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Solar drying of mangoes: opportunities for combating vitamin A deficiency in Sub-Saharan Africa

Viola Salvador, Paula LU and Gómez Galindo, Federico LU orcid (2025) In Foods 14(22).
Abstract
Vitamin A deficiency (VAD) remains a severe health issue in sub-Saharan Africa, causing blindness, illness, and child mortality. In Mozambique, about 69% of children under five are affected, highlighting the short-term impact and donor dependence of supplementation programs. Mangoes (Mangifera indica L.), rich in provitamin A carotenoids, offer a sustainable, food-based strategy to reduce VAD, but their high perishability and postharvest losses of 20–40% limit their impact. This review combined analysis of 21 studies on solar drying of mangoes in Africa with interviews from health directors in three districts of Inhambane Province, Mozambique, to assess both technical and practical aspects of mango utilization. Findings show that improved... (More)
Vitamin A deficiency (VAD) remains a severe health issue in sub-Saharan Africa, causing blindness, illness, and child mortality. In Mozambique, about 69% of children under five are affected, highlighting the short-term impact and donor dependence of supplementation programs. Mangoes (Mangifera indica L.), rich in provitamin A carotenoids, offer a sustainable, food-based strategy to reduce VAD, but their high perishability and postharvest losses of 20–40% limit their impact. This review combined analysis of 21 studies on solar drying of mangoes in Africa with interviews from health directors in three districts of Inhambane Province, Mozambique, to assess both technical and practical aspects of mango utilization. Findings show that improved solar dryers reduce drying time by up to 40 h compared with open-sun drying, achieve safe moisture content below 12%, and retain 60–90% of β-carotene—significantly higher than the 40–55% typical of open-sun methods. One hundred grams of solar-dried mango can meet 60–100% of a child’s or 50–70% of a woman’s daily vitamin A needs. Despite these advantages, interviews revealed limited community adoption and persistent dependence on supplementation. To bridge this gap, initiatives must enhance training, access to affordable dryers, and policy integration to turn seasonal mango surpluses into sustainable, year-round nutrition solutions. (Less)
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author
and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Foods
volume
14
issue
22
article number
3979
pages
21 pages
publisher
MDPI AG
external identifiers
  • scopus:105022887264
  • pmid:41300136
ISSN
2304-8158
DOI
10.3390/foods14223979
language
English
LU publication?
yes
id
107935fc-3ac7-442e-8f96-71853eb074e2
date added to LUP
2025-12-02 12:08:47
date last changed
2025-12-05 03:05:33
@article{107935fc-3ac7-442e-8f96-71853eb074e2,
  abstract     = {{Vitamin A deficiency (VAD) remains a severe health issue in sub-Saharan Africa, causing blindness, illness, and child mortality. In Mozambique, about 69% of children under five are affected, highlighting the short-term impact and donor dependence of supplementation programs. Mangoes (Mangifera indica L.), rich in provitamin A carotenoids, offer a sustainable, food-based strategy to reduce VAD, but their high perishability and postharvest losses of 20–40% limit their impact. This review combined analysis of 21 studies on solar drying of mangoes in Africa with interviews from health directors in three districts of Inhambane Province, Mozambique, to assess both technical and practical aspects of mango utilization. Findings show that improved solar dryers reduce drying time by up to 40 h compared with open-sun drying, achieve safe moisture content below 12%, and retain 60–90% of β-carotene—significantly higher than the 40–55% typical of open-sun methods. One hundred grams of solar-dried mango can meet 60–100% of a child’s or 50–70% of a woman’s daily vitamin A needs. Despite these advantages, interviews revealed limited community adoption and persistent dependence on supplementation. To bridge this gap, initiatives must enhance training, access to affordable dryers, and policy integration to turn seasonal mango surpluses into sustainable, year-round nutrition solutions.}},
  author       = {{Viola Salvador, Paula and Gómez Galindo, Federico}},
  issn         = {{2304-8158}},
  language     = {{eng}},
  month        = {{11}},
  number       = {{22}},
  publisher    = {{MDPI AG}},
  series       = {{Foods}},
  title        = {{Solar drying of mangoes: opportunities for combating vitamin A deficiency in Sub-Saharan Africa}},
  url          = {{http://dx.doi.org/10.3390/foods14223979}},
  doi          = {{10.3390/foods14223979}},
  volume       = {{14}},
  year         = {{2025}},
}