Effect of Thermal Processing on Lycopene, Beta-Carotene and Vitamin C Content of Tomato [Var.UC82B]
Journal of Food and Nutrition Sciences
Volume 2, Issue 3, May 2014, Pages: 87-92
Received: May 7, 2014;
Accepted: May 29, 2014;
Published: Jun. 10, 2014
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Ishiwu Charles N., Department of Food Science and Technology, Nnamdi Azikiwe University, Awka- Nigeria
Iwouno, Jude O., Department of Food Science and Technology, Federal University of Technology, Owerri-Nigeria
Obiegbuna James E., Department of Food Science and Technology, Nnamdi Azikiwe University, Awka- Nigeria
Ezike Tochukwu C., Department of Biochemistry, Caritas University, Amorji-Nike, Enugu-Nigeria
The available lycopene, beta-carotene and vitamin C content of raw, boiled and fried tomato (Var.UC82B) were evaluated. Ripe tomato was purchased from Ogbete main market Enugu- Nigeria and the variety was identified at the Crop Science department, University of Nigeria Nsukka. It was sorted, washed and pulped using a blender. The pulp was divided into seven portions and labeled (A-G) Portion A was raw sample that served as a control since it was neither boiled nor fried. Portions B, C, and D were boiled for 2, 15 and 30minutes respectively. Portions E, F and G were fried in refined bleached and deodourized groundnut oil for 2, 15 and 30 minutes respectively. The seven samples were separately packaged in vial glass tubes and analyzed within three days from the time they were produced. Result shows that the three response variables evaluated were significantly [P < 0.05] affected by either boiling or frying. The lycopene content significantly increased [p < 0.05] as the period of boiling or frying increased between 2 and 30minutes. Boiling the pulp or frying it for 30 minutes increased the lycopene content from 24.2 to 32.9 % respectively. However, both the beta-carotene and the Vitamin C content significantly [p < 0.05] decreased as boiling or frying period increased between 2 and 30 minutes. The beta-carotene content decreased by 61.4 %, while the Vitamin C content decreased by 49.4 % when the tomato pulp was boiled for 30 minutes. When the tomato pulp was fried for 30 minutes, the beta-carotene decreased by 63.6 %, while the vitamin C decreased by 50.0 % [p< 0.05]. It is therefore, advisable to boil or fry tomato before consumption for maximum absorption of its available lycopene. However, excessive heat treatment would have adverse effect on the beta carotene and vitamin C content of the tomato.
Ishiwu Charles N.,
Iwouno, Jude O.,
Obiegbuna James E.,
Ezike Tochukwu C.,
Effect of Thermal Processing on Lycopene, Beta-Carotene and Vitamin C Content of Tomato [Var.UC82B], Journal of Food and Nutrition Sciences.
Vol. 2, No. 3,
2014, pp. 87-92.
Pohar KS, Gong MC, Bahnson R, Miller EC and Clinton SK Tomatoes, Lycopene and Prostate Cancer. World J Urol. 2003; 21: 9 - 14.
Tapier H, Townsend DM and Tew KD The Role of Carote-noids in the Prevention of Human Pathologies and Biomed Pharmacother 2004; 58: 100 -110.
Hadley CW, Clinton SK and Schwartz SJ How the Consumption of Processed Tomato Products Enhances Plasma Lycopene Concentrations in Association with a Reduced Lipoprotein Sensitivity to Oxidative Damage. J Nutr. 2003; 133: 727-32.
Giovannucci E, Rimm EB, Liu Y, Stampfer MJ and Willett WC A Prospective Study of Tomato Products, Lycopene, and Prostate Cancer Risk. J. National Cancer Inst. 1995; 94: 391- 8.
Narisaw AT, Fakaura Y, Hasebe M, Ito M, Aizawa R, Murakoshi M, Uemura S, Khachik and Nishino H Inhibitory Effects of Natural Ca-rotenoids: Alpha-carotene, Beta-carotene, Lycopene and Lutein on Colonic Aberrant Crypt Foci Formation in Rats. Cancer Lett 1996; 107: 137 - 142.
