Logo
Login Sign Up
Current Revision

BSI PD CEN/TS 17716:2022

Plant biostimulants. Determination of Escherichia coli
Best Price Guarantee
Instant

$310.76

2-5 Days

$310.76

SAVE 10%

$559.37


Sub Total (1 Item(s))

$ 0.00

Estimated Shipping

$ 0.00

Total (Pre-Tax)

$ 0.00


View in Library
or
British Standards Institution Logo

BSI PD CEN/TS 17716:2022

Plant biostimulants. Determination of Escherichia coli

PUBLISH DATE 2022
PAGES 24
BSI PD CEN/TS 17716:2022
This document gives general guidelines for the detection and identification of the specified microorganism Escherichia coli in technical and formulated biostimulant products, both in liquid and solid state, and also the horizontal method for the enumeration of ß-glucuronidase-positive Escherichia coli in plant biostimulants products (both in liquid and solid state). The qualitative method described in this document is based on the detection of Escherichia coli in a non-selective liquid medium (enrichment broth), followed by isolation on a selective agar medium. Other methods can be appropriate, depending on the level of detection required. NOTE For the detection of Escherichia coli, subcultures can be performed on non-selective culture media followed by suitable identification steps (e.g. using identification kits). The quantitative method described in this document uses a colony-count technique at 44 °C on a solid medium containing a chromogenic ingredient for detection of the enzyme ß-glucuronidase. WARNING — Strains of Escherichia coli which do not grow at 44 °C and, in particular, those that are ß glucuronidase negative, such as Escherichia coli O157, will not be detected.
SDO BSI: British Standards Institution
Document Number CEN/TS 17716
Publication Date June 30, 2022
Language en - English
Page Count
Revision Level
Supercedes
Committee W/-
Loading...

Failed to load document history.

Publish Date Document Id Type View