Sökning: "Ascorbic acid"

Visar resultat 1 - 5 av 41 avhandlingar innehållade orden Ascorbic acid.

1. 1. Food ingredients from cultivated seaweeds-Improving storage stability and protein recovery

   Författare :Hanna Harrysson; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; unsaturated fatty acids; macroalgae; alterative cultivation; sequential recovery; pH-shift; ascorbic acid; long-term storage; Seaweed; protein extraction; proteins; lipid oxidation;

   Sammanfattning : There is a global demand for new vegetarian protein sources, and seaweed have for multiple reasons been identified as a promising candidate. The overall aim of this thesis was to evaluate the potential of three different Swedish seaweed species as food protein sources, but also as sources of unsaturated fatty acids, vitamins and minerals. LÄS MER

3. 2. Biochemical Control Aspects in Lignin Polymerization

   Författare :Anders Holmgren; Gunnar Henriksson; Liming Zhang; Jussi Sipilä; KTH; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Lignin polymerization; DHP; Ascorbic Acid; NADH; template polymerization; melanin; Chemistry; Kemi;

   Sammanfattning : Lignins are produced by all vascular plants and they represent one of the most abundant groups of biopolymers in nature. Lignin chemistry research, which has been of great importance for the progress of pulping technologies, has been plagued by the difficulties of its isolation and characterization. LÄS MER

4. 3. Reactions of Model and Anticancer Active Platinum(IV/II) Complexes - A Kinetic and Mechanistic Study

   Författare :Kelemu Lemma; Kemiska institutionen; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Model Pt II complexes; Anticancer active Pt IV compounds; Cisplatin; Rescue agents; L-Ascorbic acid; Thiol; Substitution; Kinetics and mechanism; Electron transfer; Inorganic chemistry; Oorganisk kemi;

   Sammanfattning : In this thesis reductions of model and anticancer active Pt(IV) complexes with thiols and ascorbic acid and substitution reactions of cisplatin and model Pt(II) complexes with S-donor nucleophiles (rescue agents) have been investigated using stopped-flow and UV/VIS spectrophotometry. Glutathione (GSH) reduction of the anticancer active Pt(IV) compounds t- and c-[PtCl4(cha)(NH3)] (cha = cyclohexylamine), t-[PtCl4(thiazole)(NH3)] and c-[PtCl4(NH3)2] at 25 oC was observed to be very fast. LÄS MER

5. 4. Nutritional Value and Quality of Processed Mango Fruits

   Författare :Isabel Guiamba; Chalmers tekniska högskola; []
   Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; acidification; ascorbic acid oxidase; polyphenoloxidase; water blanching; β-carotene; osmotic dehydration; infrared heating; microwave heating; Mango; EDTA; vitamin C;

   Sammanfattning : Mango (Mangifera indica L.) is one of the most important tropical fruits commercialized and consumed worldwide, and an excellent source of fibre, bioactive compounds such as pro-vitamin A carotenoids, vitamin C (ascorbic acid) and phenolics. Mango was used in this thesis as a model fruit of fruits and vegetables that are rich sources of nutrients. LÄS MER

7. 5. Näringsvärden i vilda svenska växter : analyser och fysiologiska studier av olika komponenter med tonvikt på kolhydrater, protein och vitamin C

   Författare :Stefan Källman; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Växter; Fytokemi; Nutrition;

   Sammanfattning : In order to investigate the possibility of using wild plants as food in emergency situations and to provide results for further physiological studies, the content and seasonal variations of different nutritive components were investigated in 80 wild Swedish species, including 9 lichens. The plants were analysed for: glucose, fructose, galactose, sucrose, inulin, starch, crude protein, ascorbic acid, minerals, ash and amino acids. LÄS MER