Phenylalanine betaine
Standard reference
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Providing storage is as stated on the product vial and the vial is kept tightly sealed, the product can be stored for up to
24 months(2-8C).
Wherever possible, you should prepare and use solutions on the same day. However, if you need to make up stock solutions in advance, we recommend that you store the solution as aliquots in tightly sealed vials at -20C. Generally, these will be useable for up to two weeks. Before use, and prior to opening the vial we recommend that you allow your product to equilibrate to room temperature for at least 1 hour.
Need more advice on solubility, usage and handling? Please email to: service@chemfaces.com
The packaging of the product may have turned upside down during transportation, resulting in the natural compounds adhering to the neck or cap of the vial. take the vial out of its packaging and gently shake to let the compounds fall to the bottom of the vial. for liquid products, centrifuge at 200-500 RPM to gather the liquid at the bottom of the vial. try to avoid loss or contamination during handling.
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Lanostane-type triterpenes from the mushroom Astraeus pteridis with antituberculosis activity.[Pubmed:
19067555 ]
METHODS AND RESULTS:
Bioassay-guided fractionation of an EtOH extract of the truffle-mimiking mushroom Astraeus pteridis led to the isolation and identification of three new (3-5) and two known (1, 2) lanostane triterpenes and Phenylalanine betaine (6). The structures of the isolates were elucidated on the basis of 1D and 2D NMR spectroscopic data, HRESIMS results, and X-ray crystallographic analysis.
CONCLUSIONS:
Compounds 5 and 1 showed moderate activity against Mycobacterium tuberculosis with MIC values of 34.0 and 58.0 microg/mL, respectively.
Molecular Nutrition & Food Research , 2015 , 59 (8) :1550–62.
Amino acid-derived betaines dominate as urinary markers for rye bran intake in mice fed high-fat diet--A nontargeted metabolomics study.[Pubmed:
25944556]
Bioprocessing of whole grain cereals may affect the bioavailability of phytochemicals associated with grain fiber and ultimately lead to different health outcomes.
METHODS AND RESULTS:
Here, we studied the impact of long-term feeding with intact and bioprocessed rye bran on the urinary phytochemical profile of mice.Nontargeted hydrophilic interaction chromatography-ESI-qTOF-MS metabolite profiling approach was applied on urine samples collected from three groups of diet-induced obese mice fed for 8 weeks with one of the three diets: high-fat (HF) control diet, HF diet enriched with intact rye bran, or HF diet enriched with bioprocessed rye bran. The most striking finding was the increased urinary excretion of several amino-acid derived betaines after both rye diets. These included proline betaine, alanine betaine, valine betaine, Phenylalanine betaine, pipecolic acid betaine, and trigonelline, but not glycine betaine. Furthermore, bioprocessing may have improved the bioavailability of rye-derived phytochemicals, as higher increase in, e.g. ferulic acid and benzoxazinoid metabolites were observed in urine of mice fed with bioprocessed than intact rye bran.
CONCLUSIONS:
Urinary excretion of various betaines was greatly increased in mice fed rye brans. Furthermore, bioprocessing of rye bran appears to serve as a beneficial way to improve the bioavailability of various phytochemicals.
