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[Water activity and food stability]
1981
Lerici, C.R. | Piva, M. (Bologna Univ. (Italy). Istituto di Industrie Agrarie)
The measurement of A(, w) can supply useful information as to the chemical and biological stability of food products. In this review the following subjects are treated: (a) mathematical equation suggested in literature to describe water sorption isotherms of food systems. (b) A(, w) of systems with high and low water content. (c) A(, w) prevision in I.M.F. (d) Effect of A(, w) on degradative reactions. | La misura dell'attivita dell'acqua (A(, w)) e in grado di fornire utili indicazioni sulla stabilita chimica e biologica dei prodotti alimentari. Dopo aver definito i concetti di A(, w) e di isoterma di adsorbimento vengono sinteticamente trattati i seguenti aspetti: (a) Espressioni matematiche proposte in letteratura per descrivere le isoterme di adsorbimento dei sistemi alimentari. (b) A(, w) dei sistemi ad alto e basso contenuto in acqua. (c) Previsione dell'A(, w) dei sistemi ad umidita intermedia. (d) Influenza dell'A(, w) sulle principali reazioni degradative.
显示更多 [+] 显示较少 [-]Significance of water activity in food microbiology
1981
Bartl, V. (District Hygienic Station, Praha (Czechoslovakia). Hygienic Lab.)
Heat inactivation of Staphylococcus epidermidis at various water activities [Food spoilage, food poisoning].
1981
Verrips C.T. | Rhee R. van
Method 17: Extraction of water-soluble colours [food additives] from food using polyamide columns
1981
Crosby, N.T.
Method 15: Identification of water-soluble colours [food additives] in food using paper chromatography
1981
Crosby, N.T.
Ion-pair high performance liquid chromatography of synthetic water-soluble acid dyes [Food dyes, food additives, food colorants, food technology, toxicity, chemical analysis].
1981
Puttemans M.L. | Dryon L. | Massart D.L.
Method 16: Identification of water-soluble colours [food additives] in food using thin-layer chromatography.
1981
Crosby N.T.
Water activity and its estimation in food systems: theoretical aspects
1981
Berg, C. van den | Bruin, S.
Investigation on the COD of waste water in food manufacturing
1981
Enterotoxigenic bacteria in food and water from an Ethiopian community.
1981
Jiwa S.F.H. | Krovacek K. | Wadstrom T.
