ExFHPB-4 Determination of Extraneous Material in Whole Dates
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6145D5A5563A4AE400F8EC4CD075ABC1 |
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文件大小(MB)： |
0.02 |
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页数： |
3 |
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日期： |
2012-3-3 |
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Published on the Food Directorate’s (Health Canada's) website at,http://www.hc-sc.gc.ca/fn-an/res-rech/analy-meth/microbio/index_e.html,Government of Canada Gouvernement du Canada,HPB Method ExFHPB-4,February 2006,HEALTH PRODUCTS AND FOOD BRANCH,OTTAWA,DETERMINATION OF EXTRANEOUS MATERIAL IN WHOLE DATES,Evaluation Division, Bureau of Microbial Hazards,Food Directorate, Postal Locator: 2204A1,Health Canada, Ottawa, Ontario K1A 0L2,1. APPLICATION,This method is applicable to the sampling and examination of whole dates, that will be subject to no further cleaning,or sorting prior to use or sale, for insect infestation, mites, mould, hairs, fibres, sand, soil and other extraneous,material and in pitted dates for pits and pieces of pit, to determine compliance with Sections 4, 5 and 7 of the Food,and Drugs Act. This method replaces ExFHPB-4, dated April 1996.,2. DEFITINITION OF TERMS,A lot is defined as that amount (volume, weight, etc.) of the food which is produced, stored and/or shipped under,conditions as nearly uniform as possible, preferably designated by a common container code or marking, and, in,any event, consisting of not more than one variety, grade or type of product from a single identifiable source.,3. COLLECTION OF SAMPLES,3.1 Scrutinize the entire lot for live infestation. If live infestation is found, do not sample until after fumigation,or other effective treatment.,3.2 Obtain eight sample units selected at random from the lot of at least 50 dates each (650 g) using,appropriate sampling equipment and containers. Eight sample units constitute a sample.,3.3 Each sample unit must be kept separate and labelled 1, 2, 3, etc. Complete information respecting the lot,size, weight of individual containers, country of origin, exporter, importer and product and lot identification,should be recorded and should accompany the sample.,4. MATERIALS AND SPECIAL EQUIPMENT,1) Sharp knife,2) Illuminator,3) Magnifying lens (3-5x),4) Stereoscopic microscope (10-70x),ExFHPB-4,- 2 - February 2006,5) Compound microscope (100x),5. PROCEDURE,The examination shall be carried out in accordance with the following instructions.,5.1 Analytical Units,5.1.1 From each of eight sample units, take 50 dates in a random fashion. Each 50 dates constitutes an,analytical unit.,5.2 Examination for Defective Dates,5.2.1 Examine each date in an analytical unit as follows:,(a) For unpitted dates, cut date in half lengthwise with a sharp knife and remove pit.,(b) For pitted and originally unpitted dates, examine the outer surface and pit cavity of each date,using an illuminator and a magnifying lens (3-5x) for insects, mites and their damage, mould, dirt,and worthlessness as outlined in 5.4. Use a stereoscopic microscope (10-70x) only to confirm,questionable areas. Confirm mould filaments by transferring questionable particles to a glass,slide and observing with a compound microscope (100x).,5.2.2 Repeat examination of the seven remaining analytical units.,5.3 Examination for Pits and Pieces of Pit (for pitted dates only),5.3.1 Examine all 400 dates for pits and pieces of pit $ 2 mm (longest dimension).,5.4 Classification of Defective Dates,5.4.1 Classify each date into one of the following categories. If a date shows more than one defect, classify only,as a multiple defective.,(a) Insect Damaged - dates containing insects or their parts, insect tunnels, excreta, eggs, or,webbing. Report the kind and approximate number of insects and parts if present.,(b) Mite Infested - dates containing sufficient numbers of mites to be seen by examination of the,sample as a whole, i.e. > 20 mites per date. Mite contamination is often associated with a dusty,sugary or encrusted appearance containing mite bodies on the date.,(c) Mouldy or Sour - dates with mouldy or rotten areas $ 5 mm in diameter either singly or in,aggregate. Sour dates have a distinct odour characteristic of fermentation.,(d) Dirty - dates showing bird, rodent or other mammalian excrement or excreta $ 5 mm in length,either singly or in aggregate or other attached extraneous material such as sticks, stones, dirt,clumps, hairs, feathers, fibres, paper, straw, string or plastic, etc.,(e) Worthless - dates so immature, woody or fibrous as to be practically valueless as food.,(f) Multiple Defectives - dates showing more than one of the above defects.,5.4.2 Acceptable Dates: dates that do not show any of the above defects.,ExFHPB-4,- 3 - February 2006,5.5 Calculating and Recording Results for Defective Dates: ExFHPB-4,5.5.1 Record the percent by number of each category of defectives, separately for each analytical unit, as,described in 5.4, to the nearest 1%.……
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