Siebel Testing and Media

Siebel Institute Testing

The Siebel Institute of Technology has moved its Laboratory Services Division from its North Chicago location to its new home in the facilities of White Labs in San Diego.

"Through the combined expertise of Siebel Institute and White Labs, we will continue our over 130 years of providing the full range of analytical services to the international brewing industry," Siebel says.

To review the Siebel Laboratory Services catalog, visit here.

Siebel Institute Media

The Siebel Institute produces a complete range of media that will detect wild yeast and the most common bacteria encountered in breweries and related facilities. White Labs is pleased to offer these media to our customers. White Labs technicians are experts with all of the following laboratory media. Write us for more information.

Bacterial Detection Media:

HLP Media

(Hsu's Lactobacillus/Pediococcus Medium)

Enables selective counting of lactic acid bacteria. Many lactic acid bacteria can be detected in as little as 48 hours. Differentiation of Lactobacillus and Pediococcus can be made after 5 days of incubation. HLP is a simple test for the most common beer spoiling bacteria, requiring minimal lab equipment. Anaerobic incubation equipment and an autoclave are not required.

White Labs Catalog Number Size
TK3800 500 gram bottle
10 or more
LMDA/SDA

(Lee's Multi-Differential Agar/Schwarz Differential Agar)

A nutrient medium that will detect most organisms commonly encountered in a brewery. Acid producing bacteria are identified by the development of a clear zone around the colonies. Further identification is facilitated by the characteristic color reactions. Cycloheximide (actidione) may be added to the medium to suppress the growth of culture yeast.

White Labs Catalog Number Size
TK3507 500 gram bottle
  10 or more 5% discount
Wild Yeast Detection Media:

LWYM

(Lin's Wild Yeast Medium)

For detection and quantitative determination of wild yeast populations in brewing culture yeast. Approximately 1 million culture yeast is plated on LWYM. The growth of culture yeast is suppressed by the media. Wild yeast grow as larger distinct colonies. This medium is designed to encourage the growth of Saccharomyces wild yeast. A number of non-Saccharomyces yeast will also grow on this medium.

White Labs Catalog Number Size
TK3505 200 gram bottle
15 or more  Discount applies
LCSM

(Lin's Cupric Sulfate Medium)

For detection and quantitative determination of wild yeast populations in brewing culture yeast. Approximately 1 million culture yeasts are plated on LCSM. The medium is designed to encourage the growth of non-Saccharomyces yeasts. A number of Saccharomyces wild yeasts will also grow on this medium. Incubation time is 4-6 days.

White Labs Catalog Number Size
TK3701 200 gram bottle
15 or more Discount applies
 

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