Dissertation > Excellent graduate degree dissertation topics show

Chromatographic fingerprints combined with chemometrics parsed smoke flavor and fragrance formulations

Author: ZengTao
Tutor: LiangYiZeng
School: Central South University
Course: Analytical Chemistry
Keywords: Tobacco flavors Fingerprinting Recipe profiling Chemometrics
CLC: TQ651
Type: Master's thesis
Year: 2010
Downloads: 129
Quote: 1
Read: Download Dissertation

Abstract


The tobacco flavor production is divided into three categories: the fragrant raw material monomer, sub-suppliers and enterprise flavored feeding products. Hong sources of raw material monomer is generally not unique; unique sub-supplier sources. Enterprises flavored feeding products by perfumers deployment of the second sub-supplier products. The purpose of this topic is through thorough analysis of Hong raw material monomer and chemical composition of sub-supplier, gradually with the sub-supplier products from this stage deployment of enterprise flavored feeding products transition to direct deployment of the fragrant raw material monomer enterprises flavored feed products. The key to solving this problem is to analyze the complex flavor formula. Flavor formula parsing qualitative another complex system (essential oils, extracts, tinctures, etc.) from a complex system (Flavor), combined with the instrument combined with chemometric methods become the inevitable choice of flavor formula parsed. This paper compares the various pretreatment methods on the applicability of tobacco flavors and fragrances, established samples extracted with n-hexane ultrasound tobacco flavors, pre-treatment, separation and detection of GC / MS analysis method, and tobacco flavors The recipe parsed into a preliminary exploration. The first chapter introduction part of tobacco flavors and fragrances classification, summarized tobacco flavor and fragrance industry status quo and flavors and fragrances pretreatment method Research on the importance of chemometrics in the flavor and fragrance formulations profiling. Chapter 2 compared to n-hexane ultrasonic extraction, extract dichloromethane ultrasound, pre-treatment methods of distillation and solvent extraction, solid phase micro extraction, n-hexane solvent extraction and dichloromethane solvent extraction ebony extract analysis results. Investigated by GC / MS analysis of results and stability, n-hexane ultrasonic extraction as a pre-processing method to establish the characteristics of chromatographic fingerprint database. Ebony extract volatile substances, solid phase micro extraction conditions of the study, to determine the best conditions ebony extract solid phase micro extraction: extraction fiber head polydimethylsiloxane (PDMS), the equilibrium temperature of 70 ° C. The sampling time of 45min. Chapter chromatographic fingerprint technology and chemometric methods Essential Oils chromatographic fingerprint database, and mixed flavor oil for intelligent recognition. Chapter flavor of the two formulations analysis, the similarity of the real map of the analog spectrum above 0.9 and smell scanner Determination classified as a class. Tobacco flavors and formulations qualitative identification, preliminary exploration method to dissect complex formula.

Related Dissertations

  1. 14 new varieties of tea in Hangzhou, adaptability and EST-SSR Molecular Fingerprinting,S571.1
  2. Chinese medicines by high performance liquid chromatographic fingerprints and non-linear chemical fingerprint of,R284
  3. Studies on the Quality Standard of Dandelion,R284.1
  4. Study on the Pharmacognosy of Cacumen Tamaricis,R282.7
  5. Studies on the Influence of Parching Process to 1-Butanol Part of Phytolacca Esculenta,R284.1
  6. Research on the Chemical Composition of Calculus Bovis Cultivated by Glucuronidase and Natural Calculus Bovis,R284
  7. The Determination of the Main Coumarins of the Angelica Dahurica by RRLC and the Fingerprints & Pharmacodynamics of Inhibiting PLA2,R284
  8. Study on the Fingerprints Chromatogram of Cordyceps Sinensis and Herbal Medicine,R284
  9. Design and Implementation of Fingerprint Spectrum Differenece Analysis System of the Complex Multi-component System,O657
  10. Study on Digitized Fingerprints of Radix Sophorae Flavescentis,R284
  11. Study on the Online Expert System of Traditional Chinese Medicine HPCE Fingerprints,R284
  12. The quality of traditional Chinese medicine dandelion extract,R284
  13. Marigold flower fingerprints of its chemical composition,R284
  14. Laser Tweezers Raman and Infrared Spectroscopy-Based Study of Biomaterials,O433.4
  15. Study on Extraction, Purification and Quality Analysis in Total Flavonoids of Siraitia Grosvenorii Vine and Leaf,R284
  16. Studies on the Chromatographic Fingerprints of Yinzhihuang Powder for Injection,R284
  17. Quality Control and Pharmacokinetics of Fructus Aurantii,R282.7
  18. Study on Diversity of Bupleurum Chinese and Quality Inspection,R284.1
  19. Study on Diversity and Evaluate of the Quality of Traditional Chinese Medicine Fritillaria,R282.7
  20. Fingerprint Chromatogram of Radix-Salviae Miltiorrhizae and the Study of Muitidimensional Fingerprint Chromatogram of Senior Healthy Products,R284

CLC: > Industrial Technology > Chemical Industry > Spices and cosmetics industries > Spices chemical
© 2012 www.DissertationTopic.Net  Mobile