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International Journal of Medicinal Mushrooms
Fator do impacto: 1.423 FI de cinco anos: 1.525 SJR: 0.431 SNIP: 0.716 CiteScore™: 2.6

ISSN Imprimir: 1521-9437
ISSN On-line: 1940-4344

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International Journal of Medicinal Mushrooms

DOI: 10.1615/IntJMedMushrooms.v17.i11.100
pages 1095-1105

Optimization of the Yield of Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum (Higher Basidiomycetes), Cultivated on a Sunflower Seed Hull Substrate Produced in Argentina: Effect of Olive Oil and Copper

Maximiliano A. Bidegain
Departamento de Biología, Bioquímica y Farmacia, Universidad Nacional del Sur, Bahía Blanca, Argentina; Laboratorio de Biotecnología de Hongos Comestibles y Medicinales, CERZOS, CONICET-UNS, Bahía Blanca, Argentina
Maria Amelia Cubitto
Departamento de Biologia, Bioquimica y Farmacia, Universidad Nacional del Sur, San Juan 670, Bahia Blanca (8000), Buenos Aires, Argentina; Centro de Recursos Naturales Renovables de la Zona Semiárida (CERZOS), Universidad Nacional del Sur – CONICET. Laboratorio de Biotecnologia de Hongos Comestibles y Medicinales. Camino La Carrindanga Km. 7, Bahia Blanca (8000), Buenos Aires, Argentina
Nestor Raul Curvetto
Laboratory of Biotechnology of Edible and Medicinal Mushrooms, CERZOS (CONICET-UNS), Bahia Blanca, Buenos Aires, Argentina

RESUMO

Sunflower seed hulls were used as the main component of a solid substrate for the cultivation of the lingzhi or reishi medicinal mushroom Ganoderma lucidum. This study evaluated the effects of supplementing the substrate with olive oil and copper (II) on the mushroom production (MP) parameters and fruiting body total triterpenoid content. The addition of 1.5% olive oil increased total MP by 21.7% (dry basis) in 3 flushes. Copper (60 ppm) increased the daily productivity of the first flush (MP per day) by both reducing the time needed to harvest the crop and increasing the MP. However, the MP at the second and third flushes was reduced. When both supplements were combined, the MP at the first flush was 43% higher than with control treatment. No significant change in mushroom total triterpenoid content was observed by the addition of supplements to the substrate. An increase of 145−155% in the mushroom copper content was obtained by the addition of 60 ppm copper to the substrate. It is thus recommended to use substrate formulations containing both olive oil and copper (II) and harvest just the first flush.


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