Essays about: "sterols"

Showing result 1 - 5 of 6 essays containing the word sterols.

1. 1. AN ASSESSMENT OF CHEMICAL TRACERS FOR TRACKING FECAL CONTAMINATION OF WATER SOURCES AND HOW THEY CAN BE APPLIED TO OLIGOTROPHIC WATER BODIES

   University essay from Mittuniversitetet/Institutionen för kvalitets- och maskinteknik

   Author : Munyaradzi Gibson Mhandu; [2021]
   Keywords : Bile acids; fecal contamination; personal care products; pharmaceuticals; sterols;

   Abstract : This study assessed the chemical substances that can be used to investigate fecal contamination of surface waters and how they can be used to indicate and trace fecal contamination in oligotrophic rivers of Northern Sweden. It was found that, from previous studies, several chemicals can be used to trace fecal contamination of surface water, and these include pharmaceuticals, personal care products, sterols, stanols and bile acids. READ MORE

3. 2. Allelopatiska egenskaper av tomatidin och andra alkaloider från potatisväxter

   University essay from SLU/Department of Plant Biology (from 140101)

   Author : Lukas Hallberg; [2017]
   Keywords : Allelopati; Tomatidin; Alkaloider; Steroler;

   Abstract : Alkaloids are a heterogeneous group of secondary metabolites in plants with toxic attributes. These substances often have toxic effects on different organisms and are found in many species of the nightshade family (Solanaceae). READ MORE

4. 3. Den naturliga variationen av fettkomponenter i Lepidium campestre

   University essay from SLU/Department of Molecular Sciences

   Author : Sofie Sandelius; [2017]
   Keywords : fältkrassing; oljegröda; oljemängd; fettsyror; tokoferol; fytosterol;

   Abstract : Fältkrassing, Lepidium campestre är en ny potentiell oljegröda som har valts ut för dess goda växttyp, användbara oljekvalitéer och för egenskapen att den tål att övervintra. Fältkrassing tillhör familjen Brassicaceae, samma familj som de välkända oljegrödorna raps och rybs. READ MORE

5. 4. Oxysterols inhibit plant Sterol methyl transferase type-1 enzyme activity in vitro

   University essay from SLU/Dept. of Plant Biology and Forest Genetics (until 131231)

   Author : Taraneh Shirazi; [2013]
   Keywords : oxysterol; sterol; sterol methyl transferase; plant secondary metabolism;

   Abstract : Sterols are important structural components of eukaryotic cell membranes, where they influence membrane fluidity and permeability. Sterols contain a four-ring structure with a hydrocarbon side-chain. The sterol composition and structure differs among plants, mammals and fungi. READ MORE

6. 5. Quantification of resin acids, fatty acids and sterols in process and waste water from forest industry

   University essay from Avdelningen för kemi och biomedicinsk vetenskap

   Author : Taner Ismailov; [2013]
   Keywords : effluent; waste water; forest industry; wood resin; wood extractives; resin acids; sterols; fatty acids; LLE; Liquid-liquid extraction; SPE; Solid phase extraction;

   Abstract : This work focuses on wood extractives in effluents from the CTMP plant at Skoghall Mill. Pulp and paper industry effluents contain mostly natural compounds which are part of the trees. They are toxic to aquatic life but harmless in nature, as they are present in low concentrations. READ MORE