Dissertation > Excellent graduate degree dissertation topics show

Study on Preparation and Flocculation Property of Oxidized Cationic Waxy Corn Starch

Author: WuHongYang
Tutor: TangHongBo
School: Shenyang University of Technology
Course: Applied Chemistry
Keywords: waxy corn starch oxidation etherification decolorization flocculation
CLC: TS235.1
Type: Master's thesis
Year: 2010
Downloads: 55
Quote: 0
Read: Download Dissertation

Abstract


The preparation oxidized waxy corn starch, cationic waxy corn starch and oxidized cationic waxy corn starch was studied by using waxy corn starch as raw materials, 3-choloro-2-hydroxypropyl-trimethyl ammonium chloride as etherifying agent, hydrogen peroxide as oxidating agent, sodium hydroxide as etherifying catalyst, copper sulfate as oxidation catalyst. The better preparation conditions of oxidation waxy corn starch are the quality of mass fraction of 30% hydrogen peroxide accounted for the quality of waxy corn starch (dry basis) 33.3%, the quality of the mass fraction of 2% copper sulfate accounting for the quality of waxy corn starch (dry basis) 4.08%, pH8.0, reaction temperature 50℃, reaction time 2h. The better preparation conditions of cationic waxy corn starch are the molar ratio of etherifying agent to dry waxy corn starch 0.5, pH 10.5, the molar ratio of ethanol to dry waxy corn starch 4.0, reaction temperature 50℃and reaction time 12h. The better preparation conditions of oxidation cationic waxy corn starch are the molar ratio of etherifying agent to dry oxidation waxy corn starch 0.4, pH 10.5, the molar ratio of ethanol to dry oxidation waxy corn starch 4.0, reaction temperature 45℃and reaction time 9h.The properties of waxy corn starch,oxidized waxy corn starch,cationic waxy corn starch and oxidized cationic waxy corn starch were studied.The results showed that the paste transparence and retrogradation of oxidized starch could be increased,but retrogradation could be reduced. Cationic waxy corn starch and oxidation cationic waxy corn starch have a similar variation.Compared with the original waxy corn starch, IR spectrums of oxidation waxy corn starch, cationic waxy corn starch and oxidation cationic waxy corn starch had correspongding characteristic absorption peaks.The decolorization and floccucation properties of cationic waxy corn starch and oxidation cationic waxy corn starch.The results showed that cationic waxy corn starch and oxidized cationic waxy corn starch have a similar law on the effect of decolorization of dye solution,with the improvement of the degree of substitution,the decolorization effect increased. The oxidized cationic waxy corn starch had better flocculation performance than cationic waxy corn starch.

Related Dissertations

  1. Preparation of Micro-Arc Oxidation Ceramic Coating on Mg Alloy and the Research of Galvanic Corrosion,TG174.453
  2. Study on the Degradation of 2-MIB in Aqueous Solution by ZnOOH Catalized Ozonation,X703
  3. Multi-walled Carbon Nanotubes Au _AT_ of Pt, Au _AT_ of Pd core-shell structure of the catalyst preparation and electrochemical properties of,O643.36
  4. Studies on Extraction and Analysis of Fructooligosaccharides in Smallanthus Sonchifolius,TS255.1
  5. The Study of NO Low-temperature Catalytic Oxidation Over MnFeO_x Catalyst,X701
  6. The Study on Anti Tumor and Anti-oxidation Activities in Vitro of Extracts from Oxalis Corniculata L,R285
  7. The Impact of Atorvastatin- reduced Glutathione Combination to Anti-oxidation Action and Blood Lipid Level in Rats with Hyperlipidemia,R965
  8. Investigation on Gasification Characteristics of Pulverized Coal in Entrained Flow Gasifier Based on Flameless Oxidation,TQ546
  9. Effects of N Addition on Soil Soluble Nitrogen and CH4 Oxidation of Upland in Subtropical,S714
  10. Solid Oxide Fuel Cell ferrite connect the material properties of,TM911.4
  11. Expression of a Laccase Gene from Lentinula Edodes in Pichia Pastoris and Degradation of Triarylmethane Dyes by Laccase in the Presence of Natural Mediators,TQ925
  12. The Research of Fast Integrated Physicochemical Technology for Emergent Treatment of Organic Contamination Accidents,X703
  13. Effects of in Ovo Equol Injection on Posthatch Growth and Meat Quality of Broilers and Mechanism Research,S831
  14. Studies on the Mechanism and Application of Bacillus Subtilis Lipopeptide Anti-Aeromonas Hydrophila,S948
  15. Treatment of Tannery Wastewater by Combined Process of Two-stage H/O and Ecological Pond: Study and Practice,X794
  16. Study on the Effect of Natural Antioxidant and Edible Film for Dry-Cured Meat Products,TS251.6
  17. Studies on Flocculating Mechanism of Lactobacillus Flocculating Starch in Sweet Potato Slurry and Isolation, Identification and Characterization about Active Ingredients,TS231
  18. Equipment Research of the Ship Sewage Treatment,X703
  19. Study on Electrochemistry and Raman Spectrum of Picoline Electro-Oxidation Beavior in Non-aqueous System,O626.321
  20. Study on Advanced Oxidation Technology of Ozonation for Berberine Pharmaceutical Wastewater Treatment,X787
  21. Preparation of Polysulfonate Ultrafiltration Membrane and Application on Oil Decolorization,TQ320.721

CLC: > Industrial Technology > Light industry,handicrafts > Food Industry > Starch Industry > Various starch manufacturing > Cereal starch
© 2012 www.DissertationTopic.Net  Mobile