Papers by Keyword: Lipids

Abstract: There was studied the composition and the fatty acid content of the lipid fraction obtained by extraction the rice straw cultivar Lugovoi (Oryza sativa L.) by ethanol and chloroform solution in a 2:1 ration. It was found that the yield of lipids from the straw was ~ 9% from the weight of the dry sample. The main components of the lipid fraction are palmitic and oleic acids. The comparative analysis showed that the yield of fatty acids and their composition depends on the plant species and the type of feedstock.

Abstract: As the development of nanotechnology has extended to the world of biomolecules, a revolution has occurred in the design and assembly of nanomaterials for drug delivery with a significant potential to impact drug efficacy and patient outcomes. Currently a number of nanomaterials are under investigation for their suitability as sustained, controlled and targeted drug carriers. Leading edge of the rapidly developing nanosciences is the development and assessment of these nanomaterials, with specific physicochemical properties different from their larger/ bulk counterparts, as vehicles for transport of small and large drug molecules. The characteristics such as size, shape, chemical composition, surface structure and charge, aggregation and agglomeration, and solubility, can greatly influence interactions of these nanostructured systems or carriers with biomembranes and cells. The selectivity and reactivity achieved due to the very small size assigns these systems with a wide spectrum of applications. In this review, nanomaterials are considered in terms of the physical attributes or pharmaceutical effects allocated by them to the all-inclusive carrier or vehicle system (s). However we will limit our discussion to lipidic and polymeric nanomaterials, the two most commonly promoted, and safe nanosystems for delivery of both, the chemical or small molecular entities (SME) and the macromolecules including genes and siRNA.Contents of Paper

Abstract: The aim of this work was to find out the effects of exogenous enzymes on the fermentation period of fermented sausages. The results showed that the FFAs and NPN contents of the sausages added exogenous enzymes were 2.83 and 3.34 times than that of the samples without exogenous enzymes (CK) at fermenting 12 h, respectively. Thus, compared with the CK, the fermentation period could be reduced about 60% by adding 0.10% lipase, 0.01%% acidic protease and 0.015% flavor protease, and the quality of products were as good as CK.

Abstract: Hevea brasiliensis natural rubber (NR) latex is a very important commercial source of elastomers. It is not only a source for dry NR rubber but also the feedstock for the latex glove dipping industry. The particles of freshly tapped latex are known to be stabilized by proteins and lipids that come with the latex from the tree. These non-rubbers [, especially proteins and lipids, confer to the rubber and latex excellent properties unsurpassed by any synthetic latex [. Recent structural studies of NR revealed that the NR molecules comprise of 2 trans-isoprene units connected to a long-chain cis-isoprene units. Two terminal groups, referred to as ω and α, have been postulated to link with mono-and di-phosphate groups associated with phospholipids by H-bonding at the α-terminal, whereas the ω-terminal is a dimethylallyl group links to protein by H-bonding [. Although numerous studies have been published on the surface structure of the natural rubber particle [4-, none of these offered a direct in situ visualization of the intact particle surface. This is because of any attempt to remove this surface layer of proteins and lipids results in an immediate destabilization of the latex. The second part focused on the using of Atomic Force Microscopy (AFM) and Confocal Fluorescence microscopy to visualize and delineate the structure of the proteins and lipids layer on the latex particle surface in situ.