Separation of lipids

Part 1 book "Seafood processing" includes content: Introduction to seafood processing by products; trends in the use of seafood processing by products in Europe; prospective utilization of fishery by products in Indonesia; development of functional materials from seafood by products by membrane separation technology; processing and characterization of salt - fermented fish (jeotgal) using seafood by products in Korea; isoelectric solubilization precipitation as a means to recover protein and lipids from seafood by products,... and other contents.

317p muasambanhan01 13-12-2023 7 3   Download

Lipid oxidation is one of the major causes of food spoilage for lipid-rich foods. In particular, oil-in-water emulsions, like mayonnaises and spreads, are prone to oxidation due to the increased interfacial area that facilitates contact between the lipids and hydrophilic pro-oxidants present in the water phase. Polar, amphiphilic lipid species present at the oil/water interface, like the mono- (MAGs) and di-acylglycerols (DAGs).

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There is a great need for efficient analysis of the composition of vegetable oils and fats, since it affects the physical and technical properties. However, due to the complex nature of these kind of samples, it is often difficult and costly. In the present study, we developed a Non-Aqueous Reversed-Phase HPLC method that can be used to separate and quantify different free fatty acids, fatty acid esters, monoacylglycerides.

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The effectiveness of adding sesame and sunflower meal acetone extracts to stabilize refined soybean oil (RSO) was investigated for 120 days at 50 °C. Sesame and sunflower meal acetone extracts were separately added at varying concentrations (500 ppm to 2000 ppm) to RSO. To compare their antioxidant activity, RSO was also supplemented with tertiary butylated hydroxy quinone (TBHQ) and propyl gallate (PG) at 200 ppm concentration.

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The taxa of the genus Euphorbia L. have seeds that mature in schizocarp fruits, called cocci, with three or more cells, each of which explosively splits open into separate parts at maturity. The Euphorbia seeds have taxonomically useful characters.

9p vikimsa 22-02-2019 20 1   Download

Bacteroides vulgatus has been shown to be involved in the aggravation of colitis. Previously, we separated two potent virulence factors, capsular polysaccharide (CPS) and lipopolysaccharide (LPS), from a clinical isolate of B. vulgatus and characterized the structure of CPS. In this study, we elucidated the structures of O-antigen polysaccharide (OPS) and lipid A in the LPS. LPS was subjected to weak acid hydrolysis to produce the lipid A fraction and polysaccharide fraction.

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We isolated a cholesterol-enriched membrane subpopulation from the so-called lipid raft fractions of Jurkat T-cells by taking advantage of its selective binding to a cholesterol-binding probe, BCh. The BCh-bound mem-brane subpopulation has a much higher cholesterol⁄phospholipid (C⁄P) molar ratio (
1.0) than the BCh-unbound population in raft fractions (
0.3). It contains not only the raft markers GM1 and flotillin, but also some T-cell receptor (TCR) signalling molecules, including Lck, Fyn and LAT. ...

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PLANT CELLS ARE SEPARATED from their environment by a plasma membrane that is only two lipid molecules thick. This thin layer separates a relatively constant internal environment from highly variable external surroundings. In addition to forming a hydrophobic barrier to diffusion, the membrane must facilitate and continuously regulate the inward and outward traffic of selected molecules and ions as the cell takes up nutrients, exports wastes, and regulates its turgor pressure.

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We have cloned and determined the nucleotide sequence of the cDNAcoding for a cellular retinol-bindingprotein type I (CRBPI)from zebrafish. The deduced amino acid sequence of the zebrafish CRBPI showed highest sequence identity (
59%)to the mammalian CRBPIs of the intracellular lipid-binding protein (iLBP)multigene family. Phylogenetic analysis clustered the zebrafish CRBPI to the CRBPI clade. The zebrafish CRBPI gene (rbp1)and CRBPII gene (rbp2) both consist of four exons separated by three introns, iden-tical to all otheriLBP genes in vertebrates....

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This book has been made possible by the contributions of leading scientists and clinicians from upcoming and interdisciplinary fields of research concerning the molecular and clinical features of insulin resistance. Multiple metabolic disturbances associated with Insulin Resistance include inflammatory cytokines, adipokines, endothelial dysfunction, tissue-specific defects in insulin action and signaling, oxidative stress, ectopic lipid deposition, and disordered neuroregulation.

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To begin, at the left of the figure, trends in risk factors or biological markers such as cholesterol and other lipids, weight, and indicators of insulin regulation are separate markers of underlying health and population propensity to disease. At the population level, the age of onset of these factors generally precedes the onset of related diseases like cardiovascular disease and diabetes. The second box includes diseases, conditions, and impairments.

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Introduction: Small amount of drugs and poisons incorporated into human bodies are hidden among large amounts of biological components, such as proteins, lipids, nucleic acids and membranes. It is not easy to detect only a target compound from such complicated matrices. Before instrumental analysis, extraction procedure is usually essential and very important.

7p bigbaby87 01-09-2010 148 29   Download