Alkaline Peptone Water (APW) serves as an essential, non-selective enrichment medium utilized to optimize the recovery and propagation of Vibrio species—specifically *Vibrio cholerae* and *Vibrio parahaemolyticus*—from various clinical specimens, ecological samples, and food products. The physiological profile of the Vibrio genus allows it to tolerate highly alkaline environmental conditions, whereas most competing enterobacteriaceae are severely inhibited at higher pH levels.
Formulation Dynamics: The typical composition relies on highly standardized enzymatic digests of protein (peptone) to deliver fundamental nitrogen sources, carbon networks, vitamins, and trace elements. The elevated sodium chloride concentration provides essential osmotic balance and ionic strength, simulating the natural brackish or marine habitats of Vibrio species.
As a leading wholesale manufacturer and scale-capable factory, we engineer our Alkaline Peptone Water products to maintain an exact pH of 8.6 ± 0.2 at ambient 25°C. This strict compliance with ISO 21872 standard practices prevents unexpected pH drift during autoclaving and distribution, ensuring reliable laboratory diagnostic pathways and high-performance industrial microbiology applications.
Developing robust, commercial-grade Alkaline Peptone Water demands rigorous control over peptide structures, free amino acid profiles, and ionic consistency.
The peptone source dictates the richness of the enrichment medium. We utilize animal-derived peptone and premium plant-based alternatives to supply custom nitrogen complexes. These support rapid microbial repair and cell division in low-inoculum specimens.
To retain the strict 8.6 pH over extended storage, our dehydrated formulations are balanced with select alkalizing elements. This inhibits competitive intestinal flora, such as *Escherichia coli*, while maintaining the growth curve of *Vibrio* pathogens.
By adjusting NaCl concentrations up to 2.0% in specific variants, our formulations mimic natural marine dynamics. This increases the sensitivity of detection assays in imported aquaculture seafood testing, satisfying strict global food safety requirements.
Industrial demand for Alkaline Peptone Water has surged with the expansion of international seafood trade and regulatory oversight of biological products. Global food safety regulatory bodies, including the European Food Safety Authority (EFSA) and the US FDA, mandate rigorous testing for halophilic *Vibrio* species in imported shellfishes, shrimp, and related marine exports.
To support this worldwide demand, our high-volume production facilities supply consistent culture media to clinical laboratories, contract research organizations (CROs), and processing plants across multiple continents. By integrating animal-derived and plant-derived peptone manufacturing lines, we offer custom raw materials that satisfy both performance requirements and religious dietary guidelines.
Founded in 2008 in the China (Beijing) Pilot Free Trade Zone Science and Technology Innovation Area, Beijing Hongrun Baoshun Technology Co., Ltd. has developed into a leading high-tech enterprise. We integrate research, development, high-volume production, and global supply of advanced microbial culture media raw materials.
Our manufacturing presence extends to the Qili Industrial Park in Langzhong, Sichuan. Spanning over 40,000 square meters of production space across Phase I and Phase II, our plant is supported by dedicated, independent animal-derived and plant-derived processing lines.
Through our five active subsidiaries—Beijing Yaoyou Technology, Sichuan Baoshun Biotechnology, Sichuan Romgee Biotechnology, Sichuan Yingwen Technology, and Sichuan Runxiaobao Technology—we maintain absolute control over the quality chain. From raw extraction to the final dehydrated culture media powder, we guarantee consistent quality, batch after batch.
Exporting culture media worldwide requires strict adherence to international regulations, validation, and specialized technical support.
Our plants are fully certified under ISO 9001:2015 Quality Management Systems. To serve diverse global markets, we also maintain MUI Halal compliance. This allows our partners to seamlessly integrate our products into certified consumer testing lines.
We configure custom osmolarity, salt ratios, and alternative nitrogen bases to meet specific client requirements. Our technical team works directly with clients to refine peptone-to-salt configurations for target strain optimizations.
We provide complimentary validation samples up to 500g per product (excluding shipping fees). This program allows laboratories and manufacturing facilities to run analytical comparisons before initiating wholesale orders.
The fields of clinical diagnostics and food microbiology are shifting toward automation and rapid testing workflows. Classic enrichment steps using Alkaline Peptone Water remain critical. This is because they revive injured, dry, or frozen microbial cells before plating or PCR amplification.
Our research team focuses on developing next-generation dry-powder culture media. This media is designed to dissolve rapidly, support clean filtration, and produce minimal background noise for laser-based scattering detectors and real-time spectrophotometric platforms.
Get answers to common technical queries about the preparation, storage, and performance verification of Alkaline Peptone Water.
Hongrun Baoshun