Only 42% of Uganda’s population has access to electricity. The population continues to use firewood and charcoal as a source of energy, which leads to depletion of forests thus to climate change. The purpose of this ...Only 42% of Uganda’s population has access to electricity. The population continues to use firewood and charcoal as a source of energy, which leads to depletion of forests thus to climate change. The purpose of this study was to assess the potential of biogas production from jackfruit waste, banana peels, and pineapple peels when co-digested with cow dung as an alternative energy source. Substrates for each waste were co-digested with varying proportions (0%, 25%, and 50%) of cow dung using laboratory-scale 250 mL anaerobic digestors. The total biogas generation for jackfruit waste, banana peels, and pineapple peels after 30 days of anaerobic digestion was 82.3, 189, and 262 mL, respectively. When jack fruit waste, pineapple peels and banana peels were co-digested with 25% cow dung, the total amount of biogas produced increased by a factor of two and three, respectively. However, 50% of cow dung only significantly (p ≤ 0.05) improved for jack fruit waste by two folds. Therefore, the results indicated that jackfruit waste, banana and pineapple peels can be used for biogas production to augment energy supply. .展开更多
Tomato production systems in developing countries are characterized by high post harvest losses. Due to the perishability of tomatoes, lack of awareness and knowledge of postharvest handling techniques, and poor packa...Tomato production systems in developing countries are characterized by high post harvest losses. Due to the perishability of tomatoes, lack of awareness and knowledge of postharvest handling techniques, and poor packaging, farmers encounter 20% - 50% postharvest losses. Farmers use traditional baskets, wooden, and plastic crates as packaging materials during transportation of tomatoes. However, tomatoes are often damaged due to the size and inner rough surface of crates and the difficulty in handling. The need for fresh tomato at the consumer requires a packaging that protects tomatoes against physical damages, increasing its shelf life prior to consumption. Packaging is important in ensuring quality, easing handling, extending the shelf life during storage and transportation of food products. However, the conventional use of synthetic-based materials for advanced packaging contributes to environmental problems because of their non-biodegradability and health concerns. This review article highlights the different materials used for packaging tomato and the prospects of using papaya, as a precursor for developing tomato packages.展开更多
文摘Only 42% of Uganda’s population has access to electricity. The population continues to use firewood and charcoal as a source of energy, which leads to depletion of forests thus to climate change. The purpose of this study was to assess the potential of biogas production from jackfruit waste, banana peels, and pineapple peels when co-digested with cow dung as an alternative energy source. Substrates for each waste were co-digested with varying proportions (0%, 25%, and 50%) of cow dung using laboratory-scale 250 mL anaerobic digestors. The total biogas generation for jackfruit waste, banana peels, and pineapple peels after 30 days of anaerobic digestion was 82.3, 189, and 262 mL, respectively. When jack fruit waste, pineapple peels and banana peels were co-digested with 25% cow dung, the total amount of biogas produced increased by a factor of two and three, respectively. However, 50% of cow dung only significantly (p ≤ 0.05) improved for jack fruit waste by two folds. Therefore, the results indicated that jackfruit waste, banana and pineapple peels can be used for biogas production to augment energy supply. .
文摘Tomato production systems in developing countries are characterized by high post harvest losses. Due to the perishability of tomatoes, lack of awareness and knowledge of postharvest handling techniques, and poor packaging, farmers encounter 20% - 50% postharvest losses. Farmers use traditional baskets, wooden, and plastic crates as packaging materials during transportation of tomatoes. However, tomatoes are often damaged due to the size and inner rough surface of crates and the difficulty in handling. The need for fresh tomato at the consumer requires a packaging that protects tomatoes against physical damages, increasing its shelf life prior to consumption. Packaging is important in ensuring quality, easing handling, extending the shelf life during storage and transportation of food products. However, the conventional use of synthetic-based materials for advanced packaging contributes to environmental problems because of their non-biodegradability and health concerns. This review article highlights the different materials used for packaging tomato and the prospects of using papaya, as a precursor for developing tomato packages.
