{"id":385210,"date":"2024-10-20T03:29:38","date_gmt":"2024-10-20T03:29:38","guid":{"rendered":"https:\/\/pdfstandards.shop\/product\/uncategorized\/bs-en-157892021\/"},"modified":"2024-10-26T06:19:53","modified_gmt":"2024-10-26T06:19:53","slug":"bs-en-157892021","status":"publish","type":"product","link":"https:\/\/pdfstandards.shop\/product\/publishers\/bsi\/bs-en-157892021\/","title":{"rendered":"BS EN 15789:2021"},"content":{"rendered":"

This document specifies general rules for the enumeration of Saccharomyces cerevisiae in feeding stuffs (additives, premixtures and compound feeds excluding mineral feeds) that contain Saccharomyces cerevisiae as a single microorganism component or in a mixture with other microorganisms. Applying the method to premixtures and compound feeds with critical amounts of copper demands a special procedure (see Annex A). The document is not applicable to mineral feeds, which are defined as complementary feeding stuffs composed mainly of minerals and containing at least 40 % crude ash (Regulation (EC) 767\/2009) [3]. There are different categories of feed samples: a) Additives containing about 1010 colony forming units (CFU)\/g; b) Premixtures containing about 1011 CFU\/kg; c) Compound feeds, meal or pellets which contain about 109 CFU\/kg.<\/p>\n

PDF Catalog<\/h4>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
PDF Pages<\/th>\nPDF Title<\/th>\n<\/tr>\n
2<\/td>\nundefined <\/td>\n<\/tr>\n
7<\/td>\n1 Scope
2 Normative references
3 Terms and definitions <\/td>\n<\/tr>\n
8<\/td>\n4 Principle
5 Diluents and culture medium
5.1 Diluents <\/td>\n<\/tr>\n
9<\/td>\n5.2 Culture medium <\/td>\n<\/tr>\n
10<\/td>\n6 Apparatus <\/td>\n<\/tr>\n
11<\/td>\n7 Sampling
8 Preparation of test sample
9 Procedure
9.1 Preparation of poured agar plates for spread plate method
9.2 Preparation of YGC agar for pour plate method
9.3 Preparation of the initial suspension and decimal dilutions <\/td>\n<\/tr>\n
13<\/td>\n9.4 Inoculation and incubation of plates
9.4.1 General
9.4.2 Spread plate method
9.4.3 Pour plate method <\/td>\n<\/tr>\n
14<\/td>\n9.5 Enumeration of colonies
9.6 Confirmation
10 Expression of results <\/td>\n<\/tr>\n
15<\/td>\n11 Precision
11.1 General
11.2 Interlaboratory study
11.3 Repeatability
11.4 Reproducibility
12 Test report <\/td>\n<\/tr>\n
16<\/td>\nAnnex A (informative) Critical copper concentrations <\/td>\n<\/tr>\n
17<\/td>\nAnnex B (informative) Results of the interlaboratory study <\/td>\n<\/tr>\n<\/table>\n","protected":false},"excerpt":{"rendered":"

Animal feeding stuffs: Methods of sampling and analysis. Detection and enumeration of Saccharomyces cerevisiae used as feed additive<\/b><\/p>\n\n\n\n\n
Published By<\/td>\nPublication Date<\/td>\nNumber of Pages<\/td>\n<\/tr>\n
BSI<\/b><\/a><\/td>\n2021<\/td>\n20<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":385218,"template":"","meta":{"rank_math_lock_modified_date":false,"ep_exclude_from_search":false},"product_cat":[2641],"product_tag":[],"class_list":{"0":"post-385210","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-bsi","8":"first","9":"instock","10":"sold-individually","11":"shipping-taxable","12":"purchasable","13":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product\/385210","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/types\/product"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media\/385218"}],"wp:attachment":[{"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/media?parent=385210"}],"wp:term":[{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_cat?post=385210"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/pdfstandards.shop\/wp-json\/wp\/v2\/product_tag?post=385210"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}