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International Journal of Medicinal Mushrooms
IF: 1.423 5-Year IF: 1.525 SJR: 0.431 SNIP: 0.716 CiteScore™: 2.6

ISSN Print: 1521-9437
ISSN Online: 1940-4344

International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushr.v4.i2.20
10 pages

Effect of Olive Oil Mill Waste Waters on the Edible and Medicinal Mushroom Lentinus edodes (Berk.) Sing. Growth and Lignin Degrading Enzymes

Slaven Zjalic
Dipartimento di Biologia Vegetale, Universita di Roma "La Sapienza," Largo Cristina di Svezia 24, 00165 Roma, Italy
Anna Adele Fabbri
Dipartimento di Biologia Vegetale, Universita di Roma "La Sapienza," Largo Cristina di Svezia 24, 00165 Roma, Italy
Alessandra Ricelli
Dipartimento di Biologia Vegetale, Universita di Roma "La Sapienza," Largo Cristina di Svezia 24, 00165 Roma, Italy
Massimo Reverberi
Dipartimento di Biologia Vegetale, Universita di Roma "La Sapienza," Largo Cristina di Svezia 24, 00165 Roma, Italy
Emanuela Galli
Istituto di Biologia ed Ecofisiologia Vegetale- Area di Ricerca di Roma del CNR, via Salaria km. 29. 300, 00016 Monterotondo-Roma, Italy
Corrado Fanelli
Dipartimento di Biologia Vegetale, Universita di Roma "La Sapienza," Largo Cristina di Svezia 24, 00165 Roma, Italy

ABSTRACT

The olive oil mill waste waters (OMW) are byproducts of olive oil industries and represent a pollution problem in all Mediterranean countries, as they are rich of phenols and other organic matter. Among the other compounds, the OMW contain small amounts of lipids (about 2% dry weight), mostly represented by oleic and palmitic acids, which could stimulate fungal growth. The effect of OMW on Lentinus edodes (Berk.) Sing. growth and production of laccase and Mn-peroxidase on liquid and solid cultures media was tested in the studies described in this article. The results showed that OMW are efficient as supply that enhances fungal growth without interfering with the ligninolytic enzyme production and lignin breakdown. The high OMW concentration (50% v/v) on wheat straw did stimulate mycelia growth but resulted in slight inhibition of fruiting body formation, whereas the lower concentration (25% v/v) enhanced both mycelia growth and fruiting body production. From the results obtained OMW could represent a good nutritional source to improve fungal development and their utilization in mushroom production could be an efficient strategy to solve the pollution problem related to OMW.


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