Removal of Fats, Oils and Grease in the Pretreatment of Diary Wastewaters

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    II Recent ID Fpubli cationsRecommendations for Presentation of Mastitis-Related DataPart 1: Somatic Cell CountPart 2: Records of Clinical Mastitisby a sub-group of ID F Group A2- Bovine M astit isHistorically, somatic cell count data have been presented in avariety of ways, making comparisons of data from differentsources difficult, if not impossible. Milk somatic cell countsare increasingly used to compare milk quality within regionsor states of a country as well as among countries. The finalnumber used to indicate the status of a country/region/milkcooperative can vary greatly depending upon the method usedfor calculation. As the demand for such comparisons increa-ses, so does the need for a standardized method of calculation.A subgroup of A2 was organized under the leadership of Olav0sterls (Norway) with the charge to produce a documentrecommending standardized methods for presentation ofsomatic cell count data. A section on presentation of clinicalmastitis data is included as these data also suffer from a lackof consistent method of presentation, and comparisons amongstudies or reports are very difficult.

    The document is presented in the form of a condensedversion for quick reading and introduction to the subjectmatter, and as the full text with complete detail. The docu-ment will be a useful reference for those publishing datainvolving somatic cell counts and/or incidence of clinicalmastitis cases, and that the document will help bring clarity toan area in need of clarity.20 pp. ~ English onlyGuidleines for Evaluation of the Milking Processby J. Hamann (Germany) (in conjunction w it h the ID FM achine M il ki ng and M astit is Subgroup A2D of Group A2)The paper describes guidelines to evaluate the entire process ofmechanical milking. Application of the guidelines will result indetailed information on interactions between machine, milkerand dairy cows, and the related efficiency of milking, milkremoval and any risk of new infection of the mammary gland.The guidelines are based mainly on evaluation of the followingcriteria: (1) Operator action and behaviour; (2) Animal factorsand behaviour; (3) Machine characteristics, and (4) Generalconditions of housing and management.5 pp, ~ Engli sh and FrenchDirectives pour IEvaluation des Processus de Traitepar J. Hamann (Al lemagne) (en collabor at ion avec e Group e FILA2D du Groupe A2 sur es M achines a rair e et a M ammit e)Ce document decrit les directives destinies a evaluer le pro&dede traite mecanique dans sa totalite. Lapplication de cesdirectives devrait debaucher surdes informations detailleesrelatives aux interactions entre dune part la machine, le laitieret les vaches laitieres, et dautre part Iefticacite relative de latraite, lenlevement du lait et tout risque de nouvelle infectionde la grande mammaire. Ces directives se basent essentielle-ment sur levaluation des criteres suivants: (1) action etcomportement de loperateur; (2) les animaux et leur compor-tement; (3) parambres de la trayeuse, et (4) conditions gener-ales de logement et de gestion.5 pp. - Anglais et raqcaisBul leti n N o. 32111997, 36 pp au tot al, 1200 BEFDietary Calcium in Healthby ID F Group of Expert s F22- Di etar y Calcium and HealthThis is an update of a monograph on dietary calcium andhealth published by IDF in 1991. Seven major topics arereviewed: calcium and osteoporosis, calcium-iron inter-relationships, calcium and colon cancer prevention, bioavail-ability of calcium calcium and blood pressure, calcium andkidney stone formation, and sodium and calcium metabolism.The topics are reviewed critically and present a balanced andobjective view of the calcium and health issue.34 pp. ~ English onlyBul leti n No. 32211997, 36 pp. in ot al, 1200 BEF

    World Dairy Situation 1997Result s of annual surv ey present ed by t he President of Comm is-sion C at the Annual Session s (Reyk jav ik ), August 1997This bulletin is the first revamped edition of the World DairySituation report presented to Commission C at IDFs AnnualSessions. In addition to the collation of figures and commentsfrom IDF National Committees and other sources where IDFhas no National Committees, contributions from the ZMP andMilk Marque have significantly added to the publication. Milkproduction, industrial milk processing, trade in dairy products,development of demand and consumption, and prices for 1996are presented, along with forecasts for 1997/98.

    The dairy situation in 36 individual countries is summar-ized.42 pp. - English onlyBul leti n No. 32311997, 1300 BEFIDF Guidelines for Hygienic Design and Maintenance of DairyBuildings andServi cesby ID F Group of Expert s B48- Hy gienic Design and M ain-tenance of Dair y Buil dings and Serv icesThis comprehensive manual provides guidelines for the hygie-nic design and maintenance of dairy buildings and servicesduring construction, renovation or extensions. These guide-lines focus on practical aspects to be applied by the dairyindustry and any other persons directly or indirectly involvedin hygienic management of dairy processing.Bul let in No . 32411997, 72 pp. 1600 BEFMajor Changes in the International Dairy TradePapers present ed at t he Conference of Commi ssion C held i nReykjavik, Iceland, 27 August 1997This bulletin includes papers presented at the ConferenceMajor Changes in the International Dairy Trade organizedby Commission C at IDFs Annual Sessions in Reykjavik,Iceland, in August 1997

    The new international trade regime for dairy products ingeneral is discussed, but also with respect to the WTO andNAFTA in particular. The regional developments are descri-bed for North America, Western and Eastern Europe, LatinAmerica, the Middle East and North Africa, and South EastAsia and the Far East. The specific market trends are high-lighted by the developments in the global consumption ofdairy products, in the cheese market and the expanding ingre-dients market in the USA. Finally, the strength of the dairysector is related to the strength of the European retail chains.Bul l et i n No . 32511997, 72 pp., 1600 BEFThe World Market for Cheese (Fourth Edition)by H. Herlev Sorensen (Denmark ) (ID F Commi ssion C, GroupC2)The report presented here is based mainly on a questionnaire,prepared by the Danish Dairy Board, and sent to the IDFmember countries. Replies were received from 15 countries,representing approximately 75% of total world cheeseproduction. The information given in the questionnaire hasbeen supplemented by the usual statistical sources, such asFAO, OECD, ZMP, etc. Data for the period 1987-1996 areincluded and provide an overview of the latest trends andstructural changes in total world cheese production, trade, andconsumption.

