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Górniewicz M, Wnuk D, Foryś A, Trzebicka B, Michalik M, Kepczynski M. Chondroitin Sulfate-Based Nanocapsules as Nanocarriers for Drugs and Nutraceutical Supplements. Int J Mol Sci 2024; 25:5897. [PMID: 38892083 PMCID: PMC11172538 DOI: 10.3390/ijms25115897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Revised: 05/21/2024] [Accepted: 05/22/2024] [Indexed: 06/21/2024] Open
Abstract
Oil-core nanocapsules (NCs, also known as nanoemulsions) are of great interest due to their application as efficient carriers of various lipophilic bioactives, such as drugs. Here, we reported for the first time the preparation and characterization of NCs consisting of chondroitin sulfate (CS)-based shells and liquid oil cores. For this purpose, two amphiphilic CS derivatives (AmCSs) were obtained by grafting the polysaccharide chain with octadecyl or oleyl groups. AmCS-based NCs were prepared by an ultrasound-assisted emulsification of an oil phase consisting of a mixture of triglyceride oil and vitamin E in a dispersion of AmCSs. Dynamic light scattering and cryo-transmission electron microscopy showed that the as-prepared core-shell NCs have typical diameters in the range of 30-250 nm and spherical morphology. Since CS is a strong polyanion, these particles have a very low surface potential, which promotes their stabilization. The cytotoxicity of the CS derivatives and CS-based NCs and their impact on cell proliferation were analyzed using human keratinocytes (HaCaTs) and primary human skin fibroblasts (HSFs). In vitro studies showed that AmCSs dispersed in an aqueous medium, exhibiting mild cytotoxicity against HaCaTs, while for HSFs, the harmful effect was observed only for the CS derivative with octadecyl side groups. However, the nanocapsules coated with AmCSs, especially those filled with vitamin E, show high biocompatibility with human skin cells. Due to their stability under physiological conditions, the high encapsulation efficiency of their hydrophobic compounds, and biocompatibility, AmCS-based NCs are promising carriers for the topical delivery of lipophilic bioactive compounds.
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Affiliation(s)
- Magdalena Górniewicz
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland;
- Doctoral School of Exact and Natural Sciences, Jagiellonian University, Prof. S. Łojasiewicza 11, 30-348 Krakow, Poland
| | - Dawid Wnuk
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland; (D.W.); (M.M.)
| | - Aleksander Foryś
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland; (A.F.); (B.T.)
| | - Barbara Trzebicka
- Centre of Polymer and Carbon Materials, Polish Academy of Sciences, 41-819 Zabrze, Poland; (A.F.); (B.T.)
| | - Marta Michalik
- Department of Cell Biology, Faculty of Biochemistry, Biophysics and Biotechnology, Jagiellonian University, Gronostajowa 7, 30-387 Krakow, Poland; (D.W.); (M.M.)
| | - Mariusz Kepczynski
- Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland;
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2
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Brebu M, Dumitriu RP, Pamfil D, Butnaru E, Stoleru E. Riboflavin mediated UV crosslinking of chitosan-gelatin cryogels for loading of hydrophobic bioactive compounds. Carbohydr Polym 2024; 324:121521. [PMID: 37985057 DOI: 10.1016/j.carbpol.2023.121521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 10/18/2023] [Accepted: 10/20/2023] [Indexed: 11/22/2023]
Abstract
Chitosan-gelatin cryogels with good loading capacity of hydrophobic compounds were successfully obtained by UV-induced crosslinking. Using riboflavin as photoinitiator was a suitable alternative to classical carbodiimide crosslinking in obtaining carrier matrices for bioactive hydrophobic compounds. Chitosan had a double role, acting both as a base polymer for the hydrogel network and as co-initiator in riboflavin photo-crosslinking. This co-initiator role of chitosan is due to its electron donor capacity, being well known as a Lewis base type macromolecule. The rheological behaviour of the chitosan-gelatin hydrogel precursor solutions was greatly influenced by riboflavin addition as well as by UV irradiation. As a consequence, the temperature of the sol-gel transition during cooling decreased to 25.5 °C. Compared with classical carbodiimide crosslinking, UV irradiation lead to gels with increased network stability, enhanced elastic behaviour, higher structural strength and almost total stress recovery yield (99 %), the latter indicating self-healing capacity. The cryogels manifested pH responsive swelling, this being highest at close to neutral pH of 7.4. Although hydrophilic in nature, the chitosan-gelatin cryogels crosslinked under the combined effect of riboflavin and UV exposure possess the necessary chemical functionality and morphology that allowed successful embedding of hydrophobic clove essential oil. This was loaded by immersion or fumigation and imparted antioxidant activity to the polymeric matrix.
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Affiliation(s)
- Mihai Brebu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Raluca Petronela Dumitriu
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Daniela Pamfil
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Elena Butnaru
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania
| | - Elena Stoleru
- "Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley, 41 A, 700487, Iasi, Romania.
