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Zhong L, Wang Z, Ye X, Cui J, Wang Z, Jia S. Molecular simulations guide immobilization of lipase on nest-like ZIFs with regulatable hydrophilic/hydrophobic surface. J Colloid Interface Sci 2024; 667:199-211. [PMID: 38636222 DOI: 10.1016/j.jcis.2024.04.075] [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: 12/12/2023] [Revised: 03/24/2024] [Accepted: 04/12/2024] [Indexed: 04/20/2024]
Abstract
The catalytic performance of immobilized lipase is greatly influenced by functional support, which attracts growing interest for designing supports to achieve their promotive catalytic activity. Many lipases bind strongly to hydrophobic surfaces where they undergo interfacial activation. Herein, the behavioral differences of lipases with distinct lid structures on interfaces of varying hydrophobicity levels were firstly investigated by molecular simulations. It was found that a reasonable hydrophilic/hydrophobic surface could facilitate the lipase to undergo interfacial activation. Building on these findings, a novel "nest"-like superhydrophobic ZIFs (ZIFN) composed of hydrophobic ligands was prepared for the first time and used to immobilize lipase from Aspergillus oryzae (AOL@ZIFN). The AOL@ZIFN exhibited 2.0-folds higher activity than free lipase in the hydrolysis of p-Nitrophenyl palmitate (p-NPP). Especially, the modification of superhydrophobic ZIFN with an appropriate amount of hydrophilic tannic acid can significantly improve the activity of the immobilized lipase (AOL@ZIFN-TA). The AOL@ZIFN-TA exhibited 30-folds higher activity than free lipase, and still maintained 82% of its initial activity after 5 consecutive cycles, indicating good reusability. These results demonstrated that nanomaterials with rational arrangement of the hydrophilic/hydrophobic surface could facilitate the lipase to undergo interfacial activation and improve its activity, displaying the potential of the extensive application.
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Affiliation(s)
- Le Zhong
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, PR China
| | - Zhongjie Wang
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, PR China
| | - Xiaohong Ye
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, PR China
| | - Jiandong Cui
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, PR China.
| | - Ziyuan Wang
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, PR China.
| | - Shiru Jia
- State Key Laboratory of Food Nutrition and Safety, Laboratory of Industrial Fermentation Microbiology, Ministry of Education, Tianjin University of Science and Technology, No. 29, 13th Avenue, Tianjin Economic and Technological Development Area (TEDA), Tianjin 300457, PR China
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2
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Mekkaoui A, Liu Y, Zhang P, Ullah S, Wang C, Xu B. Effect of Bile Salts on the Interfacial Dilational Rheology of Lecithin in the Lipid Digestion Process. J Oleo Sci 2021; 70:1069-1080. [PMID: 34248099 DOI: 10.5650/jos.ess21081] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The effects of bile salts on the emulsifier adsorption layer play a crucial role in lipid digestion. The current study selected sodium cholate (NaCh) and lecithin as model compounds for bile salts and food emulsifiers, respectively. The interface dilational rheological and emulsification properties of NaCh and lecithin were carried out. The results showed that the NaCh molecules could quickly diffuse from the bulk to interface, which broke the tightly-arranged interfacial layer of lecithin and enhanced the viscoelasticity of interfacial film. As a result, the interfacial adsorption layer, which was originally dominated by the slow relaxation processes within the interface, was transformed into one controlled by the fast molecular diffusion exchange. This accelerated the exchange of materials between the bulk and interface, thereby creating suitable conditions for the interfacial adsorption of lipases, which promoted the digestion process. These results provided a mechanism for the promotion of lipid digestion by bile salts from the perspective of interfacial viscoelasticity and relaxation processes. A deeper understanding of the interfacial behavior of bile salts with emulsifiers would provide a basis for the rational design of interfacial layer for modulating lipid digestion.
