Acetylated Morinda officinalis water extract, and preparation method and application thereof

[0017] The invention provides a preparation method of acetylated Morinda officinalis water extract, comprising the following steps:

[0018] Take 30g of dried Morinda officinalis water extract, mix with 200mL acetic anhydride and 2g sulfamic acid, react at 10-30°C for 30min, raise the temperature to 60°C-90°C, and react for 20min.

[0019] In the present invention, the preparation method of the water extract of Morinda officinalis is as follows: using water as a solvent to extract Morinda officinalis by reflux. The present invention has no special limitation on the specific parameters of the reflux extraction, and the reflux extraction operation well known to those skilled in the art can be used. Specifically, in the present invention, the solid-liquid ratio of Morinda officinalis and water is preferably 1 : 10, the extraction time per 100g Morinda officinalis is preferably 1.5~3h, more preferably 2h. The present invention has no special limitation on the source of Morinda offic

[0028] Take 30g of dried Morinda officinalis water extract, mix with 200mL acetic anhydride and 2g sulfamic acid, react at 15°C for 30min, raise the temperature to 90°C, react for 20min, concentrate and dry.

[0030] Take 30g of dried Morinda officinalis water extract, mix with 200mL acetic anhydride and 2g sulfamic acid, react at 25°C for 30min, raise the temperature to 60°C, react for 20min, concentrate and dry.