scholarly journals Application of K-Means Clustering Algorithm to Commercial Parameters of Pleurotus spp. Cultivated on Representative Agricultural Wastes from Province of Guayas

2021 ◽  
Vol 7 (7) ◽  
pp. 537
Author(s):  
Fabricio Guevara-Viejó ◽  
Juan Diego Valenzuela-Cobos ◽  
Purificación Vicente-Galindo ◽  
Purificación Galindo-Villardón
Keyword(s):  
Wheat Straw ◽  
Sugarcane Bagasse ◽  
Pleurotus Ostreatus ◽  
Clustering Algorithm ◽  
Antimicrobial Activities ◽  
Nutritional Composition ◽  
Agricultural Wastes ◽  
Biological Efficiency ◽  
Data Mining Technique ◽  
Pleurotus Djamor

Data of the commercial parameters of Pleurotus ostreatus and Pleurotus djamor were analyzed using the data mining technique: K-means clustering algorithm. The parameters evaluated were: biological efficiency, crop yield ratio, productivity rate, nutritional composition, antioxidant and antimicrobial activities in the production of fruit bodies of 50 strains of Pleurotus ostreatus and 50 strains of Pleurotus djamor, cultivated on the most representative agricultural wastes from the province of Guayas: 80% sugarcane bagasse and 20% wheat straw (M1), and 60% wheat straw and 40% sugarcane bagasse (M2). The database of the parameters obtained in experimental procedures was grouped into three clusters, providing a visualization of the strains with a higher relation to each parameter (vector) measured.

scholarly journals Impact of Carbohydrates and Mineral Contents of Different Indigenous Strains of Oyster Mushroom (Jacq. Fr.) Cultivated on Different Agricultural Wastes

2012 ◽  
Vol 1 (1) ◽  
pp. 56-61
Author(s):  
Nasir A. Khan ◽  
Nazia Khaliq ◽  
Imran U. Haq ◽  
Nazir Javed ◽  
Amjad S. Gondal
Keyword(s):  
Wheat Straw ◽  
Pleurotus Ostreatus ◽  
Maximum Amount ◽  
Agricultural Wastes ◽  
Oyster Mushroom ◽  
Biological Efficiency ◽  
Paddy Straw ◽  
Mineral Contents ◽  
Cotton Waste ◽  
Different Strains

Different strains of Pleurotus ostreatus were cultivated on different agro-cellulosic wastes viz. cotton waste, wheat straw and paddy straw to determine the effect of these agro wastes on biological efficiency, carbohydrate and mineral contents including Na, K, Ca, Cu, Zn and Fe. Maximum biological efficiency was recorded on P. ostreatus (grey strain, 134.4%) and (white strain, 113.7%) on wheat straw. P. sajor-caju showed maximum biological efficiency (195.9%) on wheat straw. Maximum amount of Na was found (0.18g/100g) on P. ostreatus (grey strain) and K was found on P. sajor-caju (4.58g/100g) cultivated on paddy straw followed by wheat straw and cotton waste. P. ostreatus (white strain) cultivated on paddy straw showed maximum amount of Cu (0.0009g/100g) while maximum amount of Zn was found (0.017g/100g) on P. ostreatus (white strain). Maximum amount of Fe was found (0.008g/100g) on P. sajor-caju cultivated on cotton waste. P. sajor-caju cultivated on cotton waste showed significantly highest carbohydrate (0.079g/100g).

Abilities of Tectona grandis and Celtis zenkeri (Hardwood) Sawdust as Substrates of Pleurotus Species and Their Indigenous Fungi

2019 ◽  
pp. 1-10
Author(s):  
I. S. Olatunji ◽  
A. A. Sobowale ◽  
C. O. Adenipekun
Keyword(s):  
Pleurotus Ostreatus ◽  
Growth Parameters ◽  
Effective Means ◽  
Tectona Grandis ◽  
Nutritional Composition ◽  
Biological Efficiency ◽  
Pleurotus Pulmonarius ◽  
Pleurotus Species ◽  
Pure Cultures ◽  
To Receive