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Affiliation(s)
- Aicha Mekkaoui
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
| | - Yang Liu
- School of Light Industry, Beijing Technology and Business University
| | - Pingping Zhang
- School of Light Industry, Beijing Technology and Business University
| | - Sana Ullah
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
| | - Ce Wang
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
| | - Baocai Xu
- School of Light Industry, Beijing Technology and Business University.,Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology and Business University
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3
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Whitby CP. Structuring Edible Oils With Fumed Silica Particles. FRONTIERS IN SUSTAINABLE FOOD SYSTEMS 2020. [DOI: 10.3389/fsufs.2020.585160] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022] Open
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4
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Park H, Ha ES, Kim MS. Current Status of Supersaturable Self-Emulsifying Drug Delivery Systems. Pharmaceutics 2020; 12:pharmaceutics12040365. [PMID: 32316199 PMCID: PMC7238279 DOI: 10.3390/pharmaceutics12040365] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2020] [Revised: 04/09/2020] [Accepted: 04/14/2020] [Indexed: 12/13/2022] Open
Abstract
Self-emulsifying drug delivery systems (SEDDSs) are a vital strategy to enhance the bioavailability (BA) of formulations of poorly water-soluble compounds. However, these formulations have certain limitations, including in vivo drug precipitation, poor in vitro in vivo correlation due to a lack of predictive in vitro tests, issues in handling of liquid formulation, and physico-chemical instability of drug and/or vehicle components. To overcome these limitations, which restrict the potential usage of such systems, the supersaturable SEDDSs (su-SEDDSs) have gained attention based on the fact that the inclusion of precipitation inhibitors (PIs) within SEDDSs helps maintain drug supersaturation after dispersion and digestion in the gastrointestinal tract. This improves the BA of drugs and reduces the variability of exposure. In addition, the formulation of solid su-SEDDSs has helped to overcome disadvantages of liquid or capsule dosage form. This review article discusses, in detail, the current status of su-SEDDSs that overcome the limitations of conventional SEDDSs. It discusses the definition and range of su-SEDDSs, the principle mechanisms underlying precipitation inhibition and enhanced in vivo absorption, drug application cases, biorelevance in vitro digestion models, and the development of liquid su-SEDDSs to solid dosage forms. This review also describes the effects of various physiological factors and the potential interactions between PIs and lipid, lipase or lipid digested products on the in vivo performance of su-SEDDSs. In particular, several considerations relating to the properties of PIs are discussed from various perspectives.
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5
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Joyce P, Ulmefors H, Garcia-Bennett A, Prestidge CA. Microporosity, Pore Size, and Diffusional Path Length Modulate Lipolysis Kinetics of Triglycerides Adsorbed onto SBA-15 Mesoporous Silica Particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:3367-3376. [PMID: 32167765 DOI: 10.1021/acs.langmuir.0c00253] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Understanding lipase-mediated hydrolysis mechanisms within solid-state nanocarriers is fundamental for the rational design of lipid-based formulations. In this study, SBA-15 ordered mesoporous silica (MPS) particles were engineered with well-controlled nanostructural properties to systematically elucidate the role of intrawall microporosity, mesopore size, and particle structure on lipase activity. The microporosity and diffusional path length were shown to be key modulators for lipase-provoked hydrolysis of medium chain triglycerides confined within MPS, with small changes in the pore size, between 9 and 13 nm, showing now a clear correlation to lipase activity. Lipid speciation within MPS after lipolysis, obtained through 1H NMR, indicated that free fatty acids preferentially adsorbed to rod-shaped MPS (RodMPS) particles with high microporosity. MPS that formed aggregated spindle-like structures (AggMPS) had intrinsically reduced microporosity, which was hypothesized to limit lipase/lipid diffusion to and from the MPS pores and thus retard lipolysis kinetics. A linear correlation between the microporosity and the extent of lipase-provoked hydrolysis was observed within both AggMPS and RodMPS, ultimately indicating that the intricate interplay between the microporosity and lipid/lipase diffusion can be harnessed to optimize lipolysis kinetics for silica-lipid hybrid carriers. The new insights derived in this study are integral to the future development of solid-state lipid-based nanocarriers that control the lipase activity for improving the absorption of poorly soluble bio-active compounds.
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Affiliation(s)
- Paul Joyce
- School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, Adelaide, South Australia 5000, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide 5000, Australia
| | - Hanna Ulmefors
- School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, Adelaide, South Australia 5000, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide 5000, Australia
| | | | - Clive A Prestidge
- School of Pharmacy and Medical Sciences, University of South Australia, City East Campus, Adelaide, South Australia 5000, Australia
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, University of South Australia, Adelaide 5000, Australia
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6
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Zieniuk B, Fabiszewska A, Białecka-Florjańczyk E. Screening of solvents for favoring hydrolytic activity of Candida antarctica Lipase B. Bioprocess Biosyst Eng 2019; 43:605-613. [PMID: 31734716 DOI: 10.1007/s00449-019-02252-0] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Accepted: 11/08/2019] [Indexed: 02/04/2023]
Abstract
Lipases are a group of enzymes of considerable significance in organic synthesis, among which Candida antarctica lipase B (CALB) is one of the most widely studied enzymes. The activity of the biocatalyst has been intensively characterized in many organic media, but this paper aimed to compare the effect of 20 different solvents on the activity of CALB in the hydrolysis of p-nitrophenyl laurate. Nonpolar, polar aprotic, and polar protic solvents were used for enzyme pretreatment and then entered the composition of mixed solvents reaction medium. An impact of solvents on solvation processes affecting the catalysis steps, protein denaturation, and changes of its conformation was discussed. Moreover the hydrolytic activity of CALB with partition coefficient (logP) of the solvent used was correlated. It was emphasized that the substrate solubility plays an important role in solvent selection. In the presence of hydrophobic solvents, hydration layer becomes more hydrophobic facilitating the substrate access to the enzyme surface. In turn, polar compounds are good solvents for organic substrates facilitating the penetration of the aqueous layer that surrounds the surface of the enzyme. Two variants proved to be favorable for ester hydrolysis reaction: isooctane or polar solvent such as acetone, tert -butyl methyl ether, tert-butanol or acetonitrile.
