Effect of ultrasound treatment on steady and dynamic shear properties of glucomannan based salep dispersions: Optimization of amplitude level, sonication time and temperature using response surface methodology

Karaman, Safa; Yılmaz, Mustafa Tahsin; Ertugay, Mustafa Fatih; Başlar, Mehmet; Kayacıer, Ahmed

doi:10.1016/j.ultsonch.2011.12.009

Cited by 41 publications

(14 citation statements)

References 41 publications

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“…As can be clearly observed, we developed a polysaccharide ultrasonic assisted extraction process that the ultrasonic treatment facilitates the release of polysaccharides from inside the cells to the exterior solvent. However, at high vibration amplitude, a great number of cavitation bubbles are generated in the solution, which may dampen sound energy passing through the liquid (Karaman et al ., ). The present study indicated that ultrasound waves give a larger yield only at 40 W.…”

Section: Resultsmentioning

confidence: 97%

Optimization Extraction ofCrassostrea gigasPolysaccharides and its Antioxidant Activity and Hepatoprotective Against BCG-LPS-Induced Hepatic Injury in Mice

Zhang

et al. 2016

Journal of Food Processing and Preservation

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A active oyster polysaccharide (AOP) was extracted from oyster tissues by ultrasonic assisted extraction. The optimal extraction conditions were 20 min at pH 8, 60C with 40 W and water to solid ratio of 10, and with this method 42.73 6 2.34 (mg/g) of AOP yield was obtained. Additionally, the antioxidant and hepatoprotective activities of AOP were investigated. The results showed that AOP exhibited strong antioxidant effects, which included scavenging activities against DPPH radicals and hydrogen oxide with IC 50 values of 3.08 and 11.18 mg/mL, respectively. For hepatoprotective activities against BCG-LPS-induced hepatic injury in mice, AOP was shown to effectively improved the liver index, spleen index and thymus index, reduced the serum levels of ALT and AST. Treatment with AOP significantly increased hepatic SOD and GSH-Px activity, GSH. The levels of TNF-a and IL-1b in BCG/LPS-induced mice liver homogenates were decreased markedly by treatment with AOP. PRACTICAL APPLICATIONSThis work provides an alternative way for aquatic products processing enterprises to evaluate oyster polysaccharide quality and bioactivity. AOP have been shown to have potential for nutritional or pharmaceutical applications. AOP may have hepatoprotective effects against BCG-LPS -induced liver injury, which was related to its antioxidative and immunomodulatory effects.

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Section: Resultsmentioning

confidence: 97%

Optimization Extraction ofCrassostrea gigasPolysaccharides and its Antioxidant Activity and Hepatoprotective Against BCG-LPS-Induced Hepatic Injury in Mice

Zhang

et al. 2016

Journal of Food Processing and Preservation

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“…Ultrasound treatment for long duration expedite depolymerization process extremely. These resulted in weakening of the interaction between the polymer molecules and decreasing viscosity by destruction of the gel network subsequently (Azizi & Farahnaky, ; Jambrak et al, ; Karaman et al, ). Also, hardness values are shown in Table indicated that the power of treatment has less effect on it, in comparison with the time of sonication.…”

Section: Resultsmentioning

confidence: 99%

“…All these techniques have confirmed the process divided into several stages. decreasing viscosity by destruction of the gel network subsequently (Azizi & Farahnaky, 2013;Jambrak et al, 2010;Karaman et al, 2012).…”

Section: Effect Of Ultrasound On the Gel Texturementioning

confidence: 99%

“…Bubble collapse leads to an extreme pressure (1,000 atm) and a temperature (5,000 K) in a cavitation zone which leads to intense mechanical and chemical reactions in a target medium (Soria & Villamiel, ). In addition, cavitation has influence on structural and functional properties of polymers which involves effective polymers controlled degradation (Karaman, Yilmaz, Ertugay, Baslar, & Kayacier, ; Price, ). Recently, many research works have been focused on ultrasonic depolymerization include dextran (Lorimer, Mason, Cuthbert, & Brookfield, ), chitosan (Chen et al, ), xyloglucan (Vodeničarová, Dřímalová, Hromádková, Malovíková, & Ebringerová, ), pectin (Zhang et al, ), and different kinds of starches (Baxter, Zivanovic, & Weiss, ; Cheng, Chen, Liu, Ye, & Ke, ; Chung, Moon, Kim, & Chun, ; Jambrak et al, ; Jambrak, Lelas, Mason, Krešić, & Badanjak, ; Price, ).…”

