High Protein Castor Meal is a solid by-product obtained after mechanical extraction of oil from castor seeds (Ricinus communis). It is characterized by high protein content and nutrient density, making it suitable for non-feed industrial and agricultural applications where organic nitrogen, soil conditioning, and nutrient supplementation are required.
Industrially, high protein castor meal is used as a natural organic input rather than a chemical intermediate.
Product Overview
High protein castor meal is produced during the castor oil manufacturing process when oil is removed from castor seeds through pressing. The remaining solid material is processed to achieve consistent particle size and moisture control.
Common industrial forms:
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Powder
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Granules / pellets (application dependent)
At a high level, castor meal differs from oil-based castor derivatives by serving nutritional and agronomic functions instead of chemical reactivity. Its naturally high protein and organic matter content support soil fertility and microbial activity.
Manufacturing Process (High Level)
The production of high protein castor meal follows a controlled, high-level pathway integrated with castor oil extraction.
1. Raw Material Sourcing
Castor seeds sourced from established agricultural regions are used for oil extraction.
2. Mechanical Oil Extraction
Oil is removed through pressing, producing castor oil and residual meal.
3. Meal Processing
The pressed cake is crushed, ground, and conditioned to achieve uniform texture.
4. Moisture Control & Stabilization
Moisture levels are adjusted to support storage stability.
5. Quality Control Stages
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Incoming seed checks
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In-process monitoring
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Final batch inspection prior to packing
No proprietary detoxification or confidential processing parameters are disclosed.
Key Properties & Technical Characteristics
The suitability of high protein castor meal depends on its nutritional and physical characteristics. Each parameter affects application performance.
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Appearance & Physical State – Brownish granular or powder form; uniformity supports even application.
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Protein Content – Naturally high; contributes to nitrogen availability in soil.
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Organic Matter – Supports soil structure and microbial activity.
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Moisture Content – Controlled to maintain storage stability.
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Oil Residue – Low residual oil content after extraction.
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Bulk Density – Influences handling and transportation.
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Particle Size Distribution – Important for application uniformity.
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Typical Impurities Monitored – Foreign matter and excess moisture.
Typical Technical Parameters
| Parameter | Typical Indication |
|---|---|
| Physical Form | Powder / granules |
| Nutrient Values | Typical range — confirm with Certificate of Analysis (COA) |
| Moisture | Controlled range — COA verified |
Exact values vary by processing specification and must be confirmed with the COA.
Applications & End-Use Industries
Agriculture & Horticulture
Use case: Organic soil nutrient and conditioner.
Why it works: High protein and organic nitrogen content.
Examples: Crop fields, plantations, horticulture soils.
Organic Fertilizer Manufacturing
Use case: Base raw material.
Why it works: Slow nutrient release and organic composition.
Examples: Organic manure blends, bio-fertilizers.
Soil Conditioning
Use case: Improvement of soil structure.
Why it works: Organic matter enhances microbial activity.
Examples: Depleted soils, intensive farming systems.
Industrial & Other Uses
Use case: Raw material for further processing.
Why it works: Consistent composition and availability.
Examples: Specialty agricultural formulations.
Quality Standards & Compliance Practices
High protein castor meal is supplied based on routine quality checks and batch verification, without unverifiable certification claims.
Common practices include:
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Moisture analysis
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Physical inspection
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Particle size checks
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Batch traceability
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Availability of COA on request
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Quality systems aligned with generic ISO-style frameworks
Packaging, Storage & Export Handling
Common packaging options:
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HDPE / PP bags
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Jumbo bags (bulk)
Storage guidelines:
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Store in a cool, dry, and ventilated area
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Protect from moisture and contamination
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Shelf life depends on storage conditions
Export documentation typically includes:
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Commercial Invoice
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Packing List
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Certificate of Analysis (COA)
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Bill of Lading
HS Code: Provided on request
MOQ & Lead Time: Subject to packing and shipment terms; confirm at enquiry
Why Buyers Source Castor Meal from India
India is a major global producer of castor seeds. Gujarat functions as a key processing and export hub due to integrated agricultural supply chains, large-scale oil extraction infrastructure, and established export logistics, supporting consistent and traceable supply.
Frequently Asked Questions (FAQs)
1. What is high protein castor meal mainly used for?
Primarily for agricultural and soil conditioning applications.
2. Is castor meal used for animal feed?
Use depends on processing and regulatory requirements; buyers must verify suitability.
3. How should it be stored?
In dry, ventilated conditions away from moisture.
4. What affects shelf life?
Moisture exposure and storage conditions.
5. Are batches tested before dispatch?
Yes, routine quality checks are performed.
6. Is bulk supply available?
Yes, subject to packaging and logistics arrangements.
7. Is documentation provided for exports?
COA and standard export documents are available.
8. Can specifications vary by application?
Yes, processing specifications may vary depending on end use.
Technical Enquiries
For technical datasheets, samples, or commercial enquiries, buyers may contact Nova Industries at export@novaind.in.