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Affiliation(s)
- Bartłomiej Zieniuk
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776, Warsaw, Poland.
| | - Agata Fabiszewska
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776, Warsaw, Poland
| | - Ewa Białecka-Florjańczyk
- Department of Chemistry, Institute of Food Sciences, Warsaw University of Life Sciences, 159c Nowoursynowska St., 02-776, Warsaw, Poland
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7
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Joyce P, Dening TJ, Meola TR, Schultz HB, Holm R, Thomas N, Prestidge CA. Solidification to improve the biopharmaceutical performance of SEDDS: Opportunities and challenges. Adv Drug Deliv Rev 2019; 142:102-117. [PMID: 30529138 DOI: 10.1016/j.addr.2018.11.006] [Citation(s) in RCA: 62] [Impact Index Per Article: 12.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 11/21/2018] [Accepted: 11/27/2018] [Indexed: 01/28/2023]
Abstract
Self-emulsifying drug delivery systems (SEDDS) offer potential for overcoming the inherent slow dissolution and poor oral absorption of hydrophobic drugs by retaining them in a solubilised state during gastrointestinal transit. However, the promising biopharmaceutical benefits of liquid lipid formulations has not translated into widespread commercial success, due to their susceptibility to long term storage and in vivo precipitation issues. One strategy that has emerged to overcome such limitations, is to combine the solubilisation and dissolution enhancing properties of lipids with the stabilising effects of solid carrier materials. The development of intelligent hybrid drug formulations has presented new opportunities to harness the potential of emulsified lipids in optimising oral bioavailability for lipophilic therapeutics. Specific emphasis of this review is placed on the impact of solidification approaches and excipients on the biopharmaceutical performance of self-emulsifying lipids, with findings highlighting the key design considerations that should be implemented when developing hybrid lipid-based formulations.
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8
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Joyce P, Gustafsson H, Prestidge CA. Engineering intelligent particle-lipid composites that control lipase-mediated digestion. Adv Colloid Interface Sci 2018; 260:1-23. [PMID: 30119842 DOI: 10.1016/j.cis.2018.08.001] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2018] [Revised: 08/01/2018] [Accepted: 08/02/2018] [Indexed: 12/25/2022]
Abstract
Nanostructured particle-lipid composites have emerged as state-of-the-art carrier systems for poorly water-soluble bioactive molecules due to their ability to control and enhance the lipase-mediated hydrolysis of encapsulated triglycerides, leading to a subsequent improvement in the solubilisation and absorption of encapsulated species. The first generation of particle-lipid composites (i.e. silica-lipid hybrid (SLH) microparticles) were designed and fabricated by spray drying a silica nanoparticle-stabilised Pickering emulsion, to create a novel three-dimensional architecture, whereby lipid droplets were encapsulated within a porous matrix support. The development of SLH microparticles has acted as a solid foundation for the synthesis of several next generation particle-lipid composites, including polymer-lipid hybrid (PLH) and clay-lipid hybrid systems (CLH), which present lipase with unique lipid microenvironments for optimised lipolysis. This review details the methods utilised to engineer lipid hybrid particles and the strategic investigations that have been performed to determine the influence of key material characteristics on digestion enzyme activity. In doing so, this provides insight into manipulating the mechanism of lipase action through the intelligent design of lipid-based biomaterials for their use in drug delivery formulations and novel functional foods.
