Abstract: A method for preparing a water-soluble curcumin liquid includes the following steps: A) dissolving curcumin, vitamin C and ascorbyl palmitate in an ethanol aqueous solution, evaporating ethanol under reduced pressure, and vacuum drying to obtain a curcumin-vitamin C-ascorbyl palmitate co-crystal; and B) high-speed emulsifying the curcumin-vitamin C-ascorbyl palmitate co-crystal and a water-soluble colloidal solution that includes an emulsifying additive under vacuum, sequentially conducting a two-stage wet grinding, a homogenization and a potential adjustment to obtain the water-soluble curcumin liquid.

Abstract: A method for detecting an outlier based on a multiple pivots index, comprising: a pivot selection step, of reading a data set, and selecting multiple pivots from the data set to form a pivot set (S11); an index establishment step, of calculating the distance between each object in the data set and the selected multiple pivots, using the distance as a coordinate to form multi-dimensional data space, and establishing an index with the multi-dimensional data space (S12); an outlier detection step, of dividing the index into data blocks, and performing a detection on the data blocks for outliers, block by block (S13). Further provided is a system for detecting an outlier based on a multiple pivots index.