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Life cycle analysis of organic tomato production and supply in Sweden

Bosona, Techane and Gebresenbet, Girma (2018) Life cycle analysis of organic tomato production and supply in Sweden. Journal of Cleaner Production, 196, pp. 635-643.

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Online at: https://www.sciencedirect.com/science/article/pii/S0959652618317372

Summary

Improving sustainability of organic tomato value chains requires increase of production and reduction of losses and related environmental burden. This paper presents the study conducted on organic tomato produced and consumed in Sweden. Using life cycle analysis (LCA) method with SimaPro8.2 LCA software, the cumulative energy demand (CED) and global warming potential (GWP100) were investigated within the system boundary of cradle-to-consumer gate. The system was modeled as fresh tomato value chain (FTVC) and dried tomato value chain (DTVC). The functional unit (FU) was 1 ton of fresh product at farm that will be delivered to customer either as fresh or dried tomato. Sensitivity analysis was done considering changes in drying energy consumption. The results indicated that calculated CED values were 44.58 GJ and 49.40 GJ per functional unit for FTVC and DTVC respectively. Similarly, GWP100 values were 547.13 kg CO2 eq and 467.44 kg CO2 eq for FTVC and DTVC respectively. Agricultural production has been identified as hot-spot stage in both FTVC and DTVC cases. Next to agricultural stage, post-harvest and transport stages have been hot-spot stages for energy demand and climate impact respectively. Energy for greenhouse heating and irrigation as well as material for greenhouse construction contributed to the high impact of tomato cultivation stage. Packaging and drying activities at post-harvest stage and fuel consumption at transport stage contributed more to environmental burden. The drying process increased the energy demand while it reduced climate change impact. The drying process also could reduce the product losses and increase the product shelf life. This could improve the sustainability of locally produced organic tomato value chains, especially if integrated with renewable energy sources.


EPrint Type:Journal paper
Keywords:Life cycle analysis, Organic tomato value chain, Tomato drying, Sweden, SusOrganic, Core Organic Plus
Subjects: Food systems > Processing, packaging and transportation
Food systems > Markets and trade
Food systems > Produce chain management
Research affiliation: European Union > CORE Organic Plus > SusOrganic
Sweden > University of Uppsala
H2020 or FP7 Grant Agreement Number:618107
ISSN:0959-6526
DOI:doi.org/10.1016/j.jclepro.2018.06.087
Related Links:http://projects.au.dk/coreorganicplus/research-projects/susorganic/
Deposited By: Von Gersdorff, Gardis J.E.
ID Code:33949
Deposited On:17 Oct 2018 08:40
Last Modified:17 Oct 2018 08:40
Document Language:English
Status:Published
Refereed:Peer-reviewed and accepted

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