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9
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Joyce P, Gustafsson H, Prestidge CA. Enhancing the lipase-mediated bioaccessibility of omega-3 fatty acids by microencapsulation of fish oil droplets within porous silica particles. J Funct Foods 2018. [DOI: 10.1016/j.jff.2018.06.015] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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10
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Joyce P, Dening TJ, Gustafsson H, Prestidge CA. Modulating the Lipase-Mediated Bioactivity of Particle-Lipid Conjugates Through Changes in Nanostructure and Surface Chemistry. EUR J LIPID SCI TECH 2017. [DOI: 10.1002/ejlt.201700213] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Paul Joyce
- Department of Physics; Chalmers University of Technology; Gothenburg SE-412 96 Sweden
- School of Pharmacy and Medical Sciences; University of South Australia; City East Campus Adelaide South Australia 5000 Australia
| | - Tahnee J. Dening
- School of Pharmacy and Medical Sciences; University of South Australia; City East Campus Adelaide South Australia 5000 Australia
- University of South Australia, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology; Mawson Lakes Campus Mawson Lakes
| | - Hanna Gustafsson
- School of Pharmacy and Medical Sciences; University of South Australia; City East Campus Adelaide South Australia 5000 Australia
- University of South Australia, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology; Mawson Lakes Campus Mawson Lakes
| | - Clive A. Prestidge
- School of Pharmacy and Medical Sciences; University of South Australia; City East Campus Adelaide South Australia 5000 Australia
- University of South Australia, ARC Centre of Excellence in Convergent Bio-Nano Science and Technology; Mawson Lakes Campus Mawson Lakes
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11
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Gao J, Jiang Y, Lu J, Han Z, Deng J, Chen Y. Dopamine-functionalized mesoporous onion-like silica as a new matrix for immobilization of lipase Candida sp. 99-125. Sci Rep 2017; 7:40395. [PMID: 28067335 PMCID: PMC5220347 DOI: 10.1038/srep40395] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2016] [Accepted: 12/06/2016] [Indexed: 02/06/2023] Open
Abstract
Dopmine functionalized mesoporous onion-like silica (DPMS) was synthesized via a biomimetic coating, and lipase Candida sp. 99-125 (LCS) was immobilized in DPMS (LCS@DPMS) by physical adsorption in this study. The DPMS was characterized by SEM, TEM, BET and FT-IR, and it was shown that the DPMS had clear multishell structures with large surface area of 419 m2/g. The activity, pH stability, thermal stability, storage stability, and reusability of the LCS@DPMS were investigated in detail. The stabilities of LCS@DPMS were improved significantly compared to the free lipase and LCS@MS (LCS immobilized in unfunctionalized mesoporous onion-like silica by physical adsorption). All the results indicated that the DPMS had high efficiency and improved stability for lipase immobilization.
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Affiliation(s)
- Junkai Gao
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yanjun Jiang
- School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin, 300130, China
| | - Jinshu Lu
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Zhi Han
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Jiajia Deng
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
| | - Yan Chen
- School of Maritime and Civil Engineering, Zhejiang Ocean University, Zhoushan, 316022, China
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12
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Yasmin R, Rao S, Bremmell K, Prestidge C. Synergistic role of solid lipid and porous silica in improving the oral delivery of weakly basic poorly water soluble drugs. Eur J Pharm Sci 2017; 96:508-514. [DOI: 10.1016/j.ejps.2016.10.026] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2016] [Revised: 10/20/2016] [Accepted: 10/22/2016] [Indexed: 11/16/2022]
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13
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Nanostructuring Biomaterials with Specific Activities towards Digestive Enzymes for Controlled Gastrointestinal Absorption of Lipophilic Bioactive Molecules. Adv Colloid Interface Sci 2016; 237:52-75. [PMID: 28314428 DOI: 10.1016/j.cis.2016.10.003] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2016] [Revised: 10/18/2016] [Accepted: 10/18/2016] [Indexed: 11/24/2022]
Abstract
This review describes the development of novel lipid-based biomaterials that modulate fat digestion for the enhanced uptake of encapsulated lipophilic bioactive compounds (e.g. drugs and vitamins). Specific focus is directed towards analysing how key material characteristics affect the biological function of digestive lipases and manipulate lipolytic digestion. The mechanism of lipase action is a complex, interfacial process, whereby hydrolysis can be controlled by the ability for lipase to access and adsorb to the lipid-in-water interface. However, significant conjecture exists within the literature regarding parameters that influence the activities of digestive lipases. Important findings from recent investigations that strategically examined the interplay between the interfacial composition of the lipid microenvironment and lipolysis kinetics in simulated biophysical environments are presented. The correlation between lipolysis and the rate of solubilisation and absorption of lipophilic compounds in the gastrointestinal tract (GIT) is detailed. Greater insights into the mechanism of lipase action have provided a new approach for designing colloidal carriers that orally deliver poorly soluble compounds, directly impacting the pharmaceutical and food industries.
