Technical White Paper | AquaScience™ Series | 2026

Molecular Shielding: Maximizing Enzyme Bioavailability in Tropical Pelleting

Authors: Dr. John Jiang, Dr. Li Wei | San Diego Global R&D Center

Abstract: In tropical aquaculture, feed pelleting often requires high-temperature steam conditioning (up to 95°C). This process severely degrades exogenous enzymes, resulting in a 60-70% loss of bioactive efficacy. This white paper introduces SILSEP’s Molecular Shielding technology, demonstrating how the AquaConvertPlus™ carrier protects sensitive molecules, ensuring up to 88% recovery and significant FCR reduction.

1. The Problem: The "Nutritional Leak"

During the manufacturing of high-density shrimp and tilapia feed, the conditioning phase is critical for water stability but lethal for biological additives. Standard industrial carriers offer no thermal protection, leading to what we term a "Nutritional Leak"—where the investment in expensive enzymes is lost before the feed reaches the farm.

2. Methodology: SILSEP Molecular Shielding

SILSEP utilizes a specialized synthetic silicate carrier with an open-network molecular architecture. This carrier acts as a "thermal buffer," encapsulating enzyme molecules within its pores and protecting them from direct heat and moisture during the steam Conditioning phase.

3. Experimental Results

Trials were conducted in a commercial feed mill in Sanming, Fujian, simulating tropical conditions (Ambient humidity 85%, Conditioning Temp 95°C for 90 seconds).

Metric	Standard Carrier (Control)	AquaConvertPlus™ (SILSEP)	Improvement
Enzyme Recovery (Post-Pelleting)	40%	88%	+120%
FCR (Mekong Delta Trial)	1.62	1.45	-0.17
Average Body Weight Gain (30 Days)	12.4g	14.1g	+13.7%

4. Conclusion & ROI

By preventing the degradation of exogenous enzymes, AquaConvertPlus™ directly improves the FCR and growth performance of aquatic species. For a large-scale producer, this translates to millions of dollars in saved feed costs and faster production cycles.