Biotechnological solubilization of rock phosphate on media containing agro-industrial wastes

Vassilev, Nikolay

doi:10.1007/s00253-003-1318-3

Cited by 186 publications

(91 citation statements)

References 45 publications

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“…When bones or sludge from enhanced biological phosphorus removal (both have high level of phosphorus [3]) serves as a source of P in the cultivation of mircobes solubilizing P, additionally, organic form of carbon and other nutrients are supplied to the growth medium [30], making solubilizing process easier and more efficient. Biochar [31] or bones ash are other alternative sources of phosphorus, possible to use as raw material for fertilizers production in the case when microbes are utilized. Both of them are free of organic matter that can be used as a source of carbon for solubilizing phosphorus bacteria, but the content of P (P 2 O 5 ) is higher than in bone and sludge from EBFR [32].…”

Section: Mechanismmentioning

confidence: 99%

Valorization of Bones to Liquid Phosphorus Fertilizer by Microbial Solubilization

Saeid

Labuda

Chojnacka

et al. 2013

Waste Biomass Valor

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Problem of decreasing resources of phosphate rock for phosphorus fertilizers production, can be mitigated by biological degradation of low quality substrates, performed by bacterial species able to produce mineral and low molecular organic acids. It was found that Bacillus megaterium was able to solubilize phosphorus incorporated with organic matter-biogenic apatite-bones. Using the microbial treatment (by acids produced by microorganisms) it was possible to produce liquid phosphorus fertilizers. At the same time the problem with utilization of noxious wastes can be solved. Two materials were used: bones and phosphorite. Two times higher solubilization factor for bones were achieved when compare to phosphorite. It was possible to obtain the organic liquid fertilizer with the content of P 2 O 5 0.09 % (m/m). It is necessary to evaluate the utilitarian properties of obtained fertilizer in the germination test.

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Section: Mechanismmentioning

confidence: 99%

Valorization of Bones to Liquid Phosphorus Fertilizer by Microbial Solubilization

Saeid

Labuda

Chojnacka

et al. 2013

Waste Biomass Valor

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“…For this reason, it is necessary to apply high doses of soluble fertilizers to reach the necessary concentrations of P in the soil solution (Narsian and Patel, 2000;Vassilev et al, 2012). One problem of intensive agriculture is that the fertilizers applied are expensive and their efficiency is very low (Vassilev and Vassileva, 2003;Paiva-Coutinho et al, 2012), making it unsustainable. Because of this, there is a pressing need to identify sustainable alternatives that may allow for a more efficient use of P for cultivated plants (Consensus Statement Declaration, 2011).…”

Section: Introductionmentioning

confidence: 99%

In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS

Quevedo

Osório

Murillo³

2014

Acta biol. Colomb.

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The low availability of phosphorus (P) in the soil and the high cost of P fertilization are factors that limit agricultural productivity. A biotechnological alternative for to handle this problem is to use soil microorganisms capable of dissolving rock phosphate (RP), thus improving its effectiveness as a P fertilizer. This study was carried out with the objective of determining the effectiveness of Aspergillus niger -As-, Penicillium sp. -Pn-, Bacillus sp -B-. and an unidentified actinomycete -At-in the in vitro dissolution of two partially acidulated rock phosphates. The treatments consisted of 2x16 factorial arrangement [2 levels of RP: either Boyaca RP or Norte de Santander RP; 16 levels of inoculum: an uninoculated control, individual inoculations (with As, Pn, B, At), dual inoculations (AsPn, AsB, AsAt, PnB, PnAt, BAt), triple inoculations (AsPnB, AsPnAt, AsBAt, PnBAt), and quadruple inoculation (AsPnBAt)]. Each treatment was replicated three times. It was found that the microbial effectiveness in the in vitro dissolution of RP depended on the type of RP, the composition of the inoculum used and the interaction of both factors. The best results were obtained with the Norte de Santander RP and A. niger used alone. When this fungus combined with the other microorganisms, its capacity to dissolve RP was significantly reduced. Keywords: Aspergillus niger, Bacillus sp., biofertilizer, phosphate, Penicillium sp. RESUMENLa baja disponibilidad de fósforo (P) en el suelo y el costo de la fertilización fosfórica son limitantes para la productividad agrícola. Una alternativa biotecnológica para manejar este problema es mediante el uso de microorganismos del suelo capaces de disolver rocas fosfóricas (RP) y así mejorar su efectividad como fertilizante fosfórico. Con este fin se realizó un ensayo para determinar la efectividad microbial en la disolución in vitro de dos RP (Norte de Santander y Boyacá) parcialmente aciduladas. Los tratamientos consistieron en un arreglo factorial 2x16 [2 niveles de RP: Boyacá o Norte de Santander; 16 niveles de inóculo: Un control no inoculado, inóculos individuales (Aspergillus niger -As-, Penicillium sp. -Pn-, Bacillus sp. -B-, y un actinomiceto no identificado -At-), inóculos dobles (AsPn, AsB, AsAt, PnB, PnAt, BAt), inóculos triples (AsPnB, AsPnAt, AsBAt, PnBAt), e inóculos cuádruples (AsPnBAt)]. Cada tratamiento tuvo tres replicas. La efectividad en la disolución in vitro de RP fue dependiente del tipo de RP, tipo de inóculo y la interacción de ambos factores, teniendo mejores resultados con la RP del Norte de Santander y A. niger sólo. Cuando este hongo se combinó con otros microorganismos su capacidad para disolver RP se redujo significativamente.

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“…Depending on the soil condition and method of application, the wastage of conventional fertilizers with regard to plant nutrient uptake may reach up to 50% (Vassilev and Vassileva 2003;Entry and Sojka 2008). Most fertilizers contain watersoluble inorganic salts.…”

Section: Introductionmentioning

confidence: 99%

Characterisation and Biodegradation of Poly(Lactic Acid) Blended with Oil Palm Biomass and Fertiliser for Bioplastic Fertiliser Composites

Saffian¹,

Abdan²,

Hassan³

et al. 2016

BioResources

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This work presents a new technique for producing a slow-release fertiliser with bioplastic polymer coating. Poly(lactic acid) (PLA) was blended with granular NPK fertiliser and empty fruit bunch (EFB) fibres using extrusion technique. The polymer coatings were characterised using thermal gravimetric analyser (TGA) and diffraction scanning calorimetry (DSC). The PLA and EFB fibres complemented each other in terms of their thermal stability in the BpF composites. A homogenous BpF blend was observed under a scanning electron microscope (SEM). In biodegradation the percentages of weight loss for PLA/EFB/NPKC1 and PLA/EFB/NPKC2 were higher due to the presence of EFB fibres, which were 64.3% and 76.3%, respectively.

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Biotechnological solubilization of rock phosphate on media containing agro-industrial wastes

Cited by 186 publications

References 45 publications

Valorization of Bones to Liquid Phosphorus Fertilizer by Microbial Solubilization

Valorization of Bones to Liquid Phosphorus Fertilizer by Microbial Solubilization

In vitro DISSOLUTION OF ACIDULATED ROCK PHOSPHATE BY PHOSPHATE SOLUBILIZING MICROORGANISMS

Characterisation and Biodegradation of Poly(Lactic Acid) Blended with Oil Palm Biomass and Fertiliser for Bioplastic Fertiliser Composites

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