Rainy Season Shield

Preventing Feed Oil Rancidity via Molecular Barrier Technology

The Mekong Delta rainy season (May - October) presents a catastrophic challenge for feed stability. With relative humidity often exceeding 90%, high-oil shrimp feeds are prone to rapid lipid oxidation, leading to nutrient loss and toxin buildup.

The Problem: Moisture-Induced Oxidation

Standard feed ingredients are hygroscopic. During rainy seasons, moisture ingress catalyzes the breakdown of lipids into free fatty acids and peroxides. This not only reduces the energy value of the feed but also causes severe intestinal inflammation in shrimp.

The Solution: The "Moisture Shield" Mechanism

Live Molecular Simulation

Moisture Shield Animation

[Interactive] Silsep AquaPure™ pores (2.5nm) selectively trapping H₂O molecules while shielding lipid droplets.

AquaPure™ Synthetic Amorphous Silica features a precisely engineered 2nm uniform pore structure. This architecture provides a selective adsorption barrier:

  • Hydrophobic Optimization: Selective pore chemistry that prioritizes lipid anchoring over water vapor.
  • Surface Area: Over 300 m²/g of internal surface area to stabilize oils within the pellet matrix.
  • Phase Separation: Prevents oil leaching, which reduces the contact surface between lipids and environmental moisture.

Trial #42: Key Findings

In our latest study (Trial #42), feed treated with 0.5% AquaPure™ showed a 40% reduction in Peroxide Value (POV) after 30 days of storage at 32°C and 95% RH compared to untreated control groups.

Download Technical Report

Get the full Trial #42 data set and implementation guidelines for rainy season production.

Request PDF (Trial #42)

Expert Contact

Anh Nguyen

Anh Nguyen

Vietnam Tech Service