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3
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Chen X, Huang J, Chen L, Chen X, Su D, Jin B. High internal phase Pickering emulsions stabilised by ultrasound-induced soy protein-β-glucan-catechin complex nanoparticles to enhance the stability and bioaccessibility of curcumin. J Microencapsul 2023; 40:456-474. [PMID: 37249352 DOI: 10.1080/02652048.2023.2220387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Accepted: 05/26/2023] [Indexed: 05/31/2023]
Abstract
AIMS To evaluate the potential applications of soy protein-glucan-catechin (SGC) complexes prepared with different ultrasound times in stabilising high internal phase Pickering emulsion (HIPPE) and delivering curcumin. METHODS The SGC complexes were characterised by particle size, morphology, zeta potential, Fourier transform infra-red, and fluorescence spectroscopy. Formation and stability of curcumin emulsions were monitored by droplet size, microstructure, rheological property, lipid oxidation, and in vitro digestion. RESULTS Short-time ultrasound-induced complexes (SGC-U15) exhibited a small size and wettability of ∼82.5°. The chemical stability and bioaccessibility of curcumin was greatly improved by SGC-U15-stabilised HIPPEs, even after 70 days of storage, heating at 100 °C for 30 min, ultraviolet irradiation for 120 min, and in vitro digestion, owing to the formation of elastic gel-like structure at the oil/water interfaces. CONCLUSION Our findings may contribute to the design of emulsion-based delivery systems using ultrasound-induced protein-polysaccharide-polyphenol complexes.
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Affiliation(s)
- Xutao Chen
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Junrong Huang
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Linlin Chen
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Xiaona Chen
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Danxia Su
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
| | - Bei Jin
- School of Food & Science Engineering, Lingnan Normal University, Zhanjiang, China
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4
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Xu W, Sun H, Jia Y, Jia Y, Ning Y, Wang Y, Jiang L, Luo D, Shah BR. Pickering emulsions synergistic stabilized with konjac glucomannan and xanthan gum/lysozyme nanoparticles: Structure, protection and gastrointestinal digestion. Carbohydr Polym 2023; 305:120507. [PMID: 36737181 DOI: 10.1016/j.carbpol.2022.120507] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 12/10/2022] [Accepted: 12/23/2022] [Indexed: 12/29/2022]
Abstract
The effect of konjac glucomannan (KGM) on the stability and digestion characteristics of xanthan gum/lysozyme nanoparticles (XG/Ly NPs) stabilized Pickering emulsions was investigated. Results indicated that the high viscosity of KGM prompted the particles to be adsorbed toward the interface, which decreased the particle size and increased the stability of emulsions. As the concentration of KGM increased, the G' and G″ of emulsions became larger and approached a "solid-like" state. When the KGM concentration was ≥0.2 %, the large amplitude sweeps of the emulsion exhibited a "weak strain overshoot". The network structure formed by KGM molecular chain and particles was intertwined around the droplets to form a polysaccharide layer and fibrous network structure. Emulsions containing KGM showed a "spider web" epidermal network pattern. It was found by illumination for 4 h that samples with 0.2 % KGM concentration increased the retention of β-carotene by 18.74 %. KGM decreased the release rate of fatty acids and bioaccessibility by hindering bile salt and lipase adsorption.
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Affiliation(s)
- Wei Xu
- College of Life Science, Xinyang Normal University, Xinyang 464000, China.
| | - Haomin Sun
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Yongxian Jia
- College of Life Science, Xinyang Normal University, Xinyang 464000, China
| | - Yin Jia
- College of Life Science, Xinyang Normal University, Xinyang 464000, China
| | - Yuli Ning
- College of Life Science, Xinyang Normal University, Xinyang 464000, China
| | - Ying Wang
- College of Life Science, Xinyang Normal University, Xinyang 464000, China
| | - Lanxi Jiang
- College of Life Science, Xinyang Normal University, Xinyang 464000, China
| | - Denglin Luo
- College of Food and Bioengineering, Henan University of Science and Technology, Luoyang 471023, China
| | - Bakht Ramin Shah
- University of South Bohemia in České Budějovice, Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, Na Sádkách, 1780, 37005 České Budějovice, Czech Republic
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5
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Cheng H, Chen W, Jiang J, Khan MA, Wusigale, Liang L. A comprehensive review of protein-based carriers with simple structures for the co-encapsulation of bioactive agents. Compr Rev Food Sci Food Saf 2023; 22:2017-2042. [PMID: 36938993 DOI: 10.1111/1541-4337.13139] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2022] [Revised: 01/28/2023] [Accepted: 02/21/2023] [Indexed: 03/21/2023]
Abstract
The rational design and fabrication of edible codelivery carriers are important to develop functional foods fortified with a plurality of bioactive agents, which may produce synergistic effects in increasing bioactivity and functionality to target specific health benefits. Food proteins possess considerable functional attributes that make them suitable for the delivery of a single bioactive agent in a wide range of platforms. Among the different types of protein-based carriers, protein-ligand nanocomplexes, micro/nanoparticles, and oil-in-water (O/W) emulsions have increasingly attracted attention in the codelivery of multiple bioactive agents, due to the simple and convenient preparation procedure, high stability, matrix compatibility, and dosage flexibility. However, the successful codelivery of bioactive agents with diverse physicochemical properties by using these simple-structure carriers is a daunting task. In this review, some effective strategies such as combined functional properties of proteins, self-assembly, composite, layer-by-layer, and interfacial engineering are introduced to redesign the carrier structure and explore the encapsulation of multiple bioactive agents. It then highlights success stories and challenges in the co-encapsulation of multiple bioactive agents within protein-based carriers with a simple structure. The partition, protection, and release of bioactive agents in these protein-based codelivery carriers are considered and discussed. Finally, safety and application as well as challenges of co-encapsulated bioactive agents in the food industry are also discussed. This work provides a state-of-the-art overview of protein-based particles and O/W emulsions in co-encapsulating bioactive agents, which is essential for the design and development of novel functional foods containing multiple bioactive agents.
