Carposome productivity of Pleurotus ostreatus and Pleurotus eryngii growing on agro-industrial residues enriched with nitrogen, calcium salts and oils

Dedousi, Marianna; Melanouri, Eirini-Maria; Diamantopoulou, Panagiota

doi:10.1016/j.crcon.2023.02.001

Cited by 20 publications

(14 citation statements)

References 110 publications

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“…In this study, the essential factors for the production of oyster mushrooms are evaluated in depth using coffee pulp as a substrate. Among these factors, is the importance of the pH level in the substrate used, which should be between 5 and 6, this does not mean that a higher pH is not effective, neutral levels close to 7 are also very effective in substrates based on wheat and oats (Dedousi et al 2023), as well as its level of carbon and nitrogen, which represent the main food source for the fungus. The experimentation was carried out on 3 different substrate compounds, the first compound used only white pellet shavings, the second composition of the substrate is based on a mixture of shavings and coffee pulp and the last one used only coffee pulp, of the three the substrate The most efficient was the combination of coffee pulp with white pellet shavings, obtaining more than 90% biological efficiency, this composition being the most efficient of the three substrates (Mendoza 2020).…”

Section: Literature Reviewmentioning

confidence: 99%

Application of Brewer Spent Grain from the Beer Industry as a Unique Substrate for the Cultivation of Pleurotus Ostreatus Mushrooms

S. Lozano Rocha,

Aguilar Luna,

Lizárraga-Portugal

2023

Proceedings of the International Conference on Industrial Engineering and Operations Management

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In Peru, the beer industry produced 998 million liters during 2020, and its manufacturing process generates various agro-industrial waste such as Brewer Spent Grain (BSG), equivalent to 80% of all agro-industrial waste generated approximately 570 million tons in the year 2020. This research aims to establish whether BSG as a residual product can function as a substrate for the cultivation and production of Pleurotus ostreatus mushrooms, offering an alternative to existing commercial substrates by evaluating the performance of its characteristics such as pH level, presence of ash, nitrogen, its biological efficiency (kg of mushroom/kg substrate), its productivity (biological efficiency/cultivation time), among other factors. An experimental design of mushroom cultivation was carried out according to the conventional assisted fruiting method in polyethylene bags. The laboratory analyses concluded that BSG as a substrate for the cultivation of Pleurotus ostreatus had a biological efficiency of 27,25% lower than the results of other substrates such as corn and coffee pulp, which have a biological efficiency of 68% and 70% respectively; although it presented a productivity of 0,605 compared to similar studies that on average had a productivity of 0,75. The study showed that BSG is a good substrate for the cultivation of Pleurotus ostreatus and it is expected that its performance can improve when used as a mixed miscellaneous substrate, offering a new circular economy alternative for the brewing industry.

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Section: Literature Reviewmentioning

confidence: 99%

Application of Brewer Spent Grain from the Beer Industry as a Unique Substrate for the Cultivation of Pleurotus Ostreatus Mushrooms

S. Lozano Rocha,

Aguilar Luna,

Lizárraga-Portugal

2023

Proceedings of the International Conference on Industrial Engineering and Operations Management

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“…Apart from wheat straw, which is the most common cultivation substrate, other materials, such as barley and oat straw, beech wood shavings, coffee residue, rice bark, etc., have been examined as alternative substrates [5,[13][14][15].…”

Section: Introductionmentioning

confidence: 99%

The Influence of Substrate and Strain on Protein Quality of Pleurotus ostreatus

Gardeli,

Mela,

Dedousi

et al. 2024

Applied Sciences

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Background: The effect of substrate and strain on the nutritional and functional properties of mushroom flours and protein concentrates (PCs) has not thoroughly been investigated. Methods: The proteins of P. ostreatus flours (strains AMRL144 and 150) were isolated following alkaline extraction (pH 12) and isoelectric precipitation (pH 4) as it was determined by the solubility curves. The protein quality of the flours and PCs were evaluated by determining the protein solubility index (PSI) and their functional properties, such as water (WAC) and oil absorption capacity (OAC), foam capacity (FC), foam stability (FS) and emulsion stability (ES). The amino acid (AA) composition of the flours was determined by reversed-phase liquid chromatography after protein hydrolysis and o-phthalaldehyde derivatization. Results: The PSIs of the flours and PCs of P. ostreatus were comparable to those of soy protein flours and protein concentrates. The highest AA concentration was found for both strains when cultivated on the barley and oat straw (BOS) substrate, showing a similar trend as the protein content. A principal component analysis (PCA) indicated an impact of the strain on the functional properties. Conclusions: Both strains can produce high quality proteins especially when cultivated on wheat straw (WS). The FS was positively correlated with the P. ostreatus strain AMRL150 whereas the FC was positively correlated with AMRL144.

