Impact of hydroxypropylmethylcellulose on whey protein concentrate spread film at the air–water interface: Structural and surface dilatational characteristics

Pérez, Oscar E.; Sánchez, Cecilio Carrera; Pilosof, Ana M.R.; Patino, Juan M. Rodrı́guez

doi:10.1016/j.colsurfa.2014.09.030

Cited by 17 publications

(3 citation statements)

References 45 publications

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“…However, there exist a group of surface active polysaccharides, such as cellulose derivatives, that have received a great interest recently because of their physico-chemical properties and many technological applications (Arboleya & Wilde, 2005;P erez, S anchez, Pilosof, & Rodríguez Patino, 2009;Rodríguez Patino and Pilosof, 2011). Methylcellulose (MC) and hydroxypropylmethylcellulose (HPMC) are considered the principal cellulose derivatives and they are used in a broad range of applications in pharmaceutical and food formulations (P erez, Carrera S anchez, Pilosof, & Rodríguez Patino, 2015).…”

Section: Introductionmentioning

confidence: 99%

The impact of HPMC structure in the modulation of in vitro lipolysis: The role of bile salts

et al. 2017

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Section: Introductionmentioning

confidence: 99%

The impact of HPMC structure in the modulation of in vitro lipolysis: The role of bile salts

et al. 2017

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“…The change in IFT with adsorption time ( t ) of samples adsorbed at the soy oil–water interface was examined using the dynamic drop formation method 24 . The variation of interfacial dilatational elasticity modulus ( E d ) with adsorption time ( t ) of samples adsorbed at the soy oil–water interface was examined using the axisymmetric dynamic drop formation method 25 . The testing equipment was a video optical contact angle meter (OCA25; Dataphysics Company, Beijing, China), and the duration of each sample test was 3 h.…”

Section: Methodsmentioning

confidence: 99%

Composition, morphology, interfacial rheology and emulsifying ability of soy hull polysaccharides extracted with ammonium oxalate and sodium citrate as extractants

et al. 2023

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BACKGROUND Soy hull, a by‐product of crop processing, is rich in pectin‐like polysaccharides that have potential for thickening, gelling and emulsifying applications. The effect of ammonium oxalate (SHPA) and sodium citrate (SHPS) on the conformation, physicochemical properties and emulsifying ability of soy hull polysaccharide (SHP) were investigated. RESULTS The composition analysis showed that SHPS had more polysaccharide, protein, and higher molecular weight than SHPA. Images of atomic force microscopy (AFM) and scanning electron microscopy (SEM) showed that SHPS molecules appeared spherical bodies with smooth and firm surfaces, while SHPA molecules appeared chain‐like bodies with rough and wrinkled surface. At the oil–water interface, SHPS adsorbed faster and formed a more elastic interfacial layer than SHPA. The characterization of the prepared emulsions showed that the SHPS emulsion was a smaller particle size and more stable system within 30 days than SHPA emulsion, especially at the SHPS concentration of 9 mg mL−1. Images of cryo‐scanning electron microscopy (cryo‐SEM) also demonstrated SHPS formed clearer network structure on the surface of the oil droplets, compared to SHPA. CONCLUSION Overall, ammonium oxalate and sodium citrate significantly influenced the composition and properties of the SHP. SHPS exhibited a better emulsifying ability than SHPA, which was mainly due to the higher protein content of SHPS and the sodium ion (Na+) residue of sodium citrate. This study is useful for the extraction and application of SHP and other plant‐based polysaccharides. © 2023 Society of Chemical Industry.

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“…In most cases, cellulose derivatives are used [10,11], because of their physico-chemical properties [12][13][14]. Especially, methylcellulose (MC) and hydroxypropyl-methylcellulose (HPMC) are considered the principal cellulose derivatives [15]. HPMCs are non-ionic cellulose derivatives with methyl (hydrophobic) and hydroxypropyl (hydrophilic) groups added to the anhydro-glucose backbone.…”

Section: Introductionmentioning

confidence: 99%

Structural Study of (Hydroxypropyl)Methyl Cellulose Microemulsion-Based Gels Used for Biocompatible Encapsulations

et al. 2020

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(Hydroxypropyl)methyl cellulose (HPMC) can be used to form gels integrating a w/o microemulsion. The formulation in which a microemulsion is mixed with a hydrated HPMC matrix has been successfully used as a carrier of biocompatible ingredients. However, little is known about the structure of these systems. To elucidate this, scanning electron microscopy was used to examine the morphology and the bulk of the microemulsion-based gels (MBGs) and small-angle X-ray scattering to clarify the structure and detect any residual reverse micelles after microemulsion incorporation in the gel. Electron paramagnetic resonance spectroscopy was applied using spin probes to investigate the polar and non-polar areas of the gel. Furthermore, the enzyme-labelling technique was followed to investigate the location of an enzyme in the matrix. A structural model for HPMC matrix is proposed according to which, although a w/o microemulsion is essential to form the final gel, no microemulsion droplets can be detected after incorporation in the gel. Channels are formed by the organic solvent (oil), which are coated by surfactant molecules and a water layer in which the enzyme can be hosted.

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Impact of hydroxypropylmethylcellulose on whey protein concentrate spread film at the air–water interface: Structural and surface dilatational characteristics

Cited by 17 publications

References 45 publications

The impact of HPMC structure in the modulation of in vitro lipolysis: The role of bile salts

The impact of HPMC structure in the modulation of in vitro lipolysis: The role of bile salts

Composition, morphology, interfacial rheology and emulsifying ability of soy hull polysaccharides extracted with ammonium oxalate and sodium citrate as extractants

Structural Study of (Hydroxypropyl)Methyl Cellulose Microemulsion-Based Gels Used for Biocompatible Encapsulations

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