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What is the difference between Bacteriological Agar, Pharmaceutical Agar, and USP Grade Agar?

The gel strength specifications for bacteriological agar and pharmaceutical agar differ slightly at their extreme ends, however, there is a wide overlap in the middle range. The specifications for these two agars also call for minor differences in the types of QC tests. Functionally, many bacteriological and pharmaceutical agars falling within the middle range of gel strength are interchangeable. USP agar conforms to the US Pharmacopeia Standard, and for most applications, bacteriological and/or pharmaceutical agar are sufficient.

What is Purified Agar? Noble Agar?

Purified Agar, also known as Noble Agar, is a highly purified specialty agar, practically clear and devoid of any nutritive value or reactive properties by design. Purified agar is typically used in immunodiffusion studies as well as in the fields of animal and plant cell culture.

What is the difference between bacteriological agar and food grade agar?

Bacteriological agar and food grade agar are respectively obtained from the gelidium and gracelaria species of seaweed. Both seaweeds are red species, however, gelidium grows in much more limited habitats and is consequently more costly than gracelaria. Attempts to grow bacteria on food grade agar (gracelaria) have been generally unsuccessful.

What is the minimum order quantity?

Our standard packaging is a 25kg sack.

How do I order samples?

Contact your sales representative to request samples. Usually, the sample size is 50g.

What is the maximum lot size?

The maximum lot size is 1,000kg.

What is the shelf life of agar?

Properly stored, agar can last up to 4 years.

What is the lead-time for an order?

It depends on the volume of agar you require. Please contact your sales representative.