Mycelial growth evaluation of Pleurotus ostreatus and Agrocybe aegerita on pear pomaces

Martínez, Daniel Alfredo; Buglione, Maria; Filippi, Marcela Viviana; Reynoso, Liliana del Carmen; Rodríguez, Gustavo E.; Agüero, Marta Susana

doi:10.6018/analesbio.37.1

Cited by 14 publications

(15 citation statements)

References 16 publications

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“…Basic amino acids such as lysine and arginine decreased in all treatments in the fermentation process with the fungus. These amino acids were probably destabilized by the acidic conditions associated with the fermentation since the process was maintained at pH < 4 [44,45]. The values of these amino acids in the fermented products are similar to those reported for Pleurotus ostreatus [12].…”

Section: Resultssupporting

confidence: 54%

Increasing Antioxidant Activity and Protein Digestibility in Phaseolus vulgaris and Avena sativa by Fermentation with the Pleurotus ostreatus Fungus

et al. 2017

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The aim of the research was to determine the impact of fermentation with Pleurotus ostreatus on kidney beans, black beans, and oats. The results indicate that the fungus has a positive effect on the substrates when compared to the controls. The antioxidant activity (39.5% on kidney beans and 225% on oats in relation to the controls) and content of total polyphenols (kidney beans three times higher regarding the controls) increased significantly by the presence of the fungus mycelium, even after simulated digestion. There was a significant increase in protein digestibility (from 39.99 to 48.13% in black beans, 44.06 to 69.01% in kidney beans, and 63.25 to 70.01% in oats) and a decrease of antinutrient tannins (from 65.21 to 22.07 mg in black beans, 35.54 to 23.37 in kidney beans, and 55.67 to 28.11 in oats) as well as an increase in the contents of some essential amino acids. Overall, this fermentation treatment with Pleurotus ostreatus improved the nutritional quality of cereals and legumes, making them potential ingredients for the elaboration and/or fortification of foods for human nutrition.

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Section: Resultssupporting

confidence: 54%

Increasing Antioxidant Activity and Protein Digestibility in Phaseolus vulgaris and Avena sativa by Fermentation with the Pleurotus ostreatus Fungus

et al. 2017

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“…Under in vitro conditions, by controlling the temperature, humidity, and nutrient medium, the mycelial growth allows the evaluation of the vigor and growth speed of isolated strains. The different stages of mycelial growth can be identified because the soluble sugars are consumed during the stages of absorption, cell division, and mycelial growth, resulting in mycelial growth from 4 to 10 mm day −1 in substrate, and from 13 to 30 mm day −1 in culture medium [36]. However, as observed in our results, which demonstrated mycelial growth of less than 5 mm day −1 , these responses may vary according to the evaluation methodology used, nutrient medium, and biological material.…”

Section: Discussionmentioning

confidence: 99%

Use of lignocellulosic corn and rice wastes as substrates for oyster mushroom (Pleurotus ostreatus Jacq.) cultivation

et al. 2020

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The accumulation of agronomic wastes has caused several environmental problems, such as air and soil contamination, and insect and pathogen proliferation, among others. To mitigate this, studies have evaluated the use of these wastes as substrates for the cultivation of Pleurotus mushrooms, a low-cost/nutritionally important crop. This study aimed to evaluate the use of corn stubble and rice straw as substrates for the in vitro production of oyster mushrooms (Pleurotus ostreatus Jacq.) and the productive characterization (biological efficiency, production rate, earliness, daily productive capacity) of four isolated strains. The strains PO/A01, PO/A02, PO/A03, and PO/A04 were grown in Potato-Dextrose-Agar medium until complete colonization. The experiment was evaluated under a completely randomized design with 6 replications. Subsequently, the corn stubble and rice straw were disinfected, inoculated, bagged, incubated, and subjected to induction-fructification. The productive period ended after three harvests. At this stage, the experiment was conducted under a completely randomized design with a 4 × 2 factorial arrangement with 8 replications. The P. ostreatus strains inoculated in the corn stubble, compared to rice straw, showed 93.93% biological efficiency and a 2.07% production rate, representing increases of 30% and 50%, respectively. The strains PO/A03 and PO/A04 showed higher biological efficiency and organic matter loss. The PO/A02 strain showed greater earliness, with approximately 10 days to harvest. This study concluded that the isolated strains of P. ostreatus allow for the efficient use of corn stubble and rice straw, and can contribute to the management of agronomic wastes. Novelty statement: In developing countries, production of edible mushrooms of the genus Pleurotus can be an efficient tool for alternative and eco-friendly agronomic waste management, allowing for highly nutritious food to be provided to the population through the bioconversion of lignocellulosic compounds. This system has a low production cost and the postharvest substrate, Spent Mushroom Substrate (SMS), can be used as organic fertilizer or animal feed. The aim of this experiment was to contribute to the technical and scientific information on the productive characterization of four Pleurotus ostreatus (Jacq.) strains occurring in the Peruvian region.

