Kinetic modeling of ultrasonic‐assisted extraction of punicalagin from pomegranate peel,Journal of Food Process Engineering

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Kinetic modeling of ultrasonic‐assisted extraction of punicalagin from pomegranate peel
Journal of Food Process Engineering ( IF 2.7 ) Pub Date : 2020-09-13 , DOI: 10.1111/jfpe.13533
Madhulekha Rakshit ₁ , Prem P. Srivastav ₁ , Kanishka Bhunia ₁

Affiliation

Ultrasonic‐assisted extraction of punicalagin from pomegranate peel was investigated. The influence of individual parameters, namely, solvent volume (20–60 mL), amplitude (30–70%), and duty cycle (60–100%) on punicalagin extraction was studied. The optimal condition of extraction was found to be: 40 mL solvent volume, 60% amplitude, and 90% duty cycle. Different kinetic models such as Peleg's model, first order kinetics, power law model, and mass transfer model were used to mathematically describe the extraction mechanism. Initial extraction rate, equilibrium punicalagin concentration, effective diffusivity, model constants, and diffusional exponent have been calculated using these models. The study revealed that first order kinetics ( $urn:x-wiley:01458876:media:jfpe13533:jfpe13533-math-0001$ ) best fitted the experimental data. Fifteen other hydrolysable tannins were identified using liquid chromatography mass spectrometry in the polyphenolic extract obtained under optimized condition.

中文翻译：

超声波辅助石榴皮中提取石榴皮的动力学模型

研究了超声波辅助从石榴皮中提取punicalagin的方法。研究了各个参数对punicalagin提取的影响，即溶剂量（20–60 mL），幅度（30–70％）和占空比（60–100％）。发现萃取的最佳条件是：40 mL溶剂体积，60％振幅和90％占空比。使用不同的动力学模型（例如Peleg模型，一阶动力学，幂律模型和质量传递模型）来数学描述萃取机理。使用这些模型计算出了初始提取率，平衡punicalagin浓度，有效扩散率，模型常数和扩散指数。研究表明，一阶动力学（ $缸：x-wiley：01458876：media：jfpe13533：jfpe13533-math-0001$ ）最适合实验数据。使用液相色谱质谱法在优化条件下获得的多酚提取物中鉴定出另外15种可水解单宁。

更新日期：2020-11-09

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