Thermal
Shielding.

HC-Bio is the only product in the Silfeed HC-Series specifically engineered to protect heat-sensitive bio-active ingredients — enzymes, probiotics, vitamins — during the most severe thermal processing conditions in feed manufacturing. The 95°C steam conditioning stage used in poultry and swine feed pelleting is where traditional carriers catastrophically fail.

The protection mechanism operates through HC-Bio's Hexagonal Mesoporous Shield (HMS) architecture, which is optimized for maximum thermal tortuosity. When steam-conditioning temperatures reach 95°C, untreated silica carriers experience capillary condensation — moisture is forced into the hydrophilic pores, causing the pore structure to collapse and expel the encapsulated active ingredient, resulting in 40–60% loss of enzyme activity.

HC-Bio prevents this through three simultaneous mechanisms. First, the ≥115° contact angle creates an extremely strong hydrophobic barrier. Second, the silane coupling agent bonds are thermally stable well beyond processing temperatures — the covalent Si-O-Si bonds do not break down at 95°C or even at 105°C. Third, the HMS architecture maintains positive Laplace pressure within every pore, actively repelling moisture.

The result is a verified 88% enzyme recovery rate after 95°C extrusion, confirmed by HPLC analysis in technical report T22 (UCSD-MB-2026-T22).

Yes — HC-Bio is specifically validated and recommended for rumen bypass applications in ruminant nutrition, where the goal is to protect active ingredients (such as choline, methionine, niacin, and specific enzymes) from degradation in the rumen and deliver them intact to the abomasum or lower intestinal tract.

The rumen environment presents a unique challenge: it is a warm (39–41°C), moist, highly microbial fermentation chamber with a near-neutral pH. Active ingredients are often extensively degraded by rumen microbes before they can provide nutritional value.

HC-Bio's ≥115° hydrophobic contact angle creates the moisture barrier needed to prevent premature wetting and dissolution of the active ingredient in the rumen fluid. The HMS architecture's pore tortuosity can be engineered to control the release kinetics — maintaining complete protection throughout the rumen transit time (typically 24–48 hours) and releasing the active in the acidic environment of the abomasum (pH 2–3) or the enzymatic environment of the small intestine.

This targeted delivery capability has direct economic implications for dairy and beef operations. Rumen-protected choline, for example, shows significantly improved bioavailability when delivered past the rumen, supporting liver function in transition cows and improving milk production metrics.

HC-Bio's thermal performance claims are among the most extensively verified in the hydrophobic silica industry, backed by multiple independent testing protocols and third-party validation.

Testing confirms less than 0.5% mass change at 250°C, demonstrating that the hydrophobic molecular shield does not degrade at temperatures far exceeding normal feed processing conditions.

Hitachi SU8010 Scanning Electron Microscopy confirms 100% pore integrity after 95°C testing — no collapse, no structural deformation, no evidence of moisture penetration.

Technical Report T22 documents high-performance liquid chromatography analysis confirming the 88% recovery rate after 95°C steam conditioning.

Independent laboratory testing confirms the HMS architecture maintains positive Laplace pressure for water at processing temperatures.

All test data is available to customers upon request, supporting evidence-based procurement decisions and regulatory compliance documentation.

HC-Bio offers several distinct advantages over conventional carriers used for probiotic protection, including standard silica, maltodextrin, starch-based matrices, and alginate coating systems.

Probiotic organisms are extremely sensitive to heat, with significant viability loss occurring above 70–80°C in unprotected systems. HC-Bio's ≥115° contact angle and thermally stable silane shield maintain a protective microenvironment around the probiotic cells, significantly improving survival rates through the pelleting process.

Probiotics are also highly sensitive to moisture — atmospheric humidity alone can trigger premature germination and subsequent cell death during storage. HC-Bio's hydrophobic barrier prevents moisture ingress throughout the product's shelf life, superior to maltodextrin and starch-based carriers which are themselves hygroscopic.

Unlike alginate coating systems that require specialized encapsulation equipment, HC-Bio integrates directly into existing high-shear mixer and microencapsulation systems.

For ruminant probiotic applications, HC-Bio's pore tortuosity can be engineered for targeted release in the lower intestinal tract, ensuring the probiotic reaches its site of action.