Análise química de corpos de frutificação de Pleurotus sajor-caju cultivado em diferentes concentrações de nitrogênio

Silva, Evânia Geralda; Dias, Eustáquio Souza; Siqueira, Félix Gonçalves de; Schwan, Rosane Freitas

doi:10.1590/s0101-20612007000100013

Cited by 14 publications

(9 citation statements)

References 10 publications

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“…In our study, the nitrogen concentration (urea) inhibited inversely proportionally to the mycelial biomass growth of L. crinitus until complete inhibition. Silva et al (2007) reported that the nitrogen concentration of 20.0 g/L in the cultivation medium completely inhibited the mycelial biomass growth of Pleurotus sajor-caju, while in our study the concentration of 16.0 g/L inhibited 95.1% of the mycelial biomass growth. Valle et al (2014) reported that under optimal conditions for laccase activity with L. crinitus, the concentration of 2.8 g/L of nitrogen (urea) inhibited in 72% of the mycelial biomass growth in liquid cultivation.…”

Section: Discussioncontrasting

confidence: 54%

“…Lentinus crinitus (L.) Fr. is a wild basidiomycete, native to Brazil, with pantropical (tropical regions of Africa, Asia and America) and neotropical (Central America, southern Florida, Caribbean islands and South America) distribution, frequently found in decomposing tree trunks (SILVA;GIBERTONI, 2006). This fungus grows in several substrates and is utilized in bioremediation (BALLAMINUT;MATHEUS, 2007), product discoloring in the textile industry (SANCHEZ-LOPEZ et al, 2008;NIEBISCH et al, 2010;ALMEIDA et al, 2018;MARIM et al, 2018) and presents a powerful arsenal of enzymes dedicated to the breakdown and consumption of lignocellulose (VALLE et al, 2014;CAMBRI et al, 2016;CONCEIÇÃO et al, 2017;SANTANA et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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Mycelial biomass cultivation of Lentinus crinitus

et al. 2020

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Lentinus crinitus is a medicinal basidiomycete, little studied regarding the basic cultivation conditions, which is used in bioremediation and consumed by native Indians from the Brazilian Amazon. Also, it produces a fungal secondary metabolite panepoxydone that has been described as an essential regulator of the inflammatory and immune response. This study aimed to evaluate basic conditions of temperature, pH, and nitrogen concentration and source in the cultivation of L. crinitus mycelial biomass. In order to evaluate fungal growth temperature, 2% malt extract agar (MEA) medium, pH 5.5, was utilized from 19 to 40 °C. For pH, MEA had pH adjusted from 2 to 11 and cultivated at 28 °C. Urea or soybean meal was added to MEA to obtain final concentration from 0.5 and 16 g/L of nitrogen, pH of 5.5, cultivated at 28 °C. The best temperature growth varies from 31 to 34 ºC and the optimal one is 32.7º C, and the best pH ranges from 4.5 to 6.5 and the optimal one is 6.1. Protein or non-protein nitrogen concentration is inversely proportional to the mycelial biomass growth. Nitrogen concentrations of 2.0 g/L soybean meal and urea inhibit mycelial biomass growth in 11% and 12%, respectively, but high concentrations of 16.0 g/L nitrogen inhibit the growth in 46% and 95%, respectively. The fungus is robust and grows under extreme conditions of temperature and pH, but smaller adaptation with increasing nitrogen concentrations in the cultivation medium, mainly non-protein nitrogen.

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Section: Discussioncontrasting

confidence: 54%

Section: Introductionmentioning

confidence: 99%

Mycelial biomass cultivation of Lentinus crinitus

et al. 2020

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“…No entanto, há evidências de que o excesso de N mineral ou orgânico, além de exercer um efeito negativo sobre o crescimento micelial, pode inibir a síntese de enzimas que degradam a lignina (KIRK et al, 1978, SILVA et al, 2007GRACIOLLI et al, 2010).…”

Section: Substratosunclassified

“…foi totalmente inibido (SILVA et al, 2007). O início da formação de primórdios em diferentes substratos para o gênero Pleurotus tem sido observado entre 19º e 30º dias (KHANNA et al, 1992, RAGUNATHAN et al, 1996SWAMINATHAN, 2003, GRACIOLLI et al, 2008.…”

Section: Substratosunclassified

Influência da composição química do substrato no cultivo de Pleurotus florida

Figueiró

Graciolli

2011

Ciênc. agrotec.

