Title of article :
Preparation of lutein-loaded particles for improving solubility and stability by Polyvinylpyrrolidone (PVP) as an emulsion-stabilizer
Author/Authors :
Zhao، نويسنده , , Changdong and Cheng، نويسنده , , Hui and Jiang، نويسنده , , Pengfei and Yao، نويسنده , , Yijing and Han، نويسنده , , Jing، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2014
Abstract :
Lutein, a non-provitamin A carotenoid, possesses multiple valuable physiological functions. Unfortunately, its application is limited due to its poor water solubility and instability under adverse conditions. To expand the applied range of lutein, we developed lutein-loaded particles and characterized by differential scanning calorimetry, X-ray powder diffraction and Fourier transformed infrared spectroscopy and investigated the encapsulation efficiency, aqueous saturation solubility and stability. The results showed that the lutein-loaded particles possessed high encapsulation efficiency (93.8 ± 0.35%) and good water solubility (158 μg/ml). Compared with free lutein, the stability of the lutein-loaded particles against heat, light and oxygen was improved by 1.7 times, 3.3 times and 4.0 times, respectively. The results also indicated that lutein was embedded in PVP matrix in an amorphous state, and intermolecular hydrogen bonding was in existence between PVP, lutein and Tween 80, forming the main force assembling the lutein-loaded particles.
Keywords :
Intermolecular hydrogen bonding , Lutein , PVP , Tween 80
Journal title :
Food Chemistry
Journal title :
Food Chemistry