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. Author manuscript; available in PMC: 2021 Jan 29.
Published in final edited form as: Sustainability. 2020 Apr 24;12(8):3493. doi: 10.3390/su12083493

Table 1. Electronic databases searched.

Search Engine Phrase Particular to Index Terms Delimiters Results No. Included
Peer-reviewed Literature
SUN Search “Indigenous food crops” “South Africa” 2008–2019 572 66
“Indigenous food crops” “South Africa”
Google Scholar “neglected and underutilized” 2008–2019 1740 135
food crops “Africa”
“traditional food crops” “Africa”
Scopus “Indigenous food crops” “Africa” 2008–2019 121 12
South African National ETD (e-theses and Dissertations) Portal “Indigenous food crops” “South Africa” 2008–2019 6573 17
Grey Literature
Biodiversity International “indigenous food crops Africa” “Underutilized food crops Africa” None 1360 37
World Bank “Indigenous food crops Africa” “Benefits of indigenous foods in Africa” None 500 7
The International Fund for Agricultural Development (IFAD) “Indigenous food crops Africa” None 11 7
World Trade Organisation (WTO) “Indigenous food crops Africa” None 467 3
Food and Agricultural Organisation (FAO) “Indigenous food crops Africa” “Food system” None 100 21
Cross Reference 2008–2019 38