Composition, Crocus sativus pigment active site, and uses of composition and active site
The technology of saffron pigment and active parts is applied in the field of compositions, active parts of saffron pigments and their uses, and can solve the problems of high effective dose, unknown composition and content, low purity of saffron-enriched parts, and the like, and achieves a simple preparation process. Effect
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Embodiment 1
[0096] Embodiment 1: the preparation method of gardenia saffron pigment active part
[0097] Take 40.0 kg of dried and mature fruits of Gardenia jasminoides, after being crushed properly, heat and reflux extract with 4 times the amount of 60% ethanol for 3 times, each time for 2 hours. The extracts were combined, and the solvent was evaporated under reduced pressure to obtain 6.2 kg of the total gardenia extract; the extract was dissolved in an appropriate amount of water, centrifuged, and subjected to macroporous resin open column chromatography (20.0 × 90 cm), followed by 4 times the volume of the column bed Water, 30%, 50%, 70%, and 95% ethanol were used for gradient elution, and each part of the eluate was collected, and the solvent was recovered under reduced pressure, respectively, to obtain about 4.5kg of water elution and 30% ethanol elution combination, 50 The fraction eluted with % ethanol was 710.0 g, the fraction eluted with 70% ethanol was 150.0 g, the fraction el...
Embodiment 2
[0098] Example 2: Isolation and identification of main components in active parts of gardenia saffron pigments
[0099] The UPLC characteristic collection of spectra of the gardenia saffron pigments active site prepared in embodiment 1 is as follows figure 1 shown. Under the guidance of the characteristic map, through ODS column chromatography, RP-HPLC preparation liquid phase separation means, using UV, MS, NMR and other analysis and identification methods, identified crocetin bis-β-D-gentiobioside and crocetin-β -D-glucopyranosyl-β-D-gentiobioside, crocetin bis-β-D-glucopyranoside, 13Z-crocetin bis-β-D-gentiobioside, neocrocin B, crocetin Mono-β-D-gentiobioside, 13Z-crocetin-8-O-β-D-gentiobioside, 13Z-crocetin-8′-O-β-D-gentiobioside, crocetin Structures of these nine compounds of mono-β-D-glucopyranoside.
[0100] Under the same chromatographic conditions as the UPLC characteristic map of the active part of gardenia saffron pigments, the isolated compounds were identified...
Embodiment 3
[0150] Example 3: GJ-4, the active part of gardenia saffron pigments, improves learning and memory impairment in mice induced by scopolamine (platform test)
[0151] 3.1 Principle of platform jumping experiment
[0152] The platform experiment device is a rectangular reflection box with a size of 10cm×10cm×60cm. It is divided into 5 rooms with black plastic boards. The bottom surface is covered with copper grids with a distance of 0.5cm. It can be energized, and the voltage intensity is controlled by a transformer. A wooden platform with a height and a diameter of 4.5 cm was placed, and a 36V alternating current was applied during the experiment. After the mice received the electric shock, their normal reaction was to jump back to the safe platform to avoid the noxious stimulus. On the first day without electricity, the mice were put into the reflex box to move freely for 5 minutes to get familiar with the environment; after 24 hours, the copper grid power supply (36V alternat...
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