摘要:
Provided are a high-quality curcumin product, a production method therefor and an application thereof. The high-quality curcumin product has low solvent residue, good fluidity, and a high bulk density. The method for producing the product comprises the following steps: using a turmeric extract as a raw material, adding a certain proportion of a crystallization agent, dissolving at high temperature, then continuing heating or refluxing, cooling and crystallization, and then centrifuging or filtering to obtain crude curcumin, and further drying to obtain high-quality curcumin. The high-quality curcumin can be used as an additive for food, medicine, feed, cosmetics, etc.
摘要:
The present invention relates to: - an adduct between a Lewis acid, preferably aluminum trichloride, iron trichloride, or zinc dichloride, and a hydrosilane; - a method for preparing same; and - use of same in a reaction for reducing, particularly, an aldehyde, a ketone, an α,β-unsaturated ketone, an imine, or an α,β-unsaturated imine.
摘要:
This invention provides a compound having the structure wherein α, &bgr;, X, Y, and R1-R11 are defined herein. This invention also provides a pharmaceutical composition comprising the above compounds, a method of inhibiting the activity and/or levels of a matrix metalloproteinase (MMP), a method of inhibiting the production of a cytokine in a population of cells, a method of inhibiting the production of a growth factor in a population of cells, and a method of inhibiting NF&kgr;-B activation in a population of cells.
摘要:
This invention provides a compound having the structure wherein α, &bgr;, X, Y, and R1-R11 are defined herein. This invention also provides a pharmaceutical composition comprising the above compounds, a method of inhibiting the activity and/or levels of a matrix metalloproteinase (MMP), a method of inhibiting the production of a cytokine in a population of cells, a method of inhibiting the production of a growth factor in a population of cells, and a method of inhibiting NF&kgr;-B activation in a population of cells.
摘要:
The invention relates to a method for producing curcumin, characterized in that the boron-curcumin complex formed after condensation is isolated by filtration. The invention also relates to monohydrate curcumin and to methods for converting monohydrate curcumin into anhydrous curcumin and vice versa.