Effect of Calcinated Oyster Shell Powder on Growth, Yield, Spawn Run, and Primordial Formation of King Oyster Mushroom (Pleurotus Eryngii)

Choi, Ung-Kyu; Lee, Ok‐Hwan; Kim, Young-Chan

doi:10.3390/molecules16032313

Cited by 19 publications

(20 citation statements)

References 14 publications

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“…Recently farmers have been searching for an alternative substrate that may be more readily available and more cost effective or that may provide higher yields and better mushroom quality [ 9 ]. The oyster shell is not only good calcium enriched natural products but also a freely available waste [ 10 ].…”

Section: Introductionmentioning

confidence: 99%

Differential Response of Oyster Shell Powder on Enzyme Profile and Nutritional Value of Oyster MushroomPleurotus floridaPF05

Naraian

Narayan

Srivastava

2014

BioMed Research International

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Oyster mushroom Pleurotus florida was cultivated on different combinations of wheat straw (WS) as basal substrate and oyster shell powder (OSP) supplement. The OSP supplementation considerably responded to different cultivation phases. The mycelium grew fast and showed rapid growth rate (8.91 mmd−1) in WS + OSP (97 + 3) combination while WS + OSP (92 + 8) showed maximum laccase (3.133 U/g) and Mn peroxidase (MnP) activities (0.091 U/g). The climax level of laccase (5.433 U/g) and MnP (0.097 U/g) was recorded during fruit body initiation in WS + OSP (97 + 3) and WS + OSP (98 + 2) combinations, respectively. The WS + OSP (97 + 3) combination represented the best condition for mushroom cultivation and produced the highest biological efficiency (147%). In addition, protein and lipid contents in fruit bodies were slightly improved in response to OSP. The carbohydrate was significantly increased by raising concentration of OSP. The highest values of protein, carbohydrate, and lipid noted were 31.3 μg/g, 0.0639 (g/g), and 0.373 (g/g) correspondingly. Conclusively it was evident that lower concentrations of OSP acted positively and relatively to higher concentrations and improved nutritional content which may suitably be used to enhance both yield and nutritional values of mushroom.

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Section: Introductionmentioning

confidence: 99%

Differential Response of Oyster Shell Powder on Enzyme Profile and Nutritional Value of Oyster MushroomPleurotus floridaPF05

Naraian

Narayan

Srivastava

2014

BioMed Research International

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“…The results were similar with other studies that used sawdust supplemented with different additives, substrate capacity utilization values not exceeding 50% (Estrada et al, 2009). Also, previous studies have demonstrated that can be obtained fruit bodies with high nutritional value by increasing the level of calcium in the substrate (Choi et al, 2011).…”

Section: Resultsmentioning

confidence: 99%

Productivity and Biological Efficiency of Pleurotus eryngii MMIV Cultivation at Laboratory Level

Angelescu¹,

Vamanu²,

Stefan³

et al. 2015

J. of Agronomy

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A B S T R A C TThe purpose of the study was the identification of competitive substrate formulas to sustain Pleurotus eryngii cultivation, in Romania, in order to recover some cellulolytic wastes easy to procure in rural areas. The experiments conducted in a laboratory greenhouse followed the basidioma size, the productivity and the biological efficiency to use the substrate. Following the addition of rice breach and pumpkin seed husk in beech sawdust, were obtained the highest values, in average by one third higher as against the hay addition values. Although, it favored the fructification, it couldn't sustain a proper productivity that led to a scanty spawn maturation.

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“…OSP ( MundoVerde ®) was produced from calcined oyster shells (650°C) and triturated to a particle size of ≤ 1.0 mm. The major component of the OSP at calcinations temperature has been found to be CaCO 3 according to Choi et al [42]. …”

Section: Methodsmentioning

confidence: 99%

Preliminary assessment of the performance of oyster shells and chitin materials as adsorbents in the removal of saxitoxin in aqueous solutions

Melegari¹,

Matias

2012

Chemistry Central Journal

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BackgroundThis study evaluated the adsorption capacity of the natural materials chitin and oyster shell powder (OSP) in the removal of saxitoxin (STX) from water. Simplified reactors of adsorption were prepared containing 200 mg of adsorbents and known concentrations of STX in solutions with pH 5.0 or 7.0, and these solutions were incubated at 25°C with an orbital shaker at 200 RPM. The adsorption isotherms were evaluated within 48 hours, with the results indicating a decrease in STX concentrations in different solutions (2–16 μg/L). The kinetics of adsorption was evaluated at different contact times (0–4320 min) with a decrease in STX concentrations (initial concentration of 10 μg/L). The sampling fractions were filtered through a membrane (0.20 μm) and analyzed with high performance liquid chromatography to quantify the STX concentration remaining in solution.ResultsChitin and OSP were found to be efficient adsorbents with a high capacity to remove STX from aqueous solutions within the concentration limits evaluated (> 50% over 18 h). The rate of STX removal for both adsorbents decreased with contact time, which was likely due to the saturation of the adsorbing sites and suggested that the adsorption occurred through ion exchange mechanisms. Our results also indicated that the adsorption equilibrium was influenced by pH and was not favored under acidic conditions.ConclusionsThe results of this study demonstrate the possibility of using these two materials in the treatment of drinking water contaminated with STX. The characteristics of chitin and OSP were consistent with the classical adsorption models of linear and Freundlich isotherms. Kinetic and thermodynamic evaluations revealed that the adsorption process was spontaneous (ΔGads < 0) and favorable and followed pseudo-second-order kinetics.

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Effect of Calcinated Oyster Shell Powder on Growth, Yield, Spawn Run, and Primordial Formation of King Oyster Mushroom (Pleurotus Eryngii)

Cited by 19 publications

References 14 publications

Differential Response of Oyster Shell Powder on Enzyme Profile and Nutritional Value of Oyster MushroomPleurotus floridaPF05

Differential Response of Oyster Shell Powder on Enzyme Profile and Nutritional Value of Oyster MushroomPleurotus floridaPF05

Productivity and Biological Efficiency of Pleurotus eryngii MMIV Cultivation at Laboratory Level

Preliminary assessment of the performance of oyster shells and chitin materials as adsorbents in the removal of saxitoxin in aqueous solutions

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