Executive Summary
A leading natural food color manufacturer required a fully automated, GMP-compliant Annatto Natural Color Extraction Plant to manufacture premium Bixin, Norbixin, and natural annatto color formulations for the food, beverage, dairy, pharmaceutical, cosmetic, and animal nutrition industries.
The customer required a turnkey facility capable of maximizing pigment recovery, preserving carotenoid stability, minimizing solvent and utility consumption, and consistently producing export-grade natural colors compliant with international food safety and regulatory standards.
MECH O TECH LLP successfully designed, engineered, manufactured, supplied, installed, and commissioned a 20 TPD Annatto Natural Color Extraction Plant integrating advanced seed preparation, solvent extraction, filtration, vacuum solvent recovery, alkaline conversion, purification, concentration, spray drying, and intelligent PLC-SCADA automation.
The plant consistently produces premium Annatto Extracts with high color value, excellent stability, superior purity, and outstanding manufacturing efficiency.
Customer Background
The customer manufactures natural color ingredients for food manufacturers, beverage companies, dairy industries, bakery & confectionery companies, nutraceutical manufacturers, pharmaceutical companies, cosmetic manufacturers, and international food ingredient exporters. Increasing global demand for clean-label natural colors required the customer to invest in a modern, automated extraction facility with GMP-compliant manufacturing practices.
Customer Challenges
Before modernization, the customer experienced:
- Low pigment recovery
- Variable color strength
- High solvent consumption
- Manual production inconsistencies
- Long extraction cycles
- High operating costs
- Pigment degradation
- Limited production capacity
- Difficulty meeting export specifications
Project Objectives
MECH O TECH LLP developed a turnkey solution capable of:
- Processing 20 MT/day of Annatto Seeds
- Producing premium Bixin and Norbixin
- Maximizing carotenoid recovery
- Recovering over 99% extraction solvent
- Preserving pigment stability
- Reducing energy consumption
- Meeting GMP, HACCP, FSSC 22000, and international food ingredient standards
- Supporting future expansion up to 100 TPD
Raw Material
- Botanical Name
- Bixa orellana
- Common Name
- Annatto
- Plant Part Used
- Seeds
- Moisture Content
- 8–12%
- Daily Processing Capacity
- 20,000 kg/day
Finished Product
Available Options
Applications
- Cheese
- Butter & Margarine
- Dairy Products
- Bakery Products
- Snacks
- Beverages
- Confectionery
- Pharmaceuticals
- Cosmetics
- Animal Feed
Process Flow
Process Description
Raw Material Preparation
Annatto seeds are cleaned to remove dust, stones, and foreign matter before being milled to optimize pigment extraction.
Solvent Extraction
Prepared seeds are processed in stainless steel extraction vessels using food-grade solvents under controlled temperature conditions.
The extraction system provides:
- Maximum bixin recovery
- Excellent pigment stability
- Uniform extraction efficiency
- Reduced solvent losses
- Consistent batch quality
Filtration
The extract is clarified using pressure filtration systems to remove insoluble solids and improve downstream processing.
Vacuum Solvent Recovery
The filtered extract enters vacuum evaporators where over 99% of solvent is recovered, condensed, purified, and recycled.
Benefits include:
- Reduced operating costs
- Improved process safety
- Environmental sustainability
- High product purity
Bixin Concentration
The concentrated extract is standardized to produce premium oil-soluble bixin with excellent color strength.
Norbixin Production
For water-soluble applications, bixin undergoes controlled alkaline conversion to produce premium norbixin with excellent dispersion and stability.
Purification & Standardization
Final purification removes impurities and ensures consistent color value, particle size, and product stability according to customer specifications.
