Fruit and Vegetable Technology Course

Lesson 1 • Introduction to Produce Grading Standards

Introduces official grading criteria for size, shape, defects, and maturity. Prepares students to apply quality standards in commercial and regulatory contexts.

Lesson 2 • Cellular Structure and Composition

Examines cell wall architecture, vacuoles, and organelles relevant to texture and flavour. Links cellular structure to processing behaviour and quality outcomes.

Lesson 3 • Botanical Classification of Produce

Covers taxonomic groupings of fruits and vegetables by plant family and edible part. Provides the classification framework used throughout the course.

Lesson 4 • Sensory Quality Attributes

Defines colour, flavour, aroma, and texture as measurable quality parameters. Connects sensory attributes to consumer acceptance and grading standards.

Lesson 1 • Postharvest Pathology Overview

Surveys fungal, bacterial, and viral pathogens causing postharvest decay. Establishes the biological basis for sanitation and disease management strategies.

Lesson 2 • Physiological Disorders

Identifies chilling injury, freezing damage, internal browning, and other abiotic disorders. Enables diagnosis and prevention through proper handling conditions.

Lesson 3 • Ripening and Senescence Processes

Describes biochemical changes in colour, texture, and flavour during ripening and senescence. Connects these changes to shelf-life management decisions.

Lesson 4 • Transpiration and Water Loss

Quantifies water loss mechanisms through cuticle and stomata and their effect on produce weight and texture. Guides humidity and packaging decisions.

Lesson 1 • Maturity Assessment at Harvest

Applies physical, chemical, and physiological indices to determine optimal harvest timing. Accurate maturity assessment is the first step in postharvest quality management.

Lesson 2 • Field Heat Removal Techniques

Explains the urgency of removing field heat immediately after harvest to slow respiration. Covers shade, hydrocooling, and forced-air pre-cooling in the field.

Lesson 3 • Field Sanitation and Worker Hygiene

Establishes sanitation protocols for equipment, containers, and field workers to prevent contamination. Directly supports food safety compliance requirements.

Lesson 4 • Manual and Mechanical Harvest Methods

Compares hand-picking, mechanical shakers, and harvesting aids for different commodities. Evaluates trade-offs between labour cost, speed, and produce damage.

Lesson 1 • Cold Chain Continuity and Monitoring

Addresses temperature monitoring, refrigerated transport, and retail display temperature management. Breaks in the cold chain accelerate quality loss and increase food safety risk.

Lesson 2 • Receiving and Dumping Operations

Covers wet and dry dump systems, receiving inspection, and lot traceability setup. Proper receiving prevents contaminated or substandard product from entering the line.

Lesson 3 • Sorting and Grading Technology

Examines manual sorting lines, optical sorters, and weight sizers for grade separation. Accurate grading maximises pack-out value and meets buyer specifications.

Lesson 4 • Cooling Methods and Cold Storage

Compares forced-air, hydrocooling, vacuum cooling, and room cooling for different commodities. Proper cooling method selection preserves quality and extends marketable shelf life.

Lesson 5 • Washing, Brushing, and Sanitising

Describes wash water chemistry, sanitiser types, and brush roller systems for surface cleaning. Effective sanitation reduces microbial load without damaging produce surfaces.

Lesson 1 • Cutting and Size Reduction Operations

Evaluates blade types, cutting equipment, and cutting geometry effects on quality. Sharp, clean cuts minimise cellular damage and reduce browning initiation.

Lesson 2 • Fresh-Cut Industry Overview

Profiles the fresh-cut market, product categories, and supply chain structure. Establishes the commercial context and quality expectations for fresh-cut operations.

Lesson 3 • Washing and Dewatering of Cut Produce

Details flume washing, spin drying, and sanitiser application for cut surfaces. Effective dewatering prevents dilution of sanitiser and reduces package moisture.

Lesson 4 • Browning Prevention Treatments

Applies anti-browning agents including ascorbic acid, citric acid, and calcium salts to cut surfaces. Treatment selection depends on commodity, flavour impact, and label requirements.

Lesson 1 • Ohmic and Microwave Heating Applications

Describes volumetric heating mechanisms for rapid, uniform processing of particulate products. Compares energy efficiency and quality outcomes with conventional thermal methods.

Lesson 2 • Blanching Principles and Methods

Covers hot water and steam blanching to inactivate enzymes before freezing or drying. Blanching conditions must balance enzyme inactivation with nutrient and texture retention.

Lesson 3 • Pulsed Electric Field and UV Treatment

Introduces PEF and UV-C light as non-thermal alternatives for juice and surface decontamination. Evaluates efficacy, equipment cost, and regulatory acceptance of each technology.

Lesson 4 • High-Pressure Processing Technology

Explains isostatic pressure application to inactivate pathogens while preserving fresh flavour. Covers equipment design, pressure cycles, and product suitability criteria.

Lesson 1 • Principles of Food Dehydration

Explains water activity, drying curves, and moisture migration in dehydrated produce. Establishes the thermodynamic basis for selecting drying methods and targets.

Lesson 2 • Frozen Produce Quality and Storage

Addresses enzymatic activity, recrystallisation, and freezer burn during frozen storage. Proper packaging and temperature management maintain quality through distribution.

Lesson 3 • Freezing Technology and IQF Systems

Details individual quick freezing, blast freezing, and cryogenic freezing for produce. Rapid freezing minimises ice crystal damage and preserves cellular texture.

Lesson 4 • Container Integrity and Shelf-Life Testing

Evaluates seam integrity, headspace, and vacuum for canned and glass-packed products. Shelf-life testing confirms stability under distribution and storage conditions.

Lesson 5 • Drying Equipment and Methods

Compares tray, tunnel, spray, drum, and freeze drying for different produce applications. Equipment selection determines final product texture, colour, and rehydration quality.

Lesson 1 • Sanitation Standard Operating Procedures

Designs master sanitation schedules, cleaning chemical selection, and verification testing. Effective SSOPs prevent allergen cross-contact and microbial biofilm formation.

Lesson 2 • Hazard Analysis and HACCP Principles

Applies the seven HACCP principles to biological, chemical, and physical hazards in produce. HACCP is the regulatory and commercial foundation for produce food safety programmes.

Lesson 3 • Traceability and Recall Management

Implements lot coding, record-keeping, and mock recall exercises for produce operations. Rapid traceability limits the scope and cost of product recalls.

Lesson 4 • Good Agricultural and Manufacturing Practices

Establishes GAP and GMP requirements for field, packinghouse, and processing environments. These prerequisite programmes underpin effective HACCP implementation.

Lesson 5 • Third-Party Audits and Certification

Prepares facilities for food safety audits and global food safety certification schemes. Certification is increasingly required by retail buyers and export markets.