Description
Synonyms: Detection Agar for bacterial beer spoiler, Pedi-Lacto Selective Beer Agar, NBB Agar
DESCRIPTION
Application
Selective medium used for the detection of contaminating/spoilage microorganisms in brewery.
Preparation Note
Suspend 66,3 grams of the medium in 500 ml of distilled water and 500 ml of beer without gas. Mix well. Heat for one minute with frequent agitation until the medium is completelydissolved. Sterilize in autoclave at 121°C for 15 minutes. Cool at 50°C and pour into Petri dishes.
PROPERTIES
sterility
non-sterile
Pack Size
500g
form
powder
shelf life
limited shelf life, expiry date on the label
composition
bacteriological Agar, 15 g/L
beef extract, 2 g/L
chlorophenol red, 0.07 g/L
L-cysteine hydrochloride, 0.2 g/L
dextrose, 15 g/L
disodium phosphate, 2 g/L
L-malic acid, 0.5 g/mL
maltose, 15 g/L
pancreatic digest of casein, 5 g/L
polysorbate 80, 0.5 g/L
potassium acetate, 6 g/L
yeast extract, 5 g/L
manufacturer/tradename
NutriSelect® Plus
technique(s)
microbiological culture: suitable
final pH
5.8±0.2 (25 °C)
application(s)
bioburden testing
food and beverages
microbiology
suitability
Leuconostoc spp.
Pediococcus spp.
selective for Lactobacillus spp.
selective for Lactococcus spp.
Legal Information
GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany
NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany
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