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Optimization of the Vacuum Microwave Assisted Extraction of the Natural Polyphenols and Flavonoids from the Raw Solid Waste of the Pomegranate Juice Producing Industry at Industrial Scale.
Molecules. 2021 Feb 16; 26(4)M

Abstract

Pomegranate pomace (PP) is the solid waste produced in bulk by the pomegranate juice industry which is rich in polyphenols and flavonoids that can replace the hazardous chemical antioxidants/antimicrobials currently used in the agro-food and cosmetics sectors. In the present work, the vacuum microwave assisted extraction (VMAE) of natural antioxidants from raw pomegranate pomace was investigated and successfully optimized at an industrial scale. For the optimization of PP VMAE a novel, highly accurate response surface methodology (RSM) based on a comprehensive multi-point historical design was employed. The optimization showed that the maximum recovery of PP total polyphenols as well as total PP flavonoids were obtained at microwave power = 4961.07 W, water to pomace ratio = 29.9, extraction time = 119.53 min and microwave power = 4147.76 W, water to pomace ratio = 19.32, extraction time = 63.32 min respectively. Moreover, the optimal VMAE conditions on economic grounds were determined to be: microwave power = 2048.62 W, water to pomace ratio = 23.11, extraction time = 15.04 min and microwave power = 4008.62 W, water to pomace ratio = 18.08, extraction time = 15.29 min for PP total polyphenols and PP total flavonoids respectively. The main conclusion of this study is that the VMAE extraction can be successfully used at industrial scale to produce, in economic manner, high added value natural extracts from PP pomace.

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Authors+Show Affiliations

Petrotos K
Department of Agrotechnology, School of Agricultural Sciences, Geopolis Campus, University of Thessaly, Periferiaki Odos Larisas Trikalon, 41500 Larisa, Greece.
Giavasis I
Department of Food Science and Human Nutrition, School of Agricultural Sciences, Karditsa Campus, University of Thessaly, Terma Odou N. Temponera, 43100 Karditsa, Greece.
Gerasopoulos K
Department of Agrotechnology, School of Agricultural Sciences, Geopolis Campus, University of Thessaly, Periferiaki Odos Larisas Trikalon, 41500 Larisa, Greece.
Mitsagga C
Department of Food Science and Human Nutrition, School of Agricultural Sciences, Karditsa Campus, University of Thessaly, Terma Odou N. Temponera, 43100 Karditsa, Greece.
Papaioannou C
Department of Agrotechnology, School of Agricultural Sciences, Geopolis Campus, University of Thessaly, Periferiaki Odos Larisas Trikalon, 41500 Larisa, Greece.
Gkoutsidis P
Department of Agrotechnology, School of Agricultural Sciences, Geopolis Campus, University of Thessaly, Periferiaki Odos Larisas Trikalon, 41500 Larisa, Greece.

MeSH

Analysis of VarianceFlavonoidsFruit and Vegetable JuicesIndustrial WasteMicrowavesModels, TheoreticalPlant ExtractsPolyphenolsPomegranateSolid WasteStatistics as TopicVacuum

Pub Type(s)

Journal Article

Language

eng

PubMed ID

33669172

Citation

Petrotos, Konstantinos, et al. "Optimization of the Vacuum Microwave Assisted Extraction of the Natural Polyphenols and Flavonoids From the Raw Solid Waste of the Pomegranate Juice Producing Industry at Industrial Scale." Molecules (Basel, Switzerland), vol. 26, no. 4, 2021.
Petrotos K, Giavasis I, Gerasopoulos K, et al. Optimization of the Vacuum Microwave Assisted Extraction of the Natural Polyphenols and Flavonoids from the Raw Solid Waste of the Pomegranate Juice Producing Industry at Industrial Scale. Molecules. 2021;26(4).
Petrotos, K., Giavasis, I., Gerasopoulos, K., Mitsagga, C., Papaioannou, C., & Gkoutsidis, P. (2021). Optimization of the Vacuum Microwave Assisted Extraction of the Natural Polyphenols and Flavonoids from the Raw Solid Waste of the Pomegranate Juice Producing Industry at Industrial Scale. Molecules (Basel, Switzerland), 26(4). https://doi.org/10.3390/molecules26041033
Petrotos K, et al. Optimization of the Vacuum Microwave Assisted Extraction of the Natural Polyphenols and Flavonoids From the Raw Solid Waste of the Pomegranate Juice Producing Industry at Industrial Scale. Molecules. 2021 Feb 16;26(4) PubMed PMID: 33669172.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Optimization of the Vacuum Microwave Assisted Extraction of the Natural Polyphenols and Flavonoids from the Raw Solid Waste of the Pomegranate Juice Producing Industry at Industrial Scale. AU - Petrotos,Konstantinos, AU - Giavasis,Ioannis, AU - Gerasopoulos,Konstantinos, AU - Mitsagga,Chrysanthi, AU - Papaioannou,Chryssoula, AU - Gkoutsidis,Paschalis, Y1 - 2021/02/16/ PY - 2021/01/21/received PY - 2021/02/07/revised PY - 2021/02/12/accepted PY - 2021/3/6/entrez PY - 2021/3/7/pubmed PY - 2021/4/10/medline KW - flavonoids KW - historical data design KW - industrial scale optimization KW - modified response surface optimization KW - polyphenols KW - pomegranate pomace KW - vacuum microwave assisted extraction (VMAE) JF - Molecules (Basel, Switzerland) JO - Molecules VL - 26 IS - 4 N2 - Pomegranate pomace (PP) is the solid waste produced in bulk by the pomegranate juice industry which is rich in polyphenols and flavonoids that can replace the hazardous chemical antioxidants/antimicrobials currently used in the agro-food and cosmetics sectors. In the present work, the vacuum microwave assisted extraction (VMAE) of natural antioxidants from raw pomegranate pomace was investigated and successfully optimized at an industrial scale. For the optimization of PP VMAE a novel, highly accurate response surface methodology (RSM) based on a comprehensive multi-point historical design was employed. The optimization showed that the maximum recovery of PP total polyphenols as well as total PP flavonoids were obtained at microwave power = 4961.07 W, water to pomace ratio = 29.9, extraction time = 119.53 min and microwave power = 4147.76 W, water to pomace ratio = 19.32, extraction time = 63.32 min respectively. Moreover, the optimal VMAE conditions on economic grounds were determined to be: microwave power = 2048.62 W, water to pomace ratio = 23.11, extraction time = 15.04 min and microwave power = 4008.62 W, water to pomace ratio = 18.08, extraction time = 15.29 min for PP total polyphenols and PP total flavonoids respectively. The main conclusion of this study is that the VMAE extraction can be successfully used at industrial scale to produce, in economic manner, high added value natural extracts from PP pomace. SN - 1420-3049 UR - https://www.unboundmedicine.com/medline/citation/33669172/Optimization_of_the_Vacuum_Microwave_Assisted_Extraction_of_the_Natural_Polyphenols_and_Flavonoids_from_the_Raw_Solid_Waste_of_the_Pomegranate_Juice_Producing_Industry_at_Industrial_Scale_ DB - PRIME DP - Unbound Medicine ER -