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High Purity Composite Spores

Updated: 2026-07-19

Overview

High-purity composite bacillus is a microbial formulation combining multiple Bacillus species, such as Bacillus subtilis, Bacillus licheniformis, and Bacillus megaterium. These strains are selected for their complementary functions, including organic matter decomposition, pathogen suppression, and nutrient cycling. The product is widely used in sustainable agriculture and environmental management due to its eco-friendly profile and efficacy. The preparation undergoes rigorous fermentation and purification processes to ensure high spore counts (typically ≥10^9 CFU/g) and minimal contaminants. Its versatility makes it suitable for diverse industries, from crop cultivation to industrial wastewater treatment.

Physical and Chemical Properties

The product typically appears as a fine, odorless powder or liquid suspension. Powder forms are hygroscopic and require moisture-proof packaging. Key chemical properties include stability across a pH range of 5–9 and tolerance to temperatures up to 60°C, ensuring viability in varied environments. Spore-forming ability allows long-term survival under adverse conditions, with reactivation upon exposure to water and nutrients. Solubility in water facilitates easy application, while carrier materials (e.g., peat or starch) enhance shelf life and handling.

Main Applications

In agriculture, composite bacillus promotes soil health by breaking down organic residues, fixing nitrogen, and suppressing fungal pathogens like Fusarium. It reduces reliance on chemical fertilizers and pesticides, aligning with organic farming standards. Aquaculture systems use it to degrade excess feed and fecal matter, preventing ammonia spikes. Environmental applications include composting acceleration and bioremediation of oil-contaminated soils. Industrial sectors employ it for sludge reduction in wastewater treatment plants.

Safety and Storage

While generally recognized as safe (GRAS), the product may cause respiratory irritation if inhaled as powder. Storage in sealed containers below 30°C is critical to maintain potency. Avoid freezing liquid formulations to prevent cell rupture. Regulatory compliance varies by region; ensure products meet local microbial standards (e.g., EPA in the U.S., EC No 1107/2009 in the EU). Labeling should include strain identifiers, CFU counts, and expiration dates.

B2B Procurement Guide

Buyers should prioritize suppliers with ISO-certified production facilities and third-party lab testing reports. Key metrics include spore viability over time (shelf-life testing) and absence of contaminants like E. coli. Bulk purchases (e.g., 25 kg drums) often offer cost savings, but sample testing is recommended. Specify strain ratios (e.g., 1:1:1 for B. subtilis:B. licheniformis:B. megaterium) based on application needs. Contracts may include viability guarantees for 12–24 months.

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