Biosorption of Cr(III) by Microalgae and Macroalgae: Equilibrium of the Process

Michalak, Izabela; Zielińska, Agnieszka; Chojnacka, Katarzyna; Matuła, Jan

doi:10.3844/ajabssp.2007.284.290

Cited by 35 publications

(18 citation statements)

References 31 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The solutions were prepared by dissolving appropriate amounts of CuSO 4 ·5H 2 O admitted for using as a source of Cu(II), Fe(II) and Zn(II) in animal diets (from POCH, Gliwice, Poland) (Feeding Standards for Poultry and Swine 2005). The contact time was 2 h as determined previously in kinetic experiments (Michalak et al 2007). After this time, enriched biomass was separated on a 6-μm pore size filter, dried at 50 °C and ground.…”

Section: Methodsmentioning

confidence: 99%

Effect on supplementation of Spirulina maxima enriched with Cu on production performance, metabolical and physiological parameters in fattening pigs

et al. 2013

View full text Add to dashboard Cite

In this paper, the effect of addition of the biomass of Spirulina maxima enriched with copper (Sm-Cu) to the animal feed is discussed. The biomass was cultivated in the photobioreactor with the capacity of 10 m3. After the biosorption process, the enriched biomass was investigated as the source of valuable nutrients. The feeding experiment was conducted for 87 days. The study was performed in individual rearing pens, with controlled microclimate, feed and water were available semi-ad libitum. Piglets (24) were divided into two groups (control and experimental). The experimental group was fed with addition of the biomass of Sm-Cu instead of inorganic salts. There were no statistically significant differences between the average daily and periodic weight gain, daily and periodic feed collection, as well as feed conversion ratio. There were no statistically significant differences between the amount of N excreted in faeces and urine, when considering the retention of N, both in relation to the consumed N, and relative N digested which was at a similar level. In the experimental group in comparison to the control group, the lower low-density lipoprotein cholesterol by 17.05 % (P < 0.05) and total cholesterol by 9.43 % (P < 0.05) were observed. Additionally, the increase of parameter a* of 13 % (P < 0.05) and the reduction of the natural leakage by 34 % (P < 0.05) were found.

show abstract

Section: Methodsmentioning

confidence: 99%

Effect on supplementation of Spirulina maxima enriched with Cu on production performance, metabolical and physiological parameters in fattening pigs

et al. 2013

View full text Add to dashboard Cite

show abstract

“…The solutions were prepared by dissolving appropriate amounts of inorganic salt CuSO 4 ·5H 2 O admitted for using as a source of Cu(II) in animal diets (from POCH, Gliwice, Poland) (Feeding Standards for Poultry and Swine 2005). The contact time was 2 h as determined previously in kinetic experiments (Michalak et al 2007). After this time, enriched biomass was separated on a filter with 6 μm pore diameter, dried at 50 °C and ground.…”

Section: Methodsmentioning

confidence: 99%

Biomass of Spirulina maxima enriched by biosorption process as a new feed supplement for swine

et al. 2012

View full text Add to dashboard Cite

This paper deals with the new mineral feed additives with Cu produced in a biosorption process from a semi-technical scale. The natural biomass of edible microalga Spirulina sp. was enriched with Cu(II) and then used as a mineral supplement in feeding experiments on swine to assess its nutrition properties. A total of 24 piglets divided into two groups (control and experimental) were used to determine the bioavailability of a new generation of mineral feed additives based on Spirulina maxima. The control group was feed using traditional inorganic supplements of microelements, while the experimental group was fed with the feed containing the biomass of S. maxima enriched with Cu by biosorption. The apparent absorption was 30 % (P < 0.05) higher in the experimental group. No effect on the production results (average daily feed intake, average daily gain, feed conversion ratio) was detected. It was found that copper concentration in feces in the experimental group was 60 % (P < 0.05) lower than in the control group. The new preparation—a dietary supplement with microelements produced by biosorption based on biomass of microalgae S. maxima—is a promising alternative to currently used inorganic salts as the source of nutritionally important microelements.

show abstract

“…Introduction of new generation of mineral feed additives based of microalgal biomass in terms of sustainable agriculture is promising [30] . However, it is necessary to take into account all steps of the production process and to introduce proecological solutions that will reduce environmental impact of the production.…”

Section: Resultsmentioning

confidence: 99%

Sustainable Production Process of Biological Mineral Feed Additives

Zielińska¹,

Chojnacka²,

Simonič³

2009

American J. of Applied Sciences

Self Cite

View full text Add to dashboard Cite

Problem statement:This study discussed the problem of accumulation of Zn and Cu in the topsoil as a result of application of mineral feed additives that possess low bioavailability in animal diet. The review considered the production process of mineral feed additives in which a product supplies microelements in highly bioavailable form. Enrichment of natural biomass of edible microalgae with microelement metal ions, which supply microelements of feeding significance in livestock diet, is considered in term of sustainable production. Approach: Production of microalgaederived products as mineral feed additives requires elaboration of the processes for cultivation of alga, enrichment process and afterwards recovery of the enriched biomass from the solution to obtain liquid free of cells that could be reused in the next process. In this study membrane bioreactor was considered as a method for separation, both in photobioreactor (growth of microorganism) as well as in the enrichment process. Results: Effort involved in thermal and chemical separation techniques is higher than that in mechanical techniques. Membrane bioreactors which are usually applied to treat wastewater, both industrial and domestic. This study discussed method to separate a valuable biomass of enriched microalgae and reuse the solution with residual metal ions that can be used once again in the subsequent biosorption process. Conclusion/Recommendation: Taking into consideration care about the environment it is better to apply membrane modules in the production process in terms of sustainable production. The proposed solution assumed the application of membrane modules as a separation step after enrichment process and biomass recovery.

show abstract

Biosorption of Cr(III) by Microalgae and Macroalgae: Equilibrium of the Process

Cited by 35 publications

References 31 publications

Effect on supplementation of Spirulina maxima enriched with Cu on production performance, metabolical and physiological parameters in fattening pigs

Effect on supplementation of Spirulina maxima enriched with Cu on production performance, metabolical and physiological parameters in fattening pigs

Biomass of Spirulina maxima enriched by biosorption process as a new feed supplement for swine

Sustainable Production Process of Biological Mineral Feed Additives

Contact Info

Product

Resources

About