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14
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Joyce P, Kempson I, Prestidge CA. Orientating lipase molecules through surface chemical control for enhanced activity: A QCM-D and ToF-SIMS investigation. Colloids Surf B Biointerfaces 2016; 142:173-181. [DOI: 10.1016/j.colsurfb.2016.02.059] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 02/23/2016] [Accepted: 02/25/2016] [Indexed: 11/16/2022]
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15
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Joyce P, Whitby CP, Prestidge CA. Interfacial processes that modulate the kinetics of lipase-mediated catalysis using porous silica host particles. RSC Adv 2016. [DOI: 10.1039/c6ra08934h] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Surface immobilised lipases are important bioactive materials that have a wide range of applications in the biotechnology, chemical and pharmaceutical industries.
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Affiliation(s)
- Paul Joyce
- School of Pharmacy and Medical Sciences
- University of South Australia, City East Campus
- Adelaide
- Australia
| | - Catherine P. Whitby
- Institute of Fundamental Sciences
- Massey University
- Palmerston North 4442
- New Zealand
| | - Clive A. Prestidge
- School of Pharmacy and Medical Sciences
- University of South Australia, City East Campus
- Adelaide
- Australia
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16
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Joyce P, Kempson I, Prestidge CA. QCM-D and ToF-SIMS Investigation to Deconvolute the Relationship between Lipid Adsorption and Orientation on Lipase Activity. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2015; 31:10198-10207. [PMID: 26340506 DOI: 10.1021/acs.langmuir.5b02476] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Quartz crystal microbalance with dissipation (QCM-D) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) were used to provide insights into the relationship between lipid adsorption kinetics and molecular behavior in porous silica particles of varying hydrophobicities on lipase activity. Lipase (an interfacial enzyme that cleaves ester bonds to break down lipids to fatty acids and monoglycerides) activity was controlled by loading triglycerides at different surface coverages in hydrophilic and hydrophobic porous silica particles. The rate of lipid adsorption increased 2-fold for the hydrophobic surface compared to the hydrophilic surface. However, for submonolayer lipid coverage, the hydrophilic surface enhanced lipase activity 4-fold, whereas the hydrophobic surface inhibited lipase activity 16-fold, compared to lipid droplets in water. A difference in lipid orientation for low surface coverage, evidenced by ToF-SIMS, indicated that lipid adsorbs to hydrophilic silica in a conformation promoting hydrolysis. Multilayer coverage on hydrophobic and hydrophilic surfaces was indistinguishable with ToF-SIMS analysis. Increased lipid adsorption for both substrates facilitated digestion kinetics comparable to a conventional emulsion. Improved understanding of the interfacial adsorption and orientation of lipid and its digestibility in porous silica has implications in improving the uptake of pharmaceuticals and nutrients from lipid-based delivery systems.
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Affiliation(s)
- Paul Joyce
- School of Pharmacy and Medical Sciences, University of South Australia , Playford Building P4-04, City East Campus, Adelaide, South Australia 5001, Australia
| | - Ivan Kempson
- Future Industries Institute, University of South Australia , Mawson Lakes Campus, Mawson Lakes, South Australia 5095, Australia
| | - Clive A Prestidge
- School of Pharmacy and Medical Sciences, University of South Australia , Playford Building P4-04, City East Campus, Adelaide, South Australia 5001, Australia
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17
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Zhao D, Peng C, Zhou J. Lipase adsorption on different nanomaterials: a multi-scale simulation study. Phys Chem Chem Phys 2015; 17:840-50. [DOI: 10.1039/c4cp04696j] [Citation(s) in RCA: 69] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Adsorption orientations of lipase on different nanomaterials with different surface chemistry.
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Affiliation(s)
- Daohui Zhao
- School of Chemistry and Chemical Engineering
- Guangdong Provincial Key Lab for Green Chemical Product Technology
- South China University of Technology
- Guangzhou
- P. R. China
| | - Chunwang Peng
- School of Chemistry and Chemical Engineering
- Guangdong Provincial Key Lab for Green Chemical Product Technology
- South China University of Technology
- Guangzhou
- P. R. China
| | - Jian Zhou
- School of Chemistry and Chemical Engineering
- Guangdong Provincial Key Lab for Green Chemical Product Technology
- South China University of Technology
- Guangzhou
- P. R. China
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18
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Chen PC, Huang XJ, Xu ZK. Activation and deformation of immobilized lipase on self-assembled monolayers with tailored wettability. Phys Chem Chem Phys 2015; 17:13457-65. [DOI: 10.1039/c5cp00802f] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The relationships between the activity of immobilized lipase and its adsorption behavior, distribution, and structure were revealed for the first time.