Mushroom cultivation has continued to receive growing attention because of its nutritional and medicinal values. However, this study examined the effect of hardwood sawdust on the growth of Pleurotus ostreatus and Pleurotus pulmonarius were investigated. Relationship between fungal incidence of the substrates (sawdust) and that of the mushroom were examined. Both Pleurotus ostreatus and Pleurotus pulmonarius were inoculated on fermented and unfermented sawdust of Tectonal grandis and Celtis zenkeri. The fruiting bodies of the mushrooms were harvested and the growth parameters and biological efficiency was recorded. The isolated resident fungi were identified after obtaining pure cultures. The collected data were subjected to analysis (ANOVA) using Generalized Linear Model Procedure (GLM) of Statistical Analysis software (SAS). Means were separated using Duncan’s Multiple Range Test (DMRT) at p ≤ 0.05. Some of the growth parameters of P. ostreatus were significantly (p ≤ 0.05) better than that of P. pulmonarius. Tectona grandis and Celtis zenkeri sawdust had significant (p ≤ 0.05) impact on different growth parameters of the two mushrooms. Fermentation or non-fermentation of the substrates (sawdust) had no significant (p ≤ 0.05) impact on growth parameters of the mushrooms. Growth parameters of the two mushrooms were significantly better in 0% additive (p ≤ 0.05) than in the other additive concentrations. Five fungi were identified as indigenous fungi of the unfermented sawdust which did not significantly differ from those of the fermented sawdust and mushrooms. Nutritional composition of the mushrooms that grew on fermented and unfermented sawdust were good and comparable. The mushrooms were rich in protein, fibre, ash, moisture, fat and carbohydrate. Cultivation of mushrooms on hardwood sawdust is thus an effective means of managing such waste.

scholarly journals Biological efficiency and nutritional value of Pleurotus ostreatus cultivated in agroindustrial wastes of palm oil fruits and cocoa almonds

2020 ◽  
Vol 87 ◽  
Author(s):  
Rafael Mota da Silva ◽  
Cristiano Oliveira do Carmo ◽  
Thiago Alves Santos de Oliveira ◽  
Vinícius Reis de Figueirêdo ◽  
Elizabeth Amélia Alves Duarte ◽  
...  
Keyword(s):  
Palm Oil ◽  
Pleurotus Ostreatus ◽  
Good Alternative ◽  
Nutritional Composition ◽  
Biological Efficiency ◽  
Mycelium Growth ◽  
Ecological Benefits ◽  
Processing Wastes ◽  
Cultivated Mushroom ◽  
Mushroom Yield

ABSTRACT The cocoa and palm oil agro-industries active in the state of Bahia, Brazil, generate high quantities of lignocellulosic wastes that could be recycled through their use in the formulation of substrates to cultivate edible mushrooms. Pleurotus ostreatus, also known as oyster mushroom, is the second most cultivated mushroom in the world due to its highly appreciated gastronomic, nutritional, and medicinal characteristics. This work evaluated the vertical mycelium growth, biological efficiency, mushroom yield, and nutritional composition of P. ostreatus produced in substrates formulated with a combination of palm oil fruit mesocarp (POFM) and cocoa almond peels (CAP) processing wastes. The substrates were formulated with the following POFM/CAP proportions (%/%): S1 – 86.4/9.6; S2 – 76.8/19.2; S3 – 67.2/28.8; S4 – 57.6/38.4, and S5 – 48.0/48.0. Substrates also received 3% powdered charcoal and 1% calcium carbonate. Substrates S1, S2, S3, and S4 were superior for vertical mycelium growth. S2 promoted the best biological efficiency (148.8%) and yield (560.5g·kg-1).The mushrooms produced in all substrates presented good nutritional values, although mushrooms produced using the S2 presented the highest crude protein content. Overall, S1 is the recommended substrate as it results in higher yields of nutrient rich mushrooms. Production of P. ostreatus in substrates composed of POFM and CAP represents a good alternative for recycling these wastes with potential economic and ecological benefits to regions where palm oil and cocoa are grown.

scholarly journals The Effects of Different Substrate Combinations on Growth and Yield of Oyster Mushroom (Pleurotus ostreatus)

2021 ◽  
Vol 2021 ◽  
pp. 1-10
Author(s):  
Charles Muswati ◽  
Kennedy Simango ◽  
Linda Tapfumaneyi ◽  
Moses Mutetwa ◽  
Wonder Ngezimana
Keyword(s):  
Wheat Straw ◽  
Pleurotus Ostreatus ◽  
Developmental Stages ◽  
Growth And Yield ◽  
Biological Efficiency ◽  
Cost Ratio ◽  
Average Yield ◽  
Benefit Cost Ratio ◽  
Cotton Waste ◽  
Benefit Cost