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Affiliation(s)
- Hao Cheng
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Wanwen Chen
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Jiang Jiang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | | | - Wusigale
- Key Laboratory of Dairy Biotechnology and Engineering, Ministry of Education, Inner Mongolia Agricultural University, Hohhot, China
| | - Li Liang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
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6
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Tan Y, Zhou H, McClements DJ. Application of static in vitro digestion models for assessing the bioaccessibility of hydrophobic bioactives: A review. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.02.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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7
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Yuan Y, Ma M, Wang D, Xu Y. A review of factors affecting the stability of zein-based nanoparticles loaded with bioactive compounds: from construction to application. Crit Rev Food Sci Nutr 2022; 63:7529-7545. [PMID: 35253532 DOI: 10.1080/10408398.2022.2047881] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Zein-based nanoparticles loaded with bioactive compounds have positive prospects in the food industry, but an important limiting factor for development is colloidal instability. Currently, extensive researches are focused on solving the instability of zein nanoparticles, but since the beginning of the studies, there has not been a summary of the factors affecting the stability of zein-based nanoparticles. In the present work, the factors were reviewed comprehensively from the perspective of carrier construction and application evaluation. The former mainly includes type, quantity, and characteristics of biopolymer, the mass ratio of biopolymer/bioactive compound to zein, blending sequence of biopolymer, and location of encapsulated bioactive compounds. The latter mainly includes pH, heating, ionic strength, storage, freeze-drying, and gastrointestinal digestion. The former is the prerequisite for the success of the latter. The challenge is that stability research is limited to the laboratory level, and it is difficult to ensure that the stability results are suitable for commercial food matrices due to their complexity. At the laboratory level, the future trends are the influence of external energy and the cross-complexity and uniformity of stability research. The review is expected to provide systematic understanding and guidance for the development of zein-based nanoparticles stability.
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Affiliation(s)
- Yongkai Yuan
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Mengjie Ma
- School of Medicine and Pharmacy, Ocean University of China, Qingdao, People's Republic of China
| | - Dongfeng Wang
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
| | - Ying Xu
- College of Food Science and Engineering, Ocean University of China, Qingdao, People's Republic of China
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8
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Visentini FF, Perez AA, Santiago LG. Bioactive compounds: Application of albumin nanocarriers as delivery systems. Crit Rev Food Sci Nutr 2022; 63:7238-7268. [PMID: 35238254 DOI: 10.1080/10408398.2022.2045471] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Enriched products with bioactive compounds (BCs) show the capacity to produce a wide range of possible health effects. Most BCs are essentially hydrophobic and sensitive to environmental factors; so, encapsulation becomes a strategy to solve these problems. Many globular proteins have the intrinsic ability to bind, protect, encapsulate, and introduce BCs into nutraceutical or pharmaceutical matrices. Among them, albumins as human serum albumin (HSA), bovine serum albumin (BSA), ovalbumin (OVA) and α-lactalbumin (ALA) are widely abundant, available, and applied in many industrial sectors, becoming promissory materials to encapsulate BCs. Therefore, this review focuses on researches about the main groups of natural origin BCs (namely phenolic compounds, lipids, vitamins, and carotenoids), the different types of nanostructures based on albumins to encapsulate them and the main fields of application for BCs-loaded albumin systems. In this context, phenolic compounds (catechins, quercetin, and chrysin) are the most extensively BCs studied and encapsulated in albumin-based nanocarriers. Other extensively studied subgroups are stilbenes and curcuminoids. Regarding lipids and vitamins; terpenes, carotenoids (β-carotene), and xanthophylls (astaxanthin) are the most considered. The main application areas of BCs are related to their antitumor, anti-inflammatory, and antioxidant properties. Finally, BSA is the most used albumin to produced BCs-loaded nanocarriers.
