Utilization of microorganisms in the solubilization of low-quality phosphorus raw material

Wyciszkiewicz, Małgorzata; Saeid, Agnieszka; Dobrowolska−Iwanek, Justyna; Chojnacka, Katarzyna

doi:10.1016/j.ecoleng.2016.01.065

Cited by 31 publications

(33 citation statements)

References 16 publications

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“…The relationship between pH and the amount of released phosphates (Fig. (c)) (expressed as P 2 O 5 ) is consistent with previous findings . When the temperature is increased, increased activity of microorganisms is observed as well as decreased pH, whicht causes liberation of phosphates from the structure of hydroxyapatite of bones.…”

Section: Resultssupporting

confidence: 90%

“…The mechanism of microbial solubilization of phosphates from hydroxyapatite was recognized as an action of acids performed by microorganisms . Here the solubilization was performed by soil bacteria Bacillus megaterium able to produce small molecules of different organic acids causing a decrease of pH and the liberation of phosphates from the hydroxyapatite structure of bones. Slow, but continuous decrease of pH was observed (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…2(c)) (expressed as P 2 O 5 ) is consistent with previous findings. 17 When the temperature is increased, increased activity of microorganisms is observed as well as decreased pH, whicht causes liberation of phosphates from the structure of hydroxyapatite of bones. The biomass (bones) plays in this case the role of source of phosphates that can be solubilized by organic acids pH: y = 7.22 -0.0295x; r = -0.935; p = 0.0000; r 2 = 0.8738 mP2O5, g: y = 10.7 + 0.513x; r = 0.979; p = 0.000; r 2 = 0.958 (extraction with water) mP2O5, g: y = 56.1 + 1.40x; r = 0.985; p = 0.000; r 2 = 0.971 (extraction with citrate) 16 18 20 produced by bacteria, actively growing during the solubilization process.…”

Section: Resultsmentioning

confidence: 99%

See 2 more Smart Citations

Solid‐state solubilization of bones by B. megaterium in spent mushroom substrate as a medium for a phosphate enriched substrate

Wyciszkiewicz

Saeid

Samoraj

et al. 2016

J of Chemical Tech & Biotech

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BACKGROUND This paper details the results of solubilization of phosphates in spent mushroom substrate (SMS). As a substrate for the process, bones as a source of phosphates and SMS as medium were used. RESULTS The process was conducted for 9 months and at the end of the process the substrate obtained was characterized as having a two times higher amount of available phosphorus (express as P2O5), which was confirmed by FTIR and SEM‐EDX analysis. A decrease in pH was observed. Strong correlation was found between temperature and the effectiveness of the process (P=0.000, r = 0.772). Solubilization combined with the degradation process lowered the C/N ratio from 13.6:1 to 11.7:1. The utilitarian properties of the substrate obtained were evaluated in germination tests. CONCLUSION The substrate obtained was characterized as having two times more available phosphorus and can serve as a biofertilizer for the cultivation of plants. © 2016 Society of Chemical Industry

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Section: Resultssupporting

confidence: 90%

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Solid‐state solubilization of bones by B. megaterium in spent mushroom substrate as a medium for a phosphate enriched substrate

Wyciszkiewicz

Saeid

Samoraj

et al. 2016

J of Chemical Tech & Biotech

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“…These findings are consistent with previous findings performed in batch culture mode. The best result was obtained for fish bones and for lower dose, while the lowest SF was obtained for phosphorite .…”

Section: Resultsmentioning

confidence: 90%

“…It has been well known that, as a common strategy to scavenge phosphorus from insoluble mineral sources, bacteria produce and exudate organic acids and/or chelating agents into the growth medium . Moreover, it was reported that bacteria are producing different organic acids and its spectrum and concentration is strongly related with kind of phosphorus‐bearing source used in the solubilization . The kind of acids used as a leaching agent also influences the effectiveness of solubilization .…”

Section: Introductionmentioning

confidence: 99%

In situ solubilization of phosphorus‐bearing raw materials by Bacillus megaterium

Wyciszkiewicz

Saeid

Chojnacka

2017

Engineering in Life Sciences

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This paper presents the results of in situ studies on solubilization of different phosphorus-bearing raw materials by application of natural ability to produce organic acids by Bacillus megaterium. Poultry bones as well as fish bones were used as renewable sources of phosphates. Morocco phosphorite was used as nonrenewable sources of phosphates. Glass columns, filled with the soil mixed with different doses (1, 5, and 10%) of mentioned sources of phosphorus, were used as a medium for solubilization. It was found that the amount of released phosphorus (determined in the eluent and expressed as P 2 O 5 ) significantly increased in the cases of columns where B. megaterium was used, when compared with the control group (without microflora). Higher doses of phosphorus-bearing material used in the experiment influenced in the release of higher amount of phosphorus. The highest effectiveness of solubilization was found in the case of poultry bones. The experiment was repeated for poultry bones but with the supplementation of nutrients. It was found that the delivery of nutrients had a strong effect on the increase of effectiveness of solubilization. Two times higher amount of phosphorus (express as P 2 O 5 ) was released from the hydroxyapatite structure of bones. It was confirmed that poultry bones could serve as a source of phosphates in microbial solubilization performed in in situ.

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Microbes: A Sustainable Approach for Enhancing Nutrient Availability in Agricultural Soils

Sahu

Bhattacharjya

Mandal

et al. 2018

Role of Rhizospheric Microbes in Soil

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Utilization of microorganisms in the solubilization of low-quality phosphorus raw material

Cited by 31 publications

References 16 publications

Solid‐state solubilization of bones by B. megaterium in spent mushroom substrate as a medium for a phosphate enriched substrate

Solid‐state solubilization of bones by B. megaterium in spent mushroom substrate as a medium for a phosphate enriched substrate

In situ solubilization of phosphorus‐bearing raw materials by Bacillus megaterium

Microbes: A Sustainable Approach for Enhancing Nutrient Availability in Agricultural Soils

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