This research was aimed at evaluating the effect of mixing substrates on the growth and yield of Oyster mushrooms (Pleurotus ostreatus). Seven substrates, namely, Trt1 (cotton waste), Trt2 (wheat straw), Trt3 (crushed baobab fruit shells, 100%), Trt4 (cotton husk + wheat straw + crushed baobab fruit shells, 1 : 1 : 1), Trt5 (baobab fruit shells + cotton husks, 1 : 1), Trt6 (baobab fruit shells + wheat straw, 1 : 1), and Trt7 (cotton waste + wheat straw, 1 : 1) were used. Each treatment was replicated 5 times and laid out in a CRD. The duration of developmental stages, yield, and biological efficiency was recorded. Cotton waste demonstrated a significantly ( p < 0.05 ) higher mycelial colonization rate taking an average of 18.20 days to complete full spawn run, 23.20 days from spawning to pinhead formation, 2.80 days for pins to mature, and an average of 26.00 days to first harvest. There was a significant ( p < 0.05 ) difference in the total number of pins with cotton waste being the highest with an average of 29.80 pins, although it was not significantly different from Trt4. The highest (5.40 cm) stipe girth was recorded from Trt4 while the highest (5.22 cm) cap diameter was recorded in Trt1. There was a significant ( p < 0.05 ) difference in yield and biological efficiency. Trt1 had the highest (1.292 kg) average yield; however, it was not significantly ( p > 0.05 ) different from that of Trt4 (1.289 kg). From the research, it was observed that mixing substrate can help to increase yield and, as a result, a higher benefit-cost ratio. Therefore, further studies should be done to evaluate the effects of mixing other substrates besides the ones used in this current research.

scholarly journals Different Agricultural Wastes as Substrates for Growth and Production of Pleurotus florida

2021 ◽  
Vol 9 (10) ◽  
pp. 835-841
Author(s):  
Vishal Hiwale
Keyword(s):  
Wheat Straw ◽  
Agricultural Waste ◽  
Total Yield ◽  
Pigeon Pea ◽  
Agricultural Wastes ◽  
Biological Efficiency ◽  
Paddy Straw ◽  
Pleurotus Florida ◽  
Bamboo Leaves ◽  
Pea Pod

Abstract: The present study was done impact of agricultural wastes on growth and production by oyster mushrooms i.e., Pleurotus florida which have a rich source of protein and also has important medicinal properties. The yield and Biological efficiency of different lignocellulosic agricultural wastes viz. Wheat straw, Maize leaves, Cob leaves, Jawar residue, Bajra residue, Bamboo leaves, Paddy straw, Sugarcane, Cotton, Soyabean, Safflower (Pods residue), Pigeon pea (Pods residue), Mung bean (Pods residue), Cowpea (Pods residue). the paddy straw showed the highest yield 892.25 gm with the highest biological efficiency 89.09 % followed by Cowpea pods residue gives 879.65 gm yield of Pleurotus florida and shows biological efficiency of 87.72%, followed by Wheat straw substrate showed 871.18 gm yields with 87.27 % biological efficiency. The Pigeon pea pod residue showed 865.85 gm yield during three harvestings having 86.36% biological efficiency. Similar result was seen Bajra residue and soybean pod residue in bajra residue showed 792.45gm yield during three harvestings having 79.245% biological efficiency, in soybean pod residue showed 791.63 gm yield during three harvestings having 79.163 % biological efficiency. The lowest yield was seen in Bamboo leaves and cotton residues. In cotton residue substrate 433.22 gm total yield along with 43.32% biological efficiency, Bamboo leaves substrate total yield were seen 438.12gm with 43.81 % biological efficacy. Keywords: Pleurotus florida, Agricultural waste, Substrates, Biological efficiency

scholarly journals Data-Mining Techniques: A New Approach to Identifying the Links among Hybrid Strains of Pleurotus with Culture Media

