Decision-makers require hard scientific evidence on the nutrient quality of local crops if they are to promote the use of traditional agrobiodiversity in policies that target food security and nutrition. Below are some evidential highlights BFN has gathered to date on the nutrient composition of underutilized traditional plants in the four countries where it operates, as well as information on what hinders and what drives local people to eat them on a regular basis. Across the countries food composition data is being collected for 154 prioritized species, which are being fed into national food composition tables, national dietary guidelines and into the global FAO/INFOODS database. These analyses help to demonstrate that differences in nutrient content between varieties of the same species can be as significant as differences between species, and that choosing to eat one or another variety can tip the scale between nutrient adequacy and nutrient deficiency. Finally, we want the evidence generated to widen the global knowledge and raises awareness of the importance of local biodiversity for food and nutrition for improving diets, and so we have included a list of the prioritized species (by country) we are currently focusing on.
In Kenya, local landraces of Bambara nut were found to be on average lower in fat and sodium and higher in fibre than commonly consumed groundnut, with almost double the potassium content.
Local landraces of finger millet were found to be on average higher in calcium and magnesium, and to contain on average 6 times more iron and twice as much fibre than commonly consumed maize.
Perhaps the most significant discovery was the difference in nutritional value between different varietals of finger millet and Bambara nut. Within the same species, four varietals were analysed to evaluate their nutrient composition, and certain varietals stood out due to their significantly higher nutrient values. For example, one of the four varieties of Bambara nut Vigna subterranea KARI/BN/21, is higher in iron, magnesium, potassium and fat per 100g, while Vigna subterranea KARI/BN/13 and Vigna subterranea KARI/BN/4 is higher in protein and fibre per 100g.
One of the four varieties of Bambara nut, Vigna subterranea KARI/BN/21, was found to be higher in iron, magnesium, potassium and fat per 100g, while Vigna subterranea KARI/BN/13 and Vigna subterranea KARI/BN/4 are higher in protein and fibre per 100g.
In Sri Lanka, data collected on household diet diversity scores (HDDS) determined using in-person 24-hour diet recalls in Gampola and Udakumbura revealed that 50% of the households interviewed had economic access to a variety of food groups, and that traditional vegetables, legumes and fruits were included in diets, but preferences varied by region.
Fruits and fish were the least consumed food groups, and recommendations were made for promoting these foods in future public health interventions.
Research teams from Wayamba, Peradeniya and Ruhuna University gathered complementary data about Potentially Important Regional (PIR) foods that are both high in micronutrients and were locally preferred across pilot sites. These included gotukola (Centella asiatica), pumpkin (Cucurbita maxima and Cucurbita moschata) and eggplant (Solanum melongena). Regional differences in PIR food preference were reported, with ridge gourd, mango and papaya popular in the Gampola site, but not in the Udakumbura and Sinharaja sites.
In Turkey, food composition and antioxidant activity analyses were completed for 40 prioritized species of wild edibles collected in the Aegean, the Black Sea and the Mediterranean Regions. Preliminary data analysis illustrates that cracked einkorn wheat (bulgur) from local landraces contains on average 5 times more zinc, 4 times more iron and more calcium than commonly consumed wheat. DPPH antioxidant assays were also carried out on selected prioritized species to determine their natural antioxidant activity.
High antioxidant activity was determined in Elm-leaved sumach (Rhus coriaria 1825.26 mg sample/g dpph-1) and in Berberis (Berberis crataegina, 1380.63 mg sample/g dpph-1), with values similar to the manmade antioxidant Butylated Hydroxytolune (BHT, 2101.23 mg sample/g dpph-1).
Low antioxidant activity was determined in species used for their roots such as Gypsophila arrostii (3.96 mg sample/g dpph-1), Ferula elaeochytris (5.46 mg sample/g dpph-1) and species such as cowpea (Vigna unguiculata 17.89 mg sample/g dpph-1) and einkorn wheat (Triticum monococcum 1.56 mg sample/g dpph-1).
In Brazil, MSc students and researchers from the Federal Universities of Ceará Goiás, São Paulo, the Federal University of Pará, and Rio Grande do Sul have compiled national food composition data using the FAO-INFOODS methodology through the systematic and quantitative review of secondary data sources, particularly MSc and PhD thesis and other grey literature. Food composition tables from Brazil, USDA, and the Canadian Nutrient File were also explored for data on prioritized species.
In the first MSc thesis to emerge from the BFN project, nutrition data for 21 prioritized species was compiled and compared with the most commonly consumed fruits in Brazil (according to the most recent Household Survey – POF 2008-2009): banana, orange, apple, papaya and watermelon. Results highlighted the higher contents of dietary fibre, calcium, iron, magnesium, vitamin C and vitamin E contained in native fruits (for those fruits for which data was available).
The vitamin C content in 100g of the pulp of four native fruits – pequí (43.2mg), mangaba (163.3mg), cagaita (48.6mg), and aracá (38.8mg) - are at least 6 times the amount contained in 100g of common varieties of banana (5.9mg), watermelon (6.1mg), and apple (1.5mg).
