In the Apcmin mouse model, the blackberry anthocyanin, cyanidin-3-glucoside, as well as an anthocyanin enriched extract of bilberry decreased numbers of small intestine adenomas [ 28].
The aqueous extract showed the highest extracting yield (13.7%), whereas the TOF enriched extract showed the lowest one (0.16%) (Table 1).
The combination of reflux extraction with column chromatography was successfully used for the preparation of andrographolide enriched extract.
The current study was designed to investigate the protective effects of alkaloids enriched extract from Dendrobium Nobile Lindl.
Therefore, this study investigated the optimization of A. paniculata extraction in a reflux system, and the fractionation of the plant crude extract for andrographolide enriched extract using column chromatography.
This study was designed to address this issue by studying the polyphenols enriched extract (RPE) of Rosa rugosa Thunb in diabetic rats.
The precipitate was separated and yielded TOF enriched extract which was dissolved in water.
This enriched extract was analyzed using new-generation sequencing machines, which produced a draft sequence with approximately 1.3× coverage - that is, on average, each base pair in the genome was sequenced 1.3 times.
This result could be explained by the presence of active compounds diluted and/or masked by various components in the methanolic extract and which are more accessible and/or more concentrated in the TOF- enriched extract.
Alkaloids enriched extract was repeatedly fractionated on silica gel 60 (0,063–0,200 mm, Merck, Germany) eluting with solvents of increasing polarity (mixture of CH2Cl2/MeOH 50 : 50 to 100% MeOH followed by MeOH : H2O 90 : 10 and MeOH : acetic acid 90 : 10).
We therefore proceeded to fractionation of this enriched extract by Atmospheric Pressure Liquid Chromatography (APLC) and Medium Pressure Liquid Chromatography (MPLC) followed by gel filtration on Sephadex LH20 to purify this enriched alkaloid fraction.
