Identifying potential applications for residual biomass from urban agriculture through eco-ideation: Tomato stems from rooftop greenhouses

Manríquez-Altamirano, Ana; Sierra-Pérez, Jorge; Muñoz, Pere; Gabarrell, Xavier

doi:10.1016/j.jclepro.2021.126360

Cited by 13 publications

(7 citation statements)

References 47 publications

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“…In this study, our raw material (T1000) is 20% w / w , which is slightly less. In contrast, the hemicellulose content reported is about 4 to 11% [ 30 , 31 ], whereas we obtained about 18% (sum of the non-glycosidic monosaccharides), which is slightly more.…”

Section: Resultscontrasting

confidence: 80%

“…A significant lignin concentration, such as this one, is generally interesting in terms of milling efficiency [ 29 ]. The literature reports concentrations between 5 and 14% for lignin according to the lot materials [ 30 ], whereas another study on post-harvest tomato plant stems [ 31 ] found less lignin content, at around 8%. In this study, we have obtained results in the same range, as the samples have about 14% lignin content for the less-refined particle sizes, which corresponds to the raw material.…”

Section: Resultsmentioning

confidence: 99%

“…If we refer to the recent literature data regarding tomato plant by-product polysaccharides, interestingly, the cellulose content reported is about 30 to 40% [ 30 , 31 ]. In this study, our raw material (T1000) is 20% w / w , which is slightly less.…”

Section: Resultsmentioning

confidence: 99%

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A Circular Approach for the Valorization of Tomato By-Product in Biodegradable Injected Materials for Horticulture Sector

et al. 2023

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This study focuses on the use of tomato (Solanum lycopersicum L.) by-product biomass from industrial plants as reinforcement for designing a range of new degradable and biobased thermoplastic materials. As a novel technique, this fully circular approach enables a promising up-cycling of tomato wastes. After an in-depth morphological study of the degree of reinforcement through SEM and dynamic analysis, mechanical characterization was carried out. Our mechanical results demonstrate that this circular approach is of interest for composite applications. Despite their moderate aspect ratio values (between 1.5 and 2), the tomato by-product-reinforced materials can mechanically compete with existing formulations; PBS-Tomato fiber, for example, exhibits mechanical performance very close to that of PP-flax, especially regarding strength (+11%) and elongation at break (+6%). According to the matrix and particle morphology, a large range of products—biobased and/or degradable, depending on the targeted application—can be designed from tomato cultivation by-products.

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Section: Resultscontrasting

confidence: 80%

Section: Resultsmentioning

confidence: 99%

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A Circular Approach for the Valorization of Tomato By-Product in Biodegradable Injected Materials for Horticulture Sector

et al. 2023

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“…The light blue and orange clusters are the smallest, with four and three authors, respectively. The light blue one is represented by Xavier Gabarrell i Durany and has the participation of Pere Muñoz, Ana Manríquez-Altamirano, and Jorge Sierra-Pérez [61,62]. The orange one, made up of Wenhao Chen, Nicholas M. Holden, and Thomas L. Oldfield, recorded three joint investigations, namely one from 2019 and two from 2020 [63][64][65].…”

Section: Most Prolific Authorsmentioning

confidence: 99%

An Evolutionary Approach on the Framework of Circular Economy Applied to Agriculture

et al. 2022

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In this current and global context led by scarcity of resources, environmental degradation, global climate change, and a progressive demand for food, the circular economy (CE) represents a key economic model or framework for sustainable, restorative, and regenerative agriculture. Hence, CE applied to agriculture seeks to close the life cycle of products, services, waste, water, and energy to obtain a better use of resources and a reduction of the ecological impact. An initial review of the literature corroborates the hypothesis that the CE framework has not yet been comprehensively adapted to the field of agriculture. This research seeks to overcome this gap in relation to the performance of the circularity of agricultural production systems in support of decision-making processes. A bibliometric analysis of 1060 documents was carried to synthesize the knowledge base on this topic. The results show recent studies that identify weaknesses derived from food production, such as waste generation, biomass, water pollution, and greenhouse gas emissions. It has been identified how their analysis has developed to date and what terms allow us to visualize new approaches; consequently, it is a useful tool for researchers and sponsors who provide financial resources for the development of new lines of research.

