Rosa laevigata flower extract as well as medicine thereof, and preparation method and application thereof
A kind of white wood fragrance flower and extract technology, applied in the field of herbal medicine and medicine
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Embodiment 1
[0019] Preparation of PXS65.
[0020] Take white wood incense [ Aquilaria sinensis (Lour.) Spreng.] 50 g of dried flower samples were crushed and extracted with distilled water (0.5 L), ultrasonically extracted in a 60°C water bath for 30 min, repeated 3 times, combined and filtered, and the filtrate was discarded. For the sample extracted with distilled water, continue to add 90% ethanol, ultrasonically extract in a 60°C water bath for 30 min, repeat 3 times, combine and filter, recover the solvent, and obtain 2.43 g of ethanol extract (code PXS65).
Embodiment 2
[0022] Preparation of PXS66, PXS66-1, PXS66-2, PXS66-3 and PXS66-4.
[0023] Take white wood incense [ Aquilaria sinensis (Lour.) Spreng.] dried flower sample 1.15 kg, crushed and extracted with 90% ethanol (2 L), ultrasonically extracted in a 60°C water bath for 30 min, repeated 4 times, combined and filtered, recovered the solvent, and obtained the ethanol extract ( No. PXS66) 174.2 g. Take 172.0 g of PXS66, add water (1 L) to make a suspension, extract with petroleum ether (1 L × 3), recover petroleum ether, and obtain 21.15 g of petroleum ether extraction fraction (No. PXS66-1); after petroleum ether extraction Continue to extract the aqueous phase solution with ethyl acetate (1 L × 3), recover ethyl acetate, and obtain 23.0 g of the ethyl acetate extraction fraction (No. PXS66-2); the aqueous phase solution after ethyl acetate extraction, continue to use Extracted with n-butanol (1 L × 3), recovered n-butanol, and obtained 54.03 g of n-butanol extraction fraction (No. ...
Embodiment 3
[0025] Inhibitory effect of PXS65 on cancer cell growth.
[0026] Cancer cytotoxic activity was tested by MTS method [Yang J, Su Y, Luo J-F, Gu W, Niu H-M, LiY, Wang Y-H, Long C-L. New amide alkaloids from Piper longumfruits. Natural Products and Bioprospecting, 2013, 3, 277-281], cisplatin and paclitaxel were used as positive controls. The results of the cytotoxic activity test are shown in Table 1. The results showed that PXS65 was effective against lung cancer SPC-A-1, lung cancer NCI-H520, lung cancer A549, cervical cancer Hela, human neuroblastoma SH-SY5Y, ovarian cancer SK-OV-3, leukemia MT4 and prostate cancer PC-3, etc. Cancer cell lines have significant inhibitory activity, the half inhibitory concentration (IC 50 ) were less than 1 μg / mL; the inhibitory effect on cancer cell lines such as colon cancer SW480, breast cancer MCF-7, leukemia HL-60 and colon cancer Caco2, as well as human normal lung epithelial BEAS-2B cells was weak, and its IC 50 The value is greate...
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