Phototrophic growth of Rubrivivax gelatinosus in poultry slaughterhouse wastewater

Ponsano, Elisa Helena Giglio; Paulino, Clariana Z.; Pinto, Marcos Franke

doi:10.1016/j.biortech.2007.06.063

Cited by 62 publications

(31 citation statements)

References 24 publications

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“…During freeze drying, substances are not exposed to high temperatures; therefore the freeze-dried products preserve their initial nutritious characteristics, and return to their original shape and texture instantaneously achieving long shelf life (BARUFFALDI; OLIVEIRA, 1998;PEREDA et al, 2005). This technique was used by ; Ponsano, Paulino and Pinto (2008) ;Pinto (2011) andSanto (2011) to dry R. gelatinosus biomass produced in industrial wastewater. On the other hand, spray drying technique consists of maximizing heat transfer, and it can be used for any product with a liquid-like behavior (BARUFFALDI; OLIVEIRA, 1998).…”

Section: Production and Drying Of Biomassmentioning

confidence: 99%

Comparison between freeze and spray drying to obtain powder Rubrivivax gelatinosus biomass

et al. 2013

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The use of colorants in products of animal origin is justified by the improvement in the color of foods since this attribute is considered a quality criterion. These additives can be produced using industrial effluents as substrates and appropriate organisms, such as Rubrivivax gelatinosus. Oxycarotenoids represent a class of carotenes responsible for the pigmentation of animals and vegetables. R. gelatinosus grows in fish industry effluent with the resulting production of a bacterial biomass containing oxycarotenoids. The purpose of this study was to compare the use of two drying processes - spray and freeze drying - to obtain powder biomass in terms of the process parameters (yield, productivity, and product recovery) and the product characteristics (color, proximate composition, and oxycarotenoids). No difference was detected in the yield between these techniques, while productivity was higher using spray drying. Higher product recovery and moisture were achieved with freeze drying, while ash was higher with spray drying. The freeze dried biomass was redder, darker and less saturated than the spray dried biomass. No difference in oxycarotenoids was detected between the biomasses. Although it results in lower recovery rate, spray drying was faster and more productive, and it provided the same yield as freeze drying, which makes it the method of choice for obtaining R. gelatinosus biomass.

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Section: Production and Drying Of Biomassmentioning

confidence: 99%

Comparison between freeze and spray drying to obtain powder Rubrivivax gelatinosus biomass

et al. 2013

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“…For that, cell suspensions (3.5 ml) were homogenized with 5 g sucrose and scanned from 200 to 1,000 nm (Hitachi U-1000/U-1100). Treated uninoculated wastewater added with 5 g sucrose was used as the blank (Ponsano et al 2008). Oxycarotenoids were extracted from dry biomass with acetone: methanol (7:3, v/v) and quantification was done at 448 nm (Hitachi U-1000/U-1100).…”

Section: Growth Curve Preparation and Analysesmentioning

confidence: 99%

“…Studies carried out with the bacterium in poultry slaughterhouse wastewaters showed that it can efficiently grow in that effluent, reducing organic matter and producing oxycarotenoids, without the need for supplementation (Ponsano et al 2003(Ponsano et al , 2008. The utilization of these oxycarotenoids as a pigmenting ingredient in poultries feed provided intensification of broilers carcasses and egg yolks coloration (Ponsano et al 2003(Ponsano et al , 2004a.…”

Section: Introductionmentioning

confidence: 97%

Cultivation of Rubrivivax gelatinosus in fish industry effluent for depollution and biomass production

Lima

Ponsano

Pinto

2011

World J Microbiol Biotechnol

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One application of biotechnology that contributes to sustainable development is the utilization of industrial byproducts as substrates for the production of substances of interest by microorganism. In this work, liquid effluent from tilapia fish processing was used as a substrate for the growth of Rubrivivax gelatinosus with the aim of studying the bacterial photo heterotrophic metabolism. Cultivation conditions included 32 ± 2°C, 1,400 ± 200 lux and 7 days. In the initial days, the best cell mass production (0.273 g l -1 with 72 h), specific growth rate (0.188 h -1 with 48 h) and chemical oxygen demand (COD) decrease (43% with 72 h) were reached. Typical bacterial oxycarotenoids were identified after 3 days of cultivation, averaging 3.03 mg g -1 biomass. Bacterial growth in the effluent during the period of study resulted in pH increase to 7.9, total nitrogen, oils and greases and COD decreases of 22.46, 47.71 and 52%, respectively, and dry cell mass production of 0.18 g l -1 . The bacterial growth in the wastewater provided biomass and oxycarotenoids and the removal of pollutant load.

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“…The blend among these pigments gives the bacterial cultures a reddish color (Ponsano et al, 2002a(Ponsano et al, , 2003a(Ponsano et al, , 2008) that remains in the dry biomass, since sensorial and nutritional properties of lyophilized products remain intact after drying process (Pereda et al, 2005). Considering that these pigments are oxycarotenoids and so have the ability to deposit in animal tissues, this feature of the biomass suggests its application as a pigmenting ingredient for the rearing of different animals.…”

Section: Physicochemical Parameter Quantitymentioning

confidence: 99%

From a Pollutant Byproduct to a Feed Ingredient

Ponsano¹,

Lima²,

Torres³

2011

Biomass - Detection, Production and Usage

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Phototrophic growth of Rubrivivax gelatinosus in poultry slaughterhouse wastewater

Cited by 62 publications

References 24 publications

Comparison between freeze and spray drying to obtain powder Rubrivivax gelatinosus biomass

Comparison between freeze and spray drying to obtain powder Rubrivivax gelatinosus biomass

Cultivation of Rubrivivax gelatinosus in fish industry effluent for depollution and biomass production

From a Pollutant Byproduct to a Feed Ingredient

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