    This report is an update of the results presented in Bulletin307/1995.Bul l et i n No. 32611997, 46 pp., 1300 BEFRemoval of Fats, Oils and Grease in the Pretreatment of DairyWastewatersby ID F Group of Expert s B18-Control of Wat er & WasteWat er in the Dairy IndustryLiquid wastes, resulting from the utilization of milk in dairymanufacturing processes, require disposal. These wastescontain a certain percentage of the raw material product. The

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    Recent IDF publications I11composition of whole milk contributes not only BOD load fortreatment. but also has certain other constituents whichbecome part of the waste. These principally are: Fats, Oils andGrease (FOG). It is necessary for these to be reduced inconcentration if not eliminated altogether, thus enabling thebiological treatment to proceed without any inhibitors to thebiological reduction of the organic matter in the wastewater. Anumber of possible pretreatment systems are examined to seehow FOG can be eliminated prior to the main treatmentprocess itself which is generally of a biological nature.

    The answers to an IDF questionnaire on the pretreatmentof dairy wastewaters are presented and general conclusions aredrawn.

    The final section presents a case study on physico-chemicalwastewater treatment from a liquid milk plant in Rotterdam,Holland.13 pp. ~~English only

    Possible Implications of Milk Pasteurization on the Manu-facture and Sensory Quality of Ripened Cheese: A Review*by R. Gruppin & E. Beuvier (France)*Comprehensive summar_v qfa paper submitted to the Internu-tionul Dairy JournalThe review takes a look at the most significant changes in milkinduced by pasteurization in relation to cheesemaking

    elimination or stress of microorganismsactivation/inactivation of indigenous milk pro-enzymesand enzymesdenaturation of serum proteinsmodification of milk renettabilityconsequences on growth and activity of starter and non-starter microorganisms:

    It is clear that pasteurization of milk modifies the biochem-istry and microbiology of ripening, and ultimately the flavourand texture of cheese. The indigenous milk flora, with itsdiversity of species and strains, appears to be responsible forthe specific organoleptic quality of raw milk cheeses.4 pp. English onl,vBulletin No. 3271997. 20 pp., 1000 BEF

    BOOKMonograph on Residues and Contaminants in Milk and MilkProductsby IDF Group of Experts A4-- Residues and Contuminunts inMilk und Milk ProductsThe current monograph is the 4th issue of a series of IDFpublications on chemical residues in milk and milk products,which commenced as early as 1968. The need for more foodfor human consumption for a growing population, and higherstandards for both quantity and quality of the commoditiesincluding food of animal origin have led to an increased butprincipally safe ~~ use of chemicals in agriculture.

    An influence of such production aids on milk and milkproducts cannot be denied, but must, under all circumstances,be kept within the frame of unaffected food safety. Theconsumers increased awareness of a growing chemicaliza-tion of his/her daily food from media information presents achallenge to the dairy industry to ensure the unimpairedconfidence of the consumer regarding the unconditionalwholesomeness and safety of milk and milk products.

    The recent implementaion of both the World Trade Orga-nization and the incorporated Agreement of Sanitary andPhytosanitary Measures which came into force on 1 January1995 concerns the application of food safety and animal andplant health regulations. The new scientific approaches toalmost unnegotiable food safety contain the Hazard Analysisand Critical Point (HACCP) system, which is expected torelieve, or at least complete, the end-product testing executedso far but with only a few redundancies to the food-producingecosystem.

    These and some other related criteria form the backgroundfor this 1997 update. This publication is not a scientific paper.Its scientifically-based content is addressed to the dairy indus-try and the interested public and all those who take part in theproduction and preservation of safe milk and milk products.Food additives and feed additives are not covered in thismonograph.132 pp. i A5,formut (March 1997) English on !XI. No. 9701, 2100 BEF. 1997, ISBN 92 9098 02.5 8

    INTERNATIONAL DAIRY FEDERATIONINTERNET CONNECTIONVisit IDF at http://www.fil-idf.orgIf you have no Web browser contact IDF via e-mail at [email protected] IDF Home Page now has in place its promised section on Codex Alimentarius. The new text deals withIDFs input into Codex, principally to the Codex Committee on Milk and Milk Products. The text takes intoaccount the decision of the June 1997 Session of the Codex Alimentarius Commission.The IDF Home Page deals with

    About IDFFuture IDF eventsMembers of IDFIDF Publications (with the Acrobat program the entire IDF catalogue of publications can be downloaded and

    reprintedIDFs Current Programme of WorkCodex AlimentariusUseful contactsPage users questionsWhats new this monthRegistration forms for events and order forms for publications are available