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International Journal of
Food Science and Nutrition
ARCHIVES
VOL. 8, ISSUE 1 (2023)
Characterization of phytonutrients of the pulp of three endemic Malagasy baobab and one African species according to the treatment method of conservation and harvest area
Authors
Vonimanitra Razafindrazaka, Heritoky Ranjakaharisaina, Harison Rakoto, Axelle Septembre-Malaterre, Charlotte Ralison
Abstract
In order to provide extensive data on the nutritional value and antioxidant capacity of Baobab pulp extracts, 4 species were selected: Adansonia grandidieri, A. rubrostipa, A. za, A. digitata. A comparative analysis was carried out according to the species, the treatment method of conservation performed and the harvesting area identified. The fruit pulps collected from different areas are submitted to 3 treatments: freezing at -20 °C, indirect sun drying and freeze-drying at -60 °C for 10 hours. The nutritional values are measured: by gravimetry at 103 °C for humidity, by the Kjeldhal method for proteins, by hexane extraction for fats, incineration at 550 ° C for ash and by the enzymo gravimetric method for dietary fibers. The antioxidant capacity is assessed by the DPPH radical measurement. The water content of the pulps is between 12 and 14%; it can reach less than 10% after freeze-drying or sun-drying. The proteins quantities vary from 2 to 5% and from 0.2 to 2% of dry matter for lipids. The crude ash contents, fluctuates from 5.8 to 11.7% of dry matter. Antioxidant capacity varies from 9 to 63 µmol TE/g of dry matter. The results highlight nutrient values that are function of species, processing and harvesting areas. In conclusion i) Endemic species have better nutritional qualities while digitata has higher antioxidant activity ii) Freeze-drying better preserves nutritional values and antioxidant activities of the pulps.
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Pages:40-46
How to cite this article:
Vonimanitra Razafindrazaka, Heritoky Ranjakaharisaina, Harison Rakoto, Axelle Septembre-Malaterre, Charlotte Ralison "Characterization of phytonutrients of the pulp of three endemic Malagasy baobab and one African species according to the treatment method of conservation and harvest area". International Journal of Food Science and Nutrition, Vol 8, Issue 1, 2023, Pages 40-46
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