chapter32 food microbiology

... Shigella 6. 13 ᭿ Yeasts and moulds 6.17 3. 19 Pre-prepared foods — chilled and frozen Ready-to-eat foods Low temperature storage has been used for many years as a means of preserving food [67] Refrigeration, ... Shigella spp 6. 13 ᭿ Yeasts and moulds 6.17 Microbiological criteria for ready-to-eat foods PHLS guidelines for ready-to-eat foods at retail sale: applicable across a wide range of foods in Section ... (b) Ice-cream lollies [36 ] which consist of ice-water lolly mixture on the outside, with a centre of ice-cream The ice-water mixture should be examined separately from the ice-cream (c) Ice-milk...

... from: PHLS Food EQA Schemes, Food Safety Microbiology Laboratory, PHLS Central Public Health Laboratory, 61 Colindale Avenue, London NW9 5HT Tel: 0208 20 044 00; Fax: 0208 20082 64; E-mail: foodeqa@phls.nhs.uk ... Great Britain Statutory Instrument No 246 3 The Food Safety (Sampling and Qualifica- tions) Regulations 1990 London: HMSO, 1990 BS EN ISO 688 7-1 Microbiology of Food and Animal Feeding Stuffs — Preparation ... Professional, 19 94 13 ISO 13369 Microbiology of food and animal feeding-stuffs — Horizontal method for the determination of water activity Geneva: International Organization for Stan- 14 dardization...

... when the 1 0-1 1 0-2 1 0-3 0 0 150 and £ 167 with cc n £ 150 no cc n < 15 with cc Less than 1/d1 Weighted mean n > 167 with cc n < 15 with cc Arithmetic mean d2 n > 150 with cc n > 150 with cc More than 150 ¥ 1/d2 n > 150 ...

... ++ - - - V V + + + + - + - L seeligeri L grayi L murrayi (now a (+) - + + + V + - V NS NS (+) - - D-mannitol MM CAMP test with: D-xylose Acid produced from: L-rhamnose Nitrate reduction b-haemolysis ... described in Section 7.4, method Chromogenic methods use the substrate 5-bromo-4-chloro-3-indolyl b-D-glucuronide (BCIG or X-bD-glucuronide) which when cleaved forms insoluble coloured hydrolysis ... presence of b-glucuronidase producing organisms by the cleavage of fluorogenic or chromogenic substrates such as methylumbelliferyl b-Dglucuronide (MUG) and 5-bromo-4-chloro-3-indolyl b-D-glucuronide...

... BS ISO 1186 6-2 Milk and Milk products Enumeration of Presumptive Escherichia coli Part Most Probable Number Technique Using 4methylumbelliferyl-b-D-glucuronide (MUG) London: BSI, 19 97 11 British ... examine for reactivation by pre-treating the sample as described in Section 7. 1, method 3b and then re-test for phosphatase activity by Section 7. 1, method 3a [13,14] Method 7b Fluorimetric method Examine ... performed as described in Section 7. 4, method steps (a)–(j) using 1 0-1 , 1 0-2 and 1 0-3 dilutions Coliform counts below 100 cfu/mL are satisfactory Pasteurized milk-based drinks In addition to the...

... BPW in a sterile wide-necked container (b) Decant, if necessary, into a sterile flask of L capacity or a large wide-necked screw-capped container and incubate at 37°C for 18 ± h (c) Put the shells ... wide-necked container Discard the shells (d) Decant the egg mixture, if necessary, into a sterile flask of L capacity or a large wide-necked screw-capped container and incubate at 37°C for 18 ± ... quantity of sample to test ¥ 18 mL by the multiple tube method (Section 5.7, method 1) (b) (c) (d) (e) Add 18 mL to each of six jars containing 180 mL of BPW Incubate for 18 ± h at 37°C Subculture...

... medium, double and single strength 5-bromo-4-chloro-3-indolyl b-D-glucuronide (BCIG) agar Tryptone bile agar containing 144 mmol/L 5-bromo-4-chloro-3-indolyl-b-D glucuronic acid (e.g 0.075 g/L ... Dis Public Health 199 8; 1: 188 96 ISO 1070 5-1 (BS 606 8-4 Part 11 199 6) Water Quality Microbiological Methods Detection and Enumeration of Bacteriophages Part 1: Enumeration of F-specific RNA Bacteriophages ... October 199 7 amending the annex to Directive 91 / 492 /EEC laying down the health conditions for the production and placing on the market of live bivalve molluscs Off J Eur Communities 199 7; L 295 : 35–6...

... v INTERNATIONAL STANDARD ISO 6579:2002(E) Microbiology of food and animal feeding stuffs — Horizontal method for the detection of Salmonella spp WARNING — In order to safeguard the health of ... Members of ISO and IEC maintain registers of currently valid International Standards ISO 6887-1, Microbiology of food and animal feeding stuffs — Preparation of test samples, initial suspension and ... is taken in the disposal of all incubated materials Scope This International Standard specifies a horizontal method for the detection of Salmonella, including Salmonella Typhi and Salmonella Paratyphi...

... 5:12 PM C# Fast Food http://hoclaptrinh.vn /C- C++-Visual -C/ C -Fast- Food/ In.html { x++; } unchecked { x++; } } -Switch Trong C# , c u lệnh switch thay đổi sau: 1.Sau th c thi c u lệnh case, chương ... null, không chuyển đổi //kiểu Vehicle veh = shp as Vehicle; Circle cir = new Circle(); Shape shp = cir; //sẽ chuyển đổi Circle cir2 = shp as Circle; object[] objects = new object[2]; objects[0] = ... struct Đó quy định C+ +, C# không c n Namespaces Mỗi class gói lại namespace Thật ra, namespaces khái niệm C+ +, C# dùng namespaces thường xuyên C c bạn truy xuất class namespaces c ch dùng dấu chấm...

... et al, 1991 Sensory evaluation techniques CRC Press Jellinek, 1985 Sensory evaluation of food- Theory and practice The Camelot Press Germany Larmond E., 1997 Laboratory methods for sensory evaluating ... • Sản phẩm (tự nhiên, nhân tạo) FOOD TECHNOLO OGY Thực phẩm • Nước, protid, lipid, glucid FOOD SENSORY D Thành phần • C, H, O • N, S, P FOOD SCIENCE Nguyên tố FOOD CHEMISTRY 2/13/2009 ĐÁNH GIÁ ... Camelot Press Germany Larmond E., 1997 Laboratory methods for sensory evaluating of food Food research Instititue Chawa-Canada Tiếng Việt Hà Duyên Tư, 1996 Kỹ thuật đánh giá cảm quan thực phẩm Giáo...