2021 ◽  
Vol 7 (10) ◽  
pp. 882
Author(s):  
Fabricio Guevara-Viejó ◽  
Juan Diego Valenzuela-Cobos ◽  
Purificación Vicente-Galindo ◽  
Purificación Galindo-Villardón
Keyword(s):  
Data Mining ◽  
Pleurotus Ostreatus ◽  
Clustering Algorithm ◽  
Culture Media ◽  
Rice Flour ◽  
Malt Extract ◽  
Cultural Characteristics ◽  
Data Set ◽  
Data Mining Techniques ◽  
Pleurotus Djamor

In this study, a data set of mycelial and cultural characteristics of hybrid strains of Pleurotus ostreatus and Pleurotus djamor were analyzed using three data-mining techniques: the K-medoids clustering algorithm, PCA biplot and the association rules algorithm. The characteristics evaluated were as follows: maximum velocity; lag phase; biomass; and exopolysaccharides content in the cultivation of 50 hybrid strains of Pleurotus ostreatus and 50 hybrid strains of Pleurotus djamor. Different mixtures of culture media were used to supplement Ecuadorian agricultural products. Data of the parameters obtained in the experimental methods were grouped into four clusters, obtaining a presentation of the hybrid strains of Pleurotus with a higher relation to each characteristic measured. Data-mining tools showed the hybrid strains cultivated on solid-culture media (M1 = malt extract agar and rice flour) and liquid-culture media (L1 = maltose, yeast extract and rice flour) presented the highest mycelial and cultural characteristics. These results are good indicators to improve the industrial production of edible fungi by using rice flour in the cultivation, contributing to the mushroom market and circular economy.

scholarly journals Biological efficiency and nutritional composition of Pleurotus djamor cultivated on bagasse of Agave salmiana

2021 ◽  
Author(s):  
Brianda Susana Velázquez de Lucio ◽  
Edna María Hernández Domínguez ◽  
Xochitl Tovar Jiménez ◽  
Laura Sofia Castillo Ortega ◽  
Gerardo Díaz Godínez ◽  
...  
Keyword(s):  
Production Rate ◽  
Morphological Characteristics ◽  
Its Region ◽  
Nutritional Composition ◽  
Molecular Techniques ◽  
Biological Efficiency ◽  
Fruiting Bodies ◽  
Suitable Alternative ◽  
Pleurotus Djamor ◽  
Nitrogen Concentrations

Abstract The objective of the present study was to use molecular techniques to identify a wild mushroom isolated from A. salmiana, and then evaluate its biological efficiency, production rate, and nutritional and morphological characteristics when grown on A. salmiana bagasse with various concentrations of urea as a source of nitrogen. Two types of inoculum were employed: in grain (WG) and pellet (WP) form. The substrate was supplemented with total nitrogen concentrations (TN) of 0.77, 0.95, 1.14, 1.32, and 1.5% to evaluate its effect on the biological efficiency (BE), production rate (PR), and morphological and nutritional characteristics of the fruiting bodies. The molecular analysis of the ITS region permitted the amplification of a product of 750 pb. The mushroom was identified as Pleurotus djamor. After supplementing the substrate with urea, a BE of 70% was obtained in the sample inoculated with WG at 1.32% TN. Observations found that the TN concentration of 1.5% produced malformations in the fruiting bodies. The analysis of the sporocarps indicated a raw protein content (RP) of 15–26% and that the mushroom’s nutritional composition changed according to the inoculum utilized and the percentage of nitrogen in the substrate. This is the first report on the isolation of P. djamor on A. salmiana as an atypical substrate, and so represents an opportunity for further study and commercialization. To its chemical composition and high availability, A. salmiana bagasse is a suitable alternative substrate for cultivating edible mushrooms, specifically P. djamor.

