Select premium microbial grade biological nitrogen sources direct from our manufacturing facility.
Established in 2008 in the China (Beijing) Pilot Free Trade Zone Science and Technology Innovation Area, Beijing Hongrun Baoshun Technology Co., Ltd. has evolved into a modern high-tech enterprise integrating advanced biochemical research and development, smart manufacturing, and global business operations. Holding dual national credentials as a "High-tech Enterprise" and a "Zhongguancun High-tech Enterprise", we are committed to providing the global market with premium-grade microbial culture media and high-efficiency organic nitrogen sources.
To support global B2B procurement demands, in 2018 we expanded our manufacturing operations by establishing a state-of-the-art production base in the Qili Industrial Park in Langzhong, Sichuan. Spanning over 40,000 square meters of specialized plant area and 20,000 square meters of intelligent storage, the facility runs dedicated, separated animal-derived and plant-derived production lines. With more than 100 seasoned biotechnology experts, we guarantee high batch-to-batch consistency, custom-designed parameters, and rigorous safety profiles under ISO9001:2015 and MUI Halal certification.
Yeast Extract Paste (YEP), a high-viscosity biological compound derived from the autolysis of Saccharomyces cerevisiae or alternative culture strains, has transitioned from a basic culinary seasoning into one of the most critical inputs in industrial biotechnology, bioremediation, functional food manufacturing, and animal nutrition.
In the global market, Yeast Extract Paste acts as a superior source of organic nitrogen, trace vitamins (particularly the B-complex group), purine/pyrimidine bases, and essential bio-stimulants. Compared to its spray-dried powder counterpart, Yeast Extract Paste retains a higher concentration of heat-sensitive active compounds. Because it undergoes a milder concentration step under vacuum evaporation rather than the intense thermal stress of spray drying, the integrity of peptides, growth factors, and volatile flavor precursors is significantly preserved.
Today, the commercial demand for yeast extract paste is skyrocketing due to three global industrial megatrends:
Milder processing temperatures preserve delicate vitamins, micronutrients, and peptides that enhance fermentation velocity.
Contains a balanced distribution of low-molecular-weight peptides and free amino acids, ideal for rapid microbial assimilation.
Direct supply from manufacturing sites bypasses the costly spray-drying process, optimizing industrial margins.
The production of industrial-grade yeast extract paste is a complex biochemical process centered on controlled cellular degradation. Our manufacturing facilities utilize a standardized enzymatic pathway to convert whole yeast cells into highly soluble paste nutrients.
Selected strains of Saccharomyces cerevisiae are cultivated in optimized culture media containing beet/cane molasses or starch hydrolysates under intensive aeration. Temperature, pH, and dissolved oxygen levels are maintained via automated PLC systems to maximize cell density and rich intracellular RNA content.
Once harvest density is achieved, the cells are concentrated through centrifugation. Plasmolysis is induced using food-grade physical-chemical triggers, raising the temperature to activate the endogenous intracellular enzymes (primarily proteases, nucleases, and glucanases). Under controlled conditions, these enzymes hydrolyze the yeast's structural and metabolic proteins into water-soluble peptides, amino acids, and nucleic acids.
For specialized applications, exogenous food-grade enzymes (such as papain or specialized peptidases) are added to adjust the free amino nitrogen (AN) to total nitrogen (TN) ratio, or to optimize the nucleotide content (enhancing the ratio of 5'-IMP and 5'-GMP).
The insoluble cell walls (mainly glucans and mannans) are separated from the soluble nutrient broth using high-speed industrial decanters and disc stack centrifuges. This stage is crucial: it ensures the final Yeast Extract Paste is 100% soluble and free from turbidity-causing particulate matter, which is a key requirement for clear liquid fermentation media.
The clarified soluble fraction is subjected to multi-effect falling film vacuum evaporators. Concentrating the liquid at low temperature under vacuum prevents thermal degradation and biological Maillard browning, yielding a stable, viscous paste with a dry matter content typically ranging from 70% to 80%.
