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Estimation of ascorbic acid, sodium, potassium and sugar contents in different stages of guava from Malir, Karachi, Pakistan

Research Paper | March 1, 2018

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Kashif Ahmed, Naveed Hassan

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Int. J. Biosci.12( 3), 235-238, March 2018

DOI: http://dx.doi.org/10.12692/ijb/12.3.235-238


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The study shows Quantitative analysis for Ascorbic Acid (Vitamin C), Sugar contents and Minerals (Sodium and Potassium) at different stages of guava (Psidium guajava) ripening period. Results showed that 100g of guava fruit give 228 mg average weight of vitamin C, the value larger than three times that of DRI (daily recommended intake). External thick skin of guava fruit have exceptionally higher levels of Ascorbic Acid i.e. vitamin C than the central pulp. It was found that all of these components increases with the passage of time then remain constant after its ripening period (three to four weeks). The work will serve baseline information for other studies.


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Estimation of ascorbic acid, sodium, potassium and sugar contents in different stages of guava from Malir, Karachi, Pakistan

Bashir, Hind A, Abu-Bakr A, Abu-Goukh. 2003. Compositional changes during guava fruit ripening. Food Chemistry 80(4), 557-563.

Deb AC. 1998. Fundamentals of biochemistry, Seventh edition, New Central Book Agency (P) Ltd., 8/1, Chintamoni Das Lane, Calcutta 700 009 (India), P-415-418.

El-Zoghbi. 1994. Biochemical changes in some tropical fruits during ripening. Food Chemistry 49(1), 33-37.

Haquea MN, Sahab BK, Raul K, Nurul Huda M. 2009. Evaluation of Nutritional and Physico-Chemical Properties of Several Selected Fruits in Bangladesh. Bhuiyanb Bangladesh Journal of scientific and industrial Research 44(3), 353-358.

Howerde E, Sauberlich, Martin D, Stanley T. 1982. Determination of Ascorbic Acid and Dehydroascorbic Acid. Ascorbic Acid: Chemistry, Metabolism, and Uses. American Chemical Society 200, 199-221.

Premuzic Z, Martha B, Garcia A, Alicia R, Lorio A. 1998. Calcium, iron, potassium, phosphorus, and vitamin C content of organic and hydroponic tomatoes. Hort. Science. 33(2), 255-257.

Tiitinen KM, Yang B, Haraldsson, Jonsdottir S, Kallio HP. 2006. Fast Analysis of Sugars, Fruit Acids, and Vitamin C in Sea Buckthorn (Hippophaë rhamnoides L.) Varieties. Journal of Agricultural and Food Chemistry 54(7), 2508-2513.