期刊
JOURNAL OF OLEO SCIENCE
卷 69, 期 3, 页码 219-226出版社
JAPAN OIL CHEMISTS SOC
DOI: 10.5650/jos.ess19235
关键词
embedding rate; beta-cyclodextrin; rheology; pectin; emulsion stability; shear rate
资金
- National Natural Science Foundation of China [31801504]
- Fundamental Research Funds for the Central Universities of China [PA2019 GDPK0064]
Microcapsules were constructed with starch sodium octenyl succinate (SSOS), beta-cyclodextrin (beta-CD), and pectin walls and peony seed oil cores. A theological phenomenon occurred in which the emulsion initially behaved like a shear-thickening fluid and then a shear-thinning fluid within a shear range. The emulsion exhibited good stability under low amplitude stress; however, as amplitude increased the concentration of pectin played an important role in maintaining the stability of the emulsion system. The optimum embedding yield of peony seed oil (92.5%) was achieved with a ratio of 70% SSOS, 22.5% beta-CD, and 7.5% pectin. This ratio produced 4.521 mu m particles with the lowest surface-oil content (2.60%) and moisture content (1.76%). The peony seed oil microcapsules were spherical with smooth surfaces and a synchronous thermogravimetric analysis showed they possessed good thermal stability. Encapsulation increased the induction period to 5-7 times that of unencapsulated peony seed oil.
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