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“…Even if circularity strategies vary substantially, the most common de initions encompass activities focused on the 3R principle-reducing waste, and reusing and recycling resources (Kirchherr et al, 2017;Reike et al, 2018). This principle focuses on input minimisation and ef icient use of regenerative resources; life cycle extension and systems reconceptualisation (repair, re-conditioning, and re-manufacturing options); and output/waste reduction and valorisation, namely by recycling and valuing by-products and waste (de Jesus et al, 2018;Kirchherr et al, 2017;Manríquez-Altamirano et al, 2021). The 3R priorities are accepted in academia and in circular economy practices, and they have been employed in Chinese and European policy as well as in the discourse of the European Union (EU), United Nations (UN), and Organisation for Economic Co-operation and Development (OECD).…”

Section: Urban Agriculture In a Circular Economymentioning

confidence: 99%

SiEUGreen White Paper with best practices

Aguiar Borges,

de Jesus

2024

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This report explores the potential of Urban Agriculture (UA) to enhance food security, improve resource efficiency, and promote smart, resilient, and circular cities. The discussion is framed within the scope of the Horizon 2020 project ‘Sino-European Innovative Green and Smart Cities’ (SiEUGreen) which explored different pathways to turn waste into resources for growing food in cities through the combination of different technologies. These technologies were tested in five showcases: Campus Ås, in Ås, Norway; World Gardens and Brabrand Fællesgartneriet community gardens in Aarhus, Denmark; Turunçlu greenhouse in Atakya, Turkey; Sanyuan Farm, in Beijing, and Futiancangjun residential area in Changsha, China. The insights and knowledge gained with these showcases were the basis to discuss the barriers and drivers of UA in the transition to more sustainable and resilient circular cities, across five aspects (1) environmental, (2) technological, (3) economic, (4) social and cultural and (5) regulatory and institutional issues. The results suggest that city food provision and UA systems can be designed considering circular economy regenerative cycles, but it is important to promote local research that can highlight policy solutions to address context-related barriers and limitations. Among the main lessons learned across the different aspects, we highlight: - The need for more evidence-based research, clear monitoring tools and evaluation/assessment of the different UA typologies and their impact on the environment, society and economy; - The implementation of innovative technological developments that support and promote UA for reduce; reuse, recycle/recover resources require more experimentation, large-scale tests and validation both concerning their efficiency, positive environmental impacts, as well as economic viability; - The need for high investments, difficulties accessing financial support, underdeveloped business case for circular resource models, and limited recognition of the positive and indirect economic, environmental benefits of UA are among the main barriers that limit the uptake of agriculture in cities; - Despite the significant role UA can play in advancing a circular economy (e.g., by supporting sustainable local food systems, promoting community resilience and reducing waste), behaviour and cultural barriers were found to have a deep impact when fostering a closed-loop approach to UA, especially concerning overcoming prejudice against waste as a resource, - Local governance and public policy play a central role in framing and supporting UA (e.g., incentives, funding, regulatory frameworks) as a pathway that enables close loops in cities.

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Identifying potential applications for residual biomass from urban agriculture through eco-ideation: Tomato stems from rooftop greenhouses

Cited by 13 publications

References 47 publications

A Circular Approach for the Valorization of Tomato By-Product in Biodegradable Injected Materials for Horticulture Sector

A Circular Approach for the Valorization of Tomato By-Product in Biodegradable Injected Materials for Horticulture Sector

An Evolutionary Approach on the Framework of Circular Economy Applied to Agriculture

SiEUGreen White Paper with best practices

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