Quality Assurance in Tropical Fruit Processing

Growth of microorganisms and chemical reactions are often detrimental to both raw materials and products in the processing of fruits in tropical or subtropical climates. This book presents classical and modern methods of analysis and quality control in the processing of tropical fruits. Special attention is given to economic and rapid methods which are especially suitable in tropical climates and which, in most cases, can be carried out easily.

Inhalt
1 Quality Assurance Management.- 2 Analytical Methods.- 2.1 Determination of Moisture.- 2.2 Total Soluble Solids (Brix).- 2.3 Determination of Sugars.- 2.4 Starch Test.- 2.5 Determination of Alcohol Insoluble Solids.- 2.6 Determination of Acidity.- 2.7 The Brix/Acid-Ratio.- 2.8 Measurement of pH.- 2.9 Determination of Ash.- 2.10 Determination of Vitamin C.- 2.11 Determination of Carotenoids.- 2.12 Determination of Anthocyanins.- 2.13 Determination of Benzoic Acid.- 2.14 Determination of Sorbic Acid.- 2.15 Determination of Sulphur Dioxide.- 2.16 Determination of Pectinesterase Activity.- 2.17 Measurement of Cloud Stability.- 2.18 Colour Index.- 2.19 Determination of Non-enzymatic Browning.- 2.20 Determination of Furfural.- 2.21 Determination of Hydroxymethylfurfural.- 3 Physical Measurements.- 3.1 Measurement of Colour.- 3.2 Measurement of Consistency.- 3.3 Distance Consistometer.- 3.4 Puncture Testing.- 3.5 Distance Measuring Instruments.- 3.6 Measurement of Water Activity.- 4 SensoryAnalysis.- 4.1 Organization of the Tests.- 4.2 Statistical Test Designs.- 4.3 Selection and Training of Panel Members.- 4.4 Statistical Tables.- 5 Microbiological Analysis.- 5.1 Facilities, Equipment, Glassware, and Media for a Modest Microbiological Laboratory.- 5.2 Microbiological Examination of Tropical Fruit Products.- 5.3 Classification of Microorganisms.- 5.4 Detection of Microbial Contamination and Spoilage Using Chemical Methods.- 6 Water Control.- 6.1 Importance and Standards.- 6.2 Methods of Analysis.- 6.3 Microbiological Examination.- 7 Sanitation Control.- 7.1 Definition and Terminology.- 7.2 Factors Affecting Cleaning Efficiency and Costs.- 7.3 Evaluation of Cleanliness and Sanitation.- 7.4 Control of Employee Hygienic Practices.- 7.5 Pest Control.- 8 Waste Disposal Control.- 8.1 Definition and Terminology.- 8.2 Factors to be Considered in Waste Disposal Control.- 8.3 Methods of Analysis.- 9 Assessment and Improvement of Quality.- 9.1 Inspection, Quality Control, and Quality Assurance.- 9.2 Total Quality Management.- 9.3 Standards for Quality Assurance Management Systems.- 9.4 Quality Improvement.- Appendix 1.- Appendix 2.