Bio-Recycling Hazelnut Shells to Improve Antioxidant Properties of Lentinus tigrinus Sporophore

Anthea Desiderio, Mariana C. Pedrosa, Sandrina A. Heleno (), Marcio Carocho, Daniele B. Rodrigues, Simone Buratti, Irene Soffientini, Daniela Ratto, Elena Savino and Paola Rossi
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Anthea Desiderio: Department of Earth and Environmental Sciences (DSTA), University of Pavia, 27100 Pavia, Italy
Mariana C. Pedrosa: CIMO—Centro de Invesigação de Montanha, LA SusTEC, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
Sandrina A. Heleno: CIMO—Centro de Invesigação de Montanha, LA SusTEC, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
Marcio Carocho: CIMO—Centro de Invesigação de Montanha, LA SusTEC, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
Daniele B. Rodrigues: CIMO—Centro de Invesigação de Montanha, LA SusTEC, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 5300-253 Bragança, Portugal
Simone Buratti: Department of Earth and Environmental Sciences (DSTA), University of Pavia, 27100 Pavia, Italy
Irene Soffientini: Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy
Daniela Ratto: Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy
Elena Savino: Department of Earth and Environmental Sciences (DSTA), University of Pavia, 27100 Pavia, Italy
Paola Rossi: Department of Biology and Biotechnology “L. Spallanzani”, University of Pavia, 27100 Pavia, Italy

Agriculture, 2025, vol. 15, issue 2, 1-20

Abstract: Lentinus tigrinus is a wood-decay fungus known for its nutritional, culinary, and medicinal benefits. It contains bioactive compounds like polyphenols, terpenes, and flavonoids that exhibit antioxidant, anti-microbial, and anti-inflammatory effects. These natural antioxidants are increasingly recognized for their potential to prevent oxidative damage linked to aging and chronic diseases. This study investigates the antioxidant activity of hydroalcoholic extracts obtained from L. tigrinus sporophores cultivated on hazelnut shells (Lt1_HS), a waste material rich in phenolic compounds, and sporophores cultivated on sawdust (Lt1_S). Bioactivity tests, including DPPH, TBARS, MTT, and DCFH-DA assays, were performed to assess the hydroalcoholic extracts’ efficiency. The results showed that all the extracts contained various bioactive compounds, primarily polyphenols. Notably, the caffeoylquinic acids present in HS and Lt1_HS are linked to anti-peroxidant effects. Biological analyses demonstrated that the Lt1_HS extract has higher anti-peroxidant activity (IC 50 0.77 ± 0.01 mg/mL) compared to Lt1_S (IC 50 1.36 ± 0.01 mg/mL) and reduces the accumulation of reactive oxygen species in HaCaT cells by 80%. However, the specific bioactive compounds responsible for these antioxidant effects are still unclear, and further analysis will be conducted. Additionally, this study promotes recycling hazelnut shells as a valuable substrate for fungal cultivation, supporting sustainable waste management.

Keywords: medicinal mushrooms; biological effects; cultivation; waste substrate; bioactive compounds (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2025
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