Non-U.S. Gov

Journal: Journal of food science

VOLUME: 73

Page Numbers: C100-5

Journal Abbreviation: J. Food Sci.

ISSN: 1750-3841

DAY: 26

MONTH: Mar

YEAR: 2008

Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization. Information

Number of References:

LANGUAGE: eng

NlmUniqueID: 14052

Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization. Keywords Mesh Terms:

KEYWORDS:

MESH TERMS:

Chemical & Substance for Abstract: Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization. Information

Substance Name:

Registry Number:

Grant and Affiliation Information for Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization.

AFFILIATION: Dept. of Food Science and Technology, Seoul Natl. Univ. of Technology, Seoul, Korea.

Country: United States

AGENCY:

GRANT:

ACRONYM:

MEDLINETA: J Food Sci

REFSOURCE:

DATABASENAME:

ACCESSION NUMBER:

Number Hits: 0

Stability of isoflavone daidzein and genistein in riboflavin, chlorophyll b, or methylene blue photosensitization Related Publications

• A differential response of two putative mammalian circadian regulators, mper1 and mper2, to light.
• Actual Conditions and Countermeasure of Yun-bian Old Men's Health.
• Aspirin changes the secretion rate and amino acid composition of human small intestinal mucin in subjects with ileal conduits.
• Bone morphogenetic protein-2 facilitates expression of chondrogenic, not osteogenic, phenotype of human intervertebral disc cells.
• Channel architecture in maltoporin: dominance studies with lamB mutations influencing maltodextrin binding provide evidence for independent selectivity filters in each subunit.
• Compensation. Costly to a fault.
• Design and feasibility of quick EXAFS scans for a 'broomstick' double-crystal monochromator at PLS beamline.
• Directed evolution of the lambda receptor of Escherichia coli through affinity chromatographic selection.
• Effects of dietary vitamin E supplementation on lipid oxidation and volatiles content of irradiated, cooked turkey meat patties with different packaging.
• Exclusion of high-molecular-weight maltosaccharides by lipopolysaccharide O-antigen of Escherichia coli and Salmonella typhimurium.
• Family decision making for elderly patients in the intensive care unit.
• Identification of an osteogenic protein-1 responsive element in the aggrecan promoter.
• Impairment of conjunctival glutathione secretion and ion transport by oxidative stress in an adenovirus type 5 ocular infection model of pigmented rabbits.
• Inactivation of the PTEN gene protein product is associated with the invasiveness and metastasis, but not angiogenesis, of breast cancer.
• Isolation, by affinity chromatography, of mutant escherichia coli cells with novel regulation of lamB expression.
• Longitudinal clivus fracture associated with trapped basilar artery: unusual survival with good neurological recovery.
• MPer1 and mper2 are essential for normal resetting of the circadian clock.
• Model construction on quality of family caregiving in the elderly.
• Nonredundant roles of the mPer1 and mPer2 genes in the mammalian circadian clock.
• Photoionization studies of sulfur radicals and products of their reactions.
• Posterior transarticular screw fixation for chronic atlanto-axial instability.
• Reciprocal regulation of haem biosynthesis and the circadian clock in mammals.
• Restoration of a loose implant supported crown: a case report.
• Significance of chronic epilepsy in glial tumors and correlation with surgical strategies.
• The circadian gene Period2 plays an important role in tumor suppression and DNA damage response in vivo.
• The effects of permeation enhancers on the surface morphology of the rat nasal mucosa: a scanning electron microscopy study.
• The influence of maltoporin affinity on the transport of maltose and maltohexaose into Escherichia coli.
• Tissue-specific expression, heat inducibility, and biological roles of two hsp16 genes in Caenorhabditis elegans.
• Up-regulation of MUC5AC and MUC5B mucin genes in chronic rhinosinusitis.
• [Expression of MUC3, MUC5AC, MUC6 and epidermal growth factor receptor in gallbladder epithelium according to gallstone composition]