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Affiliation(s)
- Flavia F Visentini
- Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina, CONICET
- Área de Biocoloides y Nanotecnología, Instituto de Tecnología de Alimentos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Adrián A Perez
- Consejo Nacional de Investigaciones Científicas y Técnicas de la República Argentina, CONICET
- Área de Biocoloides y Nanotecnología, Instituto de Tecnología de Alimentos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, Argentina
| | - Liliana G Santiago
- Área de Biocoloides y Nanotecnología, Instituto de Tecnología de Alimentos, Facultad de Ingeniería Química, Universidad Nacional del Litoral, Santa Fe, Argentina
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9
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Wei Y, Wang C, Liu X, Mackie A, Zhang M, Dai L, Liu J, Mao L, Yuan F, Gao Y. Co-encapsulation of curcumin and β-carotene in Pickering emulsions stabilized by complex nanoparticles: Effects of microfluidization and thermal treatment. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107064] [Citation(s) in RCA: 23] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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10
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Saffarionpour S, Diosady LL. Curcumin, a potent therapeutic nutraceutical and its enhanced delivery and bioaccessibility by pickering emulsions. Drug Deliv Transl Res 2022; 12:124-157. [PMID: 33677795 DOI: 10.1007/s13346-021-00936-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/01/2021] [Indexed: 01/10/2023]
Abstract
Curcumin is a biomolecule with functional moieties, which contribute to its anti-inflammatory, anticancer, and antioxidant properties. It has shown several therapeutic effects on treating inflammatory and neurodegenerative diseases and contributes to the reduction of oxidative stress and damage to body tissues. However, its low solubility and fast metabolism limit its absorption in the gastrointestinal (GI) tract and lead to its low bioavailability. Preparation of Pickering emulsions stabilized with mineral or biopolymer-based nanoparticles can be an effective strategy for enhancing the stability of curcumin against degradation, increasing its bioaccessibility in the GI tract, and achieving its controlled release at various locations based on changes in environmental conditions. Various nanoparticles prepared from minerals, proteins, and polysaccharides show potential for stabilizing the curcumin-loaded emulsions, and their wettability can be altered through complexation and formation of hybrid nanoparticles. Stabilization of Pickering emulsions with polysaccharide-based nanoparticles and their complexes can enhance the stability of the curcumin against degradation. Moreover, various protein-based nanoparticles and their conjugated forms with other proteins or polysaccharides can enable the preparation of high internal phase Pickering emulsions (HIPEs) with concomitant higher loading and bioaccessibility of the curcumin molecule. In light of the several therapeutic properties of curcumin, this review article aims to highlight recent studies and the strategies used for the preparation of curcumin Pickering emulsions stabilized by various nanoparticles for enhancing its bioaccessibility during metabolism. These may be useful in pharmaceutical and food industries for drug development and delivery and fortification of food products with this nutraceutical component.
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Affiliation(s)
- Shima Saffarionpour
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada.
| | - Levente L Diosady
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
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11
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Liu J, Tian B, Liu Y, Wan JB. Cyclodextrin-Containing Hydrogels: A Review of Preparation Method, Drug Delivery, and Degradation Behavior. Int J Mol Sci 2021; 22:13516. [PMID: 34948312 PMCID: PMC8703588 DOI: 10.3390/ijms222413516] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Revised: 12/06/2021] [Accepted: 12/14/2021] [Indexed: 02/01/2023] Open
Abstract
Hydrogels possess porous structures, which are widely applied in the field of materials and biomedicine. As a natural oligosaccharide, cyclodextrin (CD) has shown remarkable application prospects in the synthesis and utilization of hydrogels. CD can be incorporated into hydrogels to form chemically or physically cross-linked networks. Furthermore, the unique cavity structure of CD makes it an ideal vehicle for the delivery of active ingredients into target tissues. This review describes useful methods to prepare CD-containing hydrogels. In addition, the potential biomedical applications of CD-containing hydrogels are reviewed. The release and degradation process of CD-containing hydrogels under different conditions are discussed. Finally, the current challenges and future research directions on CD-containing hydrogels are presented.
