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Yan X, Peng X, McClements DJ, Ma C, Liu X, Liu F. Interfacial engineering of Pickering emulsions stabilized by pea protein-alginate microgels for encapsulation of hydrophobic bioactives. Food Chem 2024; 460:140761. [PMID: 39137575 DOI: 10.1016/j.foodchem.2024.140761] [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: 05/30/2024] [Revised: 07/28/2024] [Accepted: 08/02/2024] [Indexed: 08/15/2024]
Abstract
This study aims to investigate the effects of interfacial layer composition and structure on the formation, physicochemical properties and stability of Pickering emulsions. Interfacial layers were formed using pea protein isolate (PPI), PPI microgel particles (PPIMP), a mixture of PPIMP and sodium alginate (PPIMP-SA), or PPIMP-SA conjugate. The encapsulation and protective effects on different hydrophobic bioactives were then evaluated within these Pickering emulsions. The results demonstrated that the PPIMP-SA conjugate formed thick and robust interfacial layers around the oil droplet surfaces, which increased the resistance of the emulsion to coalescence, creaming, and environmental stresses, including heating, light exposure, and freezing-thawing cycle. Additionally, the emulsion stabilized by the PPIMP-SA conjugate significantly improved the photothermal stability of hydrophobic bioactives, retaining a higher percentage of their original content compared to those in non-encapsulated forms. Overall, the novel protein microgels and the conjugate developed in this study have great potential for improving the physicochemical stability of emulsified foods.
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Affiliation(s)
- Xiaojia Yan
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Xiaoke Peng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | | | - Cuicui Ma
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Xuebo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Fuguo Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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2
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Diao X, Ke W, Li S, Mao X, Shan K, Zhang M, Zhao D, Li C. Effect of wheat aleurone on lard emulsions during in vitro digestion. Food Chem 2024; 435:137530. [PMID: 37757681 DOI: 10.1016/j.foodchem.2023.137530] [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: 05/19/2023] [Revised: 09/06/2023] [Accepted: 09/17/2023] [Indexed: 09/29/2023]
Abstract
Dietary wheat aleurone has been shown to affect lipid metabolism and reduce the incidence of obesity. However, the underlying mechanisms are not fully understood. This work aimed to investigate how whole wheat aleurone affects lipolysis during the whole digestion process in vitro. The physicochemical and microstructural changes and the lipolysis kinetics of different lard emulsion mixtures were determined. The results showed that the lipolysis rate and degree are inversely proportional to the amount of wheat aleurone. Wheat aleurone and flour promoted the aggregation and flocculation of lipid droplets by increasing the viscosity. More importantly, the dietary fibers released from aleurone digestion can reduced the binding of lipase to lipid droplets by adsorbing lipid droplets to increase the steric hindrance effect. These results provide a better understanding of how whole grains affect lipid digestibility and will further contribute to the development of functional foods and the improvement of individual health.
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Affiliation(s)
- Xinyue Diao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Weixin Ke
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Shanshan Li
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Xinrui Mao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Kai Shan
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Miao Zhang
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Di Zhao
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China
| | - Chunbao Li
- State Key Laboratory of Meat Quality Control and Cultured Meat Development, Nanjing 210095, China; Key Laboratory of Meat Processing, MARA, Nanjing 210095, China; Jiangsu Innovative Center of Meat Production, Processing and Quality Control, Nanjing 210095, China; College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, China.
