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KMID : 0380620200520020200
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Korean Journal of Food Science and Technology
2020 Volume.52 No. 2 p.200 ~ p.203
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Effect of stigmasterol in liposome bilayer on the stabilization of encapsulated ascorbic acid
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Lee Dong-Uk
Park Hye-Won
Lee Seung-Cheol
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Abstract
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The effect of stigmasterol (SS), a phytosterol, in the liposome bilayer on the stability of encapsulated ascorbic acid (ASA) was evaluated. Liposomes, consisting of phosphatidylcholine (PC) and SS, and ASA were encapsulated by the dehydration/rehydration method. The average particle size of the liposome increased with increasing SS content. SS significantly increased the stability of encapsulated ASA. For example, ASA remaining in the liposomes of 100:0, 90:10, and 70:30 (PC:SS, w/w) ratios was 34.12%, 49.88%, and 58.58%, respectively, after storage for 8 days at 4°C, while only 7.66% ASA remained in the buffer under the same conditions. These results indicated that SS in liposomes increased the stability of encapsulated ASA.
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KEYWORD
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liposome, ascorbic acid, stigmasterol, stability
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