CACMISC7SOFANALYSISANDSAMPLING.pdf

CAC/MISC 7 Page 1 de 3 METHODS OF ANALYSIS AND SAMPLING FOR FRUITS JUICES AND RELATED PRODUCTS CAC/MISC 7 The methods of analysis referred to hereunder apply, as appropriate, to the Codex Standards for Fruit Juices, Concentrated Fruit Juices and Fruit Nectars preserved exclusively by Physical Means set forth in this publication. 1. Taking of Sample and Expression of Results as m/m (Type I Method) According to the IFJU Method No. 1, 1968, Determination of relative density and the IFJU General Sheet, 1971, Conversion of analytical results from m/v (g/l, mg/l) to m/m (g/kg, mg/kg) and the reverse. 2. Test of Fermentability (Type I Method) According to the IFJU Method No. 18, 1974, Fermentation Test. Results are expressed as “positive“ or “negative“. 3. Determination of Apparent Viscosity (Type I Method) According to the AOAC Method: Official Methods of Analysis of the AOAC, 14th Ed., 1984, Apparent Viscosity (consistency) (6) - Official Final Action, 22.009, 22.010, 22.011. Results are expressed in seconds. 4. Determination of L-Ascorbic Acid (Type II Method) According to the method of AOAC: Official Methods of Analysis of the AOAC, 13th Ed., 1980; Vitamin C (Ascorbic acid) - Official Final Action, Microfluorimetric method (13) 43.061 - 43.064. Results are expressed as mg L-Ascorbic acid/kg. 5. Determination of Carbon Dioxide (Type II Method - temporarily endorsed) According to the IFJU Method No. 42, 1966, Determination of carbon dioxide. Results are expressed as g carbon dioxide/kg. 6. Determination of Essential Oils (Type I Method) According to the IFJU Method No. 45A (1972). Results are expressed as ml essential oils/kg. 7. Determination of Ethanol (Type II Method - to be endorsed) According to the IFJU Method No. 53, 1983, Determination of alcohol (Ethyl alcohol) - enzymatic method. Results are expressed as g ethanol/kg. 8. Determination of Honey (To be elaborated). CAC/MISC 7 Page 2 de 3 9. Determination of Minimum Content of Fruit Ingredient (To be elaborated). 10. Determination of Added Salt According to the Codex General Method for Chloride, JAOAC, 58, 399-400, 1975 (Type II) or according to the IFJU Method No. 37, 1968, Determination of chloride (potentiometric micro-method). The determination of sodium is not necessary (Type III Method). Results are expressed as % m/m NaCl. 11. Determination of Soluble Solids (Type I Method) According to the IFJU Method No. 8B, 1968, Estimation of soluble solids, indirect determination (see Official Methods of Analysis of the AOAC, 1975, 22.019, 31.009 and 52.010). Results are expressed as % m/m sucrose (“ Brix“) with correction for temperature to the equivalent at 20 C. 12. Determination of Sugars (Type I Method) According to the IFJU Method No. 4, 1968, Determination of Sugar (Luft-Schoorl Method). Results are expressed as % m/m. 13. Determination of Total Titrable Acids (Type I Method) According to the IFJU Method No. 3, 1968, Determination of titrable acid (total acid). Results are expressed as g anhydrous citric acid/kg. 14. Determination of Volatile Acids According to the IFJU Method No. 5, 1968, Determination of volatile acids. Results are expressed as g acetic acid/kg. 15. Determination of Water Capacity and Fill of Containers According to the method published in the Almanac of the Canning, Freezing, Preserving Industries, 55th Ed., 1970, pp. 131-132, E.E. Judge and Sons, Westminster MD (USA).1 16. Determination of Arsenic According to one of the following methods: - AOAC 13th Ed., 1980, Arsenic, Official Final Action: 25.012, 25.013 (Type II endorsed). - AOAC 13th Ed., 1980, Arsenic, Official Final Action: 25.010, 25.011 (Type III endorsed). - AOAC 13th Ed., 1980, Arsenic, Official Final Action: 25.A01-25.A05 (Type III). 1 Reproduced in ALINORM 71/23, Appendix V. CAC/MISC 7 Page 3 de 3 17. Determination of Copper (Type II Method) According to the IFJU Method No. 13, 1964, Determination of copper (Photometric Method). Results are expressed as mg copper/kg. 18. Determination of Iron (Type II Method) According to the IFJU Method No. 15, 1964, Determination of iron (Photometric Method). The determination shall be made after dry ashing as described in Section 5 - Remark (b). Results are expressed as mg iron/kg. 19. Determination of Lead (To be endorsed) According to the AOAC Method, Official Methods of Analysis, 13th Ed., 1980, Lead: 25.016-25.067 (Type II) or ISO Method 6633 (Type III). 20. Determination of Mineral Impurities Insoluble in Hydrochloric Acid (Type I Method) According to the AOAC method: Official Methods of Analysis of the AOAC, 13 Ed., 1980, Ash insoluble in acid. Official Final Action: 30.008. The exact concentration of HCl to be used is not critical. Results are expressed as mg mineral impurities insoluble in hydrochloric acid/kg. 21. Determination of Sulphur Dioxide (Type II Method) According to the IFJU Method No. 7, 1968, Determination of total sulphur dioxide. Results are expressed as mg SO2/kg. 22. Determination of Tin (Type II Method) AOAC Method, 13th Ed., 1980, Tin: Atomic Absorption Method (28) - Interim Official First Action, 25.136- 25.183. Results are expressed as