Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

Valorization of Prickly Pear Peel Residues (Opuntia ficus-indica) Using of Solid-State Fermentation to Accumulation of Tannins

Sergio Arturo Coronado Contreras
,
Xochitl Ruelas Chacón
ORCID logo ,
Yadira Karina Reyes Acosta
,
Miriam Desirée Dávila Medina
,
Juan A. Ascacio Valdés
ORCID logo ,
Leonardo Sepúlveda
* ORCID logo
Version 1 : Received: 13 September 2023 / Approved: 13 September 2023 / Online: 14 September 2023 (04:52:53 CEST)

A peer-reviewed article of this Preprint also exists.

Coronado-Contreras, A.; Ruelas-Chacón, X.; Reyes-Acosta, Y.K.; Dávila-Medina, M.D.; Ascacio-Valdés, J.A.; Sepúlveda, L. Valorization of Prickly Pear Peel Residues (Opuntia ficus-indica) Using Solid-State Fermentation. Foods 2023, 12, 4213. Coronado-Contreras, A.; Ruelas-Chacón, X.; Reyes-Acosta, Y.K.; Dávila-Medina, M.D.; Ascacio-Valdés, J.A.; Sepúlveda, L. Valorization of Prickly Pear Peel Residues (Opuntia ficus-indica) Using Solid-State Fermentation. Foods 2023, 12, 4213.

Abstract

The Opuntia ficus-indica (OFI) prickly pear peel, is a residue product and was used as a substrate in solid-state fermentation (SSF) to obtain bioactive compounds of interest due to its antimicrobial and antioxidant activity. A Box Hunter & Hunter design to evaluate the independent factors was used. These factors were temperature (°C), inoculum (spores/g), humidity (%), pH, NaNO3 (g/L), MgSO4 (g/L), KCl (g/L) and KH2PO4 (g/L). The response factors were hydrolyzable and condensed tannins amount. In addition, the fermentation extracts the antioxidant and antimicrobial activity were evaluated. The results showed that the humidity (%), inoculum (spores/g) and temperature (°C) affect the release of hydrolyzable and condensed tannins. The treatments 13 and 16 were the best to accumulate condensed (43 mg/g) and hydrolyzable tannins (3.8 mg/g) respectively. Besides, the fermented extracts showed a higher antioxidant activity compared than the unfermented peel extracts, as well as a high inhibition versus E. coli, Alternaria sp. and Botrytis spp. The use of the fermentation process is a good alternative for the recovery of waste and the accumulation of bioactive molecules with potential industrial application.

Keywords

hydrolyzable tannins; condensed tannins; Aspergillus sp.; Box Hunter & Hunter design; biological activities

Subject

Biology and Life Sciences, Food Science and Technology

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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