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Graines de lin entières et farine de lin : Différences de production et d'utilisation

Whole-Milled Flaxseed vs. Flaxseed Meal: Flaxseed Meal is generally a broader commercial term referring to milled flaxseed, which may come from either whole (full-fat) flaxseed or defatted flaxseed (a by-product after oil extraction).Graines de lin moulues emphasizes whole-seed milling, typically meaning flaxseed that has been ground directly from the intact seed, retaining its natural oils and nutrients.

When it comes to functional plant-based ingredients, flaxseed stands out for its rich content of Omega-3 fatty acids, dietary fiber, and plant protein. However, if you’re sourcing or formulating for large-scale food production, it’s essential to understand the difference between Whole-Milled Flaxseed et Flaxseed Meal, especially in terms of processing, nutrition, and application. We’ll break down the key differences between these two flaxseed derivatives and explore the cold milling (low-temperature crushing) process.


Whole-Milled Flaxseed vs. Flaxseed Meal

Category Whole-Milled Flaxseed Flaxseed Meal
Matières premières Graines de lin entières Full-fat or defatted flaxseed
Processus Milled whole without oil extraction Can be defatted after oil pressing
Teneur en huile High (30–40%) Low (<10% for defatted meal)
Oméga-3 (ALA) Retained Mostly removed in defatted meal
Texture Coarser grind Fine powder (80–120 mesh)
Nutrients Rich in oil, lignans, fiber High in protein and fiber
Use Cases Energy bars, smoothies, premium health foods Bakery blends, cereal fillers, protein meal
Durée de conservation Shorter (due to oil content) Longer (lower fat = more stable)

What is Cold Milling (Low-Temperature Crushing)?

Cold milling, or low-temperature crushing, is a mechanical grinding method that keeps the processing temperature below 40°C (104°F). Unlike conventional high-speed milling or heat-assisted extrusion, this method protects the sensitive nutrients in flaxseed, especially:

  • Alpha-Linolenic Acid (ALA) – a delicate Omega-3 fatty acid

  • Lignanes – phytonutrients with antioxidant and hormone-balancing properties

  • Unsaturated oils – prone to oxidation under heat


Cold Milling Process Flow

  1. Raw Material Cleaning
    Remove dust, stones, and foreign materials from whole flaxseed.

  2. Pre-Cooling
    Seeds are cooled to a low stable temperature (~15–20°C) before milling.

  3. Cold Grinding (Under 40°C)
    Flaxseed is milled using slow-speed rollers or cryogenic equipment to prevent temperature spikes.

  4. Sieving & Particle Control
    Final product is sieved to control particle size: 60–100 mesh for full-fat powder, 80–120 mesh for defatted meal.

  5. Metal Detection & Packing
    Packed in food-grade 25kg bags under strict hygiene and metal-free standards.


Why Use Low-Temperature Milling?

Low-temperature milling is essential for preserving the natural functionality and bioactive compounds of flaxseed. Here’s why manufacturers prefer it:

Benefit Explanation
Nutrient Retention Keeps Omega-3, lignans, and vitamins intact
Oil Stability Prevents oxidation, rancidity, and off-flavors
Functional Texture Produces consistent, flowable powder for easy blending
Improved Solubility Enhances dispersion in liquids and emulsions
Extended Shelf Life Especially true for defatted meal, with moisture ≤10%

Product Specifications Comparison

1. Whole-Milled Flaxseed (Full-Fat)

Item Spécifications
Appearance Light brown coarse powder
Fat Content ≥35%
ALA (Omega-3) ≥18%
Protéines 18–20%
Fiber ≥25%
Humidité ≤8%
Mesh Size 60–100 mesh
Durée de conservation 12 months in cool, dry storage

2. Flaxseed Meal (Defatted, Cold-Milled)

Item Spécifications
Appearance Fine light brown powder
Fat Content ≤10%
Protéines ≥32%
Fiber ≥35%
Humidité ≤10%
Mesh Size 80–120 mesh
Durée de conservation 18–24 months

Which One Should You Choose?

If You Need… Choose…
High Omega-3 for health food or premium applications Whole-Milled Flaxseed
High-protein, high-fiber functional filler for baking or pet food Defatted Flaxseed Meal
Long shelf life and oil-free powder Cold-milled Flaxseed Meal
Full nutrient profile with natural oils Whole-milled, non-defatted flaxseed

Market Positioning

Our flaxseed ingredients are positioned for value-added processing, functional nutrition, and clean-label formulations across multiple industries:

Segment Target Market
Food Manufacturing Bakery, snacks, cereals, plant-based dairy, sports nutrition
Pet Food Industry Premium dog & cat kibble, functional treats, animal supplements
Nutraceuticals Omega-3 capsules, gut health blends, vegan protein mixes
Natural & Organic Brands Clean-label, non-GMO, sustainable sourcing initiatives
Export Markets Southeast Asia, Middle East, EU, and North America

Application Scenarios

Here’s how businesses use our whole-milled et defatted flaxseed meal across various products:

Application Recommended Product Benefit
Energy bars, granola Whole-milled flaxseed Adds texture, omega-3s, fiber
High-protein bread Defatted flaxseed meal Boosts protein and fiber, reduces fat
Plant-based milk Cold-milled full-fat powder Natural emulsifier, creaminess
Vegan burgers Defatted meal Texture enhancement, binding
Smoothie powders Full-fat flaxseed Omega-3 boost, natural oil
Pet kibble & biscuits Defatted flaxseed meal Digestive fiber, anti-inflammatory support

Do Flaxseed Meal and Whole-Milled Flaxseed Go Bad?

Yes, both flaxseed meal et whole-milled flaxseed can go bad over time, especially due to the natural oils (particularly Omega-3 fatty acids) that are prone to oxidation. However, their shelf life varies depending on the fat content and storage conditions:

Shelf Life Guidelines

Produit Fat Content Storage Life Storage Tips
Whole-Milled Flaxseed High (≥35%) ~12 months Keep in airtight packaging in a cool, dry, and dark place. Refrigeration or vacuum sealing extends shelf life.
Flaxseed Meal (Defatted) Low (≤10%) 18–24 months Store in dry, shaded warehouse with good ventilation. Avoid humidity and heat.

Signs of Spoilage

  • Off smell (rancid, fishy odor)

  • Discoloration or clumping

  • Bitter taste

To maintain optimal quality, always seal tightly after opening, and avoid contact with air and light. For long-term storage, consider nitrogen flushing or keeping in cold storage below 10°C.

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