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Affiliation(s)
- Jiayue Liu
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China;
| | - Bingren Tian
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China;
| | - Yumei Liu
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China;
| | - Jian-Bo Wan
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao 999078, China;
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12
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Vellido-Perez JA, Ochando-Pulido JM, Brito-de la Fuente E, Martinez-Ferez A. Effect of operating parameters on the physical and chemical stability of an oil gelled-in-water emulsified curcumin delivery system. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:6395-6406. [PMID: 33969886 DOI: 10.1002/jsfa.11310] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 04/15/2021] [Accepted: 05/10/2021] [Indexed: 06/12/2023]
Abstract
BACKGROUND Curcumin is a natural antioxidant with important beneficial properties for health, although its low bioavailability and sensitivity to many environmental agents limits its use in the food industry. Furthermore, some studies mention a potential synergistic effect with omega-3 polyunsaturated fatty acids, comprising other bioactive compounds extremely unstable and susceptible to oxidation. A relatively novel strategy to avoid oxidation processes is to transform liquid oils into three-dimensional structures by adding a gelling agent and forming a self-assembled network that can later be vectorized by incorporating it into other systems. The present study aimed to design and optimize an oil gelled-in-water curcumin-loaded emulsion to maximize curcumin stability and minimize lipid oxidation in terms of some critical operating parameters, such as dispersed phase, emulsifier and stabilizer concentrations, and homogenization rate. RESULTS The operating conditions that had a significant effect on the formulation were the dispersed phase weight fraction affecting droplet size and total lipid oxidation, homogenization conditions affecting droplet size and primary lipid oxidation, and emulsifier concentration affecting droplet size (significance level = 95%). The optimal formulation for maximizing curcumin load and minimizing lipid oxidation in the oleogelified matrix was 140.4 g kg-1 dispersed phase, 50.0 g kg-1 emulsifier, 4.9 g kg-1 stabilizer and homogenization speed 1016 × g. CONCLUSION The results obtained in the present study provide a valuable tool for the rational design and development of oil gelled-in-water emulsions that stabilize and transport bioactive compounds such as curcumin. © 2021 The Authors. Journal of The Science of Food and Agriculture published by John Wiley & Sons Ltd on behalf of Society of Chemical Industry.
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Affiliation(s)
| | | | - Edmundo Brito-de la Fuente
- Innovation & Development Centers China & Germany Business Unit Parenteral Nutrition, Ketoanalogues & IV Fluids Pharmaceuticals & Devices Division, Fresenius Kabi Deutschland GmbH, Bad Homburg, Germany
| | - Antonio Martinez-Ferez
- Department of Chemical Engineering, Faculty of Sciences, University of Granada, Granada, Spain
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13
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Wei Y, Zhang L, Liao W, Mao L, Zhang M, Guo X, Huang C, Han H, Mackie A, Gao Y. Enhanced stability and controlled gastrointestinal digestion of β-carotene loaded Pickering emulsions with particle-particle complex interfaces. Food Funct 2021; 12:10842-10861. [PMID: 34617943 DOI: 10.1039/d1fo01714d] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
In this study, we used large, rigid, and hydrophilic zein-propylene glycol alginate composite particles (ZPCPs) and small, soft, and hydrophobic whey protein microgel (WPM) particles to synergistically stabilize a Pickering emulsion for delivery of β-carotene. The photothermal stability and storage stability of β-carotene were improved with the combined use of different particles. Microstructural observations showed that ZPCPs were effectively adsorbed at the oil/water interface despite the substantial interparticle gaps. WPM particles could swell and stretch on the interface due to their deformable structure, thereby forming an interfacial layer of flattened particles to cover a large surface area. The interfacial structure and macroscopic properties of Pickering emulsions were modulated by adjusting the mass ratio and addition sequence of different particles. The combination of ZPCPs and WPM delayed the lipolysis during gastrointestinal digestion. Through controlling the composition of the complex interface, the free fatty acid (FFA) release rate of Pickering emulsions in the small intestinal phase was reduced from 15.64% to 9.03%. When ZPCPs were used as the inner layer and WPM as the outer layer and the mass ratio of ZPCPs to WPM was 4 : 1, the Pickering emulsion showed the best stability and β-carotene bioaccessibility. The Pickering emulsion with particle-particle complex interfaces could be applied in foods and pharmaceuticals for the purpose of enhanced stability, delayed lipolysis or sustained nutrient release.
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Affiliation(s)
- Yang Wei
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China. .,School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Liang Zhang
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China.
| | - Wenyan Liao
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China.
| | - Like Mao
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China.
| | - Mengke Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Xiaodong Guo
- School of Agriculture and Biology, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai, 200240, PR China
| | - Cancan Huang
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
| | - Haizhen Han
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
| | - Alan Mackie
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, UK
| | - Yanxiang Gao
- College of Food Science & Nutritional Engineering, China Agricultural University, Beijing, 100083, P. R. China.
