Membrane Separation Technology for Animal Blood Enzymatic Hydrolysate Clarification & Purification

Animal blood enzymatic hydrolysate is a valuable raw material rich in small‑molecule peptides, amino acids and bioactive substances, widely applied in feed additives, bio‑fertilizer, and biochemical raw‑material industries. However, the crude diluted hydrolysate contains lots of suspended impurities, macromolecular proteins, colloids and insoluble residues. These contaminants cause dark color, turbidity and poor stability of final liquid products. Traditional filtration methods such as filter cloth and filter press can only remove large‑particle slag, and cannot effectively eliminate colloidal impurities, which easily lead to subsequent pipeline blockage and short shelf‑life of finished liquid.

Membrane separation technology provides an efficient physical separation solution for processing animal blood enzymatic hydrolysate. Without adding chemical flocculants, it relies on precise molecular‑weight cut‑off to achieve solid‑liquid separation and clarification at room temperature. As shown in the comparison sample bottles: the left bottle is original diluted animal blood enzymatic hydrolysate, which is turbid and deep reddish‑brown with plenty of tiny suspended substances. The right bottle is permeate liquid treated by membrane system, presenting bright transparent amber liquid, most suspended solids and colloidal pollutants are intercepted.

In actual production, ultrafiltration membrane system intercepts macromolecular impurities, denatured protein particles and colloids, while effective small‑molecule peptides and amino acids pass through the membrane. This process realizes clarification, impurity removal and partial concentration in one step.

Core advantages for animal blood hydrolysate processing

1. Room‑temperature physical treatment: No high‑temperature heating, protects heat‑sensitive bioactive peptides and amino‑acid components, maintains product quality.

2. Superior clarification effect: Removes fine colloids that filter presses cannot get rid of, finished liquid is clear and transparent, reduces later precipitation.

3. Low operating cost: Replace disposable filter cloth, less consumable consumption; membrane can be cleaned by CIP on‑site for repeated long‑term operation.

4. Simplify workflow: Combine clarification and pre‑concentration, reduce loading burden of subsequent evaporation and concentration equipment, save steam consumption.

5. Easy scale‑up: From lab small‑volume test unit to full‑scale industrial production line, stable performance can be replicated.