The aim of this study is to propose a revised treatment scheme for fresh kola nuts (Cola nitida) using Hazard Analysis Critical Control Point (HACCP). Specifically, this will involve analysing the nut processing diagram used by the stakeholders, identifying critical points and proposing corrective measures for these critical points. A survey at kola producers and traders, coupled with an on-site diagnosis, was carried out in the cities of Anyama, Bouaké and Agboville. The verification of the preconditions was based on a checklist. In addition, the kola nut processing and storage system was evaluated according to the 12 steps of the HACCP system. The diagnosis of the sector revealed an informal organization and traditional practices. A revised diagram of the cola treatment process according to the HACCP system has been developed. This diagram includes three critical control points (CCPs) at the reception, sorting and biopesticide treatment level. A HACCP plan has been drafted to better monitor and control each critical point. The technical routes for processing cola do not guarantee good quality nuts. They do not comply with good hygiene practices (GHP) during the processing and storage process. The adoption and monitoring of the HACCP system would be beneficial for the kola industry.
The conservation of cola nuts (Cola nitida) poses a real problem in Côte d'Ivoire because of the post-harvest losses. The objective of this study was to evaluate the impact of post-harvest technologies on organoleptic and physical properties of cola nut during storage. A biopesticide, glucose syrup and biopesticide + glucose syrup were applied to fresh cola nuts before conditioning and kept at 28˚C for 6 weeks. Physicochemical and sensory analyses were performed to check the quality of the nuts during storage. The results showed that the biopesticide keep cola nuts better than the others methods with only 11.66% ± 3.04% and 13.66% ± 3.95% of loss rates for white and red cola nuts respectively. Cola nuts treated with bio-pesticide retain significantly their freshness with 62.00% ± 1.15% of moisture for white nuts and 64.00% ± 2.00% of moisture for red nuts compared to those treated with glucose syrup and bio-pesticide + glucose syrup (56.66% ± 1.15%). Cola nuts treated with biopesticide have a better acceptability compared to those subjected to others treatments. The use of biopesticide for the storage of cola nuts minimizes the losses and maintains the quality whatever the type of cola.
Aims:The conservation of fresh kola nuts produced in Côte d'Ivoire and intended for the export, poses a veritable problem for the farmers. This study aimed to evaluate the ability of biopesticide TopBio and three types of packaging to preserve kola nut.
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