Effects of Nitrogen Supplementation With Wheat Straw on Productivity of Pleurotus Djamor (Rumph. Ex FR.) Boedijn

2021 ◽  
Vol 50 (2) ◽  
pp. 227-233
Author(s):  
Anupam Barh ◽  
Shwet Kamal ◽  
Babita Kumari ◽  
Sudheer Kumar Annepu ◽  
Satish Kumar ◽  
...  
Keyword(s):  
Wheat Straw ◽  
Present Experiment ◽  
Maximum Yield ◽  
Biological Efficiency ◽  
Colour Intensity ◽  
Nitrogen Supplementation ◽  
Substrate Composition ◽  
Pleurotus Djamor ◽  
Suitable Substrate

The present experiment was conducted in order to prepare a suitable substrate composition using wheat straw and also to ascertain the effect of various levels of nitrogen supplementation on the yield and biological efficiency of Pleurotus mushroom. The strain DMRP-205 of Pleurotus djamor was used in the study. Among different treatment combinations, maximum biological efficiency of 75.11% was recorded in T2 with 0.5% of urea supplementation. It was also observed that, though the higher nitrogen supplementation does not increase the yield proportionately, it has significant effect on the spawn run period, cropping duration and colour intensity of the basidiocarp. The study necessitates the nitrogen supplementation at optimum levels (0.5%) to realize the maximum yield in P. djamor cultivation. Bangladesh J. Bot. 50(2): 227-233, 2021 (June)

Effect of selenium enriched wheat substrate on the nutritional and antioxidant properties of Pleurotus spp.

2021 ◽  
Author(s):  
A. Sravani ◽  
S. Sharma ◽  
A. Kalia
Keyword(s):  
Wheat Straw ◽  
Radical Scavenging Activity ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Total Soluble Protein ◽  
Biological Efficiency ◽  
Total Phenolic ◽  
Pleurotus Djamor ◽  
Ft Ir ◽  
Total Soluble Protein Content

AbstractThe study demonstrated that cultivation of Pleurotus ostreatus var. florida, Pleurotus eryngii, Pleurotus cornucopiae and Pleurotus djamor on selenium enriched substrate did not significantly affect biological efficiency (%), but total soluble protein content, total phenolic content, flavonoid content and free radical scavenging activity (%) were found to be significantly improved in Se enriched fruit bodies as compared to the control. Elemental analysis of the Se biofortified Pleurotus mushrooms through SEM-EDS showed signals characteristic for selenium on surface of P. ostreatus. var. florida and P. djamor confirming that selenium was incorporated into the cell wall of these fruiting bodies. The Se content was found to be 22.34 μg g−1 dw in Se enriched wheat straw and 0.059 μg g−1 dw in respective non-enriched wheat straw. Se contents of Se-enriched fruit bodies were found to be higher compared to non-enriched Pleurotus spp. FT-IR spectra of proteins from Pleurotus spp. indicated an increase in the flexibility, unfolding, hydrophilicity of the proteins upon Se supplementation.

scholarly journals Effect of Chemically Disinfected Wheat Straw on the Growth and Yield of Pleurotus Ostreatus Mushroom

2018 ◽  
Vol 5 (4) ◽  
pp. 189
Author(s):  
Kanij Mohoua Roksana ◽  
Kamal Uddin Ahmed ◽  
Md. Nashir Uddin
Keyword(s):  
Nitrogen Content ◽  
Effective Treatment ◽  
Wheat Straw ◽  
Fruiting Body ◽  
Pleurotus Ostreatus ◽  
Growth And Yield ◽  
Oyster Mushroom ◽  
Biological Efficiency ◽  
Biological Yield ◽  
Almost All

We investigated the effect of chemically disinfected wheat straw on the growth and yield of oyster mushroom (Pleurotus ostreatus). Various levels of treatments combined with different time (12, 18 and 24 hours) and dose of Formalin (250, 500 and 750ppm) and Bavistin (75ppm) were used, and the results were compared with the control. Compared to the control, almost all the treatments showed increased values, and among them significantly higher mycelium running rate, the lowest time from stimulation to primordial initiation and to harvest, number of primordial per packet, number of fruiting body per packet were found in treatment consists of 750ppm of Formalin with 75ppm of Bavistin for 18 hours. Length and diameter of the stipe, diameter and thickness of pileus, biological yield, economic yield, dry yield and biological efficiency were also significantly increased in this treatment. Wheat straw treated with 500ppm of Formalin with 75ppm of Bavistin for 18 hours performed best in terms of per cent protein and nitrogen content. However, weight of individual fruiting body was significantly higher when treated with 250ppm Formalin with 75ppm of Bavistin for 24 hours.As the sterilization of wheat straw using 750ppm of formalin with 75ppm of Bavistin for 18 hours could control pathogens and gave increased yield, this treatment might be useful as an economically effective treatment for the highest yield of oyster mushroom.

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