Abstract
Turmeric products have many useful physiological functions and are widely used as health food and food ingredient. Here, we report the use of HPLC-ESI-MS/MS to simultaneously quantify bisacurone and three curcuminoids (curcumin, demethoxycurcumin, and bisdemethoxycurcumin) in turmeric products (high viscosity liquid, granular powder, tablet, and solution). The results showed that the standard values and measured values of curcumin in each product were almost same. Demethoxycurcumin and bisdemethoxycurcumin were contained in each products. Meanwhile, the content of bisacurone differed greatly among the products. In particular, the highest amount of bisacurone was found in the turmeric product A (high viscosity liquid, 9.48 g/100 g product). It would become important to consider the bisacurone content in turmeric products.
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