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CLC number: TS253.1

On-line Access: 2020-08-04

Received: 2020-04-02

Revision Accepted: 2020-06-02

Crosschecked: 2020-07-20

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Journal of Zhejiang University SCIENCE B 2020 Vol.21 No.8 P.611-627


Microencapsulation of immunoglobulin Y: optimization with response surface morphology and controlled release during simulated gastrointestinal digestion

Author(s):  Jin Zhang, Huan-Huan Li, Yi-Fan Chen, Li-Hong Chen, Hong-Gang Tang, Fan-Bin Kong, Yun-Xin Yao, Xu-Ming Liu, Qian Lan, Xiao-Fan Yu

Affiliation(s):  Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China; more

Corresponding email(s):   cwc528@163.com, zaastang@163.com

Key Words:  Immunoglobulin Y (IgY), Microencapsulation, Chitooligosaccharide (COS), Response surface methodology (RSM), Controlled release, Simulated gastrointestinal digestion (SGID)

Jin Zhang, Huan-Huan Li, Yi-Fan Chen, Li-Hong Chen, Hong-Gang Tang, Fan-Bin Kong, Yun-Xin Yao, Xu-Ming Liu, Qian Lan, Xiao-Fan Yu. Microencapsulation of immunoglobulin Y: optimization with response surface morphology and controlled release during simulated gastrointestinal digestion[J]. Journal of Zhejiang University Science B, 2020, 21(8): 611-627.

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author="Jin Zhang, Huan-Huan Li, Yi-Fan Chen, Li-Hong Chen, Hong-Gang Tang, Fan-Bin Kong, Yun-Xin Yao, Xu-Ming Liu, Qian Lan, Xiao-Fan Yu",
journal="Journal of Zhejiang University Science B",
publisher="Zhejiang University Press & Springer",

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%T Microencapsulation of immunoglobulin Y: optimization with response surface morphology and controlled release during simulated gastrointestinal digestion
%A Jin Zhang
%A Huan-Huan Li
%A Yi-Fan Chen
%A Li-Hong Chen
%A Hong-Gang Tang
%A Fan-Bin Kong
%A Yun-Xin Yao
%A Xu-Ming Liu
%A Qian Lan
%A Xiao-Fan Yu
%J Journal of Zhejiang University SCIENCE B
%V 21
%N 8
%P 611-627
%@ 1673-1581
%D 2020
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.B2000172

T1 - Microencapsulation of immunoglobulin Y: optimization with response surface morphology and controlled release during simulated gastrointestinal digestion
A1 - Jin Zhang
A1 - Huan-Huan Li
A1 - Yi-Fan Chen
A1 - Li-Hong Chen
A1 - Hong-Gang Tang
A1 - Fan-Bin Kong
A1 - Yun-Xin Yao
A1 - Xu-Ming Liu
A1 - Qian Lan
A1 - Xiao-Fan Yu
J0 - Journal of Zhejiang University Science B
VL - 21
IS - 8
SP - 611
EP - 627
%@ 1673-1581
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PB - Zhejiang University Press & Springer
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DOI - 10.1631/jzus.B2000172

immunoglobulin Y (IgY) is an effective orally administered antibody used to protect against various intestinal pathogens, but which cannot tolerate the acidic gastric environment. In this study, IgY was microencapsulated by alginate (ALG) and coated with chitooligosaccharide (COS). A response surface methodology was used to optimize the formulation, and a simulated gastrointestinal (GI) digestion (SGID) system to evaluate the controlled release of microencapsulated IgY. The microcapsule formulation was optimized as an ALG concentration of 1.56% (15.6 g/L), COS level of 0.61% (6.1 g/L), and IgY/ALG ratio of 62.44% (mass ratio). The microcapsules prepared following this formulation had an encapsulation efficiency of 65.19%, a loading capacity of 33.75%, and an average particle size of 588.75 μm. Under this optimum formulation, the coating of COS provided a less porous and more continuous microstructure by filling the cracks on the surface, and thus the GI release rate of encapsulated IgY was significantly reduced. The release of encapsulated IgY during simulated gastric and intestinal digestion well fitted the zero-order and first-order kinetics functions, respectively. The microcapsule also allowed the IgY to retain 84.37% immune-activity after 4 h simulated GI digestion, significantly higher than that for unprotected IgY (5.33%). This approach could provide an efficient way to preserve IgY and improve its performance in the GI tract.


结论:采用响应面法优化的微胶囊配方工艺为海藻酸钠浓度1.56%(15.6 g/L)、壳寡糖浓度0.61%(6.1 g/L)和IgY/海藻酸钠比率62.44%(质量比),由此制备的微胶囊包埋率达65.19%,负载率达33.75%,平均粒径为588.75 μm.壳寡糖涂层通过填充效应和静电相互作用使微胶囊表面更加光滑和连续,从而显著降低了模拟胃肠道消化过程中IgY的释放速率.微胶囊中IgY的模拟胃部控释和模拟肠道控释分别符合零级动力学方程和一级动力学方程(R2>0.99).微胶囊在模拟胃肠道消化4 h后的IgY免疫活性保持率达84.37%,远高于未进行微胶囊化保护的IgY(5.33%).


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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