A BFN partnership was established with the Horticultural Division of the Brazilian Corporation of Agricultural Research (EMBRAPA Hortaliças) for the inclusion of traditional vegetables in the “Plants for the Future” initiative. This initiative leads many important agricultural programmes that aid in: i) the identification of native Brazilian flora that are used both locally and regionally but currently do not fulfil their economic potential, ii) the promotion of the direct use of these plants by farmers and agricultural producers, and iii) the creation of an enabling environment for increased investment opportunities and business creation to drive the development of new marketable local products. So far, EMBRAPA have played a key partnering role in the implementation of BFN activities and the continuous growth of the nutritional database. Information on six native vegetables was included in the Plants for the Future publication for the Midwestern region. Furthermore, food composition analysis of 20 leafy species (six of which are native to Brazil) is currently being carried out by EMBRAPA.
KENYA Prioritized Species
| |
Common Name | Latin Name |
Mushrooms | Agaricus spp. |
Amaranth | Amaranthus dubius |
Jackfruit | Artocarpus heterophyllus |
Malabar spinach | Basella alba |
Ethiopian mustard | Brassica carinata |
Spider plant | Cleome gynandra |
Taro | Colocasia esculenta |
Brown quail | Coturnix ypsilophora |
Slenderleaf rattlebox | Crotalaria ochroleuca |
Finger millet | Eleusine coracana |
Sweet potato | Ipomea batatas |
Moringa | Moringa oleifera |
Guinea fowl | Numida spp. |
Tilapia | Oreochromis niloticus |
Mud fish | Protopterus annectens |
Guava | Psidium guajava |
Sorghum | Sorghum bicolor |
Green gram | Vigna radiata |
Bambara groundnut | Vigna subterranea |
Cowpea | Vigna unguiculata |
BFN SRI LANKA Prioritized Species
| |
Common Name | Latin Name |
Jackfruit | Artocarpus heterophyllus |
Rajala White yam var. | Dioscorea alata |
Rajala Purple yam var. | Dioscorea alata |
Kukulala yam variety | Dioscorea esculenta |
Finger millet | Eleusine coracana |
Anamalu var. | Musa acuminata |
Red banana - Rathabala var. | Musa acuminata |
Sour banana - Ambul variety | Musa x paradisiaca |
Sweet banana - Seeni var. | Musa x paradisiaca |
Silk banana - Kolikuttu var. | Musa x paradisiaca |
Fragrant rice - Suwandel variety | Oryza sativa L. |
Dark rice - Kalu heenaty var. | Oryza sativa L. |
Red rice - Kuruluthuda var. | Oryza sativa L. |
Red rice - Madathawalu var. | Oryza sativa L. |
Lord Buddha's rice - Pachchaperumal var. | Oryza sativa L. |
Suduru Samba var. | Oryza sativa L. |
Pokkali var. | Oryza sativa L. var. pokkali |
Sri Lanka Eggplant - Wambatu variety | Solanum melongena |
Thai eggplant - Talanabatu variety | Solanum melongena |
BFN TURKEY Prioritized Species
| |
Common Name | Latin Name |
Calamus or Sweet flag | Acorus calamus |
Ground elder | Aegopodium podagraria |
Berberis | Berberis crataegina |
Sea beet | Beta vulgaris subsp. maritima |
Borage | Borago officinalis |
Caper bush | Capparis spinosa |
Shepherd's-purse | Capsella bursa-pastoris |
Lamb's quarters,goosefoot | Chenopodium album |
Skunkweed, Wormseed | Chenopodium ambrosioides var. anthelminticum L. |
Rush skeletonweed | Chondrilla juncea |
Common chicory | Cichorium intybus |
Samphire | Crithmum maritimum |
Foxtail lily | Eremurus spectabilis |
Fennel | Foeniculum vulgare |
Crown daisy | Glebionis coronaria or Chrysanthemum coronarium L. |
Syrian juniper | Juniperus drupacea |
Saffron milk cap | Lactarius deliciosus |
White lupin | Lupinus albus |
Watercress | Nasturtium officinale |
Star-of-Bethlehem | Ornithogalum umbellatum |
Indian knotgrass | Polygonum cognatum |
Wild radish | Raphanus raphanistrum L. |
Buckthorn | Rhamnus petiolaris |
Elm-leaved sumach | Rhus coriaria |
Sheep's sorrel | Rumex acetosella |
Glasswort | Salicornia europaea |
Common golden thistle | Scolymus hispanicus |
Bladder campion | Silene vulgaris |
Salsaparilla | Smilax excelsa |
Alisanders, Horse parsley | Smyrnium olusatrum L. |
Purple salsify | Tragopogon porrifolius subsp. longirostris |
Einkorn wheat | Triticum monococcum |
Cowpea | Vigna sinensis (Vigna unguiculata) |
BFN BRAZIL Prioritized Species
| |
Common Name | Latin Name |
Feijoa | Acca sellowiana |
Cajú rasteiro | Anacardium corymbosum |
Monkey nut | Anacardium humile |