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3
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Sriprablom J, Winuprasith T, Suphantharika M, Wongsagonsup R. Physical properties and in-vitro gastrointestinal digestion of oil-in-water emulsions stabilized by single- and dual-modified cassava starches with cross-linking and octenylsuccinylation. Int J Biol Macromol 2024; 262:129965. [PMID: 38325686 DOI: 10.1016/j.ijbiomac.2024.129965] [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: 10/04/2023] [Revised: 01/07/2024] [Accepted: 02/02/2024] [Indexed: 02/09/2024]
Abstract
The different modified cassava starches (MCS) obtained by either single or dual modifications with cross-linking (CL) and octenylsuccinylation (OS), including 2%CL, 3%OS, 2%CL-3%OS, and 3%OS-2%CL, were used to stabilize soybean oil-in-water emulsions (oil content 10% (w/w)) at a concentration of 4.5% (w/w) compared to native cassava starch (NCS) and their physical properties and in-vitro gastrointestinal digestion were investigated. The emulsions stabilized with NCS and 2%CL-MCS had larger oil droplet sizes, higher viscosity, and lower negative charge than the emulsions stabilized by single- or dual-MCS with 3%OS. All MCS-stabilized emulsions showed a higher emulsion stability against creaming than the NCS-stabilized emulsion. Under a simulated gastrointestinal tract, all 3%OS-MCS promoted droplet flocculation, while the less ionic NCS and the 2%CL-MCS showed a decrease in droplet size after passing through the mouth and stomach stages. The lipid digestion rate of emulsions stabilized with different MCS and NCS followed the following order: 3%OS >2%CL-3%OS > 3%OS-2%CL > 2%CL > NCS. The NCS- and 2%CL-stabilized emulsions had a lower lipid digestion rate, possibly due to the larger droplet sizes and higher viscosity of the initial emulsions, which delays access of lipase enzymes to lipid droplet surfaces, compared to all 3%OS-MCS-stabilized emulsions.
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Affiliation(s)
- Jiratthitikan Sriprablom
- Institute of Nutrition, Mahidol University, Nakhon Pathom 73170, Thailand; Division of Food Technology, Kanchanaburi Campus, Mahidol University, Kanchanaburi 71150, Thailand
| | | | - Manop Suphantharika
- Department of Biotechnology, Faculty of Science, Mahidol University, Rama 6 Road, Bangkok 10400, Thailand
| | - Rungtiwa Wongsagonsup
- Institute of Nutrition, Mahidol University, Nakhon Pathom 73170, Thailand; Division of Food Technology, Kanchanaburi Campus, Mahidol University, Kanchanaburi 71150, Thailand.
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4
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Guru PR, Kar RK, Nayak AK, Mohapatra S. A comprehensive review on pharmaceutical uses of plant-derived biopolysaccharides. Int J Biol Macromol 2023; 233:123454. [PMID: 36709807 DOI: 10.1016/j.ijbiomac.2023.123454] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 01/22/2023] [Accepted: 01/24/2023] [Indexed: 01/27/2023]
Abstract
Biopolysaccharides extracted from plants are mainly photosynthetic byproducts found in leaves, pods, stems, fruits, grains, seeds, corms, rhizomes, roots, bark exudates, and other plant parts. Recently, these plant-derived biopolysaccharides have received a great deal of attention as pharmaceutical excipients in a range of different dosage forms because of several key advantages, such as widespread accessibility from nature as plant-based sources are readily available, sustainable production, availability of easy and cost-effective extraction methodologies, aqueous solubility, swelling capability in the aqueous medium, non-toxicity, biodegradability, etc. The current review presents a comprehensive overview of the uses of plant-derived biopolysaccharides as effective pharmaceutical excipients in the formulations of different kinds of dosage forms, for example gels, pastes, films, emulsions, suspensions, capsules, tablets, nanoparticles, microparticles, beads, buccal formulations, transdermal formulations, ocular formulations, nasal formulations, etc.
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Affiliation(s)
- Pravat Ranjan Guru
- Department of Pharmaceutics, Dadhichi College of Pharmacy, Vidya Vihar, Sundargram, Cuttack 754002, Odisha, India
| | - Rajat Kumar Kar
- Department of Pharmaceutics, Dadhichi College of Pharmacy, Vidya Vihar, Sundargram, Cuttack 754002, Odisha, India
| | - Amit Kumar Nayak
- Department of Pharmaceutics, Seemanta Institute of Pharmaceutical Sciences, Jharpokharia, Mayurbhanj 757086, Odisha, India.
| | - Snehamayee Mohapatra
- Department of Pharmaceutics, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed to be University), Bhubaneswar 751003, Odisha, India.
