Lobetyolinin exhibits DPPH radical scavenging activity.
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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: email@example.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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Quality evaluation of medicinally-used Codonopsis species and Codonopsis Radix based on the contents of pyrrolidine alkaloids, phenylpropanoid and polyacetylenes.[Pubmed: 24203345
METHODS AND RESULTS:
A comparative study of 56 specimens of three medicinally-used Codonopsis taxa collected from China and 54 commercial samples of Codonopsis Radix available in Chinese, Japanese and Korean markets was carried out by quantitative analysis of seven major components: codonopyrrolidium B (1), codonopyrrolidium A (2), tangshenoside I (3), cordifolioidyne B (4), Lobetyolinin (5), lobetyolin (6) and lobetyol (7).
The quantitative results, based on a well-established HPLC-DAD method, indicated that the contents of these seven compounds varied considerably among the samples, not only inter-species but also intra-species. C. pilosula and C. pilosula var. modesta showed similar chemical compositions, while C. tangshen differed considerably from these two in chemical composition.