Practical Food Microbiology 3rd Edition - Part 10

... tests 10. 1 Acid production from sugars 10. 2 CAMP test 10. 3 Catalase production 10. 4 Coagulase test 10. 5 Desoxyribonuclease production 10. 6 Gram reaction 10. 7 Haemolysis 10. 8 Hippurate hydrolysis 10. 9 ... hydrolysis 10. 9 Hydrogen sulphide test 10. 10 Indole test 10. 11 Motility test 10. 12 Nitrate reduction 10. 13 O129 sensitivity 10. 14 Oxidase test 10. 15 Spore stai...

Ngày tải lên: 18/10/2013, 00:15

... Diane Roberts, Melody Greenwood. 3rd ed. p. ; cm. Includes bibliographical references and index. ISBN 1-4 051 0-0 7 5-3 (alk. paper) 1. Food Microbiology. [DNLM: 1. Food Microbiology. QW 85 P895 2002] I. ... Laboratory Service (as in-house manual) 1986 Second edition 1995 Third edition 2003 Blackwell Publishing Ltd Library of Congress Cataloging-in-Publication Data Practical...

Ngày tải lên: 26/01/2014, 18:20

... 0-1 1-3 2177 7-3 ). No. 6 Prohibition Procedures (ISBN 0-1 1-3 2134 9-2 ). No. 7 Sampling for Analysis or Examination (Revised October 2000), Food Standards Agency, 2000 (ISBN 0-1 1-3 2135 1-4 ). No. 8 Food ... Legal Matters (ISBN 0-1 1-3 2135 3-0 ). No. 3 Inspection Procedures — General (ISBN 0-1 1-3 2135 5-7 ). No. 4 Inspection, Detention and Seizure of Sus...

Ngày tải lên: 26/01/2014, 18:20

... or Staphylococcus aureus m =10 3 , M =10 4 , n =5, c= 2 thermised milk Soft cheese (made from heat m =10 2 , M =10 3 , n=5, c =2 treated milk) Fresh cheese m =10, M= 10 2 , n =5, c=2 Cheese made ... =0 Coliforms (30°C) (guideline) m =10, M =100 , n =5, c =2 Staphylococcus aureus m= 10, M =100 , n =5, c =2 Colony count (30°C) (guideline) m =10 5 , M = 5 10 5 , n = 5, c = 2 n, the numb...

Ngày tải lên: 26/01/2014, 18:20

... dilutions Use the 10 -1 sample homogenate to prepare further decimal dilutions as re- quired by adding one part of the 10 -1 homogenate to nine parts of MRD to form the 10 -2 dilution. Do not ... (peristaltic homogeniser), a rotary food blender or a pulsifier as described below. For most products a 1 /10 (10 -1 ) sample suspension is prepared by mixing one part of...

Ngày tải lên: 26/01/2014, 18:20

... 10 5 /g (or log 10 5.0000). The measured count for the test is 1.3 10 5 /g (or log 10 5.1139). The measured count expanded by the uncertainty is: Log 10 4.9039 - log 10 5.3239 or 8.0 10 4 - ... dilution. Number of positive results Category when the 10 -1 10 -2 10 -3 MPN/g or mL number of tests is 1 95%CI 000 <3 0.0–9.4 0 0 1 3 3 0.1–9.5 0 1 0 3 2 0.1 10....

Ngày tải lên: 26/01/2014, 18:20

... described in Section 7.4, method 1. Chromogenic methods use the substrate 5-bromo-4-chloro-3-indolyl b- D-glucuronide (BCIG or X-b- D-glucuronide) which when cleaved forms insoluble coloured hydrolysis ... of fluorogenic or chromogenic substrates such as methylumbelliferyl b- D- glucuronide (MUG) and 5-bromo-4-chloro-3-indolyl b- D-glucuronide (BCIG) media (see method 7). The pathogenic strai...

Ngày tải lên: 26/01/2014, 18:20

... be performed. The col- iform test should be performed as described in Section 7.4, method 1 steps (a)–(j) using 10 -1 , 10 -2 and 10 -3 dilutions. Coliform counts below 100 cfu/mL are satisfactory. Pasteurized ... criteria. Colony counts below 10 5 cfu/g are satisfactory; counts exceeding 5 ¥ 10 5 cfu/g are unsatisfactory. Method 9 Coliform test Procedure (a) Prepare...

Ngày tải lên: 26/01/2014, 18:20

... the egg con- tents vigorously with an equal weight of BPW in a sterile wide-necked container. (b) Decant, if necessary, into a sterile flask of 1L capacity or a large wide-necked screw-capped container ... albumen with a sterile 10 mL pipette and transfer to a tared sterile con- tainer. Weigh the transferred albumen and add nine times the weight of BPW, then mix. This forms a 1 /10 homogena...

Ngày tải lên: 26/01/2014, 18:20

... medium, double and single strength 5-bromo-4-chloro-3-indolyl b- D-glucuronide (BCIG) agar. Tryptone bile agar contain- ing 144 mmol/L 5-bromo-4-chloro-3-indolyl-b-D glucuronic acid (e.g. 0.075 g/L ... shellfish harvesting areas, i.e. 10 -3 and 10 -4 . Procedure (i) Prepare 15 tubes of minerals modified glutamate medium, five containing 10 mL of double strength medium and 10 cont...

Ngày tải lên: 26/01/2014, 18:20