NDLI: Recovery of Bioactive Compounds from Pomegranate (Punica granatum L.) Peel Using Pressurized Liquid Extraction

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Recovery of Bioactive Compounds from Pomegranate (Punica granatum L.) Peel Using Pressurized Liquid Extraction

Content Provider	MDPI
Author	Paula, García Jes, ús Lozano-Sánchez Francisco, Leyva-Jiménez Fredes, Carolina Cea, Inés Robert, Paz Vergara, Cristina Jimenez, Paula
Copyright Year	2021
Description	Pressurized liquid extraction (PLE) is a clean and environmentally friendly alternative for the recovery of bioactive compounds from fruit by-products. Herein we focused on PLE for the extraction of bioactive compounds from pomegranate peel using a combination of pressurized water and ethanol. The main aim was to determine the optimal PLE conditions, i.e., ethanol percentage and process temperature, to obtain a pomegranate peel extract (PPE) with maximum total phenolic content (TPC), punicalagin content, and antimicrobial activity (AMA). The experimental design was conducted using a central composite design with axial points. Response surface methodology was applied to optimize the response variables using the desirability function. Multiple response optimization indicated a process temperature of 200 °C and ethanol of 77% as optimal conditions. The TPC and the punicalagin content of PPE-PLE obtained under optimal conditions were 164.3 ± 10.7 mg GAE/g DW and 17 ± 3.6 mg/g DW, respectively. Our findings support the efficacy of PLE on TPC recovery but not in punicalagin recovery. The AMA against S. aureus was 14 mm. The efficacy of PPE-PLE in food applications must continue to be studied in order to achieve adequate information on its potential for developing new food additives.
Starting Page	203
e-ISSN	23048158
DOI	10.3390/foods10020203
Journal	Foods
Issue Number	2
Volume Number	10
Language	English
Publisher	MDPI
Publisher Date	2021-01-20
Access Restriction	Open
Subject Keyword	Foods Paper and Wood Pomegranate By-products Pomegranate Peel Extract Polyphenols Punicalagin Antioxidant Rsm
Content Type	Text
Resource Type	Article

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