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| 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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| Azarpazhooh, Elham; Sharayei, Parvin. |
| There is a growing demand for fresh cut, value-added and ready-to-use food in households, as well as for widespread use in retail, food services and the various food industries. Amongst vegetables, onions have many medicinal properties and can lead to health.This study evaluated the effect of disinfection methods including; T1: Nisin & Citric acid (N+C), T2: Sodium hypochlorite (SH+S+C), T3: Calcium chloride+ Ascorbic acid+ Citric Acid (CC+AS+CA);T4: Control,during 21 days storage at 4°C on onion pure (OP). Each week, pH, soluble solids, acidity, weight loss, total phenolic compounds antioxidant activity and microbial tests (total microbial count, total molds and yeasts) were performed on the samples. Statistical analysis of the data by way of a... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6729 |
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| Azarpazhooh, Elham; Sharayei, Parvin; Ramaswamy, Hosahalli S.. |
| This study was focused on investigating the use of pulsed ultrasound-assisted osmotic dehydration (UAOD) for enhancing the infusion of phenolic compounds extracted from grape pomace (GPx) to Aloe vera (Aloe barbadensis Miller,) gel (AVG) using response surface methodology (RSM) and produce a dehydrated product with high antioxidant content. Fresh AVG were initially immersed in a sucrose solution of 50° B with three levels of GPx (10, 20, and 30 v/v) and subjected to pulsed ultrasound (US) treatment with a probe of 2 cm diameter, two levels of ultrasound amplitude (UA) (50 and 100%), and three ultrasound treatment times (UT) (30, 135 and 210 min). The pulsed on and off times were set at 15 and 1 min, respectively. A multiple regression analysis was carried... |
| Tipo: Info:eu-repo/semantics/article |
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| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5602 |
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| 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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