ASCORBIC ACIDS CONTENTS IN COMMERCIAL JUICES AND BEVERAGES

Authors

  • B. Maryam Department of Environmental Science, International Islamic University, Islamabad, PakistanNucleus
  • R. Rafique Department of Environmental Science, International Islamic University, Islamabad, Pakistan
  • Miss. Quratulain Department of Environmental Science, International Islamic University, Islamabad, Pakistan
  • A. Mashiatullah Isotope Applications Division, Directorate of Technology, PINSTECH, Islamabad, Pakistan
  • T. Sultana Department of Environmental Science, International Islamic University, Islamabad, Pakistan
  • T. Javed Isotope Applications Division, Directorate of Technology, PINSTECH, Islamabad, Pakistan

Abstract

Vitamin C is water soluble which is essential for many physiological processes. Humans cannot synthesize vitamin C, so it must be taken through diet or as food supplement. Nowadays many liquid juices available in the market claim high levels of vitamin C. The present study was designed to check levels of vitamin C in commercially available juices and to verify manufacturers claim of vitamin C addition. Twenty five (25) juices, beverages, solid soft drinks of various brands were purchased from five locations in Islamabad and their ascorbic acid content was determined by Polarography. Juices were categorized into four groups namely international companies, Pakistani companies of good repute, other local companies, and solids drinks/ vitamin C supplement tablets. Results showed that measured and reported values of vitamin C in some international brand juices are comparable while others are not. Most of the reputed companies of Pakistan origin did not have any vitamin C in their products or their amount was negligible when compared with the reported values. Overall vitamin C was below detectable limit in juice packs of local companies. Vitamin C concentration in vitamin C tablets and solid soft drinks is comparable with reported values. On the basis of this study it is suggested that local companies may be using some chemical to develop taste and flavor of vitamin C in their products. It is recommended that strict quality control be implemented at the factories to prepare such products with correct amounts of vitamin C.

References

J. J. Burns. Am. J. Med. 26 (1959) 740.

S.K. Gaby and V.N. Singh, Vitamin C,

Vitamin Intake and Health, A Scientific

Review, S.K. Gaby, A. Bendich, V. Singh,

and L. Machlin (Eds.), Marcel Dedder, N.Y

(1991).

B.S. Platt, T.P. Eddy and P.L. Pellett, Food in

Hospitals, Oxford University Press, London

(1963).

E. N. Whitney and S. R. Rolfes,

Understanding Nutrition, New York: West

Publishing Company (1992).

K.A. Naidu, J. Nutri. 2 (2003) 7.

S. Munir, A. Mashiatullah, S. Mahmood, T.

Javed, M.S Khan and M. Zafar, The Nucleus

, No. 2 (2011) 149.

V. Kabasakalis, D. Siopidou and E.

Moshatou, Food Chem. 70 (2000) 325.

K. Zerdin, M.L.Rooney and J.Vermue, Food

Chemistry 82 (2003) 387.

J. R. Johnson, R. J. Braddock and C. S.

Chen, J. Food Sci. 60, No. 3 (1995) 502.

H. S. Lee and S. Nagy, J. Food Sci. 53, No. 1

(1988 a) 168.

O. Solomon, U. Svanberg and A. Sahlstrom,

Food Chem. 53 (1995) 363.

B. Larisch, U. Grob and M. Pischetsrieder,

Zeitschrift fur Lebensmittel-Untersuchung

Und-Forschung 206 (1998) 333.

F.E. Huelin, Food Res. 18 (1953) 633.

G.L. Robertson and C.M.L. Samaniego, J.

Food Sci. 51, No. 1 (1986) 184.

L.R. Gordon and M.C. Samaniego-Esguerra,

J. Food Qual. 13 (1990) 361.

N.A. M. Eskin, Biochemistry of Food

Processing, Browning Reactions in Foods. In

Biochemistry, Philadelphia, PA., Second

Edition (1990) p. 240.

H. S. Lee and S. Nagy, Food Tech. 11 (1988)

A. Ibarz, J. Paga´n and S. Garza, J. Food

Eng. 39 (1999) 415.

S. Nagy, R. L Rouseff, J. F. Fisher and H.S.

Lee, J. Agri. Food Chem. 40 (1992) 27.

V. Yaylayan, Food Sci. and Tech. 1, No. 7

(1990) 20.

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Published

13-12-2012

How to Cite

[1]
B. Maryam, R. Rafique, M. Quratulain, A. Mashiatullah, T. Sultana, and T. Javed, “ASCORBIC ACIDS CONTENTS IN COMMERCIAL JUICES AND BEVERAGES”, The Nucleus, vol. 49, no. 4, pp. 319–327, Dec. 2012.

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