Journal
FOOD BIOSCIENCE
Volume 46, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.fbio.2022.101596
Keywords
Pickering emulsion; Bamboo shoots nanocellulose; Emulsification process; Stability
Categories
Funding
- National Nature Science Foundation of China [32072177]
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In this study, medium internal phase O/W Pickering emulsions stabilized with bamboo shoots nanocellulose (BSNC) were successfully fabricated. The effects of BSNC content, oil-water ratio, and emulsification process on the structure, stability, and rheology of the emulsions were explored. The results showed that the physicochemical properties of the emulsions could be significantly improved through shearing.
In this work, the medium internal phase O/W Pickering emulsions stabilized with bamboo shoots nanocellulose (BSNC) was successfully fabricated. The nanocellulose extracted from bamboo shoots with an average width of 56.37 nm and height of 7.44 nm showed great potential as an emulsifier in the Pickering emulsions. The effects of BSNC content, oil-water ratio and emulsification process on the structure, stability and rheology of the resultant Pickering emulsions was explored. The obtained emulsion with the BSNC content of 0.5 wt% at the oil to water volume ratio of 5:5 had a lower particle size of around 25 mu m. With the increasing BSNC content, the emulsions presented increased droplet size, and even demulsification occurred. Interestingly, the physicochemical prop-erties of the emulsions could be significantly improved through twice shearing, which effectively reduced droplet size. The surface coverage was above 100% for the Pickering emulsions stabilized with the BSNC content of 0.5%-1.1%. With the increasing BSNC content, the apparent viscosity was increased first and then decreased, and all emulsions showed elastic behaviors. This work would provide theoretical guidance for preparing medium or high internal phase Pickering emulsions stabilized with nanocellulose.
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