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RESUMOCom o objetivo de avaliar a influência da composição química do substrato no cultivo do cogumelo comestível Pleurotus florida, seis resíduos agrícolas foram testados: palha de arroz, palha de feijão, palha de trigo, folha de bananeira, palha de sorgo e sabugo de milho. O substrato palha de feijão apresentou resultados semelhantes para a produção (189,8 g kg -1 ), eficiência biológica (89,2%) e número de cogumelos (12) à palha de arroz, substrato utilizado tradicionalmente no cultivo de Pleurotus em escala comercial. Não foi possível atribuir apenas a um fator químico as altas produções e eficiências biológicas observadas em palha de arroz e palha de feijão e muito menos para a baixa produção em palha de sorgo (77,8 g kg ). No geral, substratos com relação C/N em torno de 45 (N = 1,0%), maior conteúdo de cinzas, acrescido de altos teores de P, K, Ca, Mg and Mn foram os melhores para o cultivo de P. florida. Termos para indexação:Cogumelo ostra, resíduos agrícolas, eficiência biológica, produção. ABSTRACTThe purpose of this work was to evaluate the influence of the chemical composition of the substrate in the cultivation of the edible mushroom Pleurotus florida. Six agricultural by-products were tested: rice straw, bean straw, wheat straw, banana leaf, sorghum straw and maize cobs. Using bean straw as the substrate showed similar results for yield (189.8 g kg -1), biological efficiency (89.2%) and number of mushrooms (12) as rice straw substrates traditionally used for the cultivation of Pleurotus on a commercial scale. It was not possible to attribute the high yields and biological efficiency observed in rice and bean straw solely to chemical factors and, even less so for the low yields presented by sorghum straw (77.8 g kg ). In general, substrates with C/N ratio around 45 (N = 1.0%), high ash content and high levels of P, K, Ca, Mg and Mn were the best for the cultivation of P. florida.

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“…Yıldız, Gezer & Temiz, 2002;Silva, Dias, Siqueira, Schwan & 2007). Masarirambi, Mamba & Earnshaw (2011) suggested that mushroom cultivation is an alternative way of enhancing income level in developing countries due to its possibility of low cost of production, high profit and quick returns.…”

Section: Introductionmentioning

confidence: 99%

Effect of Different substrate Disinfection Methods on the Production of Pleurotus ostreatus

Atíla

2016

JAS

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The aim of this paper is to estimate which of disinfection method is more effective in case of higher yield and fewer cost in cultivation of Pleurotus ostreatus in rural areas. For this purpose, four different treatments; scalping in hot water (60, 80 and 100°C), and chemical disinfection (1% formaldehyde) were compared with sterilization by autoclave. It has been noticed that method of disinfection affects mycelium growing duration(day), yield(g/kg), biological efficiency (BE%), avarage weight of fruitbody(g), diameter of pileus(cm), stipe lenght(cm) and width(cm). P. ostreatus took significantly much time to colonise the substrate (19.9 days) disinfected by chemical disinfection compared with others. Chemical disinfection (271.28 g/kg and 91.96%) and scalding hot water at 80 o C (263.42 g/kg and 90.83%) had highest productivity in terms of yield and BE, respectively, while scalding hot water at 60 o C (136.08 g/kg and 46.92%) had least productivity. The largest diameter of fruitbody was obtained by scalding in hot water at 80 o C, while the longest stipes were harvested in disinfected substrate by chemicals. In conclusion, cheaper and more easily applecable scalping in hot water 80°C and chemical disinfection may be use for the disinfection of growing substrates instead of sterilization with autoclave in rural areas.

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Análise química de corpos de frutificação de Pleurotus sajor-caju cultivado em diferentes concentrações de nitrogênio

Cited by 14 publications

References 10 publications

Mycelial biomass cultivation of Lentinus crinitus

Mycelial biomass cultivation of Lentinus crinitus

Influência da composição química do substrato no cultivo de Pleurotus florida

Effect of Different substrate Disinfection Methods on the Production of Pleurotus ostreatus

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