Section: Introductionmentioning

confidence: 99%

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Structural changes and stress relaxation behavior of κ‐carrageenan cold‐processed gels: Effects of ultrasonication time and power

Zendeboodi¹,

Farahnaky

Gholian

2019

Journal of Texture Studies

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Ultrasound has been used for cold gelation of κ‐carrageenan hydrocolloid. In this work, the effect of ultrasound conditions such as power (50–150 W) and time (20–240 s) of sonication has been investigated. The application of ultrasound to hydrocolloid dispersion caused an increase in water solubility. The texture profile analysis test was used in order to evaluate the mechanical properties of gels. Textural parameters of κ‐carrageenan gels, enhanced with increasing sonication time and power up to a certain level (usually 2.5 min) and longer sonication times had negative effects. In addition, intrinsic viscosities of sonicated specimens were measured to investigate the molecular characteristics of all samples. An increase in the process time and power reduced the intrinsic viscosity. The microstructural observation by scanning electron microscope determined that applying power ultrasound on κ‐carrageenan dispersions influenced the formation of gel networks significantly.

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“…The interactions between the polymer molecules were weakened, and this destruction of the polymer network resulted in a decrease of viscosity. 28 …”

mentioning

confidence: 99%

Comparison of process parameter optimization using different designs in nanoemulsion-based formulation for transdermal delivery of fullerene

Ngan¹,

Basri²,

Lye³

et al. 2014

IJN

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This research aims to formulate and to optimize a nanoemulsion-based formulation containing fullerene, an antioxidant, stabilized by a low amount of mixed surfactants using high shear and the ultrasonic emulsification method for transdermal delivery. Process parameters optimization of fullerene nanoemulsions was done by employing response surface methodology, which involved statistical multivariate analysis. Optimization of independent variables was investigated using experimental design based on Box–Behnken design and central composite rotatable design. An investigation on the effect of the homogenization rate (4,000–5,000 rpm), sonication amplitude (20%–60%), and sonication time (30–150 seconds) on the particle size, ζ-potential, and viscosity of the colloidal systems was conducted. Under the optimum conditions, the central composite rotatable design model suggested the response variables for particle size, ζ-potential, and viscosity of the fullerene nanoemulsion were 152.5 nm, −52.6 mV, and 44.6 pascal seconds, respectively. In contrast, the Box–Behnken design model proposed that preparation under the optimum condition would produce nanoemulsion with particle size, ζ-potential, and viscosity of 148.5 nm, −55.2 mV, and 39.9 pascal seconds, respectively. The suggested process parameters to obtain optimum formulation by both models yielded actual response values similar to the predicted values with residual standard error of <2%. The optimum formulation showed more elastic and solid-like characteristics due to the existence of a large linear viscoelastic region.

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Effect of ultrasound treatment on steady and dynamic shear properties of glucomannan based salep dispersions: Optimization of amplitude level, sonication time and temperature using response surface methodology

Cited by 41 publications

References 41 publications

Optimization Extraction ofCrassostrea gigasPolysaccharides and its Antioxidant Activity and Hepatoprotective Against BCG-LPS-Induced Hepatic Injury in Mice

Optimization Extraction ofCrassostrea gigasPolysaccharides and its Antioxidant Activity and Hepatoprotective Against BCG-LPS-Induced Hepatic Injury in Mice

Structural changes and stress relaxation behavior of κ‐carrageenan cold‐processed gels: Effects of ultrasonication time and power

Comparison of process parameter optimization using different designs in nanoemulsion-based formulation for transdermal delivery of fullerene

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