声明
ABSTRACT
摘要
Contents
Chapter 1 Introduction
1．1 Overview of gelatin films
1．1．1 Properties and source of gelatin
1．1．2 Production of gelatin film
1．1．3 Alteration and application of gelatin films
1．2 Introduction of plant extracts
1．2．1 History of developing plant extracts
1．2．2 Development of functional plant extracts
1．3 Development of plant extracts
1．3．1 Preparation of plant extracts
1．3．2 Functional of plant extracts
1．3．3 Application of plant extracts
1．4 The objective of this research
Chapter 2 Experimental methods
2．1 Chemical reagents and instruments
2．2 Preparation of gelatin film
2．3 Characterization of film
2．3．1 Determination of gel strength
2．3．2 Film thickness
2．3．3 Visual assessment of films
2．3．4 UV Light barrier and transparency of films
2．3．5 Mechanical properties of films
2．3．6 Thermo gravimetrie analysis
2．3．8 Scanning Electron Microscopy(SEM)
2．3．9 Atomic Force Microscope(AFM)
2．3．10 Antioxidant activity
2．3．11 Water vapor permeability(WVP)
Chapter 3 Result and Discussion
3．1 Antioxidant activity
3．1．1 Antioxidant activity of pure plant extracts solution
3．1．2 Antioxidant capacity of film forming solution
3．1．3 Characterization of antioxidant films
3．1．4 Classifying of functional chemical groups of antioxidant film
3．1．5 Thermal stability of antioxidant films
3．1．6 Mechanical properties of antioxidant films
3．1．7 Gel strength
3．1．8 Water resistance of antioxidant films
3．2 Characterization and preparation of antioxidant mix extract films
3．2．1 Antioxidant aetivity of pure mix plant extracts solution
3．2．2 Antioxidant activity of film forming solution
3．2．3 Characterization of mixed extract antioxidant films
3．2．4 Classifying of functional chemical groups of mix extract antioxidant film
3．2．5 Thermal stability of mix extract antioxidant films
3．2．6 Mechanical properties of mix extract antioxidant films
3．2．7 Gel strength
3．2．8 Water resistance of mixed extract antioxidant films
Chapter 4 Conclnsion
References
Acknowledgements
Research results during the master’s degree
Introduction to author and supervisor
北京化工大学;
