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Survey on physical and chemical parameters of commercial sufu and optimization of the model sufu production.

Lu, Ying. / Thesis submitted in: March 2007. / Thesis (M.Phil.)--Chinese University of Hong Kong, 2008. / Includes bibliographical references (leaves 142-155). / Abstracts in English and Chinese. / THESIS COMMITTEE --- p.i / ACKNOWLEDGEMENTS --- p.iii / ABSTRACT(ENGLISH) --- p.iv / ABSTRACT(CHINESE) --- p.vi / TABLE OF CONTENT --- p.viii / LIST OF TABLES --- p.xii / LIST OF FIGURES --- p.xiv / ABBREVIATIONS --- p.xvii / Chapter CHAPTER 1: --- LITERATURE REVIEW --- p.1 / Chapter 1.1 --- Background of Sufu --- p.1 / Chapter 1.2 --- Classification of Sufu --- p.2 / Chapter 1.3 --- Production of Sufu --- p.3 / Chapter 1.3.1 --- Preparation of Tofu --- p.7 / Chapter 1.3.2 --- Preparation of Pehtze --- p.7 / Chapter 1.3.3 --- Salting and Brining --- p.8 / Chapter 1.3.4 --- Aging --- p.8 / Chapter 1.4 --- Biological and Chemical Changes during Sufu Production --- p.8 / Chapter 1.4.1 --- Microbial Changes during Sufu Production --- p.8 / Chapter 1.4.2 --- Proteolysis during Sufu Production --- p.9 / Chapter 1.4.3 --- Lipolysis during Sufu Production --- p.10 / Chapter 1.4.4 --- Flavor during Sufu Production --- p.10 / Chapter 1.5 --- Benefits of Sufu --- p.11 / Chapter 1.6 --- Existing Problems --- p.12 / Chapter 1.7 --- Exogenous Enzymes for Acceleration of Sufu Fermentation --- p.13 / Chapter 1.8 --- The Orthogonal Experimental Design --- p.14 / Chapter 1.9 --- Objective of This Study --- p.17 / Chapter CHAPTER 2: --- SURVEY ON PHYSICAL AND CHEMICAL PARAMETERS OF COMMERCIAL SUFU --- p.18 / Chapter 2.1 --- Introduction --- p.18 / Chapter 2.2 --- Materials and Methods --- p.19 / Chapter 2.2.1 --- Crude Protein Analysis --- p.19 / Chapter 2.2.2 --- Crude Fat Analysis --- p.19 / Chapter 2.2.3 --- Texture Profile Analysis (TPA) --- p.20 / Chapter 2.2.4 --- Free Amino Acid Analysis --- p.21 / Chapter 2.2.4.1 --- Chemicals and Standards --- p.23 / Chapter 2.2.4.2 --- Other Materials --- p.24 / Chapter 2.2.4.3 --- Additional Equipment --- p.24 / Chapter 2.2.4.4 --- Sample Pre-treament --- p.24 / Chapter 2.2.4.5 --- Preparing the Eluting Medium --- p.25 / Chapter 2.2.4.6 --- SPE and Derivatization --- p.25 / Chapter 2.2.4.7 --- GC-MS Conditions --- p.26 / Chapter 2.2.4.8 --- Calibration and Standard Curve Set Up --- p.26 / Chapter 2.2.4.9 --- Statistical Analysis --- p.27 / Chapter 2.2.5 --- Free Fatty Acid Analysis --- p.27 / Chapter 2.2.5.1 --- Chemicals and Standards --- p.27 / Chapter 2.2.5.2 --- Equipment --- p.28 / Chapter 2.2.5.3 --- Calibration and Standard Curve Set Up --- p.29 / Chapter 2.2.5.4 --- Free Fatty Acid Extraction --- p.29 / Chapter 2.2.5.5 --- GC-MS Conditions --- p.30 / Chapter 2.2.5.6 --- Statistical Analysis --- p.30 / Chapter 2.2.6 --- Sample Collection: Commercial Brands of Sufu --- p.31 / Chapter 2.3 --- Results --- p.32 / Chapter 2.3.1 --- Results of Crude Protein Contents in Commercial Sufus --- p.32 / Chapter 2.3.2 --- Results of Crude Fat Contents in Commercial Sufus --- p.33 / Chapter 2.3.3 --- Results of Texture Profile Analysis in Commercial Sufus --- p.34 / Chapter 2.3.4 --- Results of Free Amino Acids in Commercial Sufus --- p.37 / Chapter 2.3.5 --- Results of Free Fatty Acids in Commercial Sufus --- p.47 / Chapter 2.4 --- Discussion --- p.55 / Chapter CHAPTER 3: --- SHORTEN THE FERMENTATION TIME USING EXOGENOUS ENZYMES BY THE ORTHOGONAL EXPERIMENTAL DESIGN AND OPTIMIZE RESULTANT PROPERTIES --- p.58 / Chapter 3.1 --- Introduction --- p.58 / Chapter 3.2 --- Materials and Methods --- p.58 / Chapter 3.2.1 --- Laboratory-scale Sufu Production --- p.58 / Chapter 3.2.1.1 --- Preparation of Tofu --- p.58 / Chapter 3.2.1.2 --- Sub-culture Mold Strain --- p.59 / Chapter 3.2.1.3 --- Spore Suspension --- p.59 / Chapter 3.2.1.4 --- Preparation of Pehtze --- p.60 / Chapter 3.2.1.5 --- Inoculation of Tofu --- p.61 / Chapter 3.2.2 --- Brining and Aging with Addition of Enzyme Mixture --- p.62 / Chapter 3.2.3 --- Exogenous Enzymes of Food-grade --- p.62 / Chapter 3.2.3.1 --- Protamex --- p.63 / Chapter 3.2.3.2 --- Palatase --- p.64 / Chapter 3.2.3.3 --- Lipase --- p.64 / Chapter 3.2.3.4 --- Flavorzyme --- p.65 / Chapter 3.2.4 --- The Orthogonal Experimental Design --- p.65 / Chapter 3.2.4.1 --- Factors --- p.65 / Chapter 3.2.4.2 --- Statistical Analysis of Orthogonal Design L9 (34) --- p.66 / Chapter 3.2.5 --- "Crude Protein, Crude Fat and TPA Analysis" --- p.67 / Chapter 3.2.6 --- Free Amino Acid and Free Fatty Acid Analysis --- p.67 / Chapter 3.3 --- Results --- p.68 / Chapter 3.3.1 --- Orthogonal Results of Crude Protein Contents --- p.69 / Chapter 3.3.2 --- Orthogonal Results of Crude Fat Contents --- p.71 / Chapter 3.3.3 --- Orthogonal Results of Texture Profiles --- p.73 / Chapter 3.3.4 --- Orthogonal Results of Free Amino Acids --- p.80 / Chapter 3.3.5 --- Orthogonal Results of Free Fatty Acids --- p.108 / Chapter 3.4 --- Discussion --- p.121 / Chapter 3.4.1 --- Crude Protein of Enzyme Adding Sufu in Orthogonal Experiment --- p.121 / Chapter 3.4.2 --- Crude Fat of Enzyme Adding Sufu in Orthogonal Experiment --- p.122 / Chapter 3.4.3 --- Texture Profiles of Enzyme Adding Sufu in Orthogonal Experiment --- p.123 / Chapter 3.4.4 --- FAAs of Enzyme Adding Sufu in Orthogonal Experiment --- p.124 / Chapter 3.4.5 --- FFAs of Enzyme Adding Sufu in Orthogonal Experiment --- p.128 / Chapter CHAPTER 4: --- DISCUSSIONS AND CONCLUSION --- p.131 / REFERENCE --- p.142 / APPENDIX --- p.156

Identiferoai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_326251
Date January 2008
ContributorsLu, Ying., Chinese University of Hong Kong Graduate School. Division of Biology.
Source SetsThe Chinese University of Hong Kong
LanguageEnglish, Chinese
Detected LanguageEnglish
TypeText, bibliography
Formatprint, xix, 165 leaves : ill. (some col.) ; 28 cm.
CoverageChina
RightsUse of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/)

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