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Affiliation(s)
- Peng-Cheng Chen
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Xiao-Jun Huang
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
| | - Zhi-Kang Xu
- MOE Key Laboratory of Macromolecular Synthesis and Functionalization
- Department of Polymer Science and Engineering
- Zhejiang University
- Hangzhou
- China
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19
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Bernal C, Illanes A, Wilson L. Heterofunctional hydrophilic-hydrophobic porous silica as support for multipoint covalent immobilization of lipases: application to lactulose palmitate synthesis. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:3557-3566. [PMID: 24621332 DOI: 10.1021/la4047512] [Citation(s) in RCA: 79] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Lipase-catalyzed synthesis of sugar esters, as lactulose palmitate, requires harsh conditions, making it necessary to immobilize the enzyme. Therefore, a study was conducted to evaluate the effect of different chemical surfaces of hierarchical meso-macroporous silica in the immobilization of two lipases from Pseudomonas stutzeri (PsL) and Alcaligenes sp. (AsL), which exhibit esterase activity. Porosity and chemical surface of silica supports, before and after functionalization and after immobilization, were characterized by gas adsorption and Fourier transform infrared (FTIR) spectroscopy. PsL and AsL were immobilized in octyl (OS), glyoxyl (GS), and octyl-glyoxyl silica (OGS). Hydrolytic activity, thermal and solvent stability, and sugar ester synthesis were evaluated with those catalysts. The best support in terms of expressed activity was OS in the case of PsL (100 IU g(-1)), while OS and OGS were the best for AsL with quite similar expressed activities (60 and 58 IU g(-1), respectively). At 60 °C in aqueous media the more stable biocatalysts were GS-PsL and OGS-AsL (half-lives of 566 and 248 h, respectively), showing the advantage of a heterofunctional support in the latter case. Lactulose palmitate synthesis was carried out in acetone medium (with 4% of equilibrium moisture) at 40 °C obtaining palmitic acid conversions higher than 20% for all biocatalysts, being the highest of those obtained with OGS-AsL and OS-PsL. Therefore, screening of different chemical surfaces on porous silica used as supports for lipase immobilization allowed obtaining active and stable biocatalyst to be employed in the novel synthesis of lactulose palmitate.
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Affiliation(s)
- Claudia Bernal
- Escuela de Ingeniería Bioquímica, Pontificia Universidad Católica de Valparaíso , Avenida Brasil 2147, Valparaíso, Chile
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Joyce P, Tan A, Whitby CP, Prestidge CA. The role of porous nanostructure in controlling lipase-mediated digestion of lipid loaded into silica particles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:2779-2788. [PMID: 24552363 DOI: 10.1021/la500094b] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
The rate and extent of lipolysis, the breakdown of fat into molecules that can be absorbed into the bloodstream, depend on the interfacial composition and structure of lipid (fat) particles. A novel method for controlling the interfacial properties is to load the lipid into porous colloidal particles. We report on the role of pore nanostructure and surface coverage in controlling the digestion kinetics of medium-chain and long-chain triglycerides loaded into porous silica powders of different particle size, porosity, and hydrophobicity/hydrophilicity. An in vitro lipolysis model was used to measure digestion kinetics of lipid by pancreatic lipase, a digestive enzyme. The rate and extent of lipid digestion were significantly enhanced when a partial monolayer of lipid was loaded in porous hydrophilic silica particles compared to a submicrometer lipid-in-water emulsion or a coarse emulsion. The inhibitory effect of digestion products was clearly evident for digestion from a submicrometer emulsion and coarse emulsion. This effect was minimal, however, in the two silica-lipid systems. Lipase action was inhibited for lipid loaded in the hydrophobic silica and considered due to the orientation of lipase adsorption on the methylated silica surface. Thus, hydrophilic silica promotes enhanced digestion kinetics, whereas hydrophobic silica exerts an inhibitory effect on hydrolysis. Evaluation of digestion kinetics enabled the mechanism for enhanced rate of lipolysis in silica-lipid systems to be derived and detailed. These investigations provide valuable insights for the optimization of smart food microparticles and lipid-based drug delivery systems based on lipid excipients and porous nanoparticles.
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Affiliation(s)
- Paul Joyce
- Ian Wark Research Institute, University of South Australia , Mawson Lakes Campus, Mawson Lakes, South Australia 5095, Australia
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Inprakhon P, Panlawan P, Pongtharankul T, Marie E, Wiemann LO, Durand A, Sieber V. Toward one-pot lipase-catalyzed synthesis of poly(ɛ-caprolactone) particles in aqueous dispersion. Colloids Surf B Biointerfaces 2014; 113:254-60. [DOI: 10.1016/j.colsurfb.2013.09.011] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2013] [Revised: 09/04/2013] [Accepted: 09/05/2013] [Indexed: 12/01/2022]
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Abstract
Enzyme immobilization has been investigated to improve lipase properties over the past few decades. Different methods and various carriers have been employed to immobilize enzyme. However, the application of enzymatic technology in large scale is rarely seen during the industrial process. The main obstacles are a high cost of the immobilization and the poor performance of immobilized lipase. This review focuses on the current status of enzyme immobilization, which aims to summarize the latest research on the parameters affecting the performance of immobilized enzyme. Particularly, the effect of immobilization methods, immobilization carriers, and enzyme loading has been discussed.
