The Biomass of Algae and Algal Extracts in Agricultural Production

Fertilizers and plant growth regulators (PGRs) based on seaweeds are commonly known, having been produced and utilized for dozens of years. Algae are rich in carbohydrates, proteins, minerals and chemical compounds that belong mainly to the following groups: polysaccharides, polyphenols, phlorotannins, plant pigments, unsaturated fatty acids, sterols and plant hormones.

Approaches To The Identification And Assay Of Flavonoids In Bee Bread Extracts By Spectrophotometric Method

Isolation and determination of phenolic compounds from freshwater Cladophora glomerata

Abstract Marine algae biomass has gained widespread interest in the world of science and many industries. The growing number of publications proves that these algae are an interesting and essential natural resource. This interest is due to the presence of a variety of biologically active compounds that give algae extracts a broad spectrum of biological and functional properties. However, there is little data on the chemical composition of algae obtained from freshwater. This work focuses on the isolation and determination of phenolic compounds from freshwater algae of the species Cladophora glomerata. Different types of extraction and extractants were used to isolate these bioactive compoun…

Algae and Their Extracts in Medical Treatment

Scientific efforts undertaken in recent decades have undoubtedly proven that algae are an inestimable and, what is more, important renewable source of hundreds of chemical compounds characterized by a wide spectrum of biological activity. Polysaccharides, phenolic compounds and their derivatives, pigments, proteins, lipids, and fatty acids are the substances that can be isolated from seaweeds, possessing antimicrobial, antiviral, antifungal, antilipidemic, antitumor, antidiabetic, anticoagulant, antioxidant, and antiallergic properties, which can be successfully utilized for human needs. The majority of attention has been focused on marine polysaccharides and their application in medicine a…

Chemical transformations of glucose in solutions for peritoneal dialysis after sterilization and during storage

The objective of this work was to estimate glucose degradation products (GDPs) in solutions for peritoneal dialysis (PD) including glucose and sodium lactate based on the change of pH and absorption of ultraviolet (UV) light. Spectrophotometric and pH-metric methods were used to measure glucose degradation and transformation of GDPs in laboratory-made solutions after heat sterilization and during storage. Mechanism of transformations of GDPs in the sterilized solutions for PD during storage and spectral characteristic of 5-HMF were studied. Common features for all the batches of the tested solutions for PD after heat sterilization were a reduce in pH, increase in the absorbance in the range…

Valuable natural products from marine and freshwater macroalgae obtained from supercritical fluid extracts

The biologically active compounds (fatty acids, pigments, phenolics, and flavonoid content) were studied in supercritical fluid extracts from the biomass of marine (Ulva clathrata, Cladophora glomerata, Polysiphonia fucoides, and their multi-species mixture) and freshwater (C. glomerata) macroalgae. Different extraction techniques were used in order to compare differences in the biologically active compound composition of the macroalgal extracts. The results indicated that the saturated and unsaturated fatty acids ranged from C9:0 to C22:0. The analysis of differences in the composition of unsaturated to saturated fatty acids in extracts showed that palmitic acid (C16:0) and oleic acid (C18…