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5
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Yan J, Yang Z, Qiao X, Kong Z, Dai L, Wu J, Xu X, McClements DJ. Interfacial characteristics and in vitro digestion of emulsion coated by single or mixed natural emulsifiers: lecithin and/or rice glutelin hydrolysates. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2022; 102:2990-2999. [PMID: 34773407 DOI: 10.1002/jsfa.11639] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/09/2021] [Revised: 10/12/2021] [Accepted: 11/13/2021] [Indexed: 06/13/2023]
Abstract
BACKGROUND The interfacial characteristics and in vitro digestion of emulsion were related to emulsifier type. The mean droplet diameter, ζ-potential, microstructure, interfacial tension, Quartz crystal microbalance with dissipation (QCM-D) and in vitro gastrointestinal fate of emulsions stabilized by soybean lecithin, hydrolyzed rice glutelin (HRG) and their mixture were researched. RESULTS The value of interfacial tension was much more dramatically declined for the sample containing 20 g kg-1 of HRG. For QCM-D, a rigid layer was formed for all the samples after rinsing. The layer thickness was 0.87 ± 0.20, 2.11 ± 0.31 and 2.63 ± 0.22 nm, and adsorbed mass was 87.17 ± 10.31, 210.56 ± 20.12 and 263.09 ± 23.23 ng cm-2 , for HRG, lecithin and HRG/lecithin, respectively, indicating both HRG and lecithin were adsorbed at the oil-water interface. Structural rearrangements at the interface occurred for HRG/lecithin. The kinetics and final amount of lipid digestion depended on emulsifier type: lecithin > HRG/lecithin > HRG. These differences in digestion rate were primarily due to differences in the aggregation state of the emulsifiers. CONCLUSION The incorporation of lecithin into HRG emulsions had better interfacial properties comparing with HRG emulsion and facilitated lipid digestibility. These results provide important information for the rational design of plant-based functional food. © 2021 Society of Chemical Industry.
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Affiliation(s)
- Jiakai Yan
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Zhenyu Yang
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Xin Qiao
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Zhihao Kong
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Lei Dai
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
| | - Jianyong Wu
- State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang, China
| | - Xingfeng Xu
- College of Food Science and Engineering, Qingdao Agricultural University, Qingdao, China
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6
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Halahlah A, Piironen V, Mikkonen KS, Ho TM. Polysaccharides as wall materials in spray-dried microencapsulation of bioactive compounds: Physicochemical properties and characterization. Crit Rev Food Sci Nutr 2022; 63:6983-7015. [PMID: 35213281 DOI: 10.1080/10408398.2022.2038080] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Natural bioactive compounds (BCs) are types of chemicals found in plants and certain foods that promote good health, however they are sensitive to processing and environmental conditions. Microencapsulation by spray drying is a widely used and cost-effective approach to create a coating layer to surround and protect BCs and control their release, enabling the production of high functional products/ingredients with extended shelf life. In this process, wall materials determine protection efficiency, and physical properties, bioavailability, and storage stability of microencapsulated products. Therefore, an understanding of physicochemical properties of wall materials is essential for the successful and effective spray-dried microencapsulation process. Typically, polysaccharide-based wall materials are generated from more sustainable sources and have a wider range of physicochemical properties and applications compared to their protein-based counterparts. In this review, we highlight the essential physicochemical properties of polysaccharide-based wall materials for spray-dried microencapsulation of BCs including solubility, thermal stability, and emulsifying properties, rheological and film forming properties. We provide further insight into possibilities for the chemical structure modification of native wall materials and their controlled release behaviors. Finally, we summarize the most recent studies involving polysaccharide biopolymers as wall materials and/or emulsifiers in spray-dried microencapsulation of BCs.