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Zhang DH, Yuwen LX, Li C, Li YQ. Effect of poly(vinyl acetate-acrylamide) microspheres properties and steric hindrance on the immobilization of Candida rugosa lipase. BIORESOURCE TECHNOLOGY 2012; 124:233-236. [PMID: 22989650 DOI: 10.1016/j.biortech.2012.08.083] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2012] [Revised: 07/24/2012] [Accepted: 08/07/2012] [Indexed: 06/01/2023]
Abstract
Poly(vinyl acetate-acrylamide) microspheres were synthesized in the absence or presence of isooctane via suspension polymerization and utilized as carriers to immobilize Candida rugosa lipase. When the hydrophobic/hydrophilic surface characteristics of the microspheres were modified by changing the ratio of vinyl acetate (hydrophobic monomer) to acrylamide (hydrophilic monomer) from 50:50 to 86:24, the immobilization ratio changed from 45% to 92% and the activity of the immobilized lipase increased from 202.5 to 598.0 U/g microsphere. Excessive lipase loading caused intermolecular steric hindrance, which resulted in a decline in lipase activity. The maximum specific activity of the immobilized lipase (4.65 U/mg lipase) was higher than that of free lipase (3.00 U/mg lipase), indicating a high activity recovery during immobilization.
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Affiliation(s)
- Dong-Hao Zhang
- College of Pharmacy, Hebei University, Baoding 071002, China.
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Zhang DH, Yuwen LX, Xie YL, Li W, Li XB. Improving immobilization of lipase onto magnetic microspheres with moderate hydrophobicity/hydrophilicity. Colloids Surf B Biointerfaces 2012; 89:73-8. [DOI: 10.1016/j.colsurfb.2011.08.031] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2011] [Revised: 08/26/2011] [Accepted: 08/29/2011] [Indexed: 10/17/2022]
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Rodríguez-Argüelles MC, Villalonga R, Serra C, Cao R, Sanromán MA, Longo MA. A copper(II) thiosemicarbazone complex built on gold for the immobilization of lipase and laccase. J Colloid Interface Sci 2010; 348:96-100. [DOI: 10.1016/j.jcis.2010.04.016] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2010] [Revised: 04/08/2010] [Accepted: 04/09/2010] [Indexed: 10/19/2022]
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Rodrigues RC, Fernandez-Lafuente R. Lipase from Rhizomucor miehei as an industrial biocatalyst in chemical process. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2010.02.003] [Citation(s) in RCA: 171] [Impact Index Per Article: 12.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Reis P, Watzke H, Leser M, Holmberg K, Miller R. Interfacial mechanism of lipolysis as self-regulated process. Biophys Chem 2010; 147:93-103. [DOI: 10.1016/j.bpc.2010.01.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2009] [Revised: 01/17/2010] [Accepted: 01/17/2010] [Indexed: 10/19/2022]
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Gao S, Wang Y, Wang W, Luo G, Dai Y. Enhancing performance of lipase immobilized on methyl-modified silica aerogels at the adsorption and catalysis processes: Effect of cosolvents. ACTA ACUST UNITED AC 2010. [DOI: 10.1016/j.molcatb.2009.10.010] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Bhat R, Sell S, Wagner R, Zhang JT, Pan C, Garipcan B, Boland W, Bossert J, Klemm E, Jandt KD. The Janus-SAM approach for the flexible functionalization of gold and titanium oxide surfaces. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2010; 6:465-470. [PMID: 19924741 DOI: 10.1002/smll.200900670] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
A novel approach is developed to address the requirement of multiple stamps and inks for microcontact printing (microCP) onto different substrate surfaces. This approach relies on microCP one divalent molecule, which is able to form Janus self-assembled monolayers (JSAMs) with a labile cleavable centre, thus providing a facile method for the chemical derivatization of different substrate surfaces. This study presents an answer to the challenges presented within a highly versatile application, microCP. N-(3-diethylphosphatoxy)propyl-11-mercaptoundecanamide is used for the first time as an ink for microCP onto both gold and titanium oxide surfaces, utilizing the same polydimethylsiloxane stamp. Following printing, the JSAMs are enzymatically treated on these two different substrates to reveal different functional groups. The newly formed surfaces are subjected to additional surface reactions and used for the chemisorption of bovine serum albumin. At each stage, these JSAMs are characterized by X-ray photoelectron spectroscopy and dynamic water-contact-angle measurements. Confocal laser scanning microscopy is used for the characterization of the adsorbed proteins.
