Lysine Residue Protein

Updated: 2026-07-22

Overview

Lysine residue protein extract is a valuable byproduct obtained from the fermentation process of lysine, an essential amino acid widely used in animal feed and human nutrition. The extract is rich in protein and amino acids, making it a cost-effective ingredient for various industrial applications. Derived from the residual biomass after lysine production, this extract undergoes processing to remove impurities and concentrate the protein content. It is particularly favored in the animal feed industry due to its nutritional profile and affordability compared to other protein sources.

Physical and Chemical Properties

Lysine residue protein extract typically appears as a light to dark brown powder with a mild, slightly fermented odor. Its solubility in water is limited, but it disperses well in feed mixtures. The extract contains a high percentage of crude protein, often ranging between 40-60%, along with residual lysine and other amino acids. The density of the powder is relatively low, making it easy to handle and mix. While it lacks a defined melting or boiling point due to its complex composition, the extract is stable under normal storage conditions. Its hygroscopic nature requires careful packaging to prevent moisture absorption.

Main Applications

The primary use of lysine residue protein extract is in animal feed, where it serves as a protein supplement for poultry, swine, and aquaculture. Its balanced amino acid profile supports growth and development in livestock, reducing the need for more expensive protein sources like soybean meal. Beyond feed, the extract finds applications in nutritional supplements for pets and livestock. Some agricultural uses include soil conditioning and organic fertilizer production, leveraging its nitrogen-rich composition. Research is also exploring its potential in biotechnological processes and biofuel production.

Safety and Storage

Lysine residue protein extract is generally considered safe for its intended uses, but proper handling is essential to minimize dust exposure, which can irritate the respiratory system. Workers should use masks and gloves when handling the powder. Storage should be in a cool, dry environment to prevent clumping and degradation. Bulk shipments often come in moisture-resistant bags or containers. Suppliers typically recommend using the product within 12 months of production to ensure optimal quality and nutritional value.

B2B Procurement Guide

When procuring lysine residue protein extract, buyers should prioritize suppliers with transparent production processes and quality certifications. Key specifications to verify include protein content, moisture levels, and absence of contaminants. Price fluctuations are common due to raw material availability and demand in the feed industry. Bulk purchases may offer cost advantages, but buyers should assess storage capabilities. Establishing long-term contracts with reliable suppliers can ensure consistent quality and supply chain stability.