Effect of carbon, nitrogen and mineral sources on growth of Psathyerella atroumbonata (Pegler), a Nigerian edible mushroom

Jonathan, Segun Gbolagade; Fasidi, I. O.

doi:10.1016/s0308-8146(00)00265-x

Cited by 76 publications

(63 citation statements)

References 6 publications

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“…A significant growth of Psathyrella atroumbonata was obtained when it was used malt extract and L-triptofano while in the medium with sodium nitrate and ammonium sulphate the mycelial production presented the worst result. The stimulating effect of the two organic sources can be attributed to their carbon and nitrogen content (12). Despite the fact that both the malt extract and the corn juice are used as nitrogen sources, they are also carbon sources.…”

Section: Influence Of the Carbon And Nitrogen Sources On The Growth Omentioning

confidence: 99%

“…On the other hand, the growth kinetics and the fungal morphology in broth fermentation are highly dependent on the culture conditions, such as carbon sources, C/N relation, initial pH and temperature, agitation intensity and aeration rate (20). A large amount of work has reported the effects of environmental parameters on the biomass concentration and on the yield of bioactive compounds by mushroom, but those researches are limited to few kinds of mushrooms (4,7,10,12,13,20,25).…”

Section: Introductionmentioning

confidence: 99%

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Submerged culture conditions for the production of mycelial biomass and antimicrobial metabolites by Polyporus tricholoma Mont.

Vieira¹,

Liebl²,

Tavares³

et al. 2008

Braz. J. Microbiol.

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Basidiomycete fungi of the Polyporus genus are a source of secondary metabolites which are of medicinal interest as antibacterial compounds. As these substances are produced in a small amount by the fungi, the study of the cultivation conditions in vitro that could possibly optimize their production seems of major importance. The effects of glucose and lactose, pH and agitation on biomass concentration and on the specific growth rate caused by the basidiomycete Polyporus tricholoma were investigated. The initial pH (4.5, 6.5 and 8.5) was autoregulated at pH 5.5, and the agitation increased the mycelial growth and the specific growth rate. The high concentration of carbon sources (4%) increased biomass production. The lactose concentration and the absence of agitation were determinant in the production of antibacterial metabolites. The characterization of the antibacterial substance by GC-MS indicated a major compound, isodrimenediol, produced by the fungus Polyporus tricholoma with activity against Staphylococcus aureus.

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Section: Influence Of the Carbon And Nitrogen Sources On The Growth Omentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Submerged culture conditions for the production of mycelial biomass and antimicrobial metabolites by Polyporus tricholoma Mont.

Vieira¹,

Liebl²,

Tavares³

et al. 2008

Braz. J. Microbiol.

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“…Sing. (Fasidi & Akwakwa, 1996), Psathyerella atroumbonata (Pegler) (Jonathan & Fasidi, 2001), Lentinus subnudus (Berk.) (Gbolagade, Fasidi, Ajayi, & Sobowale, 2006), Chinese species Pleurotus tuber-regium (Fr.)…”

Section: Introductionmentioning

confidence: 99%

Bioactive properties of the medicinal mushroom Leucopaxillus giganteus mycelium obtained in the presence of different nitrogen sources

et al. 2007

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Leucopaxillus mushroom species are used in the chemical industry for extraction of clitocybin antibiotic and particularly the edible mushroom Leucopaxillus giganteus can be found in Northeast Portugal. Nevertheless, the production of its mycelium for pharmacological applications has not been explored. Herein, the mycelium obtained in the presence of four different nitrogen sources was investigated with regard to phenol production and antimicrobial and antioxidant properties. Phenol concentration increased along the growth time as a response to the oxidative stress and therefore free radical production. Although significant differences for mycelium growth between the nitrogen sources had not been observed, (NH 4 ) 2 HPO 4 proved to be the most appropriate to increase bioactive properties, leading to the highest phenol content and lowest EC 50 and MIC values. The antimicrobial capacity was screened against Gram positive and Gram negative bacteria, and fungi. The samples selectively inhibited the growth of Gram positive bacteria, Staphylococcus aureus being the most susceptible one. Gram negative bacteria and fungi were resistant to the extracts. Antioxidant activity was calculated by the reducing power assay, the scavenging effect on DPPH radicals, and hemolysis and lipid peroxidation inhibition. Significantly negative linear regressions were established between phenols/flavonoids contents, which increased along the mycelia growth time and antioxidant activity.

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“…This is consistent with the results obtained with L. quieticolor, which although it produced the greatest amount of biomass in glucose, when it was cultivated in mannitol the amount of biomass was high. Glucose is a carbon source that is easily metabolized by most microorganisms, incorporating it into their metabolism for the rapid production of energy for cell processes (Deacon, 2006;Jonathan and Fasidi, 2001). Ectomycorrhizal fungi transform sugars produced and obtained from plants into mannitol or trehalose to incorporate them into their metabolism (Smith and Read, 2008).…”

Section: Tricholoma Anatolicum Hh Doğan and Intini Andmentioning

confidence: 99%

“…Most fungi are mesophilic, which commonly grow in a temperature range between10 and 40°C (Jonathan and Fasidi, 2001), and most ectomycorrhizal fungi are in this group. Within the growth temperature range, different degrees of tolerance can be observed, and often the increase in temperature can cause a decrease in fungal growth and sometimes the total cessation (Srinivasan et al, 2000).…”

Section: Tricholoma Anatolicum Hh Doğan and Intini Andmentioning

confidence: 99%

Optimization of Biomass Production of Two Ectomycorrhizal Fungi (Lactarius quieticolor and Rhizopogon roseolus) for the Future Pinus radiata Nursery Inoculation

Chávez¹,

Machuca²,

Aguirre³

2017

Int.J.Curr.Res.Aca.Rev.

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Article InfoThe growing interest in mycelial biomass for its application in nurseries has led to the creation of inoculum production programs in New Zealand, Australia, the United States, and Chile, where the advantages of mycorrhizal inoculation have been demonstrated in plant morphological and physiological parameters. However, the mycelial biomass yields produced with these fungi through traditional submerged culture are generally low. Therefore, the aim of this study was to optimize the variables pH, temperature, and carbon source concentration required for maximum biomass production by the ectomycorrhizal fungi L. quieticolor and R. roseolus in liquid culture medium. The Box-Behnken (BB) design and response surface methodology (RSM) were used to establish the optimal conditions in the experimental area. Increases in biomass production of 1.2 g L -1 for 3.25 g L -1 for L. quieticolor (pH 5.5, 24°C and 20 g L -1 glucose) and 3.02 for 8.6 g L -1 for R. roseolus(pH 5.5, 28°C and 30 g L -1 mannitol) were found in comparison to the control culture (pH 5.5, 24°C and 10 g L -1 glucose) for both fungi. This optimization is the first step required to scale biomass production by L. quieticolor and R. roseolus in bioreactors.

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Effect of carbon, nitrogen and mineral sources on growth of Psathyerella atroumbonata (Pegler), a Nigerian edible mushroom

Cited by 76 publications

References 6 publications

Submerged culture conditions for the production of mycelial biomass and antimicrobial metabolites by Polyporus tricholoma Mont.

Submerged culture conditions for the production of mycelial biomass and antimicrobial metabolites by Polyporus tricholoma Mont.

Bioactive properties of the medicinal mushroom Leucopaxillus giganteus mycelium obtained in the presence of different nitrogen sources

Optimization of Biomass Production of Two Ectomycorrhizal Fungi (Lactarius quieticolor and Rhizopogon roseolus) for the Future Pinus radiata Nursery Inoculation

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