Towards an approach to assess critical quality points (CQPs) in food production systems : a case study on French fries production

摘要: This thesis investigated how to develop an approach for the systematic and science based assessment of those points in food production systems that have a critical effect on quality; such could be designated as quality (CQPs). One fundamental objectives control is reduce variation final attributes, which makes it essential understand causes these attributes. A so-called techno-managerial was applied research framework study both technological managerial aspects. French fries (FF) chain chosen case study, because many where conditions can lead substantial quality. analysed, comprehensive literature analysis, review major It appeared not possible firmly assign points, lacking establish Based available quantitative data literature, selection suitable cultivar, time-temperature settings during bulk storage, blanching frying were indicated potential sources considered The conclusion further insight required contribution process product factors actual profiles attributes fries. Consequently, conducted getquantitative texture colour function various fixed (t-T) settings. increased temperature time (from 170 190 oC, from 4 6 min) resulted only higher mean ln (peak force) values measure index, but also larger peak force (29 %) index (41 %). These results more obvious thin compared thick FF. Therefore, suggested t-T fries.However, minor variation, optimum setting important design activity while making specifications large value parameter. part implementation instructions, sharply reduced (frying time) (portion size). reduction ultimately significant (Cal Var) (Peak Finally themain findings discussed put them general perspective.First, well-known HACCP establishing CQPs are multidimensional multifactorial hazards. Nevertheless, taken starting point insights, assess proposed. proposed has provided basic procedure consisting six global steps system, our Each detail with respect applicability chains. picture emerged clear some details needed specific chains, Moreover, TM (Techno-Managerial) this proved well, clearly showed interconnection between human Whether or other chains remains established, certainly give attention to. base studies different foods by investigating products, evaluate improve structured guidelines industry assure products.