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Affiliation(s)
- Rahila Bhat
- Institute of Materials Science & Technology (IMT), Friedrich-Schiller-University (FSU), Löbdergraben 32, 07743 Jena, Germany
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Reis P, Holmberg K, Watzke H, Leser ME, Miller R. Lipases at interfaces: a review. Adv Colloid Interface Sci 2009; 147-148:237-50. [PMID: 18691682 DOI: 10.1016/j.cis.2008.06.001] [Citation(s) in RCA: 493] [Impact Index Per Article: 32.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2008] [Revised: 06/20/2008] [Accepted: 06/23/2008] [Indexed: 11/20/2022]
Abstract
Lipases are acyl hydrolases that play a key role in fat digestion by cleaving long-chain triglycerides into polar lipids. Due to an opposite polarity between the enzyme (hydrophilic) and their substrates (lipophilic), lipase reaction occurs at the interface between the aqueous and the oil phases. Hence, interfaces are the key spots for lipase biocatalysis and an appropriate site for modulating lipolysis. Surprisingly enough, knowledge about the effects of the interfacial composition on lipase catalysis is still limited and only described by the term "interfacial quality". Recent systematic studies based on a biophysical approach allowed for the first time to show the effects of the interfacial microenvironment on lipase catalysis. These studies demonstrate that lipase activity as a function of interfacial composition is more attributed to substrate inaccessibility rather than to enzyme denaturation or inactivation, as it is often hypothesized. A detailed analysis of the interfacial properties of all compounds involved in triglyceride digestion revealed that lipolysis is a self-regulated reaction. This feedback mechanism can be explored as a new avenue to control lipase catalysis. To substantiate this hypothesis, oil hydrolysis in a model gastro-intestinal system was performed, which can be seen as an interfacial engineering approach to enzyme reactivity control. The presented characterization of the interfacial composition and its consequences provide a new approach for the understanding of lipase reactions at interfaces with direct impact on biotechnological and health care applications.
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Affiliation(s)
- P Reis
- Nestlé Research Center, CH-1000 Lausanne 26, Switzerland
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McClements DJ, Decker EA, Park Y. Controlling Lipid Bioavailability through Physicochemical and Structural Approaches. Crit Rev Food Sci Nutr 2008; 49:48-67. [DOI: 10.1080/10408390701764245] [Citation(s) in RCA: 282] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Reis P, Holmberg K, Miller R, Krägel J, Grigoriev DO, Leser ME, Watzke HJ. Competition between lipases and monoglycerides at interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:7400-7407. [PMID: 18547084 DOI: 10.1021/la800531y] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Tensiometry (the pendant drop technique), interfacial shear rheology, and ellipsometry have been used to study the effect of polar lipids that are generated during fat digestion on the behavior of lipases at the oil-water interface. Both Sn-1,3 regiospecific and nonregiospecific lipases have been used, and a noncatalytically active protein, beta-lacloglobulin, has been used as reference in the interfacial shear rheology experiments. The results from the pendant drop measurements and the interfacial rheology studies were in agreement with each other and demonstrated that the Sn-2 monoglyceride, which is one of the lipolysis products generated when a Sn-1,3 regiospecific lipase catalyzes triglyceride hydrolysis, is very interfacially active and efficiently expels the enzyme from the interface. Ellipsometry conducted at the liquid-liquid interface showed that the lipase forms a sublayer in the aqueous phase, just beneath the monoglyceride-covered interface. Sn-1/3 monoglycerides do not behave this way because they are rapidly degraded to fatty acid and glycerol and the fatty acid (or the fatty acid salt) does not have enough interfacial activity to expel the lipase from the interface. Since the lipases present in the gastrointestinal tract are highly Sn-1,3 regiospecific, we believe that the results obtained can be transferred to the in vivo situation. The formation of stable and amphiphilic Sn-2 monoglycerides can be seen as a self-regulatory process for fat digestion.
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Affiliation(s)
- Pedro Reis
- Nestle Research Center, CH-1000 Lausanne 26, Switzerland
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Designing Food Structure to Control Stability, Digestion, Release and Absorption of Lipophilic Food Components. FOOD BIOPHYS 2008. [DOI: 10.1007/s11483-008-9070-y] [Citation(s) in RCA: 157] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Rich RL, Myszka DG. Survey of the year 2006 commercial optical biosensor literature. J Mol Recognit 2007; 20:300-66. [DOI: 10.1002/jmr.862] [Citation(s) in RCA: 97] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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