75405

Orange-serum Agar

suitable for microbiology, NutriSelect^® Basic

• UNSPSC Code: 41171607
• NACRES: NA.74

Properties

• sterility: non-sterile
• Quality Level: 100
• form: powder
• shelf life: limited shelf life, expiry date on the label
• composition: agar, 17 g/L ; casein peptone, 10 g/L ; dipotassium hydrogen phosphate, 3 g/L ; D(+)-glucose, 4 g/L ; orange extract, 5 g/L ; yeast extract, 3 g/L
• manufacturer/tradename: NutriSelect^® Basic
• technique(s): microbiological culture: suitable
• final pH: 5.5±0.2 (25 °C)
• application(s): bioburden testing; environmental; food and beverages; microbiology
• suitability: selective by low pH for Aspergillus spp.; selective by low pH for Bacillus spp.; selective by low pH for Candida spp.; selective by low pH for Lactobacillus spp.; selective by low pH for Penicillium spp.; selective by low pH for Saccharomyces spp.; selective by low pH for aciduric bacteria; selective by low pH for bacteria (General Media); selective by low pH for molds (General Media); selective by low pH for yeasts (General Media)

Description

Application

Orange-serum Agar can be used for the isolation, cultivation and enumeration of acid-tolerant spoilage microorganisms in fruit juice and fruit juice concentrates, in particular from citrus fruit, according to Hays, Troy and Beisel.
The prepared agar may be turbid after autoclaving due to orange extract.
Orange-serum Agar has been used to prepare modified orange serum (MOS) as a medium for Hymenoscyphus fraxineus.

Preparation Note

Dissolve 42 g in 1 litre distilled water. Autoclave gently at 115°C for 15 minutes taking care not to overheat. The prepared agar may be turbid after autoclaving due to orange extract.

Footnote

We offer two media types: the superior granulated GranuCult^® and the cost-efficient powdered NutriSelect^® culture media, depending on your needs.
The designations basic, plus, or prime are added to indicate the quality control level, from basic quality control to standard QC plus to prime for full regulatory compliance.

Legal Information

GRANUCULT is a registered trademark of Merck KGaA, Darmstadt, Germany

NutriSelect is a registered trademark of Merck KGaA, Darmstadt, Germany

Safety Information

• Storage Class Code: 11 - Combustible Solids
• WGK: WGK 3
• Flash Point(F): Not applicable
• Flash Point(C): Not applicable
• Personal Protective Equipment: dust mask type N95 (US), Eyeshields, Gloves