Lorena Pastorini Donini

Desenvolvimento in vitro de Agaricus brasiliensis em meios suplementados com diferentes farelos

O cogumelo Agaricus brasiliensis normalmente e cultivado em meios a base de batata ou composto orgânico. O objetivo deste trabalho foi avaliar o desenvolvimento in vitro da linhagem ABL 97/11 de A. brasiliensis , cultivada em meio a base de composto suplementado com diferentes concentracoes de farelos de milho, trigo, arroz e soja, a temperatura constante de 28oC. Avaliou-se, diariamente, o diâmetro da colonia e obteve-se, aos seis dias de cultivo, a massa miceliana. A adicao de farelos de soja ou arroz nao favorece o desenvolvimento in vitro de A. brasiliensis . O meio de cultura suplementado com 20% de farelo de trigo apresenta as maiores massa miceliana e velocidade de crescimento, comparado aos meios suplementados com outros farelos, na mesma concentracao. Na concentracao de 10% de farelo, o milho promove a maior velocidade de crescimento do cogumelo.

Cultivo de shimejii em substrato capim-elefante suplementado com diferentes tipos de farelos

Resumen en: The purpose of this work was to evaluate the cultivation of the strains of P. ostreatus in elephant grass substrate supplemented with different kinds of ...

Cultivo e características nutricionais de Pleurotus em substrato pasteurizado

The objective of this work was to evaluate the productivity, biological efficiency, fresh matter, and centesimal composition of mushroom Pleurotus ostreatus (BF24) and Pleurotus sajor-caju (PSC96/03 and PSC01/06) grown in pasteurized elephant grass substrate (Pennisetum purpureum). It was also assessed the initial and final Carbon/Nitrogen ratio. The dried 2-cm-particulate substrate was moist for 24 hours and pasteurized at 100oC during 30 minutes. Then, it was added 3% of inoculum of each strain. The substrate was placed into 1-kg polypropylene bags. The bags were incubated at 26oC and relative humidity of 75 to 90%. In the fructification phase they were incubated at 23±3oC. The strain BF24 had the highest fresh matter (281.19g), biological efficiency (112.46%) and productivity (28.11%). The substrate having initial Carbon/Nitrogen ratio of 162:1 showed the lowest final ratio (68:1), after P. sajor-caju (PSC01/06) cultivation. The strain PSC96/03 showed higher protein content than the others, and BF24 had the highest lipid content. There were no significant differences for carbohydrate and ash contents for the different species and strains. The strains BF24 and PSC01/06 had similar fiber amount, but higher than PSC96/03. The two species of Pleurotus can be cultivated in pasteurized elephant grass, supressing the composting process.