Miniature cashew | Anacardium microcarpum |
Dwarf cashew | Anacardium nanum |
Tree cashew of the cerrado (cajuí) | Anacardium othonianum |
Cerrado pineapple | Ananas ananassoides |
Marolo or Araticum do cerrado | Annona crassiflora |
Paraná pine | Araucaria angustifolia |
Tucumã | Astrocaryum aculeatum |
Jelly Palm | Butia capitate |
Coastal Jelly Palm | Butia catarinensis |
Woolly Jelly Palm | Butia eriospatha |
Savanna serret (murici) | Byrsonima crassifolia |
Murici | Byrsonima verbascifolia |
White Guabiroba | Campomanesia adamantium |
Guabiroba | Campomanesia xanthocarpa |
Yellow lantern chili | Capsicum chinense Jacq. |
Wild chilli pepper | Capsicum flexuosum |
Chilli pepper | Capsicum frutescens |
Pequí or souari nut | Caryocar brasiliense |
Copaiba | Copaifera multijuga |
Copaiba | Copaifera reticulata |
Sacaca | Croton cajucara |
Flatsedge | Cyperus articulatus |
Cush-cush | Dioscorea trifida |
Baru tree | Dipteryx alata |
Tonka bean tree or Cumaru | Dipteryx odorata |
Cagaiteira | Eugenia dysenterica |
Cherry of the Rio Grande | Eugenia involucrate |
Brazilian Pear | Eugenia klotzchiana |
Uvaia | Eugenia pyriformis |
Araza (Araçá, araçá-boi) | Eugenia stipitata |
Surinam Cherry, Cayenne cherry | Eugenia uniflora |
Ucara Palm, Heart-of-Palm | Euterpe edulis |
Açaí palm | Euterpe oleracea |
Mountain Cabbage Palm (Açaí solteiro) | Euterpe precatoria |
Genipapo | Genipa Americana |
Mangaba | Hancornia speciose |
Legume (Jatobá-Do-Cerrado, Jataí or Jutaí) | Hymenaea stigonocarpa |
Brazilian cherry or South American cherry (Jatobá) | Hymenaea courbaril |
Brazilian mint | Hyptis crenata |
Buriti | Mauritia flexuosa |
Camu camu | Myrciaria dubia |
Jabuticaba | Myrciaria jaboticaba |
Bacaba | Oenocarpus bacaba |
Bacaba | Oenocarpus distichus |
Bacaba | Oenocarpus mapora |
Bacaba | Oenocarpus minor |
Prickly pear | Opuntia elata |
Prickly pear | Opuntia paraguayensis |
Passion fruit (maracujá do mato) | Passiflora actinia |
Passion fruit | Passiflora cincinnata |
Passion fruit | Passiflora serratodigitata |
Passion fruit | Passiflora setacea |
Fisális, camapu | Physalis pubescens |
Craveiro do mato | Pimenta pseudocaryophyllus |
Matico | Piper aduncum |
Hoja santa | Piper hispidinervium |
Bacuri | Platonia insignis |
Brazilian grape (jabuticaba) | Plinia cauliflora |
Jabuticaba | Plinia trunciflora |
White Pitch (Breu-branco) | Protium heptaphyllum |
White Pitch (Breu-branco) | Protium pallidum |
Purple guava (Araçá ) | Psidium cattleyanum |
Brazilian guava, sour guava, Guinea guava | Psidium guineense |
Brazilian pepper tree (Aroeira-periquita) | Schinus terebinthifolius |
Yellow mombin | Spondias mombin |
Umbu-cajá | Spondias spp. |
Brazil plum (umbu) | Spondias tuberosa |
Cupuaçu | Theobroma grandiflorum |
Lady's Legs (crem) | Tropaeolum pentaphyllum |
Calasacha (Jaracatiá; Mamãozinho) | Vasconcellea quercifolia |
Due to the limited scientific evidence available on the nutritional benefits of local biodiversity, this on-going research is vital for feeding into the global knowledge confirming the genetic and adaptive capacities of local foods. By making this information widely available, and continually adding biodiverse traditional foods to existing national and international food composition databases, we can revive the use and appreciation of these foods with high nutritional value, and mainstream them back into daily diets for improved nutrition, health and well-being.
Collecting, documenting, and disseminating traditional knowledge about growing, harvesting and processing these foods is also extremely important for reconnecting younger generations with their food supply and food culture. Our global portal of case studies from around the world showcases some of the exciting new progress and capacity development in these areas, helping to re-establish biodiversity as a key element of daily diets in communities and households, and improve the livelihoods of local farmers and food producers.
The GEF 'Mainstreaming biodiversity for nutrition and health' initiative is led by Brazil, Kenya, Sri Lanka and Turkey and coordinated by Bioversity International, with implementation support from the United Nations Environment Programme (UNEP) and the Food and Agriculture Organization of the United Nations (FAO) and additional support from the CGIAR Research Program on Agriculture for Nutrition and Health.