Towards the systematic design of multilayer O/W emulsions with tannic acid as an interfacial antioxidant

Alexandraki, Savvia; Leontidis, Epameinondas

doi:10.1039/d1ra03512f

Cited by 3 publications

(5 citation statements)

References 98 publications

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“…50 However, when the BSA−TA non-covalent complex was used as the first layer, the stability of flaxseed oil emulsions decreased as a result of the deleterious emulsifying properties of BSA. 51 Interesting, when TA was introduced in the second layer (emulsions with layers of emulsifiers), the emulsion possessed the highest oxidative stability, but the mechanism is not clear now. Besides, the precise quantification of the interfacial concentration of polyphenols in multilayer emulsions is still not implemented in current studies.…”

Section: Pufa-enriched Emulsion Systemsmentioning

confidence: 99%

“…It was mainly due to the higher portioning of polyphenols on the outer layer and the improvement of interface repulsion between adjacent droplets . However, when the BSA–TA non-covalent complex was used as the first layer, the stability of flaxseed oil emulsions decreased as a result of the deleterious emulsifying properties of BSA . Interesting, when TA was introduced in the second layer (emulsions with layers of emulsifiers), the emulsion possessed the highest oxidative stability, but the mechanism is not clear now.…”

Section: Application Of Polyphenols In Different Pufa-enriched Emulsi...mentioning

confidence: 99%

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Review on the Regulation of Plant Polyphenols on the Stability of Polyunsaturated-Fatty-Acid-Enriched Emulsions: Partitioning Kinetic and Interfacial Engineering

Cheng

Geng

et al. 2022

J. Agric. Food Chem.

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The plant polyphenols are normally presented as natural functional antioxidants, which also possess the potential ability to improve the physicochemical stability of polyunsaturated fatty acid (PUFA)-enriched emulsions by interface engineering. This review discussed the potential effects of polyphenols on the stability of PUFA-enriched emulsions from the perspective of the molecular thermodynamic antioxidative analysis, the kinetic of interfacial partitioning, and the covalent and non-covalent interactions with emulsifiers. Recently, research studies have proven that the interfacial structure of emulsions can be concurrently optimized via promoting interfacial partitioning of polyphenols and further increasing interfacial thickness and strength. Moreover, the applied limitations of polyphenols in PUFA-enriched emulsions were summarized, and then some valuable and constructive viewpoints were put forward in this review to provide guidance for the use of polyphenols in constructing PUFA-enriched emulsions.

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Section: Pufa-enriched Emulsion Systemsmentioning

confidence: 99%

Section: Application Of Polyphenols In Different Pufa-enriched Emulsi...mentioning

confidence: 99%

Review on the Regulation of Plant Polyphenols on the Stability of Polyunsaturated-Fatty-Acid-Enriched Emulsions: Partitioning Kinetic and Interfacial Engineering

Cheng

Geng

et al. 2022

J. Agric. Food Chem.

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“…Other types of delivery systems (e.g., emulsion and MOFs) have also shown the ability to deliver oxidative modulators. To our knowledge, studies have encapsulate different antioxidants using emulsions, such as conventional oil-in-water (O/W) emulsions [66], Pickering emulsions [67], and nano emulsions [68]. The characteristics of the emulsion are critical to the delivery of oxidation regulators, among which the loading efficiency, emulsion droplets size, and stability need to be considered [66].…”

Section: Liposomesmentioning

confidence: 99%

“…To our knowledge, studies have encapsulate different antioxidants using emulsions, such as conventional oil-in-water (O/W) emulsions [66], Pickering emulsions [67], and nano emulsions [68]. The characteristics of the emulsion are critical to the delivery of oxidation regulators, among which the loading efficiency, emulsion droplets size, and stability need to be considered [66]. Another type of delivery system MOF is an organicinorganic hybrid material with intramolecular pores formed by self-assembly of organic ligands and inorganic metal ions or metal ion clusters through coordination bonds [69].…”

Section: Liposomesmentioning

confidence: 99%

Advances in Delivering Oxidative Modulators for Disease Therapy

Wei

Yue

et al. 2022

Research

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Oxidation modulators regarding antioxidants and reactive oxygen species (ROS) inducers have been used for the treatment of many diseases. However, a systematic review that refers to delivery system for divergent modulation of oxidative level within the biomedical scope is lacking. To provide a comprehensive summarization and analysis, we review pilot designs for delivering the oxidative modulators and the main applications for inflammatory treatment and tumor therapy. On the one hand, the antioxidants based delivery system can be employed to downregulate ROS levels at inflammatory sites to treat inflammatory diseases (e.g., skin repair, bone-related diseases, organ dysfunction, and neurodegenerative diseases). On the other hand, the ROS inducers based delivery system can be employed to upregulate ROS levels at the tumor site to kill tumor cells (e.g., disrupt the endogenous oxidative balance and induce lethal levels of ROS). Besides the current designs of delivery systems for oxidative modulators and the main application cases, prospects for future research are also provided to identify intelligent strategies and inspire new concepts for delivering oxidative modulators.

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“…UV-Vis spectroscopy and Polarization Modulation Infrared Reflection-Absorption Spectroscopy (PM-IRRAS) helped to determine the best position of the components (Bovine Serum Albumin-BSA, Tannic Acid-TA, chitosan and pectin) in the design of a multilayer O/W emulsion. UV-Vis and PM-IRRAS spectral measurements were employed to evaluate protein/polysaccharide multilayer arrangement on a solid surface [161].…”

Section: Spectral Properties Of Emulsionsmentioning

confidence: 99%

Spectral Properties of Foams and Emulsions

2021

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The optical and spectral properties of foams and emulsions provide information about their micro-/nanostructures, chemical and time stability and molecular data of their components. Foams and emulsions are collections of different kinds of bubbles or drops with particular properties. A summary of various surfactant and emulsifier types is performed here, as well as an overview of methods for producing foams and emulsions. Absorption, reflectance, and vibrational spectroscopy (Fourier Transform Infrared spectroscopy-FTIR, Raman spectroscopy) studies are detailed in connection with the spectral characterization techniques of colloidal systems. Diffusing Wave Spectroscopy (DWS) data for foams and emulsions are likewise introduced. The utility of spectroscopic approaches has grown as processing power and analysis capabilities have improved. In addition, lasers offer advantages due to the specific properties of the emitted beams which allow focusing on very small volumes and enable accurate, fast, and high spatial resolution sample characterization. Emulsions and foams provide exceptional sensitive bases for measuring low concentrations of molecules down to the level of traces using spectroscopy techniques, thus opening new horizons in microfluidics.

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Towards the systematic design of multilayer O/W emulsions with tannic acid as an interfacial antioxidant

Abstract: Three-step method optimizes multilayer emulsion for maximum tannic acid (TA) amount at surfaces. (1) TA–emulsifier bulk interactions assessed. (2) LbL films built for optimal TA presence. (3) Emulsions built as per LbL design and TA action evaluated.

Cited by 3 publications

References 98 publications

Review on the Regulation of Plant Polyphenols on the Stability of Polyunsaturated-Fatty-Acid-Enriched Emulsions: Partitioning Kinetic and Interfacial Engineering

Review on the Regulation of Plant Polyphenols on the Stability of Polyunsaturated-Fatty-Acid-Enriched Emulsions: Partitioning Kinetic and Interfacial Engineering

Advances in Delivering Oxidative Modulators for Disease Therapy

Spectral Properties of Foams and Emulsions

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