Journal
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
Volume 155, Issue -, Pages 273-285Publisher
ELSEVIER
DOI: 10.1016/j.ijbiomac.2020.03.219
Keywords
Starch nanocrystals; Alkaline treatment; Pickering emulsion; Stability; Droplet size
Funding
- National Natural Science Foundation of China [31571794, 31560437]
- Six Talent Peaks Project in Jiangsu Province [NY-128]
- National First-class Discipline Program of Food Science and Technology [JUFSTR20180204]
- Guangxi Science and Technology Major Project [guikeAA17202029]
Ask authors/readers for more resources
In this work, Pickering emulsions were successfully prepared using a new Pickering stabilizer prepared from starch nanocrystals by alkaline treatment. Starch nanocrystals produced from different sources (waxy maize starch, NWS; normalmaize starch, NCS) were treated with ammonia to investigate the differences in emulsifying properties of the resulting starch nanocrystals (TSNCnc, produced from NCS; TSNCwc, produced from NWS). The results of visual observation and confocal laser scanning microscopy revealed that alkaline treatment increased the Pickering-stabilizing capacity of starch nanocrystals, irrespective of starch type. The droplet size of Pickering emulsion stabilized by TSNCwc was about 5.29 mu m, while droplets stabilized by TSNCnc were about 70.52 mu m. The big difference between the droplet size of emulsions stabilized by TSNCnc and TSNCwc was attributed to the structural differences between the two kinds of maize starch. The droplet size of Pickering emulsion stabilized by TSNCwc was significantly smaller than that of Pickering emulsion stablilized by SNCwc. Zetasizer, transmission electron microscopy and scanning electron microscopy results showed that alkaline treatment decreased the particle size of starch nanocrystals. The present study paves the way for finding new approaches to prepare starch nanocrystals-based Pickering emulsions possessing small droplet sizes. (C) 2020 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available