| 1. |
- Hellwig, Coralie, et al.
(författare)
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Household fermentation of leftover bread to nutritious food
- 2022
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Ingår i: Waste Management. - : Elsevier BV. - 0956-053X .- 1879-2456. ; 150, s. 39-47
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Tidskriftsartikel (refereegranskat)abstract
- Resource dependency of food production is aggravated when food is wasted. In Sweden, it is estimated that 37% of the total bread waste is generated at the household level. This work aimed to assess whether fermentation using edible filamentous fungi at households can provide a solution to valorize leftover bread in the production of fungi-based food for consumption. Bread was fermented in household and laboratory conditions with Neurospora intermedia and Rhizopus oligosporus. The results show that bread can be successfully and easily fermented at households, without signs of microbial contamination even though the conditions were not sterile. Fermentation at the household resulted in higher protein, fat and fiber content as well as greater starch reduction compared to the samples fermented under laboratory conditions. Household engagement in bread fermentation will likely depend on values that motivate reusing leftover bread. Perceived values that are expected to motivate engagement vary across individuals, but may include improved nutritional benefits, food waste prevention, convenience, responsibilities, and being part of sustainable societies and actions. © 2022 The Author(s)
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| 2. |
- Rousta, Neda, et al.
(författare)
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Filamentous Fungus Aspergillus oryzae for Food : From Submerged Cultivation to Fungal Burgers and Their Sensory Evaluation – A Pilot Study
- 2021
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Ingår i: Foods. - : MDPI AG. - 2304-8158. ; 10:11
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Tidskriftsartikel (refereegranskat)abstract
- New food sources are explored to provide food security in sustainable ways. The submerged fermentation of edible filamentous fungi is a promising strategy to provide nutritious and affordable food that is expected to have a low environmental impact. The aim of the current study was to assess the novel use of Aspergillus oryzae cultivated in submerged fermentation on oat flour as a source for food products that do not undergo secondary fermentation or significant downstream processing. The fungus was cultivated in a pilot-scale airlift bioreactor, and the biomass concentration and protein content of the biomass were assessed. A tasting with an untrained panel assessed consumer preferences regarding the taste and texture of minimally processed vegetarian and vegan burger patties made from the biomass, and how the patties fared against established meat-alternative-based patties. The cultivation of Aspergillus oryzae resulted in a yield of 6 g/L dry biomass with a protein content of 37% on a dry weight basis. The taste and texture of the minimally processed fungal burger patties were to the liking of some participants. This was also reflected in diverse feedback provided by the participants. The cultivation of the fungus on oat flour and its utilization in developing burger patties shows its promising potential for the production of nutritious food. The applications of the fungus can be further developed by exploring other favorable ways to texture and season this relatively new functional food source to the preferences of consumers.
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| 3. |
- Brancoli, Pedro, 1989-, et al.
(författare)
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Compositional Analysis of Street Market Food Waste in Brazil
- 2022
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Ingår i: Sustainability. - : MDPI. - 2071-1050. ; 14:12
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Tidskriftsartikel (refereegranskat)abstract
- Current understanding of food waste quantities in the Brazilian retail sector is limited. In order to develop efficient measures for food waste prevention and valorisation, reliable data on waste generation and composition are necessary. In this study, a compositional analysis of street market waste was conducted in São Paulo, Brazil. In total, 4.1 tonnes of waste were sorted into 27 waste fractions, categorised using a three-level approach. The average waste generation in the studied street markets was 23.7 kg per stall, of which 12.8 kg was classified as unavoidable food waste, 3.6 kg as packaging waste, and 7.4 kg as avoidable waste. The results show large amounts of unavoidable food waste, comprised of coconut, sugarcane bagasse, and peels. A large share of the avoidable food waste is comprised of single leaves, tomatoes, oranges, and bananas. Large variations were observed among the street markets analysed, both in terms of the food waste generation rate, and composition. The results from scaling up the data at the city level indicated a total wastage of 59,300 tonnes per year, of which 18,400 tonnes are classified as avoidable food waste.
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| 4. |
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| 6. |
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| 7. |
- Brancoli, Pedro, 1989-, et al.
(författare)
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Life cycle assessment of supermarket food waste
- 2017
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Ingår i: Resources, Conservation and Recycling. - : Elsevier BV. - 0921-3449 .- 1879-0658. ; 118, s. 39-46
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Tidskriftsartikel (refereegranskat)abstract
- Retail is an important actor regarding waste throughout the entire food supply chain. Although it produces lower amounts of waste compared to other steps in the food value chain, such as households and agriculture, it has a significant influence on the supply chain, including both suppliers in the upstream processes and consumers in the downstream. The research presented in this contribution analyses the impacts of food waste at a supermarket in Sweden. In addition to shedding light on which waste fractions have the largest environmental impacts and what part of the waste life cycle is responsible for the majority of the impacts, the results provide information to support development of strategies and actions to reduce of the supermarket's environmental footprint. Therefore, the food waste was categorised and quantified over the period of one year, the environmental impacts of waste that were generated regularly and in large amounts were assessed, and alternative waste management practices were suggested. The research revealed the importance of not only measuring the food waste in terms of mass, but also in terms of environmental impacts and economic costs. The results show that meat and bread waste contributes the most to the environmental footprint of the supermarket. Since bread is a large fraction of the food waste for many Swedish supermarkets, this is a key item for actions aimed at reducing the environmental footprint of supermarkets. Separation of waste packaging from its food content at the source and the use of bread as animal feed were investigated as alternative waste treatment routes and the results show that both have the potential to lead to a reduction in the carbon footprint of the supermarket.
