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Analysis of the Phenol and Flavonoid Content from Basil Leaves (Ocimum Americanum L) Extract Using Pulsed Electric Field (PEF) Pre-Treatment CIGR Journal
Hendrawan, Yusuf; Sabrinauly, Sabrinauly; Hawa, La Choviya; Argo, Bambang Dwi; Rachmawati, Muchnuria.
Basil leaves (Ocimum Americanum Linn) are commonly known to contain phenol and flavonoid compounds which can act as antimicrobial and antioxidants. In general, the bioactive compound can be obtained by conventional extraction method, maceration. To increase the amount of bioactive compounds which can be extracted, it is necessary to conduct pre-treatment using Pulsed Electric Field (PEF). PEF has an advantage in increasing the compound transfer contained in cells to be extracted from the plant tissues via electroporation mechanisms, without causing significant temperature changes. This study aims to determine the effect of electric field strength variations (2, 3, and 4 kV/cm) and duration of pre-treatment (1, 2, and 3 minutes) to total phenol and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agricultural Engineering Basil leaves; Phenol; Flavonoid; Pulsed electric field.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5240
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Optimization of the pulsed electric field -assisted extraction of functional compounds from Nepeta binaludensis CIGR Journal
Azimi Mahalleh, Afsaneh; Sharayei, Parvin; Mortazavi, Seyed Ali; Azarpazhooh, Elham; Niazmand, Razieh.
Pulsed electric field (PEF) treatment was used for extracting effective components from Nepeta (Nepeta binaludensis Jamzad). A response surface method was used to investigate the effects of independent process variables (voltage of pulsed electric field (VPEF): 2, 4 and 6 KV/cm and number of pulsed electric field (NPEF): 20, 40 and 60 n) on the yield (Y) and antioxidant characteristics: total phenolic compounds (TPC), 1,1- diphenyl -2- picrylhydrazyl free radical scavenging (DPPHsc), ferric reducing-antioxidant power (FRAP), half  maximal of radical-scavenging activity (IC50) of Nepeta extract (aerial parts). According to Derringer’s desired function approach, the optimal conditions based on both individual and combinations of all process variables were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phenolic compounds; Nepeta binaludensis; Response Surface Methodology; Pulsed electric field; Antimicrobial activity.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5391
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Optimization of the pulsed electric field -assisted extraction of functional compounds from Nepeta binaludensis CIGR Journal
Azimi Mahalleh, Afsaneh; Sharayei, Parvin; Mortazavi, Seyed Ali; Azarpazhooh, Elham; Niazmand, Razieh.
Pulsed electric field (PEF) treatment was used for extracting effective components from Nepeta (Nepeta binaludensis Jamzad). A response surface method was used to investigate the effects of independent process variables (voltage of pulsed electric field (VPEF): 2, 4 and 6 KV/cm and number of pulsed electric field (NPEF): 20, 40 and 60 n) on the yield (Y) and antioxidant characteristics: total phenolic compounds (TPC), 1,1- diphenyl -2- picrylhydrazyl free radical scavenging (DPPHsc), ferric reducing-antioxidant power (FRAP), half  maximal of radical-scavenging activity (IC50) of Nepeta extract (aerial parts). According to Derringer’s desired function approach, the optimal conditions based on both individual and combinations of all process variables were...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Phenolic compounds; Nepeta binaludensis; Response Surface Methodology; Pulsed electric field; Antimicrobial activity.
Ano: 2019 URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5391
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