DBPapers
DOI: 10.5593/sgem2017/61/S25.104

MARINE ALGAE BIOMASS AS A USEFUL RESOURCE IN GREEN FERTILIZATION

T. Negreanu-Pirjol, B.S. Negreanu-Pirjol, E. Gorun, B. Nitu, M. Nastac
Tuesday 12 September 2017 by Libadmin2017

References: 17th International Multidisciplinary Scientific GeoConference SGEM 2017, www.sgem.org, SGEM2017 Conference Proceedings, ISBN 978-619-7408-12-6 / ISSN 1314-2704, 29 June - 5 July, 2017, Vol. 17, Issue 61, 797-806 pp, DOI: 10.5593/sgem2017/61/S25.104

ABSTRACT

The literature mentions that marine algae biomass is an important resource of mineral elements, polysaccharides (agar-agar, alginats), proteins and vitamins. The superior valorification of this biomass represents a highly important resource for the pharmaceutical industry, textile and dyes industry, nutrition industry and for soil fertilization. At the Romanian Black Sea Coast the macro-algae biomass envelopment is reported mainly in summer and is registered especially by the green macro-algae group; thus the largest deposits occur ashore after periods of storm especially, but also after bottom movement, when a large area of shallow coastline is "shaved" of vegetal carpet. Most macrophytes algae from the Romanian littoral are seasonal species, typical for cold season being red algae species, Bangia, Porphyra and Ectocarpus. Dasya and Chondria species are typical for the summer season. The main macrophyte algae, specific for Romanian Black Sea Coast, present in all associations succeeding in the year, belong to Chlorophyta sp., Pheophyta sp. and Rhodophyta sp., known as green algae Cladophora vagabunda (L.) Hoek., Enteromorpha intestinalis (L.) Link, Ulva lactuca Ag. (syn. Ulva lactuca L.), brown algae - Cystoseira barbata (Good et Wood) Ag. and red algae - Ceramium rubrum (Huds). In this paper we present a comparative study of minerals content correlate with microbial charge of some green algae, such as Ulva lactuca, Cladophora vagabunda and Enteromorpha intestinalis in the aim to present their fertilization potential. The presence of pathogens strains TNG, Escherichia coli, Salmonella sp., Staphylococcus sp., Pseudomonas aeruginosa and different species of fungi have been emphasized. The microbiological charge indicated that the algae biomass collected from the seaside area of the Black Sea is not contaminated with enteric pathogenic agents that could jeopardize its proposed use as potential nutrient and widens the possibility of improvement this natural resources as “green” fertilizer.

Keywords: marine biomass, microbiological charge, green fertilization