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Murray BS, Ettelaie R, Sarkar A, Mackie AR, Dickinson E. The perfect hydrocolloid stabilizer: Imagination versus reality. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106696] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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15
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Pickering emulsions as a platform for structures design: cutting-edge strategies to engineer digestibility. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106645] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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16
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Niro CM, Medeiros JA, Freitas JA, Azeredo HM. Advantages and challenges of Pickering emulsions applied to bio-based films: a mini-review. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:3535-3540. [PMID: 33345306 DOI: 10.1002/jsfa.11029] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 12/04/2020] [Accepted: 12/20/2020] [Indexed: 06/12/2023]
Abstract
The strategy of adding hydrophobic compounds to bio-based films (usually based on hydrophilic matrices), forming films containing emulsions, is a technique that has been used to improve some physical properties (such as reducing water solubility and water vapor permeability) and / or to impart properties, such as antioxidant and antimicrobial effects by carrying hydrophobic active components that would otherwise be insoluble in hydrophilic matrices. Although Pickering emulsions have been reported as presenting greater stability when compared with surfactant-stabilized emulsions, little is known about the drying stability of Pickering emulsions (which is important for film applications). Anyway, several studies have indicated that Pickering emulsions are interesting systems to improve the water vapor barrier properties of bio-based films and coatings, and to act as carriers of active hydrophobic components. On the other hand, the tensile properties of those films are usually impaired by the presence of Pickering emulsions. The objective of this review is to present recent developments and future perspectives in bio-based films loaded with Pickering emulsions. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Carolina M Niro
- Postgraduate Program in Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - Jackson A Medeiros
- Postgraduate Program in Food and Nutrition, School of Pharmaceutical Sciences, São Paulo State University (Unesp), Araraquara, Brazil
| | - John Am Freitas
- Postgraduate Program in Biotechnology, Federal University of São Carlos (UFSCar), São Carlos, Brazil
| | - Henriette Mc Azeredo
- Embrapa Agroindústria Tropical, Empresa Brasileira de Pesquisa Agropecuária, R Dra Sara Mesquita, 2270, Fortaleza, Brasil, 60511110, Brazil
- Nanotechnology National Laboratory for Agriculture (LNNA), Embrapa Instrumentação, R XV de Novembro, 1452, São Carlos, SP, 13560-970, Brazil
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17
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18
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Jash A, Ubeyitogullari A, Rizvi SSH. Liposomes for oral delivery of protein and peptide-based therapeutics: challenges, formulation strategies, and advances. J Mater Chem B 2021; 9:4773-4792. [PMID: 34027542 DOI: 10.1039/d1tb00126d] [Citation(s) in RCA: 30] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Throughout the past decade, there has been a rapid growth in the development of protein/peptide-based therapeutics. These therapeutics have found widespread applications in the treatment of cancer, infectious diseases, and other metabolic disorders owing to their several desirable attributes, such as reduced toxicity, diverse biological activities, high specificity, and potency. Most protein/peptide-based drugs are still administered parenterally, and there is an unprecedented demand in the pharmaceutical industry to develop oral delivery routes to increase patient acceptability and convenience. Recent advancements in nanomedicine discoveries have led to the development of several nano and micro-particle-based oral delivery platforms for protein/peptide-based therapeutics and among these, liposomes have emerged as a prominent candidate. Liposomes are spherical vesicles composed of one or more phospholipid bilayers enclosing a core aqueous phase. Their unique amphiphilic nature enables encapsulation of a diverse range of bioactives/drugs including both hydrophobic and hydrophilic compounds for delivery. Against this backdrop, this review provides an overview of the current approaches and challenges associated with the routes and methods of oral administration of protein/peptide-based therapeutics by using liposomes as a potential vehicle. First, the conventional and innovative liposome formation approaches have been discussed along with their applications. Next, the challenges associated with current approaches for oral delivery of protein and peptide-derived therapeutics have been thoroughly addressed. Lastly, we have critically reviewed the potential of liposomes utilization as vehicles for oral delivery of proteins emphasizing the current status and future directions in this area.
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Affiliation(s)
- Apratim Jash
- Department of Food Science, Cornell University, Ithaca, NY 14850, USA
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19
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Ye A. Gastric colloidal behaviour of milk protein as a tool for manipulating nutrient digestion in dairy products and protein emulsions. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106599] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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20
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Mackie A, Dupont D, Ferranti P, Clemente A. 6th International Conference on Food Digestion. Food Res Int 2021; 144:110354. [PMID: 34053547 DOI: 10.1016/j.foodres.2021.110354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alan Mackie
- School of Food Science and Nutrition, University of Leeds, LS2 9JT, UK.
| | | | - Pasquale Ferranti
- Department of Agricultural Science, University of Naples Federico II, Parco Gussone, Portici I-80055, Italy
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21
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Maurya VK, Shakya A, Aggarwal M, Gothandam KM, Bohn T, Pareek S. Fate of β-Carotene within Loaded Delivery Systems in Food: State of Knowledge. Antioxidants (Basel) 2021; 10:426. [PMID: 33802152 PMCID: PMC8001630 DOI: 10.3390/antiox10030426] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Revised: 02/27/2021] [Accepted: 03/01/2021] [Indexed: 01/14/2023] Open
Abstract
Nanotechnology has opened new opportunities for delivering bioactive agents. Their physiochemical characteristics, i.e., small size, high surface area, unique composition, biocompatibility and biodegradability, make these nanomaterials an attractive tool for β-carotene delivery. Delivering β-carotene through nanoparticles does not only improve its bioavailability/bioaccumulation in target tissues, but also lessens its sensitivity against environmental factors during processing. Regardless of these benefits, nanocarriers have some limitations, such as variations in sensory quality, modification of the food matrix, increasing costs, as well as limited consumer acceptance and regulatory challenges. This research area has rapidly evolved, with a plethora of innovative nanoengineered materials now being in use, including micelles, nano/microemulsions, liposomes, niosomes, solidlipid nanoparticles, nanostructured lipids and nanostructured carriers. These nanodelivery systems make conventional delivery systems appear archaic and promise better solubilization, protection during processing, improved shelf-life, higher bioavailability as well as controlled and targeted release. This review provides information on the state of knowledge on β-carotene nanodelivery systems adopted for developing functional foods, depicting their classifications, compositions, preparation methods, challenges, release and absorption of β-carotene in the gastrointestinal tract (GIT) and possible risks and future prospects.
