Journal
LWT-FOOD SCIENCE AND TECHNOLOGY
Volume 165, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.lwt.2022.113700
Keywords
Lutein; Color stability; Phenolic acids; Food processing methods
Categories
Funding
- Key R & D projects in Anhui Province [201904a06020050]
- Major Science and Technology Projects of Anhui Province [17030801018]
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This study investigated the effects of ten phenolic acids on the stability of lutein and found that rosmarinic acid, gallic acid, caffeic acid, and tannic acid significantly improved lutein stability. FTIR and NMR analyses revealed that lutein could interact with these phenolic acids through hydrogen bonds and van der Waals forces.
The instability of lutein limited its application in the food industry. The study investigated the effects of ten phenolic acids (tannic acid, gallic acid, ferulic acid, syringic acid, rosmarinic acid, 3, 4-dihydroxybenzoic acid, caffeic acid, vanillic acid, coumalic acid, and chlorogenic acid) on the physical and chemical stability of lutein under dark/light and different temperatures. Moreover, the lutein stability with phenolic acids in food models was further assessed in different food processing methods and subsequent biscuit storage. The addition of ros-marinic acid, gallic acid, caffeic acid, and tannic acid significantly improved lutein stability during different conditions. Fourier transform infrared (FTIR) and nuclear magnetic resonance (NMR) analyses indicated that lutein could interact with selected phenolic acids (rosmarinic acid, gallic acid, caffeic acid, and tannic acid) through hydrogen bonds and van der Waals forces. Additionally, the lutein under the existence of selected phenolic acids presented strong thermal stability in different food processing methods. Compared with the storage for 9 days at 27 degrees C, these phenolic acids also exhibited significant protective effects on lutein in biscuits after the storage for 3 days.
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