Spray Drying / Liquid Formulation
Depending on customer requirements:
- Spray-Dried Powder
- Liquid Color Concentrate
- Oil-Based Formulation
- Water-Based Formulation
Quality Standardization
Each batch is analyzed for:
- Bixin Content
- Norbixin Content
- Total Carotenoids
- Color Value
- Residual Solvent
- Moisture
- Particle Size
- Heavy Metals
- Microbial Limits
- Purity
Major Equipment Supplied
- Raw Material Cleaning System
- Grinding Mill
- Stainless Steel Extraction Vessels
- Solvent Storage Tanks
- Pressure Leaf Filters
- Vacuum Evaporators
- Solvent Recovery System
- Conversion Reactors
- Purification System
- Spray Dryer
- Ribbon Blender
- Product Storage Tanks
- PLC-SCADA Automation Panel
- Electrical MCC
- Instrumentation Package
- CIP System
Automation Features
The plant incorporates intelligent automation including:
- Recipe Management
- Extraction Sequence Control
- Temperature Monitoring
- Solvent Flow Monitoring
- Vacuum Control
- Reactor Control
- Spray Dryer Automation
- Batch Traceability
- Alarm Management
- Utility Monitoring
- Production Analytics
- Remote Diagnostics
- Industry 4.0 Connectivity
GMP & Safety Features
The facility is engineered to meet international food manufacturing standards. Features include:
- SS 316L product-contact surfaces
- Hygienic sanitary piping
- Closed-loop solvent handling
- Explosion-proof electrical systems
- Nitrogen blanketing
- Food-grade seals and gaskets
- CIP-compatible construction
- Validation-ready equipment
- GMP-compliant layout
- HACCP-ready process engineering
Plant Utilities
- Steam Boiler
- Cooling Tower
- Chilled Water System
- Vacuum System
- Air Compressor
- Soft Water System
- Electrical Power
- Nitrogen Supply
Sustainability Features
The plant incorporates environmentally responsible engineering through:
- Closed-loop solvent recovery
- Heat recovery systems
- Water conservation
- Energy-efficient vacuum systems
- Reduced solvent emissions
- Utility optimization
- Eco-friendly process design
- Reduced environmental footprint
Customer Benefits
Following successful commissioning, the customer achieved:
- Higher pigment recovery
- Superior color consistency
- Improved product stability
- More than 99% solvent recovery
- Reduced operating costs
- Lower utility consumption
- Increased production capacity
- Consistent export-quality products
- Enhanced regulatory compliance
- Excellent return on investment
Plants Used In This Project
Why Mech O Tech LLP?
MECH O TECH LLP is a globally recognized manufacturer of turnkey extraction plants for natural colors, herbal extracts, nutraceuticals, pharmaceuticals, food ingredients, and specialty botanical products. With over 30 years of engineering expertise, our advanced extraction technology, solvent recovery systems, purification processes, and PLC-SCADA automation enable customers worldwide to manufacture premium natural ingredients with exceptional productivity and international quality standards.
Conclusion
The Annatto Natural Color Extraction Plant from MECH O TECH LLP provides a complete turnkey solution for manufacturing premium Bixin, Norbixin, and natural annatto color formulations. By integrating advanced solvent extraction, precision purification, intelligent automation, and hygienic GMP engineering, the facility delivers world-class product quality, reduced operating costs, and sustainable manufacturing performance.
Key Technical Highlights
- Raw Material
- Bixa orellana (Annatto Seeds)
- Plant Capacity
- 2–100 TPD (customizable)
- Finished Products
- Bixin, Norbixin, Annatto Oleoresin, Natural Food Colors
- Technology
- Solvent Extraction + Vacuum Solvent Recovery + Alkaline Conversion + Spray Drying
- Solvent Recovery
- Up to 99%
- Automation
- PLC-SCADA with Industry 4.0 Integration
- Construction Material
- SS 304 / SS 316L
- Compliance
- GMP, WHO-GMP, HACCP, FSSC 22000, USFDA-ready hygienic design, CE-compliant equipment
- Applications
- Food Ingredients, Dairy, Beverages, Bakery, Pharmaceuticals, Nutraceuticals, Cosmetics, Animal Feed
Why Global Manufacturers Choose MECH O TECH LLP
- 30+ years of engineering excellence in botanical extraction and natural color processing
- Complete turnkey execution from pilot validation to commercial production
- Customized plants from 100 kg/day pilot systems to 100 TPD industrial facilities
- High-efficiency extraction with 99% solvent recovery
- Advanced purification and standardization technology
- Intelligent PLC-SCADA automation with complete batch traceability
- GMP, WHO-GMP, HACCP, FSSC 22000, and international hygienic engineering standards
- Comprehensive installation, validation, operator training, preventive maintenance, spare parts support, and lifetime technical assistance
- Extensive expertise in natural colors, herbal extracts, nutraceuticals, oleoresins, essential oils, pharmaceuticals, and food processing plants
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