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Affiliation(s)
- Vaibhav Kumar Maurya
- Department of Basic and Applied Science, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat 131 028, Haryana, India; (V.K.M.); (M.A.)
| | - Amita Shakya
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat 131 028, Haryana, India;
| | - Manjeet Aggarwal
- Department of Basic and Applied Science, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat 131 028, Haryana, India; (V.K.M.); (M.A.)
| | | | - Torsten Bohn
- Nutrition and Health Research Group, Department of Population Health, Luxembourg Institute of Health, L-1445 Strassen, Luxembourg;
| | - Sunil Pareek
- Department of Agriculture and Environmental Sciences, National Institute of Food Technology Entrepreneurship and Management, Kundli, Sonepat 131 028, Haryana, India;
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22
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Wei Y, Zhou D, Mackie A, Yang S, Dai L, Zhang L, Mao L, Gao Y. Stability, Interfacial Structure, and Gastrointestinal Digestion of β-Carotene-Loaded Pickering Emulsions Co-stabilized by Particles, a Biopolymer, and a Surfactant. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:1619-1636. [PMID: 33512160 DOI: 10.1021/acs.jafc.0c06409] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Novel Pickering emulsions were stabilized by complex interfaces in the presence of zein colloidal particles (ZCPs), propylene glycol alginate (PGA), and rhamnolipid (Rha) for delivery of β-carotene. The influence of the particle-surfactant, particle-biopolymer, and particle-biopolymer-surfactant mixed interfaces on the physiochemical properties and digestion fate of Pickering emulsions was investigated. It is the first time that three different types of emulsifiers have been used to synergistically stabilize food Pickering emulsions for delivery of lipophilic nutraceuticals. The physicochemical stability, microstructure, rheological properties, and in vitro gastrointestinal digestion of Pickering emulsions were controlled by the addition sequence and mass ratio of multiple stabilizers, which showed the enhanced stability and delayed lipid digestion of the particle-biopolymer-surfactant-stabilized Pickering emulsions. After encapsulation into Pickering emulsions, the retention rate of β-carotene increased 2-fold under UV radiation for 8 h. The coexistence of ZCPs, PGA, and Rha could induce the competitive displacement, multilayer deposition, and interparticle network at the interface. The combination of particles, a biopolymer, and a surfactant delayed the lipolysis during in vitro gastrointestinal tract. By modulating the interfacial composition, the release rate of free fatty acids from Pickering emulsions was reduced from 19.46% to 2.83% through different mechanisms. The novel Pickering emulsion could be incorporated in foods as well as pharmaceuticals for controlled lipid digestion or targeted nutrient delivery purposes.
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Affiliation(s)
- Yang Wei
- Key Laboratory of Healthy Beverages, China National light Industry Council, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, U.K
| | - Dan Zhou
- Key Laboratory of Healthy Beverages, China National light Industry Council, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Alan Mackie
- Food Colloids and Processing Group, School of Food Science and Nutrition, University of Leeds, Leeds LS2 9JT, U.K
| | - Shufang Yang
- Key Laboratory of Healthy Beverages, China National light Industry Council, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Lei Dai
- Key Laboratory of Healthy Beverages, China National light Industry Council, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Liang Zhang
- Key Laboratory of Healthy Beverages, China National light Industry Council, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Like Mao
- Key Laboratory of Healthy Beverages, China National light Industry Council, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
| | - Yanxiang Gao
- Key Laboratory of Healthy Beverages, China National light Industry Council, College of Food Science & Nutritional Engineering, China Agricultural University, Beijing 100083, P. R. China
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23
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McClements DJ. Food hydrocolloids: Application as functional ingredients to control lipid digestion and bioavailability. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106404] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Wei Y, Wang C, Liu X, Liao W, Zhang L, Chen S, Liu J, Mao L, Yuan F, Gao Y. Effects of microfluidization and thermal treatment on the characterization and digestion of curcumin loaded protein–polysaccharide–tea saponin complex nanoparticles. Food Funct 2021; 12:1192-1206. [DOI: 10.1039/d0fo02283g] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Microfluidization (50–150 MPa) and thermal treatment (45–85 °C) were applied to modulate the stability, molecular interaction and microstructure of zein–proplyene glycol alginate (PGA)–tea saponin (TS) complex nanoparticles for delivery of curcumin.