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Affiliation(s)
| | - Vieno Piironen
- Department of Food and Nutrition, University of Helsinki, Finland
| | - Kirsi S Mikkonen
- Department of Food and Nutrition, University of Helsinki, Finland
- Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Finland
| | - Thao M Ho
- Department of Food and Nutrition, University of Helsinki, Finland
- Helsinki Institute of Sustainability Science (HELSUS), University of Helsinki, Finland
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7
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Zhu Y, Peng Z, Wu J, Zhang Y. Stability of oil‐in‐water emulsions with eggplant flesh pulp (
Solanum melongena
L.) emulsifier: Effects of storage time, pH, ionic strength, and temperature. J Food Sci 2022; 87:1119-1133. [DOI: 10.1111/1750-3841.16046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 10/24/2021] [Accepted: 12/21/2021] [Indexed: 12/01/2022]
Affiliation(s)
- Yuxia Zhu
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, and Synergetic Innovation Center of Food Safety and Nutrition Nanjing University Nanjing 210095 China
- School of Biological Science and Food Engineering Chuzhou University Chuzhou 239004 China
| | - Zengqi Peng
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, and Synergetic Innovation Center of Food Safety and Nutrition Nanjing University Nanjing 210095 China
| | - Junjun Wu
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, and Synergetic Innovation Center of Food Safety and Nutrition Nanjing University Nanjing 210095 China
| | - Yawei Zhang
- College of Food Science and Technology, National Center of Meat Quality and Safety Control, and Synergetic Innovation Center of Food Safety and Nutrition Nanjing University Nanjing 210095 China
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8
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YIN M, CHEN M, MATSUOKA R, XI Y, WANG X. Effects of phospholipid type and concentration on the emulsion stability and in vitro digestion behaviors of fish oil-loaded emulsions. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.84622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
| | - Min CHEN
- Shanghai Ocean University, China
| | | | - Yinci XI
- Shanghai Ocean University, China
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9
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Cai Y, Huang L, Tao X, Su J, Chen B, Zhao M, Zhao Q, Van der Meeren P. Carboxymethyl cellulose/okara protein influencing microstructure, rheological properties and stability of O/W emulsions. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2021; 101:3685-3692. [PMID: 33301177 DOI: 10.1002/jsfa.10998] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2020] [Revised: 10/31/2020] [Accepted: 12/10/2020] [Indexed: 06/12/2023]
Abstract
BACKGROUND The role of protein-polysaccharide interactions and their mixtures has been a vital factor affecting the formation and stability of food emulsions. Okara protein (OP), which is extracted from the by-product of soybean processing, has received much attention because of its abundant sources and potential attributes with respect to food formulation. Carboxymethyl cellulose (CMC), a well-known food-grade polysaccharide additive, has been widely utilized in the protein-polysaccharide system, whereas, among the proteins, the role of OP has not yet been explored. RESULTS The present study first assessed the ζ-potential and hydrodynamic diameter of aqueous mixtures containing OP (1.0 wt%) and CMC (0-0.5 wt%), followed by the investigation of OP-CMC mixtures stabilized O/W emulsions. As CMC increased, oil droplet size, surface protein adsorption, apparent viscosity and storage modulus increased, whereas the loss tangent decreased. CONCLUSION CMC resulted in emulsion destabilization compared to emulsions without CMC, whereas a higher concentration of CMC promoted emulsion stability against creaming for emulsions in the presence of CMC. The results provide information with respect to OP and CMC being incorporated into food formulations and also strengthen our understanding of the related mechanism, in addition to facilitating the further utilization of OP. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Yongjian Cai
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
- Particle & Interfacial Technology Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Lihua Huang
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Xia Tao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Jiaqi Su
- Particle & Interfacial Technology Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
| | - Bifen Chen
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
- Research Institute for Food Nutrition and Human Health, Guangzhou, China
| | - Qiangzhong Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou, China
- Research Institute for Food Nutrition and Human Health, Guangzhou, China
| | - Paul Van der Meeren
- Particle & Interfacial Technology Group, Department of Green Chemistry and Technology, Faculty of Bioscience Engineering, Ghent University, Ghent, Belgium
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Comunian TA, Drusch S, Brodkorb A. Advances of plant-based structured food delivery systems on the in vitro digestibility of bioactive compounds. Crit Rev Food Sci Nutr 2021; 62:6485-6504. [PMID: 33775182 DOI: 10.1080/10408398.2021.1902262] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Food researchers are currently showing a growing interest in in vitro digestibility studies due to their importance for obtaining food products with health benefits and ensuring a balanced nutrient intake. Various bioactive food compounds are sensitive to the digestion process, which results in a lower bioavailability in the gut. The main objective of structured food delivery systems is to promote the controlled release of these compounds at the desired time/place, in addition to protecting them during digestion processes. This review provides an overview of the influence of structured delivery systems on the in vitro digestive behavior. The main delivery systems are summarized, the pros and cons of different structures are outlined, and examples of several studies that optimized the use of these structured systems are provided. In addition, we have reviewed the use of plant-based systems, which have been of interest to food researchers and the food industry because of their health benefits, improved sustainability as well as being an alternative for vegetarian, vegan and consumers suffering from food allergies. In this context, the review provides new insights and comprehensive knowledge regarding the influence of plant-based structured systems on the digestibility of encapsulated compounds and proteins/polysaccharides used in the encapsulation process.