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“…The substrates of oyster mushrooms have the potential to produce certain bioactive substances for functional foods (Caldas et al, 2022). The biochemical characteristics of mushroom substrates are often affected at the time of preparation, resulting in their lower biological efficiency Dedousi et al, 2023;Lu et al, 2023;Torres-Martínez et al, 2022).…”

Section: Introductionmentioning

confidence: 99%

A multifaceted analysis of spent mushroom substrate of selected oyster mushrooms for enzymatic activity, proximate composition, and antimicrobial activity

Afsar,

Zia,

Us Salam

et al. 2024

Ital. J. Food Sci.

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The global market for mushrooms is growing due to its nutritional enrichment, potential usage as a bioremediation, enzyme production, and functional food development. However, the leftover post-harvest mushroom substrate (SMS) generates certain environmental concerns. This study aimed to investigate the potential of SMS obtained from two oyster mushroom species—Pleurotus ostreatus and Pleurotus djamor. These were examined regarding sustainability by analyzing their lignocellulosic enzyme production, cellulose yield, antimicrobial properties, and proximate composition. The findings for both P. ostreatus and P. djamor showed higher activity of amylase, that is, 0.3 U (μmol/min) and 0.7 U (μmol/min), respectively, compared to activity of cellulase, which showed 0.3 U (μmol/min) and 0.5 U (μmol/min), respectively. SMS showed the highest activity of lignocellulosic enzymes, compared to non-SMCs and controls at p ≤ 0.00 and ≤0.01), proving fungual mycelia as the precursor of enzymes activity, as no mushroom is cultivated due to least enzymatic activity. The results for proximate analysis of SMCs showed a significant difference from non-SMCs. The findings for P. djmor revealed protein (1.23%), fats (1.3%), and ash (8.11), which were significantly higher than in P. ostreatus. A positive corelation of 52% was established between SMCs with amylase, while a correlation of 20% was observed with cellulase, depicting an impact of mycelia in the breakdown of protein for amylase production. The SMC samples were also subjected to antibacterial analysis against Staphylococcus aureus, E. coli, and Xanthomonas. A higher minimum inhibition concentration (MIC) was recorded for P. djamor, that is, 8.80 mm, 11.66 mm, and 9.04 mm, compared to P. ostreatus, which showed its highest MIC as 9.18 mm, 9.30 mm, and 9.28 mm for S. aureus, E. coli, and Xanthomonas, respectively. It was evident from the study that SMC has a potential of being utilized for bioremediation, as it is therapeutically active against pathogens. Additionally, Pleurotus spp. is of great interest because of its ability to produce high nutritive value, cellulose yield, and a vast amount of lignocellulosic enzymes. The current experiment recommends the use of distilled water for mushroom farming, as enzymatic activities can significantly be affected by pH and buffers. Furthermore, the spent compost, being rich nutritionally, can be used for soil enrichment or as a biofertilizer.

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Carposome productivity of Pleurotus ostreatus and Pleurotus eryngii growing on agro-industrial residues enriched with nitrogen, calcium salts and oils

Cited by 20 publications

References 110 publications

Application of Brewer Spent Grain from the Beer Industry as a Unique Substrate for the Cultivation of Pleurotus Ostreatus Mushrooms

Application of Brewer Spent Grain from the Beer Industry as a Unique Substrate for the Cultivation of Pleurotus Ostreatus Mushrooms

The Influence of Substrate and Strain on Protein Quality of Pleurotus ostreatus

A multifaceted analysis of spent mushroom substrate of selected oyster mushrooms for enzymatic activity, proximate composition, and antimicrobial activity

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