期刊
CARBOHYDRATE POLYMERS
卷 277, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carbpol.2021.118835
关键词
Nanocellulose; Pickering emulsion; In vitro gastrointestinal digestion; Free fatty acid release
资金
- National Key Research Program of China [2020YFC1910301]
- Innovation Pilot Project of Integration of Science, Education and Industry of Shandong Province [2020KJC-ZD06]
- Foundation of State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences [ZZ20200107, ZZ20200118, ZZ20190111]
- National Natural Science Foundation of China [22001140]
- Natural Science Foundation of Shandong Province, China [ZR2020QB002]
- State Key Laboratory of Pulp and Paper Engineering [201831]
- National Science and Technology Major Project [2017ZX07402004]
The effect of three different nanocelluloses (varying in crystalline structure and morphology) on lipid digestion in vitro was investigated. It was found that both the crystalline structure and morphology of nanocellulose influenced the degree of lipid digestion, with morphology having a greater effect. The release of free fatty acids in the small intestine was ranked in the order of CNCs-I, CNCs-II, and CNFs. These findings suggest that using nanocellulose as a food-grade particle stabilizer can modulate the digestion of Pickering emulsified lipids, which is beneficial for the development of functional foods.
The effect of three nanocellulose (various in crystalline allomorph and morphology) on lipid in vitro gastrointestinal digestibility was investigated. Corn oil-in-water emulsions were prepared by CNCs-I, CNCs-II and CNFs respectively. The variations of droplets diameter D[4,3], zeta potential, and microstructure were measured during gastrointestinal digestion (mouth, stomach and small intestine), and the free fatty acid (FFA) released in the small intestine phase were examined. The FFA-released test results indicated that both crystalline allomorph and morphology of nanocellulose affected the degree of lipid digestion, especially the morphology. FFA released amount was ranked in the order of CNCs-I (56.60%), CNCs-II (48.67%) and CNFs (28.21%). This is mainly due to the difference in the self-assembly behavior of nanocellulose at the interface. Our findings provide an innovative solution that using nanocellulose as food-grade particle stabilizer to modulate the digestion of Pickering emulsified lipids, which would benefit the development of given functional foods.
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