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“…Esta información es fundamental para el inicio del desarrollo de protocolos a nivel de laboratorio en los que se aprovechen las capacidades bioquímicas de estos organismos. El crecimiento micelial medido como área o diámetro en función del tiempo, es una de las variables de respuesta macroscópica utilizada en estudios de adaptación in vitro (Lee et al 2014, Gutiérrez-Soto et al 2015, Martínez et al 2015. A partir de esta variable primaria, se obtienen características de crecimiento secundarias como es el caso de la velocidad específica de crecimiento (µ) (Panikov 2011), el cual es un parámetro combinado que abarca las distintas etapas de la morfogénesis micelial (Viniegra- González et al 1993).…”

Section: Resultados Y Discusiónunclassified

Evaluation of the mycelial growth of Trametes villosa (Sw.) Kreisel in media supplemented with copper (II) and sugarcane vinasse

Caballero¹,

Miranda²,

Jiménez³

et al. 2018

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Se evaluó el efecto de distintos niveles de cobre (II) sobre la velocidad específica de crecimiento de Trametes villosa en medio PDA 4% y medio PDA 4% con 25% (v/v) de vinaza. La velocidad específica de crecimiento se obtuvo a partir de los datos de área micelial y de la ecuación para el modelo logístico de crecimiento. Las mejores condiciones para el crecimiento micelial fueron PDA 4% con 25% (v/v) de vinaza y niveles de cobre divalente de 0,5 y 1,0 mM. Estos resultados indican que, de acuerdo con las condiciones de cultivo utilizadas, ambos suplementos favorecen el crecimiento micelial y entregan información esencial para el desarrollo de potenciales procesos de reutilización y valorización de la vinaza. The effect of different levels of copper (II) on the specific growth rate of Trametes villosa was evaluated. The strain was grown on 4% PDA and 4% PDA on a 25% (v/v) vinasse dilution. The specific growth rate was obtained from the mycelial area data which was modeled with the logistic equation. The best growth condition was 4% PDA in a 25% (v/v) vinasse dilution with copper (II) concentrations of 0.5 and 1.0 mM. These results indicate that under the utilized culture conditions, both supplements favor mycelial growth and provide essential information for potential processes of vinasse reuse and valorization.

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Mycelial growth evaluation of Pleurotus ostreatus and Agrocybe aegerita on pear pomaces

Cited by 14 publications

References 16 publications

Increasing Antioxidant Activity and Protein Digestibility in Phaseolus vulgaris and Avena sativa by Fermentation with the Pleurotus ostreatus Fungus

Increasing Antioxidant Activity and Protein Digestibility in Phaseolus vulgaris and Avena sativa by Fermentation with the Pleurotus ostreatus Fungus

Use of lignocellulosic corn and rice wastes as substrates for oyster mushroom (Pleurotus ostreatus Jacq.) cultivation

Evaluation of the mycelial growth of Trametes villosa (Sw.) Kreisel in media supplemented with copper (II) and sugarcane vinasse

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