Description of the solar drying methods used for the most consumed leafy vegetables in Antananarivo
Malnutrition is alarming in Madagascar and its causes are multiple and interdependent. One of them is the lack of adequate means of preservation of the agricultural production, which is subject to rapid deterioration, although creating reserves of dried fruits, vegetables and leaves can help to balance the nutritional status of the family, especially during the lean season when vitamin deficiencies are highest. In Madagascar, leafy vegetables are an integral part of the Malagasy diet in which they are consumed cooked, at a high frequency and always with rice. They play an extremely important role in food security and the fight against poverty in Africa; their richness in iron, vitamins A and C corresponds to particularly significant health in countries like Madagascar where there are many cases of anemia vitamin A deficiency and immune deficiency. Moreover, because of their low price, they are accessible to the majority of Malagasy households. However, they are easily deteriorated due to their high water content. Thus, it seemed interesting to do an inventory of leafy vegetables sold in dry form in 3 markets of Antananarivo and to describe the solar drying modalities, currently the most used method for conserving them. Leafy vegetables include ravitoto (Manihot esculenta), ravintsaonjo (Colocosia esculenta), ravimbomanga (Ipomea batatas), anatsinahy (Bidens pilosa), anamalaho (Spilanthes oleracea), anamamy (Solanum nigrum) and petsay (Brassica pekinensis). A field observation allowed the description of the different phases of the preparation before drying, then the drying process itself with the determination of the time and duration parameters and finally the conditioning of the dried leaves.
Razafindratovo-Andriamanamisata, V., Rabeharindrasana, M. and Ralison, C. (2020). Description of the solar drying methods used for the most consumed leafy vegetables in Antananarivo. Acta Hortic. 1267, 175-180
leafy vegetables, dried leaves, solar drying, conservation, Madagascar