Study on the Hygroscopic and Moisturizing Properties of Glycerol Glycolipid Extracts from Six Species of Marine Macroalgae
The hydrophilic sugar group of glycerol glycolipids endows them with hygroscopic and moisturizing activity,and there is currently limited research on glycerol glycolipids in terms of hygroscopic and moisturizing properties.Based on this,six species of macroalgae,such as Bang-ia fusco-purpurea,Gelidium amansii,Gloiopeltis furcata,Gracilaria confervoides,Gracilaria sp.and Porphyra yezoensis,were selected for the extraction of glycerol glycolipids,and the hy-groscopic and moisturizing activity of the obtained glycerol glycolipid fractions was analyzed to provide basic data for the development of natural humectant.Compared with common moisture absorption and humectant,glycerol,sorbitol and sodium alginate,the hygroscopic activity of five seaweed glycerolipids,such as Gracilaria sp.,G.amansii,B.fusco-purpurea,P.yezoensis and G.confervoides,was better than that of sodium alginate.The hygroscopic activity of glyc-erolipids of both Gracilaria sp.and G.amansii was higher than that of sorbitol,and the hygro-scopic rate of G.amansii at 81%relative humidity was 1.7 times higher than that of glycerol.Among the six seaweeds,glycerol glycolipids of G.amansii and Gracilaria sp.had good mois-turizing activities,which were better than moisturizing activities of sorbitol and sodium alginate.And the moisturizing rate of glycerol glycolipids of G.amansii and Gracilaria sp.was main-tained at 20.8%and 19.3%at 72 h,respectively,which was significantly higher than that of sorbitol and sodium alginate,and was close to that of glycerol.In the moisturizing study of fresh-cut apple,glycerol glycolipid fractions of B.fusco-purpurea,G.amansii,G.furcata and Gracilaria sp.showed a certain moisturizing effects,and the water loss rate of apple was between 41.9%and 51.7%,which was lower than that of the blank control group.The above results indicate that these glycerol glycolipids of six species of marine macroaglae have good hygroscopic or moisturizing activity.
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万方数据
维普