Our Yeast Extract Paste is formulated to function seamlessly across a range of local and global industrial matrices. Here is how our materials perform in key targeted sectors:
In industrial fermentation, Yeast Extract Paste is the premier source of ready-to-assimilate nitrogen. It is used in large-scale antibiotic synthesis, amino acid fermentation (e.g., L-lysine, L-glutamate), enzyme production, and recombinant proteins. The natural B-vitamin profile promotes rapid cell division, reducing lag phase duration and improving overall yield.
Culturing highly sensitive lactic acid bacteria (e.g., Lactobacillus, Bifidobacterium) requires highly bioavailable growth stimulants. The nucleotides and trace peptides in yeast extract paste act as cofactor precursors, ensuring high viable cell counts during biomass concentration.
With high glutamate content and natural 5'-nucleotides, Yeast Extract Paste delivers a clean, vegan-friendly savory backdrop. It enhances salt perception, masks off-notes from soy or pea proteins, and forms the fundamental base for instant noodles, chips, soups, and ready-to-eat meals.
Used in organic fertilizers and bio-pesticides, YEP acts as an active carbon-nitrogen food source for beneficial soil bacteria (such as Bacillus subtilis). It accelerates compost activation and triggers root growth promotion mechanisms in high-yield agriculture.
Purchasing raw fermentation materials in bulk requires a trusted supplier that combines regulatory compliance, technical customizability, and absolute supply chain security. Here is how we deliver value:
We provide microbial fermentation raw materials from animal, plant, and yeast sources, including specialized peptones, extracts, and customized pastes.
Separate animal and plant lines ensure no cross-contamination. Our 40,000㎡ Sichuan plant features state-of-the-art biological extraction equipment.
With 20,000㎡ of warehouse space and modern logistics channels, we maintain strategic safety buffers to avoid supply shocks for our global clients.
Our raw materials comply with strict international regulatory profiles, ensuring global market entry for your final products.
We provide free testing samples up to 500g per product (shipping fees excluded) to ensure our parameters match your laboratory or factory requirements.
Backed by our 5 specialized subsidiaries—Beijing Yaoyou Technology, Sichuan Baoshun Biotech, Sichuan Romgee Biotech, Sichuan Yingwen Tech, and Sichuan Runxiaobao Tech.
To maintain our leadership position, Beijing Hongrun Baoshun Technology Co., Ltd. continuously invests in downstream separation and purification technologies. Our R&D team, working with academic partners, focuses on three core areas:
By introducing ultrafiltration and nanofiltration steps prior to concentration, we can precisely select target peptide molecular weight distributions (e.g., keeping 90% of peptides below 1,000 Daltons). This ensures faster microbial assimilation and decreases fouling in downstream industrial culture media filtration.
Using tailored combinations of nucleases and deaminases, we are designing yeast extracts optimized for specific culture types—such as hyper-yield vaccine cultivation or flavor profiles that mimic specific roasted meat profiles without using animal inputs.
Our Langzhong plant is piloting circular practices where co-product streams from yeast autolysis (like cell-wall glucans) are purified for feed additives, reducing environmental impact and driving down production costs.
For industrial buyers, quality consistency is paramount. Below are our standardized QC parameters for export-grade Yeast Extract Paste:
| Parameter | Standard Target Range | Testing Method |
|---|---|---|
| Dry Matter (Total Solids) | 70% - 80% ± 2.0% | Oven Drying at 105°C |
| Total Nitrogen (TN on Dry Base) | ≥ 10.0% | Kjeldahl Method |
| Amino Nitrogen (AN on Dry Base) | ≥ 3.5% | Formaldehyde Titration |
| pH (2% Aqueous Solution) | 5.0 - 7.0 | Potentiometric |
| Total Ash Content | ≤ 15.0% | Muffle Furnace Combustion |
| Heavy Metals (as Pb) | ≤ 10 ppm | AAS / ICP-MS |
Further catalog options for laboratory cultivation and large-scale industrial bioreactor setups.
Hongrun Baoshun
