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BS EN ISO 30024:2024

$142.49

Animal feeding stuffs. Determination of phytase activity

Published By Publication Date Number of Pages
BSI 2024 32
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This document specifies the determination of phytase activity in feeding stuff samples, including feed raw materials from plant origin, compound feeds (complete, complementary, mineral feeds), premixtures and feed additives. The method is applicable to, and is collaboratively validated for, the determination of phytase activity in complete feed, complementary feed including mineral feed, premixtures and feed additives. The method does not distinguish between phytase added as a feed additive and endogenous phytase already present in the feed materials. Therefore, the method is also applicable for feed materials from plant origin. The method does not apply to evaluating or comparing the in vivo efficacy of the phytase product. It is not a predictive method of the in vivo efficacy of phytases present on the market as they can develop different in vivo efficacy per unit of activity.

PDF Catalog

PDF Pages PDF Title
2 undefined
14 8.1 For compound feeds (excluding mineral feeds)
8.2 For mineral feeds and premixtures
8.3 For feed additives
15 9.1 General
9.2 Blank solution
9.3 Standards
9.3.1 Phosphate standard solution
9.3.2 Phytase level control
9.4 Standard curve
16 9.5 Phytase level control
17 9.6 For compound feed (excluding mineral feeds)
18 9.7 For mineral feeds and premixtures
9.8 For feed additives
19 10.1 Formulation of standard curve
20 10.2 Calculation of phytase activity
21 10.3 Correction for phytic acid purity and water content
22 10.4 Interference with blank values
11.1 Limit of detection and limit of quantification
11.2 Interlaboratory tests
11.3 Repeatability
23 11.4 Reproducibility
BS EN ISO 30024:2024
$142.49