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Molecules 2009, 14(9), 3486-3493; doi:10.3390/molecules14093486

Physicochemical Properties and Antioxidant Activities of Luteolin-Phospholipid Complex

2,* , 3
1 College of Light Industry and Food Science, South China University of Technology, Guangzhou 510640, China 2 School of Food Science, Henan Institute of Science and Technology, Xinxiang 453003, China 3 College of Grain and Food, Henan University of Technology, Zhengzhou 450052, China
* Author to whom correspondence should be addressed.
Received: 10 July 2009 / Revised: 12 August 2009 / Accepted: 24 August 2009 / Published: 9 September 2009
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luteolin and phospholipid complex was prepared to improve the lipophilic properties of luteolin. The physicochemical properties of the complex were analyzed by ultraviolet-visible spectrometry (UV), infrared spectrometry (IR), X-ray diffractometry (XRD) and differential scanning calorimetry (DSC). The results showed that luteolin and phospholipid in the complex were joined by non-covalent-bonds and did not form a new compound. It was found that the complex was an effective scavenger of DPPH radicals, with an IC50 value of 28.33 μg/mL. In the Rancimat antioxidant test using lard oil as substrate, the complex also showed the strong antioxidant activity.
Keywords: luteolin; phospholipid; flavonoid; physicochemical property; antioxidant luteolin; phospholipid; flavonoid; physicochemical property; antioxidant
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Xu, K.; Liu, B.; Ma, Y.; Du, J.; Li, G.; Gao, H.; Zhang, Y.; Ning, Z. Physicochemical Properties and Antioxidant Activities of Luteolin-Phospholipid Complex. Molecules 2009, 14, 3486-3493.

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