Martinez Ferrer, Verghese M, Walker LT, Shackeford L, Chawan CB and Jhala N Lycopene Reduces Azoxymethane-induced Colon Tumors in Fisher 344 Rats. Nutr Res 2006; 26: 84 - 91
Gupta NP and Kumar R Lycopene Therapy in Idiopathic Male Infertility a Preliminary Report. Int Uro Nephrol 2002; 34: 369-372.
Agarwal S and Rao AV Tomato Lycopene and its Role in Human Health and Chronic Diseases. J. Am Coll Nutr 2000; 163 :739 - 744.
Tanumihardjo S A Furr HC Amendee Manseme O and J A Olson Retinal Ester (vitamin A Ester) and Carotenoid Composition in Human Liver. Int J. Vitamin Nutr.1991; 121: 1613 -1621.
Shi J, Mauguer ML, Liptay A and Niekamp F Lycopene Degradation and Isomerization in Tomato Dehydration. Food Res 1999; 32: 15-21.
Goula AM, Adamopoulos KG, Chatzitakis P and Nikas VA Predicttion of Lycopene Degradation During a Drying Process of Tomato Pulp. Journal of Food Eng 2006; 74: 37 - 46.
Rao AV and Agarwal S Role of Antioxidant Lycopene in Cancer and Heart Disease. J. Am Coll Nutr.2000; 19 : 563 - 569.
Donaldson MS Nutrition and cancer: A review of the evidence for anti-cancer diet. Nutr J 2004; 3 -10.
Van het, Hof KH, deBoer BC, Tijburg, LB Lucius, BR, Zip I West CE, Hautvast JG, Weststrate JA Carotenoid Bioavailability in Humans from Tomatoes Processed in Different Ways determined from the carotenoid response in the triglyce-ride-rich lipoprotein fraction of plasma after a single consumption and in plasma after four days of consumption. J. Nutr. 2000; 130: 1189 - 96.
Dewanto VW, Adom KK and Liu RH Thermal Processing Enhances the Nutritional Value of Tomatoes by Increasing Total Antioxidant Activity. J. Agric. Food Chem. 2002; 50: 3010 - 3014.
Takeoka, GR, Dao L, Flessa S, Gillespie DM, Jewell WT, Huebner B, Bertow D and Ebeler SE Processing Effects on Lycopene content and Antioxidant Activity of Tomatoes. J. Agric. Food Chem. 2001; 49: 3713 - 3717.
Seybold C, Frohlich K, Bitsch R, Otto K and Bohm V Changes in Contents of Carotenoids and Vitamin E During Tomato Processing. J.Agric. Food Chem. 2004; 52: 5 -10.
Sahlin E, Savage GP and Lister CE Investigation of the Antioxidant Properties of Tomatoes after Processing. J Food Compo Anal 2004; 17:35 - 47.
Ziegler RG Vegetables, Fruits and Carotenoids and the Risk of Cancer. Am J. Clin Nutr. 1991; 53 : 251 - 259
Bendich, A “Antioxidant Micronutrients and Immune Re-sponse”. In Bendich, A. and Chandra, R.K. [eds.]. Micronutrients and immune functions. N.Y. Academy of Sciences, N.Y. 1990; 63 - 76.
NRC Recommended Dietary Allowances, Na-tional Research Council [NRC] 10th edn. National Academic Press Washington, DC.1989; p.24
Gorton HC and Javis K The Effectiveness of Vitamin C in Preventing and Relieving the Symptoms of Virus-induced Respiratory Infections, J. Man, Phys. Ther. 1999; 22 (8): 530 - 3.
Snell FD and Snell CT Colometric Methods of Analysis. 3rd Edition, Vol. 3. D. Van No-strand Company Inc., York, 1958; 37 - 38.
Alexander RR and Griffiths JM Basic Biochemi-cal Methods. 2nd Edition Wiley & Sons Inc, New York; 1993; 50 - 60.
Pearson D Laboratory Technique in Food Analysis. Butterworth and Co. Publishing Ltd. 1976; p. 233