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Affiliation(s)
- Yang Wei
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
- Food Colloids and Processing Group
| | - Chao Wang
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Xin Liu
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Wenyan Liao
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Liang Zhang
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Shuai Chen
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Jinfang Liu
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Like Mao
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Fang Yuan
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
| | - Yanxiang Gao
- College of Food Science & Nutritional Engineering
- China Agricultural University
- Beijing
- P. R. China
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25
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Characteristics of starch-based Pickering emulsions from the interface perspective. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.09.026] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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McClements DJ. Nano-enabled personalized nutrition: Developing multicomponent-bioactive colloidal delivery systems. Adv Colloid Interface Sci 2020; 282:102211. [PMID: 32721626 DOI: 10.1016/j.cis.2020.102211] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2020] [Revised: 05/21/2020] [Accepted: 07/06/2020] [Indexed: 12/13/2022]
Abstract
There is growing interest in the production of foods and beverages with nutrient and nutraceutical profiles tailored to an individual's specific nutritional requirements. In principle, these personalized nutrition products are formulated based on the genetics, epigenetics, metabolism, microbiome, phenotype, lifestyle, age, gender, and health status of a person. A challenge in this area is to create customized functional food and beverage products that contain the required combination of bioactive agents, such as lipids, proteins, carbohydrates, vitamins, minerals, nutraceuticals, prebiotics and probiotics. Nanotechnology may facilitate the development of these kind of products since it can be used to encapsulate one or more bioactive agent in a single colloidal delivery system. This delivery system may contain one or more different kinds of colloidal particle, specifically designed to protect each nutrient in the food, but then deliver it in a bioavailable form after ingestion. This review article provides an overview of the different kinds of bioactives that need to be delivered, as well as some of the challenges associated with incorporating them into functional foods and beverages. It then highlights how nanotech-enabled colloidal delivery systems can be developed to encapsulate multiple bioactive agents in a form suitable for functional food applications, particularly in the personalized nutrition field.
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Affiliation(s)
- David Julian McClements
- Department of Food Science, University of Massachusetts, Amherst, MA 01003, USA; Department of Food Science & Bioengineering, Zhejiang Gongshang University, 18 Xuezheng Street, Zhejiang, Hangzhou 310018, China.
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27
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Araiza-Calahorra A, Wang Y, Boesch C, Zhao Y, Sarkar A. Pickering emulsions stabilized by colloidal gel particles complexed or conjugated with biopolymers to enhance bioaccessibility and cellular uptake of curcumin. Curr Res Food Sci 2020; 3:178-188. [PMID: 32914133 PMCID: PMC7473359 DOI: 10.1016/j.crfs.2020.05.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
The aim of this study was to investigate the fate of curcumin (CUR)-loaded Pickering emulsions with complex interfaces during in vitro gastrointestinal transit and test the efficacy of such emulsions on improving the bioaccessibility and cellular uptake of CUR. CUR-loaded Pickering emulsions tested were whey protein nanogel particle-stabilized Pickering emulsions (CUR-EWPN) and emulsions displaying complex interfaces included 1) layer-by-layer dextran sulphate-coated nanogel-stabilized Pickering emulsions (CUR-DxS+EWPN) and 2) protein+dextran-conjugated microgel-stabilized Pickering emulsions (CUR-EWPDxM). The hypothesis was that the presence of complex interfacial material at the droplet surface would provide better protection to the droplets against physiological degradation, particularly under gastric conditions and thus, improve the delivery of CUR to Caco-2 intestinal cells. The emulsions were characterized using droplet sizing, apparent viscosity, confocal and cryo-scanning electron microscopy, zeta-potential, lipid digestion kinetics, bioaccessibility of CUR as well as cell viability and uptake by Caco-2 cells. Emulsion droplets with modified to complex interfacial composition (i.e. CUR-DxS+EWPN and CUR-EWPDxM) provided enhanced kinetic stability to the Pickering emulsion droplets against coalescence in the gastric regime as compared to droplets having unmodified interface (i.e. CUR-EWPN), whereas droplet coalescence occurred in intestinal conditions irrespective of the initial interfacial materials. A similar rate and extent of free fatty acid release occurred in all the emulsions during intestinal digestion (p > 0.05), which correlated with the bioaccessibility of CUR. Striking, CUR-DxS+EWPN and CUR-EWPDxM significantly improved cellular CUR uptake as compared to CUR-EWPN (p < 0.05). These results highlight a promising new strategy of designing gastric-stable Pickering emulsions with complex interfaces to improve the delivery of lipophilic bioactive compounds to the cells for the future design of functional foods.
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Affiliation(s)
- Andrea Araiza-Calahorra
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Yunqing Wang
- Nutritional Sciences and Epidemiology Group, School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Christine Boesch
- Nutritional Sciences and Epidemiology Group, School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
| | - Yansheng Zhao
- School of Food and Biological Engineering, Jiangsu University, Zhenjiang, 212013, China
| | - Anwesha Sarkar
- Food Colloids and Bioprocessing Group, School of Food Science and Nutrition, University of Leeds, Leeds, LS2 9JT, UK
- Corresponding author.
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