ExFHPB-5 Determination of Extraneous Material in Whole Figs
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BC86602B8AB346EDA48458AE661758A6 |
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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-5,February 2006,HEALTH PRODUCTS AND FOOD BRANCH,OTTAWA,DETERMINATION OF EXTRANEOUS MATERIAL IN WHOLE FIGS,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 figs that will be subject to no further cleaning,or sorting prior to use or sale, for insect infestation, mites, mould, hairs, fibres, sand and soil and other extraneous,material to determine compliance with Sections 4, 5 and 7 of the Food and Drugs Act. This method replaces,ExFHPB-5, dated April 1996.,2. DEFINITION 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. SAMPLING,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 figs each (1000 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),5) Compound microscope (100x),ExFHPB-5,- 2 - February 2006,5. 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 figs in a random fashion. Each 50 figs constitutes an analytical,unit.,5.2 Examination,5.2.1 Cut each fig in half lengthwise from stem to blossom end with a sharp knife.,5.2.2 Examine the outer surface including folds and crevices and the inner surface using an illuminator and a,magnifying lens (3-5x) for insects, mites and their damage, mould, dirt and worthlessness as outlined in,4.4. 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).,5.2.3 Repeat examination of the seven remaining analytical units.,5.3 Classification,5.3.1 Classify each fig into one of the following categories. If a fig shows more than one defect, classify only,as a multiple defective.,(a) Insect Damaged - figs containing insects or their parts, tunnels, excreta, eggs, or webbing.,Disregard the presence of the fig wasp, Blastophaga sp. unless found in large numbers. Report,the kind and approximate number of insects and parts if present.,(b) Mite Infested - figs containing sufficient numbers of mites to be seen by examination of the sample,as a whole, i.e. > 20 mites per fig. Mite contamination is often associated with a dusty, sugary,or encrusted appearance containing mite bodies on the fig.,(c) Mouldy or Sour - figs with mouldy or rotten areas $ 5 mm in diameter either singly or in,aggregate. Sour figs have a distinct odour characteristic of fermentation.,(d) Dirty - figs 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 - figs so immature, woody or fibrous as to be practically valueless as food.,(f) Multiple Defectives - figs showing more than one of the above defects.,5.3.2 Acceptable Figs: figs that do not show any of the above defects.,5.4 Calculating and Recording Results: ExFHPB-5,5.4.1 Record the percent by number of each category of defectives, separately for each analytical unit, as,described in 5.3, to the nearest 1%.,total number of insect,category (a) = % only insect = damaged figs x 100,damaged defectives total number of figs,examined = 50,ExFHPB-5,- 3 - February 2006,= total number of insect x 2,damaged figs,category (b) = % only mite infested defectives,category (c) = % only mouldy or sour defectives,category (d) = % only……
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