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Affiliation(s)
- Talita A Comunian
- Teagasc Food Research Centre, Moorepark, Fermoy, Co., Cork, Ireland.,Department of Food Technology and Food Material Science, Technische Universität Berlin, Berlin, Germany
| | - Stephan Drusch
- Department of Food Technology and Food Material Science, Technische Universität Berlin, Berlin, Germany
| | - André Brodkorb
- Teagasc Food Research Centre, Moorepark, Fermoy, Co., Cork, Ireland
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Udomrati S, Pantoa T, Gohtani S, Nakajima M, Uemura K, Kobayashi I. Effects of Esterified Maltodextrin on In Vitro Gastrointestinal Digestibility of Tween 80‐Stabilized Oil‐in‐water Emulsion. EUR J LIPID SCI TECH 2020. [DOI: 10.1002/ejlt.202000066] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Sunsanee Udomrati
- Institute of Food Research and Product Development Kasetsart University Bangkok 10900 Thailand
| | - Thidarat Pantoa
- Institute of Food Research and Product Development Kasetsart University Bangkok 10900 Thailand
| | - Shoichi Gohtani
- Department of Applied Biological Science Faculty of Agriculture Kagawa University Kagawa 761‐0795 Japan
| | - Mitsutoshi Nakajima
- Faculty of Life and Environmental Sciences University of Tsukuba Tsukuba 305‐8572 Japan
| | - Kunihiko Uemura
- Food Research Institute National Agriculture and Food Research Organization Tsukuba 305‐8642 Japan
| | - Isao Kobayashi
- Food Research Institute National Agriculture and Food Research Organization Tsukuba 305‐8642 Japan
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12
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An ultrasonic-extracted arabinoglucan from Tamarindus indica L. pulp: A study on molecular and structural characterizations. Int J Biol Macromol 2020; 164:3687-3697. [PMID: 32882273 DOI: 10.1016/j.ijbiomac.2020.08.206] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 07/30/2020] [Accepted: 08/27/2020] [Indexed: 02/06/2023]
Abstract
In this study, an ultrasonic-extracted polysaccharide (nCPTP-55) was obtained with the highest yield (61.08%, w/w) from tamarind pulp, which consisted chiefly of total sugar (85.98%, w/w) with few protein (2.10%, w/w). Monosaccharide analysis showed nCPTP-55 was mainly composed of arabinose (39.19 mol%) and glucose (50.48 mol%) with negligible GlcA (2.05 mol%), indicating the neutral nature of nCPTP-55, which was further elucidated structurally via GC-MS and NMR, i.e., an arabinoglucan composed of →3)-β-D-Glcp-(1→ backbone with only T-α-L-Araf-(1→ branched at O-4 (27.82%) and O-6 (39.99%), resulting in relatively high A/G ratio (0.68-0.70). Based on MM2 minimized energy, the 3D schematic structures of nCPTP-55 could be considered as structural basis for its conformational behavior, which was preliminarily estimated via HPSEC-MALLS as between compact sphere and loosely hyper-branched chain (ρ = 0.84). Therefore, the relationship between molecular structure and conformational behavior was basically established for nCPTP-55, which was in a bid to have a better knowledge of its structure-property and structure-bioactivity relationships potentially required for more applications in food, cosmetic and pharmaceutical fields.
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