Five kinds of microcapsules were prepared by spray drying method, using Lycium ruthenicum Murr anthocyanin as core material and RS, MRS, MRS-MD, MRS-GL and MRS-GA as wall materials. By measuring the embedding efficiency of microcapsules, studying the storage stability, observing the appearance and simulating the digestion of the gastrointestinal tract, the differences of microcapsules made with different wall materials were analyzed. The results showed that different wall materials had different effects on the quality of microcapsules, such as the embedding efficiency, storage stability, morphology and slow-release characteristics. The highest embedding efficiency (83.7%) was obtained when MRS-GL was used as the wall material. The degradation rate of microcapsules with MRS-GL and MRS-GA as the wall material were relatively small and conformed to the secondary degradation kinetic model. Moreover, their stability was excellent and could effectively prevent the influence of external environmental factors on anthocyanins. Some of the microcapsules with MRS-GL, MRS-GA, and MRS-MD as wall materials appeared smooth and spherical. The microcapsules made with MRS-MD could improve the bioavailability of anthocyanins and reduce the degradation of anthocyanins by intestinal juice, which could ensure its absorption and utilization in the human body. There was a certain correlation between the morphology, embedding efficiency rate and particle stability.
CHEN Chengli
,
LI Fengquan
,
DIAO Qian
,
CHANG Xinyue
,
GONG Di
,
DONG Quan
. Effects of different wall materials on the stability and sustained-release characteristics of anthocyanin microcapsules of Lycium ruthenicum Murr[J]. Food and Fermentation Industries, 2020
, 46(16)
: 78
-85
.
DOI: 10.13995/j.cnki.11-1802/ts.023782
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