Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Improved Extraction of High Value-Added Polyphenols from Pomegranate Peels by Solid-State Fermentation

Jose Juan Buenrostro-Figueroa
ORCID logo ,
Guadalupe Virginia Nevárez-Moorillón
ORCID logo ,
Mónica Lizeth Chavez-González
,
Leonardo Sepúlveda
ORCID logo ,
Juan Alberto Ascacio-Valdés
ORCID logo ,
Cristóbal Noé Aguilar
ORCID logo ,
Ruth Pedroza-Islas
,
Sergio Huerta-Ochoa
,
Lilia Arely Prado-Barragán
* ORCID logo
Version 1 : Received: 5 May 2023 / Approved: 6 May 2023 / Online: 6 May 2023 (09:38:20 CEST)

A peer-reviewed article of this Preprint also exists.

Buenrostro-Figueroa, J.J.; Nevárez-Moorillón, G.V.; Chávez-González, M.L.; Sepúlveda, L.; Ascacio-Valdés, J.A.; Aguilar, C.N.; Pedroza-Islas, R.; Huerta-Ochoa, S.; Arely Prado-Barragán, L. Improved Extraction of High Value-Added Polyphenols from Pomegranate Peel by Solid-State Fermentation. Fermentation 2023, 9, 530. Buenrostro-Figueroa, J.J.; Nevárez-Moorillón, G.V.; Chávez-González, M.L.; Sepúlveda, L.; Ascacio-Valdés, J.A.; Aguilar, C.N.; Pedroza-Islas, R.; Huerta-Ochoa, S.; Arely Prado-Barragán, L. Improved Extraction of High Value-Added Polyphenols from Pomegranate Peel by Solid-State Fermentation. Fermentation 2023, 9, 530.

Abstract

Abstract: Pomegranate peels are important source of polyphenols with remarkable interest in food, pharmaceutical and cosmetic industry. An improved extraction of total polyphenolic com-pounds (TPC) from pomegranate peels by Solid-State Fermentation (SSF) was achieved. A Box Hunter & Hunter (BHH) followed by Central Composite Design (CCD) were performed to assess the effect of the process variables on TPC release. The statistic designs indicate that the best TPC extraction (234.85 mg GAE/gdm) by means of SSF occurs, at 42°C, 50 % moisture, pH 5.0, mineral solution (g/L): NaNO3 (3.83), KH2PO4 (1.52), MgSO4 (4.66) and KCl (1.52) at 36 h. At the best fer-mentation conditions, TPC (248.78±1.24 mgGAE/gdm) increased 5.96-fold than values previously reported and antioxidant activity [AA] increased 5.81-fold than the value obtained before the SSF optimization. High-valued citric acid, α and β punicalin, α and β punicalagin, punigluconin, gal-loyl-HHDP hexoside and ellagic acid molecules were identified. The increased extraction of TPC by SSF provides a suitable alternative for pomegranate peels valorization through the re-covery of molecules with high added value with potential use in food, pharmacy and cosmetic industries; a diversification in the use of food agroindustry by-products is obtained as approach to the circular economy model through biotechnological processes.

Keywords

pomegranate peels; polyphenols improved extraction; high value-added molecules identification; solid-state fermentation

Subject

Biology and Life Sciences, Biology and Biotechnology

Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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