Impact of protein self-assemblages on foam properties

Nicorescu, I.; Riaublanc, Alain; Loisel, Catherine; Vial, Christophe; Djelveh, Gholamreza; Cuvelier, Gérard; Legrand, Jack

doi:10.1016/j.foodres.2009.07.028

Cited by 22 publications

(13 citation statements)

References 23 publications

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“…Besides, as reported earlier, during processing the thermal treatment can cause the denaturation of such type of compounds and result in the conformational changes. These changes might affect the solubility and stability of compound along with their long term storage [13,14]. Hence, the biofield treatment might be used as an effective measure to increase the thermal stability, thereby increasing the stability, efficacy and shelf-life of these compounds.…”

Section: Tga/dtg Analysismentioning

confidence: 99%

“…Besides, during processing such kind of products are subjected to various thermal treatments to inactivate the antinutritional factors, remove allergens, and to obtain the required solubility and texture [12]. However, they may face the problem of some conformational changes due to their thermal denaturation during heating that might affect their solubility, stability, and shelf-life [13,14]. Therefore, it creates the need for some alternative strategies that may help to improve the stability related issues of this compound in a cost-effective manner.…”

Section: Introductionmentioning

confidence: 99%

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Physical, Spectroscopic and Thermal Characterization of Biofield Treated Fish Peptone

Trivedi¹

2015

EJB

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Abstract:The by-products of industrially processed fish are enzymatically converted into fish protein isolates and hydrolysates having a wide biological activity and nutritional properties. However, the heat processing may cause their thermal denaturation thereby causing the conformational changes in them. The present study utilized the strategy of biofield energy treatment and analysed its impact on various properties of the fish peptone as compared to the untreated (control) sample. The fish peptone sample was divided into two parts; one part was subjected to Mr. Trivedi's biofield treatment, coded as the treated sample and another part was coded as the control. The impact of biofield treatment was analysed through various analytical techniques and results were compared with the control sample. The particle size data revealed 4.61% increase in the average particle size (d 50 ) along with 2.66% reduction in the surface area of the treated sample as compared to the control. The X-ray diffraction studies revealed the amorphous nature of the fish peptone sample; however no alteration was found in the diffractogram of the treated sample with respect to the control. The Fourier transform infrared studies showed the alterations in the frequency of peaks corresponding to N-H, C-H, C=O, C-N, and C-OH, functional groups in the treated sample as compared to the control. The differential scanning calorimetry data revealed the increase in transition enthalpy (∆H) from -71.14 J/g (control) to -105.32 J/g in the treated sample. The thermal gravimetric analysis data showed the increase in maximum thermal degradation temperature (T max ) from 213.31°C (control) to 221.38°C along with a reduction in the percent weight loss of the treated sample during the thermal degradation event. These data revealed the increase in thermal stability of the treated fish peptone and suggested that the biofield energy treatment may be used to improve the thermal stability of the heat sensitive compounds.

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Section: Tga/dtg Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Physical, Spectroscopic and Thermal Characterization of Biofield Treated Fish Peptone

Trivedi¹

2015

EJB

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“…With addition of salt, particle average size of WPI aggregates increased from 180 to 327 nm associated with a morphological transformation (compact/spherical to fibrillar aggregates). In a series of articles, (Nicorescu et al, 2008a, b;Nicorescu et al, 2009) reported the effect of dynamic heat treatment (100°C) using a tubular heat exchanger of a WPI solution (20 g L À1 ) at pH 7 to investigate denaturation/aggregation and foaming properties, with and without NaCl addition (100 mM). It was shown that not only denaturation (10%) and size (less than 10 lm) of aggregates was reduced by the presence of NaCl, but also the aggregates (diameter about 200 nm) obtained in the presence of 0.1 M NaCl played a key role on the stabilization of gas-liquid interfaces.…”

Section: Effect Of Salt and Other Microenvironments On Whey Proteins mentioning

confidence: 99%

“…NaCl addition after a given coarsening time led to significantly smaller air bubble diameters for foam stabilized with WPI soluble aggregates if compared to aggregates generated without salts. Different foaming properties (overrun, foam stability and texture) of WPI (2% w/v) were studied by heating at 100°C with and without NaCl addition (0-100 mM) (Nicorescu et al, 2008b;Nicorescu et al, 2009). The aggregates (about 200 nm diameter) obtained in the presence of salt and heat treatment led to smaller and more homogeneous air bubble size distributions in foams, with improved texture and increased stability against drainage.…”

Section: Foaming Propertiesmentioning

confidence: 99%

From high milk protein powders to the rehydrated dispersions in variable ionic environments: A review

Hussain

Gaiani

Scher

2012

Journal of Food Engineering

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“…[12][13][14][15][16] FPIA has a high detection throughput, and is therefore well-suited for estimating particle size in situ in turbid solutions such as suspensions and emulsions. Additionally, it can provide an assessment of not only particle number, but also particle size and shape by generating images of samples.…”

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confidence: 99%

Particle Condition Change in Emulsion Admixture Evaluated by <i>in Situ</i> Flow Particle Imaging Analysis

Ohkawa

Uchino

Sasakura³

et al. 2013

CHEMICAL & PHARMACEUTICAL BULLETIN

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We evaluated the particle state change in emulsion admixtures using in situ flow particle imaging analysis (FPIA ) were prepared and the change in emulsion particle state was analyzed using FPIA under in situ condition. The effect of storage on pH change and the chemical stability of flurbiprofen axetil were also investigated. In Ropion ® , various particle images (mean diameter: 2.4 µm) were obtained. From our analysis of changes in scattergrams and particle images, changing behaviors of emulsion particles as a function of storage time depended on the systems of admixture samples. In Ropion ® /NS and Ropion ® /Gaster ® /NS systems, mean particle size and particle number increased with lengthening storage time; however, these values were dramatically increased beyond 6 h in the Ropion ® /Primperan ® /NS system, corresponding to a decrease in measured pH. The decomposition of flurbiprofen axetil due to incompatibility was not observed in all systems. Detailed information on the change in emulsion particle state was obtained using FPIA, indicating that this method is useful to evaluate state changes in emulsion admixtures under in situ condition.Key words flow particle imaging analysis; incompatibility; emulsion; Ropion ® intravenous; flurbiprofen axetil Parenteral injections have the advantages of both immediate systemic drug availability and rapid onset of action. When an injectable drug is administered, it is usually prepared at an appropriate dose for a specific patient. The preparation process (dilution and dissolution of a drug in an infusional diluent) can result in physicochemical incompatibility and affect the stability of the drug.

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Impact of protein self-assemblages on foam properties

Cited by 22 publications

References 23 publications

Physical, Spectroscopic and Thermal Characterization of Biofield Treated Fish Peptone

Physical, Spectroscopic and Thermal Characterization of Biofield Treated Fish Peptone

From high milk protein powders to the rehydrated dispersions in variable ionic environments: A review

Particle Condition Change in Emulsion Admixture Evaluated by <i>in Situ</i> Flow Particle Imaging Analysis

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