Biomass of freshwater Cladophora as a raw material for agriculture and the cosmetic industry

Abstract

This study was undertaken to determine mineral content, amino acid and fatty acid composition of the freshwater macroalga -Cladophora glomerata. The studies were based on the content comparison in algal biomass collected from a lake and cultured in a laboratory. To determine the ability of copper cumulating by macroalgae, Cladophora was cultured in the medium supplemented with Cu ions. This study indicated that the relative abundance of metals in filaments decreased in the following order: Ca > K > Mg > Na > Fe > Cu > Zn > Pb > As > Ni > Cd > Mn > Cr > Co. Total protein content ranged from 14.45% in Cladophora from a lake to 26.55% in Cladophora from a laboratory. The main amino acids analyzed were aspartic and glutamic acid. The fatty acid content in the dry matter of the extract varied depending on the extraction method used: ethylene alcohol (19.0%), acetone (34.5%) or supercritical fluid extraction (62.5%). Freshwater C. glomerata due to the macrominerals, trace elements, amino and fatty acids composition in the extracts can be a valuable resource for nutritional and cosmetic applications.

Biofortification of Hens Eggs with Polyunsaturated Fatty Acids by New Dietary Formulation: Supercritical Microalgal Extract

“…The FAs can be mainly extracted from algal biomass using Soxhlet apparatus with organic solvent or SFE-CO 2 as a solvent [29][30][31]. It was noticed that SFE favored isolation of saturated and unsaturated fatty acids when compared to traditional extraction techniques with the use of organic solvents.…”

“…It was noticed that SFE favored isolation of saturated and unsaturated fatty acids when compared to traditional extraction techniques with the use of organic solvents. Many studies showed that SFE is characterized by a higher efficiency of extraction of biologically active substances from a natural source when compared to other extraction techniques [31,32]. Table 3 presents the percentage weight of FA in dry matter of the samples that were used in laying hens feeding, i.e., microalga Spirulina platensis, formulation of SC-extract from S. platensis, post-extraction residue of S. platensis, and the formulation that was used to prepare the application form of supercritical extract.…”

EU Project of Life Programme “Algae Service for Life” Creates Tools for Ecological Service to Mitigate Cyanobacteria and Macroalgae Blooms in Freshwater Ecosystems

“…creating a buffer zone, sediment dredging, application of algaecides) to prevent load of nutrients from agricultural lands into water bodies (weissteiner et al, 2013;iBisch et al, 2016;DonDaJewsKa et al, 2019). Prototypes for freshwater wild algal and cyanobacteria bio-mass harvesting have not been yet widely applied and only a few demonstrative practices usually excluding clear estimation of ecological and economic benefits have been provided worldwide (adey et al, 1993;water Facts, 1998;carMichael et al, 2000;GrönDahl, 2009;pechsiri et al, 2014;Messyasz et al, 2015;Pikosz et al, 2017). Nevertheless, several commercially available mechanical harvesters exist nowadays (Fig.…”

“…Massive growth of macroalgae or cyanobacteria is the first sign that the water body has been affected. Extensive development of macroscopic algae in freshwaters creates the environmental and social problems in aquatic ecosystems due to formation of spatially large mats (Messyasz et al, 2015(Messyasz et al, , 2018. They can choke water body, clog irrigation pipes,…”

Renewable sources: applications in personal care formulations

“…However, as it was shown, supercritical fluid extraction (SPE) with carbon dioxide which is considered as a ‘green solvent’ can be more efficient in the extraction of biologically active compounds than conventional techniques. The fatty acid content in the dry matter of the extract obtained from freshwater Cladophora glomerata varied depending on the extraction method used: ethylene alcohol (19%), acetone (35%) or SPE (63%) . Schroeder et al .…”