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Degradation of quality attributes of sweetened Julie and Ogbomoso mango juices during storage

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Abstract

Changes in the quality attributes of sweetened Julie and Ogbomoso mango juices were investigated. Sweetened mango juices were processed, bottled and stored at 25 °C for 12 weeks. The titratable acidity, pH, total solids, ash, soluble solids and ascorbic acid contents were evaluated immediately after processing and subsequently at 2-week intervals. The L*, a* and b* (HunterLab) parameters were determined to evaluate colour changes due to non-enzymatic browning.

Generally, the quality attributes of the sweetened mango juices decreased during storage. The titratable acidity, pH, total solids, ash, soluble solids and ascorbic acid contents decreased during storage. After 12 weeks of storage, the percentage ascorbic acid loss of sweetened Julie and Ogbomoso mango juices was 16.25 and 16.67%, respectively. Browning index, chroma and b* values increased during storage. Colour changes in sweetened mango juices were mainly due to b* value and chroma.

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Authors and Affiliations

  1. Department of Food Technology, University of Ibadan, Ibadan, Nigeria

    K. O. Falade & A. A. Ogunlade

  2. National Institute for Horticulture and Training, Idi-Ishin, Ibadan, Nigeria

    S. O. Babalola & S. O. S. Akinyemi

Authors
  1. K. O. Falade
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  2. S. O. Babalola
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  3. S. O. S. Akinyemi
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  4. A. A. Ogunlade
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Correspondence to K. O. Falade.

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Falade, K.O., Babalola, S.O., Akinyemi, S.O.S. et al. Degradation of quality attributes of sweetened Julie and Ogbomoso mango juices during storage. Eur Food Res Technol 218, 456–459 (2004). https://doi.org/10.1007/s00217-004-0878-5

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  • DOI: https://doi.org/10.1007/s00217-004-0878-5

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