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

Physicochemical Properties and Antioxidant Activities of Luteolin-Phospholipid Complex

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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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Abstract

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 3.0).
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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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