OFS Agar and SSL Broth

Reliable detection of beverage-spoiling microorganisms

Yeasts, in particular fermentable yeasts, moulds, lactic and acetic acid bacteria, are among the most common product-spoiling microorganisms in non-alcoholic beverages such as soft drinks, beverages containing fruit juice, tea drinks etc., but also in acidic mixes with beer, wine or milk.

OFS Agar (orange serum agar) is a ready-to-use agar medium for the quantitative detection of mesophilic and acidophilic microorganisms in beverages (pH values < 4.3) or rinse waters. Instead of powders, Döhler uses real orange juice concentrate to achieve the ideal nutrient composition for fast growth. In addition to the low pH value of 5.0, the citrus essences and oils contained in the medium inhibit irrelevant accompanying flora.

SSL Broth was developed by Döhler as a ready-to-use liquid medium. It can be used for the partially selective pre-enrichment of large sample volumes or samples which cannot be filtered using a membrane, thereby enabling even trace amounts of contamination to be detected.

The combination of pre-enrichment using SSL and a subsequent pour plate with OFS is one of the most reliable methods with the highest degree of safety when it comes to analysing microbiologically sensitive beverages and raw materials, such as fruit juice concentrates and preparations (e.g. osmophilic yeasts).

Benefits of productApplication benefits
- Ready-to-use agar media- Selective enrichment
- Functional testing as per ISO 11133- Flexible use
- Natural raw materials- Total bacterial count in approx. 3 days

Order information

ProductArticle no. Packaging
OFS Agar204.707.7829 x 250 ml in glass bottles
SSL Broth204.712.7829 x 250 ml in glass bottles

Further product recommendations

Please contact the following distributors or Döhler directly.

ChinaShanghai Sunny Biological Science
and Technology Co.Ltd
Room 1706, No.1619 Dalian road,
Hongkou District,
yhq@shennei.com+86 021 65190298 8016

Avantor SEA

18 Gul Drive
Singapore 629468
tharachaya.woraraktiwongs@avantorinc.com+66 95 5626963
MongoliaMonbiopharm Co. Ltd.Sukhbaatar District - 4 khoroo 1-69
First 40000
info@monbiopharm.mn+976 11 330234
BrazilProzyn Indústria e Comércio LtdaRua Dr. Paulo Leite de Oliveira, 199
São Paulo/SP
flavio.melo@prozyn.com.br+55 11 3732 0000
BrazilMerseR. Domingos Cazotti, 284
Jd. Santa Genebra - Campinas/SP 
valkiria@merse.com.br+55 193733 3800
USAWeber Scientific2732 Kuser Road
Hamilton, NJ, 08691
swilson@weberscientific.com+1 609 249 1408
USAWhite Labs9495 Candida St
San Diego, CA 92126
nparker@whitelabs.com+1 858 527 7358
USABSG9650 East 40th Ave
Denver, CO 80238
rnelson@bsgcraftbrewing.com+1 303 574 8955
CanadaProSource Scientific5370 Canotek Road Unit 11
Ontario K1J 9E7
duane@psscientific.com+1 866 939 9959
FranceLaboratories HumeauZA Gesvrine - 4 rue Kepler BP 4125
44241 La Chapelle-sur-Erdre Cedex
m.minier@humeau.com+33 2 40 93 53 53
FranceBrewpark sasRue des Colinettes
ZI Mardeuil, 51530 Mardeuil
michael.gelender@brewpark.com+33 3 26 55 82 89
ItalySacco S.r.l.Via A. Manzoni 29/A
22071 Cadorago
p.berardinetti@saccosrl.it+39 031 8866607
LatviaSnapTest.LV SIAValmieras iela 31B
Rīga, LV-1009
gints@snaptest.lv+371 26 53 47 45
United KingdomTrafalgar Scientific Ltd190 Waterside Rd, Leicester LE5 1QZasmith@trafalgarscientific.co.uk +44 116 287 9460
NetherlandsSBI EuropeKraaiondonk 44
5428 NZ Venhorst
The Netherlands
pvanrooij@sbi4beer.com+31 413 783 880
all European countriesVWR InternationalHilpertstraße 20a
64295 Darmstadt
info.de@vwr.com+49 800 702 00 07
all other countriesDöhler GmbHRiedstraße 7-9
64295 Darmstadt
dmd@doehler.com+49 (0)6151 3060

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