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 o...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.展开更多
The availability of on-farm storage and processing is a critical challenge facing small farmers,which hinders agricultural productivity.Thirty per cent of the food produced globally is lost after harvest,with the prop...The availability of on-farm storage and processing is a critical challenge facing small farmers,which hinders agricultural productivity.Thirty per cent of the food produced globally is lost after harvest,with the proportion being exceptionally high in low-and middle-income countries due to a lack of on-farm handling and storage facilities.Conventional cold-storage solutions have not taken off at the smallholder level,mainly due to a lack of availability and access to reliable grid electricity.Therefore,off-grid decentralized solar-powered cold-storage units can play a vital role in preserving the produce at production sites and enhancing livelihood and rural development with a minimal carbon footprint.To maintain low temperatures at every step of the agricultural value chain,known as the‘cold chain’,several technology vendors aim to improve the shelf life and user benefit.Small-scale farmers,which account for two-thirds of all food losses,are another group they focus on.This study examines the existing situation,importance and potential opportunities of decentralized cold-storage systems for fresh fruit and vegetables.In addition to economic,social,technological and environmental limitations,this study examines the triumphs and challenges of incorporating solar-energy-powered cold storage into developing communities.Although the private sector,NGOs and some government agencies are working to promote decentralized cold-storage facilities,relatively little has been done so far to have a significant influence on post-harvest losses and food security.There are still knowledge gaps on decentralized cold-storage facilities.The primary operational constraint is the economic situation of end users and the lack of financing alternatives for smallholder farmers.展开更多
The study assess post-harvest fish losses among three(3)dominant marine fish species along coastal areas of Ondo State,Nigeria.Simple random sampling was used to select 100 fishermen from 5 viable fishing communities ...The study assess post-harvest fish losses among three(3)dominant marine fish species along coastal areas of Ondo State,Nigeria.Simple random sampling was used to select 100 fishermen from 5 viable fishing communities along coastal areas of Ondo State while questionnaire was used for data collection.Descriptive statistics shows that small-scale fishing is dominated by males with mean age of 39 years.The fishermen incurred average post-harvest fish losses of 8.15%for croaker,7.76%for catfish and 7.57%for shrimp respectively.Causes of post-harvest fish losses in the study area includes lengthy duration of fishing cycle,poor handling practices,lack of covering facilities,failure to use ice,lack of storage facilities and lack of good means of transportation.Regression model revealed a statistical significant relationship(P<0.05)with age,educational level,fishing experience,duration of fishing cycle,storage and transportation facilities against percentage fish losses(Croaker:Pseudotolithus elongatus,Catfish:Arius heudeloti and Shrimp:Nematopalaemon hastatus).In order to ensure food security,post-harvest fish losses needs to be reduced to the barest minimum.Government should provide adequate infrastructural facilities to the small-scale fisheries sector in order to improve their standard of living and increase their income level.展开更多
文摘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.
基金This work was conducted as a part of research project(project no.AE-027)funded by Pakistan Agricultural Research Council(PARC)executed by the Department of Energy Systems Engineering,University of Agriculture Faisalabad,Pakistan.
文摘The availability of on-farm storage and processing is a critical challenge facing small farmers,which hinders agricultural productivity.Thirty per cent of the food produced globally is lost after harvest,with the proportion being exceptionally high in low-and middle-income countries due to a lack of on-farm handling and storage facilities.Conventional cold-storage solutions have not taken off at the smallholder level,mainly due to a lack of availability and access to reliable grid electricity.Therefore,off-grid decentralized solar-powered cold-storage units can play a vital role in preserving the produce at production sites and enhancing livelihood and rural development with a minimal carbon footprint.To maintain low temperatures at every step of the agricultural value chain,known as the‘cold chain’,several technology vendors aim to improve the shelf life and user benefit.Small-scale farmers,which account for two-thirds of all food losses,are another group they focus on.This study examines the existing situation,importance and potential opportunities of decentralized cold-storage systems for fresh fruit and vegetables.In addition to economic,social,technological and environmental limitations,this study examines the triumphs and challenges of incorporating solar-energy-powered cold storage into developing communities.Although the private sector,NGOs and some government agencies are working to promote decentralized cold-storage facilities,relatively little has been done so far to have a significant influence on post-harvest losses and food security.There are still knowledge gaps on decentralized cold-storage facilities.The primary operational constraint is the economic situation of end users and the lack of financing alternatives for smallholder farmers.
文摘The study assess post-harvest fish losses among three(3)dominant marine fish species along coastal areas of Ondo State,Nigeria.Simple random sampling was used to select 100 fishermen from 5 viable fishing communities along coastal areas of Ondo State while questionnaire was used for data collection.Descriptive statistics shows that small-scale fishing is dominated by males with mean age of 39 years.The fishermen incurred average post-harvest fish losses of 8.15%for croaker,7.76%for catfish and 7.57%for shrimp respectively.Causes of post-harvest fish losses in the study area includes lengthy duration of fishing cycle,poor handling practices,lack of covering facilities,failure to use ice,lack of storage facilities and lack of good means of transportation.Regression model revealed a statistical significant relationship(P<0.05)with age,educational level,fishing experience,duration of fishing cycle,storage and transportation facilities against percentage fish losses(Croaker:Pseudotolithus elongatus,Catfish:Arius heudeloti and Shrimp:Nematopalaemon hastatus).In order to ensure food security,post-harvest fish losses needs to be reduced to the barest minimum.Government should provide adequate infrastructural facilities to the small-scale fisheries sector in order to improve their standard of living and increase their income level.
