Monitoring of stability evolution of micro filtered black plum nectar from Côte d'Ivoire during storage
1 Laboratory of Biochemistry, Microbiology and Valorization of Agricultural Resources, Institute of Agropastoral Management, Péléforo GON COULIBALY University, BP 1328 Korhogo, Côte d’Ivoire.
2 Department of Chemical and Food Engineering, National Polytechnic Institute Félix Houphouët-Boigny, BP 1093 Yamoussoukro, Côte d’Ivoire.
Research Article
GSC Biological and Pharmaceutical Sciences, 2022, 21(02), 155–162.
Article DOI: 10.30574/gscbps.2022.21.2.0431
Publication history:
Received on 03 October 2022; revised on 08 November 2022; accepted on 12 November 2022
Abstract:
Food industry and more specifically that of juices in Côte d'Ivoire, is gradually turning to local fruits. New products, sometimes derived from wild fruit species, are appearing on the market. The savannah plum tree (Vitex doniana) hitherto undervalued, is experiencing renewed interest due to its socio-economic importance for local populations. Its black plum fruit, rich in bioactive compounds, has been semi-industrially transformed into nectar. However, without the addition of preservatives, this nectar faces a probable reduced shelf life. The nectar used for this study was developed from fruits harvested in three (3) regions of northern Côte d'Ivoire. Monitoring of the evolution of biochemical parameters of this nectar, during storage, was carried out by conventional methods of biochemical analysis. At the end of this study, it appears that acidity and soluble dry extract of the nectar studied increases with rise in storage temperature. Vitamin C losses are reduced when the storage temperature is low. The more the shelf life of the nectar increases, the more it registers a drop in its nutritive value. To take full advantage of the benefits of this black plum nectar, it is best to store it at refrigeration temperature (4 °C) for a maximum of ten (10) weeks.
Keywords:
Vitex doniana; Black plum; Microfiltered nectar; Food monitoring; Product shelf life; Storage time
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