State Of knowledge for gari/eba in Nigeria. Food Science, Gender & Market

Teeken Béla, Abolore Bello, Olaosebikan Deborah Olamide, Owoade Durodola, Kleih Ulrich, Fliedel Geneviève, Forsythe Lora. 2019. State Of knowledge for gari/eba in Nigeria. Food Science, Gender & Market. Ibadan : RTBfoods Project-CIRAD, 23 p.

Résumé : There is a diverse range of preferences of gari and eba related to ethnicity and socio-economic status. In general, processing is largely conducted by women. Processing and preparation steps differs according to variation in regional and ethnic preferences. South West (SW) consumers generally like a soft, low elasticity eba and a sour and an off-white, ivory, butter-like color for gari. Greyish gari is least liked, but is less expensive. Gari and eba are usually “cooked” less long, prepared by ending with adding hot water to gari. South South (SS) and South East (SE) consumers generally prefer hard, elastic eba and non-sour, white or yellow gari, the latter achieved from the addition of palm oil, which in turn might reduce storability. “cooking is longer” This is usually prepared by adding the gari to boiling water. SS like eba and gari can connect to the needs of specific occupations: In SW construction workers prefer a SS like eba, it takes more time before they get hungry again. Some food science expert key informants state that unfermented gari and eba have a lower glycemic index than fermented gari/eba. This needs clarification. It seems it is mainly the difference in cooking time/rehydration that creates the difference. Varieties with low starch may affect a gari that is traditionally cooked for a short time (SW): after preparation there will not be enough rehydration of the starch to make the eba hold together well. Also, higher dry matter and starch provide more gari yield. However the drawability and hardness of the eba seems majorly determined by the way eba is made: longer cooking means more rehydration and complete gelatinization and a harder more drawing eba. Sun drying to complete the drying of gari after roasting (SouthWest) effects the color as fermentation continues during sun drying. Swelling of gari is important: the higher bulk density of the gari, the higher the volume expansion from gari to eba, and the lower the bulk density the higher the volume of the eba per gram of gari Swelling of gari in cold water is significantly higher for fermented gari. This is a preffered trait for people that drink gari. Granule size is an important quality, which is influenced by the equipment used, but mainly by the contact temperature between the mash and the roasting board/pan (controllable by the speed of stirring and amount added per batch). Granules that are fine but not too fine are most liked. Consumer preferences for granule size requires clarification. Especially the general accepted idea in the literature that fermented gari is smaller in granule size Attractiveness, particularly color, is highly valued by consumers. Color is affected by fermentation, variety and sanitation during processing. A key informant stated that whiteness is achieved through peeling by de-wrapping opposed to peeling with a knife A significant indicator of the quality of gari and eba lies in the expertise with which it is processed, however, low dry matter /starch content and variety specific mash color after pressing can contribute to a lower quality product. Additional information is required on how and what kind of gari from the rural areas is assembled in towns/suburbs before it is bulked and sold as wholesale in cities. Processing equipment in processing centres is usually owned by men which women access through small fees. The future dynamics of this with regards to equity requires investigation. Cassava and gari have been an important historically providing a way for women in the South East and South South to empower themselves given the inequalities created by male dominated colonial rule. This still explains some gendered roles today. If we want to know the specific preferences of gari and eba in relation to the production and especially the processing steps and product quality, it is mostly experienced women that we have to consult. There is high demand for gari, and the market is characterized by perfect competition: there are many buyers and sellers who are not in a position to influence marketing transactions by refusing to either sell or buy. The largest gari supply is in the SW. Wholesale prices for gari in the SW are higher than the SE, where rural markets in the SW are closer to city markets compared to the SE, and a long fermentation period in the SW could impact prices. Most of the gari traded is white gari but a substantial part is yellow gari, traded in SS or SE as a result of adding palm oil, and its market price is higher; not only because of the palm oil added but also because of the more limited shelf life. About 1/3th - 1/4th of the gari traded in Lagos is yellow gari. There is gari supply from Taraba state in the North East. Kano is also a hub for export of gari from the Southern belt to the North, including North Cameroon, Chad, Niger, Burkina Faso and Mali. This shows the large role of gari in Nigeria, as a dry (transportable) and storable food product (in that respect comparable to rice).

Mots-clés libres : Cassava, Gari, Eba, Fermentation, Glycemic index

Agences de financement hors UE : Bill and Melinda Gates Foundation, Centre de Coopération Internationale en Recherche Agronomique pour le Développement, Centro Internacional de Agricultura Tropical, Institut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement, James Hutton Institute

Projets sur financement : (FRA) Breeding RTB Products for End User Preferences

Auteurs et affiliations

• Teeken Béla, IITA (NGA)
• Abolore Bello, IITA (NGA)
• Olaosebikan Deborah Olamide, IITA (NGA)
• Owoade Durodola, IITA (NGA)

Contributeurs et affiliations

• Kleih Ulrich, NRI (GBR) - collaborateur
• Fliedel Geneviève, CIRAD-PERSYST-UMR Qualisud (FRA) - collaborateur
• Forsythe Lora, NRI (GBR) - collaborateur

Source : Cirad-Agritrop (https://agritrop.cirad.fr/603441/)

Métriques

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