期刊
FOOD HYDROCOLLOIDS
卷 121, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodhyd.2021.107004
关键词
Protein nanocages; Design; Interior cavity; Encapsulation; Bioactive compounds
资金
- National Key R&D Program of China [2016YFD0400203]
- National Natural Science Foundation of China [31671881, 31972102, 31901683, 31730069, 31972018]
- Fundamental Research Funds for the Central Universities [XDJK 2019B028]
- Chongqing Research Program of Basic Research and Frontier Technology [cstc2018jcyjAX0697]
- Natural Science Foundation of Chongqing, China [cstc2020jcyj-msxmX0087]
- Chongqing ecological fishery industry technology system project
Protein nanocages are three-dimensional shell-like containers assembled from multiple subunits in high symmetry, with a homogeneous chamber segregated by protein walls. They are increasingly being explored as nano-vehicles for encapsulating active compounds or drugs to enhance their properties and bioavailability. Various strategies for molecular encapsulation within protein nanocages have been summarized, with a focus on the encapsulation and delivery of food bioactive compounds. Despite challenges such as low yields and high costs, further research is necessary for the development of protein nanocages as novel nano-vehicles for food active compounds.
Protein nanocages, usually assembled from multiple subunits in a high symmetry, are three-dimensional shell-like containers, which possess an intrinsic homogeneous chamber that is segregated from the bulk environment by protein walls. Recently, due to the superiority of protein nanocage in physicochemical property and unique structure features, the exploitation of protein cage-like nanoparticles as nano-vehicles for active compounds or drug encapsulation to improve their physicochemical properties, thermal- and photo-stability, and bioavailability have become a subject of increasing interest in multiple fields. Herein, this review presents several types of natural protein nanocages from source, structure, function to their physicochemical properties, and gives a brief introduction to the novel protein nanocage design. Then, the main strategies and techniques for molecular encapsulation within protein interior cavity have been summarized, including co-assembly strategy, reversible disassembly/reassembly method, flexible pore mediated encapsulation, diffusion/binding encapsulation, and molecule-induced assembly strategy. Last, we reviewed the practical application of natural and designed protein nanocages, especially ferritin, for small molecular compound loading, and mainly focused on the encapsulation and delivery of food bioactive compounds. Notably, novel encapsulation strategies (such as Urea-, temperature-mediated approaches) and novel designed protein nanocages are proved to be more advantageous in bioactive compounds encapsulation. Despite the progress in molecule encapsulation and delivery has been achieved, practical applications of protein nanocages still remain challenges such as low yields and high costs. Thus, further research is necessary for the exploitation and development of protein nanocages as novel nano-vehicles for food active compounds.
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