Description

Lactobacillus delbrueckii is a well-characterized, rod-shaped, Gram-positive bacterium belonging to the lactic acid bacteria (LAB) group. This probiotic strain is valued for its robust metabolic activity, primarily converting sugars into lactic acid, which is fundamental to fermentation processes and gut health modulation. It is a critical component for manufacturers in the dairy, probiotic supplement, and functional food industries, where consistent strain purity and viability are paramount for product efficacy and quality.

Application

• Dairy Fermentation: Primary starter culture for the production of yogurt, cheeses (like Emmental and Gruyère), and other fermented milk products.
• Probiotic Supplements: Formulated into capsules, tablets, and powders to support digestive health and immune function.
• Functional Foods & Beverages: Incorporated into juices, cereal bars, and other fortified foods to enhance probiotic content.
• Animal Feed & Aquaculture: Used as a direct-fed microbial to promote gut health and growth performance in livestock and aquaculture species.
• Pharmaceutical Preparations: Utilized in the development of specific therapeutic probiotic formulations and medical foods.
• Biotechnological Processes: Serves as a host for the production of enzymes, vitamins, and other bioactive compounds.

Basic Information

Product Name	Lactobacillus delbrueckii
CAS No.	68919-91-5
Molecular Formula	N/A (Microbial Strain)
Molecular Weight	N/A (Microbial Strain)
Synonyms	Lactobacillus delbrueckii subsp. bulgaricus; Lactobacillus bulgaricus; L. delbrueckii; Lactobacillus delbrueckii subsp. lactis; Bulgarian bacillus; Probiotic strain LB; Lactic acid bacterium LB; DSM 20081; ATCC 11842
EINECS	Contact for details

Quality Control

Our Lactobacillus delbrueckii is produced under strict quality management systems. Each batch undergoes rigorous testing for strain identity (via genetic methods), purity, viability (CFU count), and the absence of specified contaminants. We provide full traceability and Certificates of Analysis (COA) to support compliance with relevant standards for food, dietary supplement, and pharmaceutical applications.

Storage

Preserve in a tightly closed container, protected from light. For long-term stability, store frozen at -20°C or below. Under these conditions, the product is hygroscopic (moisture-sensitive). Avoid repeated freeze-thaw cycles. For active use, follow recommended propagation protocols.

Specification

Item	Specification
Appearance	White to off-white lyophilized powder or frozen pellet
Identification	Conforms to Lactobacillus delbrueckii by PCR/sequencing
Viable Count (CFU/g)	≥ 1.0 x 10^10 (or as specified per grade)
Purity (Culture)	≥ 99%
Water Content (Karl Fischer)	≤ 5.0%
Pathogen Tests	Negative for E. coli, Salmonella, S. aureus
Total Aerobic Microbial Count	Meets target specification
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.