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FEATURED IN THIS ISSUE: - NZIFST - The New Zealand Institute of ...

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Salami microbiologySalami is a fermented meat product and I went andtalked to John Brooks, Pr<strong>of</strong>essor <strong>of</strong> Food Microbiologyat AUT University, to learn about that. He said thattraditionally, salami was allowed to ferment naturallybut nowadays starter cultures are used. <strong>The</strong> particularstrains <strong>of</strong> the bacteria used are proprietary secretsbut they are strains <strong>of</strong> Lactobacillus and Micrococcusvariants. <strong>The</strong> lactobacilli produce lactic acid and theMicrococci reduce nitrate to nitirite. Both <strong>of</strong> these actionshelp to keep the salami. Fermentation conditionsare variable; anywhere from 15°C to 40°C and for 20 to60 hours. Some processors use heat treatment after thefermentation stage.<strong>The</strong> combination <strong>of</strong> slow drying and fermentationreduces the pH <strong>of</strong> the salami to below 5.2 and promotescoagulation <strong>of</strong> the meat protein. All this contributes tothe desired flavour, texture and food safety <strong>The</strong> highfat content in some salamis helps to reduce the wateractivity also.By the way, John writes a very readable food microblog, which is getting 250 hits/day. To check it out, go tohttp://foodsafetywithjaybee.blogspot.comEtymologySalami is the plural <strong>of</strong> the Italian word ‘salame’. <strong>The</strong>sal part, well, that’s fairly obvious and the ‘-ame’ part isan indicator <strong>of</strong> collective nouns. Salame is therefore allkinds <strong>of</strong> salted (meats). In modern English ‘salami’ is acured, fermented and air dried meat product.Traveller’s Tale<strong>The</strong> Driving ForceIn PneumaticsSERIESKQB2Metal One-touch FittingsNEWS/S Collet & FKM SealsElectroless Nickel Plated Brass• Compact and light(Dimensions: Approx. 30% down - Comparison with KQBL06-01S)• More tube sizes added (ø3.2 (ø1.8”) and ø16 have beenadded)• More configurations varied (17 models 9 models)• Metric size x G thread added• Applicable tube size (4mm - 16mm)• Connection thread: M5 - G1/8, G1/4, G3/8, G1/2www.smc.co.nzSMC Pneumatics (N.Z.) LtdAuckland (Head Office)5 Pacific RiseMt Wellington Auckland 1060T (09) 573 7007F (09) 573 7001E sales@smc.co.nzDecember 2011/January 2012 19

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