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Application Of HACCP Methodology To Establish Safety Qualification Control System On School Milk

Posted on:2006-02-14Degree:MasterType:Thesis
Country:ChinaCandidate:S W WangFull Text:PDF
GTID:2156360152980649Subject:Food Engineering
Abstract/Summary:PDF Full Text Request
The safety quality of the school-milk is currently the focus of the whole society. Compulsive implementation of the HACCP quality control system and all-round improvement of quality safety have become the indispensable way to smoothly generalize the National School Milk Programme. At present, our country has not yet built up a relatively complete set of safety quality control system, which is suited to the practical situation of China on the basis of HACCP principles and methodology. Based on the HACCP principles and methodology, through the thorough observation and experimental study to the entire process of a certain pilot UHT school milk manufacturer from the control of raw milk produce in the cattle farm, the manufacturing process till the end consumers, the investigation outcome has proved that through the quality control of raw milk, based on the hydrological features of Henan province Zhengzhou Yellow River bottomland area, by establishing and implementing of "the compendium of breed aquatics district construction" and "standard operation procedure for the cattle farm management", the quality of school milk can be entirely improved, thereinto the total bacteria amount<=200000cfu/ml, the total spore amount<=100cfu/ml, thermospore amount<=10cfu/ml, antibiotics 100 percent up to snuff. The excellent raw milk for the safety quality of school milk production is guaranteed. The study to packing material and bottling condition has shown: EVOH is the plastic packaging material tally with food hygiene requirements, which is out of the nutritious substances for microorganism growing and propagating. Packaging material which is dried and lower in aw (water activity),.is safe and hygiene, by strictly conforming SSOP control in the working process and avoiding cross-contamination from outside, completely suitable for school milk production. In the meantime, scientific management criterion has been formulated and strictly implemented in allusion to the bottling condition according to the practical production situation. Bottling workshop has reached 10000 grade pureness level and the reject rate has been effectively lowed. On the basis of the effective control to raw milk, packing material and bottling condition, four critical control points in systematic production have been further confirmed, i.e. filtration and analysis of antibiotics in raw milk, pasteurization of raw milk, UHT sterilization of mix, primarily establishing HACCP safety quality control system. The research result has shown: after the establishment and implementation of the system, the indisposed information ratio has been reduced from 14.76 times per 100 ton to 4.25 times. The reducing extent is at over 71.2%. The packaging reject ratio is close to 1: 5000 (one complaint report in every ten customers who bought the reject packaging supposed)...
Keywords/Search Tags:HACCP, Safety, School Milk, Quality Control System
PDF Full Text Request
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