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| 8. |
- Hellwig, Coralie, et al.
(författare)
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Aspects Affecting Food Choice in Daily Life as Well as Drivers and Barriers to Engagement with Fungi-Based Food-A Qualitative Perspective
- 2023
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Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 15:1
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Tidskriftsartikel (refereegranskat)abstract
- Fungi-based food is expected to contribute to more sustainable food systems. The present study has three focus areas: (i) aspects that affect food choices food in daily life, (ii) aspects that affect choices of fungi-based food in particular, and (iii) drivers that motivate, and barriers that prevent, engagement in cultivating fungi and cooking fungi-based food at home. One hundred and sixty participants, who were recruited using convenience sampling, filled out qualitative questionnaires. The results show that there are numerous aspects (e.g., environmental benefits, nutrition, sensory characteristics, production practices and ingredients) that are important when people choose food in daily life. In addition to curiosity, many of these aspects also affect the choice of fungi-based food. The study identified more drivers (e.g., self-providing, curiosity, awareness of ingredients) than barriers (time, knowledge, concerns about contamination) to cultivation and cooking of fungi-based food at home. The findings are relevant for the development of fungi-based food so that this type of food is engaged with, and so that it can contribute to more sustainable food systems.
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| 9. |
- Hellwig, Coralie, et al.
(författare)
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Aspects that Affect Tasting Studies of Emerging Food : A Review
- 2022
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Ingår i: Future Foods. - : Elsevier BV. - 2666-8335. ; 5
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Forskningsöversikt (refereegranskat)abstract
- Providing food security to the growing global population, and the resource depletion associated with current food systems, let to calls for more sustainable food sources. Food that can be produced in a sustainable way (taking all three aspects of sustainable development into consideration) is currently emerging in Western societies. Through tastings, insight can be gathered not only into sensory characteristics but also other aspects that aid innovation and development of food. The current study identified aspects that can affect tastings of emerging food by reviewing relevant literature. General aspects; meat alternatives; ingredients or processing technologies; information, prior knowledge and (un)familiarity; taste and liking; emotional factors; and willingness to engage with emerging food can affect tastings of emerging food. Awareness of the effect that these aspects can have on methodological considerations and results can be constructive in future research that use tastings as a platform to develop new and emerging food. The findings are significant for food science in terms of cornerstones towards potential industrial applications. These include innovating new types of food, assessing most effective technologies in the context of such food, developing new products, and understanding engagement with emerging food products.
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| 10. |
- Hellwig, Coralie
(författare)
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Engagement with Fungi-Based Food : Recovery and Valorization of Resources for Food
- 2023
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Doktorsavhandling (övrigt vetenskapligt/konstnärligt)abstract
- There has been an increasing demand for more sustainable food and ways of encouraging individuals to lead more sustainable lives. This thesis seeks to contribute to understanding human engagement with fungi-based food in a multidisciplinary manner by complementing resource recovery with an occupational perspective that sheds light on aspects that encourage or discourage individuals from engaging with this food. This thesis encompasses five papers. The research described in these papers focused on reviewing aspects that affect tasting studies of emerging food; studying how a valorized bread-based fungi burger patty was perceived; investigating aspects that affect food choice in daily life as well as drivers and barriers to engagement with fungi-based food; exploring glocal and ecoethical perceptions of engagement with fungi-based food; and assessing household fermentation of leftover bread to nutritious food. Personal reflections about the consequences of engaging in activities and with resources and products can be expected to constitute an essential part of ecoethics and elicit reasons and motives that encourage engagement. Acting in ways that are based on reasons and motives to engage with fungi-based food is expected to require that the engagement is consistent with an individual's ideals and the belief that one's actions can contribute to achieving goals. The findings show that several motives may affect engagement with fungi-based food, including sustainability, environmental benefits, resource use, personal choices, individual interests, finances, sensory characteristics, social implications, and health. That resources can be valorized when producing fungi-based food as well as that this can contribute to overcoming challenges related to providing nutritious, affordable, and sustainable food to the growing global population, encourage engagement with this food. These findings are promising given the resource depletion of the status quo of food production, the amount of food lost and wasted, and the negative consequences associated with this loss and waste. They can be built on in research and policy efforts that aim to encourage individuals to engage with foods that efficiently use natural resources, lessen the impact of food systems on the planet, and ensure food security and nutrition.
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