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Determination of macrocyclic ellagitannin oenothein B in plant materials by HPLC-DAD-MS: method development and validation.
TLDR
It is shown that ultrasonic-assisted extraction at 40 °C in 15 min using water are the most optimal conditions for OeB extraction and the first validated HPLC method for quantification was developed and validated.
Polyphenolic Profile, Antioxidant and Anti-Inflammatory Activity of Eastern Teaberry (Gaultheria procumbens L.) Leaf Extracts
TLDR
Dry leaf extracts of eastern teaberry were evaluated as a source of bioactive phytocompounds through systematic activity testing and phytochemical profiling, showing significant activity levels, high phenolic contents and high extraction yields.
Determination of polyphenolics in extracts of Potentilla species by high-performance thin-layer chromatography photodensitometry method.
TLDR
The proposed HPTLC-photodensitometry method was found to be relatively simple, specific, precise, sensitive and accurate and may be used for the routine assay of simultaneous determination of TRS, MBR and EA in other extracts and phytomedicines containing Potentilla species.
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