PHYSICO-CHEMICAL CHARACTERIZATION OF JAMS, ARTINASAL AND INDUSTRIAL PRODUCED FROM THE PRICKLY PEAR FRUIT OF OPUNTIA FICUS INDICA.L
Objective: This research work is aimed at production and evaluation of the physico-chemical, and sensory qualities of jam produced from the prickly pear fruit from two varieties: Timgad region (Batna, semi-dry area), Elkseur (Bejaia, temperate zone), and an industrial: Roumais jam (Elkseur).
Methods: The soluble solids content is determined by measuring the Brix at 20°C by using a Digital refractometer. Ash was determined by combustion of the sample in a muffle furnace at 550°C for 5 h. The total soluble sugar content was examined using phenol-sulphuric acid colorimetric method using a spectrophotometer (UV-VIS, Shimadzu). The Total nitrogen content was determined by the micro-Kjeldahl method and total Protein content was calculated using a 6.25 factor. Pectin content was determined by method of Golou and Bev. Reducing sugars were determined by the Fehling's test. The crude fiber content was determined by using the traditional Van Soest method. Lipid content was determined using a Soxhlet apparatus HT 1034 according to the procedure described by Huang. Sensory evaluation was carried out by 10 panelists using a 9-point Hedonic scale.
Results: The physical and chemical analysis results give a very moderate total sugars (53.7; 46.4; and 23.2 %), pectine (17.1; 16.0; and 12.0 %), acidity (1.84; 1.45; and 2.9 g / 100 g), °Brix (60; 62.3; and 27%), humidity (30.4; 32.4; and 71.8%), and fiber (13.3; 22.6; and 22.9 %). The sensory results give for color (8.10; 6.62; and 7.22), for taste (7.89; 5.81; and 7.44), for odor (8.20; 6.64; and 7.98), and for texture (7.50; 8.30; and 5.23).
Conclusion: In conclusion, it would be good to extend the field of study to a mixture of prickly pear to others fruit to develop other quality products (jam, jelly, syrup, candy) in the innovation framework.
2. Sáenz C, Sepúlveda E, Matsuhiro B. Opuntia spp mucilage’s: a functional component with industrial perspectives, Journal of Arid Environments, 2004; 57: 275– 90,.
3. Osvald A, Stirn L Z. A vehicle routing algorithm for the distribution of fresh vegetables and similar perishable food. Journal of Food Engineering. 2008; 85: 285-95.
4. Germain K, Koubala B B, Lape I M, Effect of ripening on the composition and the suitability for jam processing of different varieties of mango (Mangifera indica). African Journal of Biotechnology. 2003; 2: 301-06.
5. COUNCIL DIRECTIVE 2001/113/EC of 20 December 2001 relating to fruit jams, jellies and marmalades and sweetened chestnut purée intended for human consumption. Official Journal of the European Communities, 12.1.2002, L 10/67.
6. Igual M, García-Martínez E, Camacho M M , Martínez-Navarrete N. Jam processing and storage effects on ?-carotene and flavonoids content in grapefruit. Journal of Functional Foods. 2013; 5: 736-44.
7. AOAC, 2000. Official Methods Of Analysis, 15th ED. Association Of Official Analytical Chemists, USA, p 1058-059.
8. AFNOR, 1984 (Recueil Des Normes Françaises Des Produits Dérivés Des Fruits Et Légumes, Jus De Fruits.), ED. AFNOR, p325.
9. AOAC International. (1995). Official Methods of Analysis (16th edition). Association of Analytical Chemists. Arlington, V.A
10. Dubois M, Gilles K, Hamilton J K, Reber P A, Smith F. Colorimetric method for determination of sugars and related substances. Analytical Chemistry. 1956; 28: 350–56.
11. Golou and Bev V N. Institut Technologique Des Industries Alimentaires, EX URSS, 1984; 46-50.
12. Besbes S, Drira L, Blecker C, Deroanne C, Attia H. Adding value to hard date (Phoenix dactylifera L.): Compositional, functional and sensory characteristics of date. Jam Food Chemistry 2009; 112: 406-11.
13. Van Soest P J. Nonnutritive residues: a system of analysis for the replacement of crude fiber. Journal - Association of Official Analytical Chemists 1966; 49: 546–51
14. Heer B G D, Boever J L D, Vanacker J M. The filter bag versus the conventional filtration technique for the determination of crude fibre and Van Soest cell wall constituents. Journal of Animal and Feed Sciences. 2000; 9:513–26.
15. Huang W K, Food testing and analysis. China: Light Industry Press. 1989.
16. Le Magnen J. Evaluation sensorielle. Manuel méthodologique. Lavoiser, Paris, France, 1998 ; p45.
17. Feugang J M, Konarski P, Zou D, Stintzing F C, Zou C. Nutritional and medicinal use of Cactus pear (Opuntia spp) cladodes and fruits. Frontiers in Bioscience, 2006; 11: 2574-89.
18. Codex STAN 19-1981. (Normes Pour Les Confiture Et Gelées), p1.
19. Apfelbaum M, Perlmuter L, Nillus R, Forrac C, Berged M. « Dictionnaire pratique du diététique et de nutrition ». Ed Masson, Paris, 1981 : p180.
20. USDA, 2001. Laboratoire sur les éléments nutritifs, ARS, National des éléments nutritifs de l'Alimentation et l'analyse du programme Vague 5L Beltsville MD.
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