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Promoting dye sorghum cultivation in Benin (Dyegrain)

ARF-3-2c Benin Dyegrain

Duration: 19 June 2017 to 15 June 2020

Project information

Aim: Dye sorghum varieties have the distinct advantages to produce bio-colorants-containing leaf sheaths, while producing at the same time grain, which at present is not yet fully valorised in Benin for human consumption. This project “Promoting dye sorghum cultivation to improve livelihoods in rural Benin in a context of climate change (Dyegrain)” addresses the commercial production of dye sorghum and the processing of its bio-colorants and grain in order to improve rural livelihoods in Benin.

Objectives: The main objective is to valorize the natural bio-colorants and grains of dye sorghum to improve livelihoods in rural Benin. More specifically to:

  • Select elite dye sorghum varieties;
  • Optimize agronomic management practices;
  • Establish sustainable supply chains for leaf sheaths and dye sorghum grain;
  • Develop commercial extraction methods for dye sorghum bio-colorants;
  • Develop processing methods to enhance edibility of dye sorghum grain;
  • Incorporate socio-economic factors influencing dye sorghum production;
  • Train rural farmers and local SMEs for commercial production and processing of dye sorghum;
  • Disseminate the project outputs.

Method: The project is structured in 8 work packages to be carried out in an interdisciplinary setting that addresses the important links of the production chain: (i) Varieties’ selection and seed production, and optimization of cultivation practices, (ii) Extraction of bio-colorants and grain processing into foods, (iii) Quality assurance in the supply chain, (iv) Socio-economic profiling of production and marketing of the dye sorghum products and (iv) Technology transfer to stakeholders. Capacity building is also ascertained in 4 research projects for MSc students.

Country: Benin.

Dutch policy goals: Eradicating existing hunger and malnutrition; Promoting inclusive and sustainable growth in the agricultural sector.

Progress reports

Year 1: This project started on 15 September 2017 and aims to valorize the dye sorghum to improve livelihoods in rural Benin. Seeds of dye sorghum varieties have been collected and trials for the selection of elite varieties are ongoing. Farmers have successfully cultivated the dye sorghum crop on the commercial basis and Leman sarl purchased a total of 1800 Kg of fresh leaves for international trade. Approaches for appropriate postharvest handling of leaf sheaths have been developed at Leman Sarl and the company has successfully exported a first batch of 250 Kg of dry leaf sheaths to Naturex in France. A second batch of 600 Kg of leaf sheaths is currently ready at Leman Sarl for exportation. The project committed ACT students at Wageningen University & Research to explore the potential of dye sorghum and create international business cases for Benin. During a preliminary experiment, the team has successfully malted and brewed grain of dye sorghum using a traditional beer process. Management and coordination mainly focused on preparation and organization of the launching workshop in Cotonou, two follow-up meetings and five steering committee meetings; communication between partners through Skype meetings, email exchanges and visits. Three master students were recruited and have completed their research proposals.


Related articles
ARF-3 final factsheet: Dyegrain project in Benin
November 11, 2019Research project
ARF-3 final factsheet: Dyegrain project in Benin

Please download the final factsheet of the ARF-3 Dyegrain project in Benin, in which the consortium shares its final research findings: farmers have successfully cultivated dye sorghum crop on a commercial basis and Leman Sarl, the private partner, purchased a total of 1800 Kg of fresh leaves for international trade.  »

News update on dye sorghum cultivation in Benin
February 6, 2018Research project
News update on dye sorghum cultivation in Benin

Rob Nout and Anita Linnemann of Wageningen Food Quality and Design are visiting Benin in the context of the ARF project “Promoting dye sorghum cultivation”. They were given a demonstration about the traditional use of sorghum bio-colorant for colouring local cheese (“wagashi”). »

Launch Dyegrain project
January 31, 2018Research project
Launch Dyegrain project

The Applied Research Fund project “Promoting dye sorghum cultivation to improve livelihoods in rural Benin in a context of climate change (Dyegrain)”, was launched on January 30, 2018 in Cotonou, Benin. Many stakeholders from various production zones participated in the meeting. »