Agroecology and Sustainable Food Systems最新文献

{"title":"Modern non-thermal method of processing plant raw materials used to increase its storability","authors":"N. Posokina, A. Zakharova","doi":"10.21323/2618-9771-2023-6-1-4-10","DOIUrl":"https://doi.org/10.21323/2618-9771-2023-6-1-4-10","url":null,"abstract":"Along with thermal methods of processing plant raw materials, non-thermal processing methods have been actively developed in recent decades, which make it possible to preserve the qualitative characteristics of the initial raw materials to the maximum and increase the shelf life of the finished product. When using these methods, slight heating of the product can occur, for example, as in the processing by ultraviolet radiation (UVR). In the case of using such a type of processing as filtration, heating is completely absent; under the conditions of high pressure processing of the product (hereinafter HPP), a low temperature regime is observed. These methods are distinguished by minimizing the impact on the organoleptic characteristics of the finished product (texture, appearance, color, odor), as well as the preservation of micro- and macronutrients. The article discusses the main non-thermal methods of processing plant materials: high pressure (HPP), processing in a pulsed electric field (PEF), radioactive radiation, ultraviolet radiation (UVR), filtration. The advantages and factors hindering their widespread use on an industrial scale are noted. It is noted that high pressure, ultraviolet radiation and filtration to one degree or another are widely used in food production, while processing in a pulsed electric field and radioactive radiation are of extremely limited use due to the need to ensure the safety of processing for service  personnel. It should also be noted that processing only by non-thermal methods leads to a limited shelf life of finished products and often requires lower storage temperatures. If it is necessary to increase the shelf life, it makes sense to combine thermal and non-thermal processing methods, for example, microfiltration (ultrafiltration) of juice, bottling into consumer packaging, gentle pasteurization. The undoubted advantage of this combination can be a reduction in the thermal load on a product, since the initial microbiological contamination is reduced by filtration. And, as a result, we get a stably stored product with minimal quality loss and preserved native potential.","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"1 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84353615","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Modern biodegradable materials with accelerated degradation for dairy and food products (subject review)","authors":"D. Myalenko","doi":"10.21323/2618-9771-2023-6-1-11-21","DOIUrl":"https://doi.org/10.21323/2618-9771-2023-6-1-11-21","url":null,"abstract":"Products of the polymer industry, the lion's share of which is food packaging, create a significant threat to the en­vironment, which requires a search for the most effective and functional solutions to this problem. Every year, the production of polymer packaging is growing by an average of 10-12%, and last year, due to the worldwide spread of SARS-CoV-2 (COVID-19) and its strains, the increase was more than 20%. A solution to the environmental problem is possible using the main basic approaches: disposal and recycling of waste, which will give the pos­sibility of the “second life” to already used polymers; development and creation of new biodegradable materials capable of degrading completely under the influence of external factors into relatively safer substances. However, it should be noted that the first method has a number of significant drawbacks associated with the difficulty in controlling the amount of recycling processes carried out, which can potentially lead to an increase in migration processes from polymeric materials. The second way to solve the environmental problem of packaging disposal and recycling is the direction associated with the creation of polymeric materials with the replacement of part of the traditional commercial synthetic bases with organic and inorganic fillers in various concentrations. However, the most promising way to handle packaging waste, in our opinion, is the development of technologies aimed at creating fully biodegradable materials with a regulated service life, which, after their life cycle, are disposed of in a short time without harming the environment. This review is devoted to the analysis of the market of modern biodegradable materials and methods for obtaining degradable compositions that can become a significant alternative to traditional plastics.","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"131 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87864799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Avocado fruit sorting by hyperspectral images","authors":"D. A. Metlenkin, R. A. Platova, Y. Platov, O. V. Fedoseenko, O. V. Sadkova","doi":"10.21323/2618-9771-2023-6-1-46-52","DOIUrl":"https://doi.org/10.21323/2618-9771-2023-6-1-46-52","url":null,"abstract":"The paper shows the use of the methods of hyperspectral imaging (HSI) in a range of 400–1000 nm and multivariate analysis for sorting Hass avocado fruits. The decomposition of the data matrix of HSIs of avocado fruits was carried out using the principle component analysis. The reflection bands in the visible and near-infrared spectral regions interrelated with the process of maturation and the moisture content of avocado fruits were revealed. It has been established that visualization upon avocado inline sorting by moisture is possible when using factor loadings as pseudo-color. Calibration models for determination of moisture and dry matter of avocado fruits were built based on the data of moisture measurement and hyperspectral images. The matrix of spectral data was formed by two methods: random selection of spectral signatures of HSIs from the whole surface of fruits or the image surface of HSIs of fruits (initial HSIs) as a region of interest (ROI). Based on the data of moisture measurement and selection of spectral signatures of hyperspectral images, calibration models were built for detection of moisture and dry matter of avocado fruits. Using sequential simulation by the projection to latent structures (PLS) method, accurate calibration models were developed to detect moisture (RP2 = 0.89) and dry matter (RP2 = 0.92) in the composition of avocado fruits. When building calibration models by the initial HSIs, models were obtained to predict moisture (RС2 = 0.99) and dry matter (RС2 = 0.99) in the composition of avocado fruits. It is proposed to use calibration models by the initial HSIs to determine moisture and dry matter in the intervals of the acceptable values according to the acting standard UNECE STANDARD FFV-42:2019.","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"1 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72523435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The texture of non-fat yogurt with proteins isolates and concentrates","authors":"I. Gurskiy","doi":"10.21323/2618-9771-2023-6-1-29-35","DOIUrl":"https://doi.org/10.21323/2618-9771-2023-6-1-29-35","url":null,"abstract":"Yogurt is one of the most common fermented milk products. It is consumed directly as food or used for the production of fermented milk desserts and ice cream. The urgent task for yogurt producers is improving product quality due to additionally introduced protein components. In this study, an effect of protein isolates and concentrates on the rheological parameters of yogurt was evaluated. The methods included the determination of dynamic viscosity and texture indices, such as hardness, gumminess, chewiness, springiness, cohesiveness and adhesiveness. The prepared yogurt samples were investigated immediately and after 30 days of storage at a temperature of 4±2°C. The water-holding capacity was evaluated. It has been established that introduction of whey proteins makes it possible to increase the water-holding capacity to 77% and 80%, respectively. The highest value of dynamic viscosity (19.3 and 26.1 Pa·s) was found in the samples with isolate and concentrate of native whey proteins after 5 hours of fermentation. A decrease in dynamic viscosity with the introduction of milk protein isolate, soy protein concentrate and native whey protein isolate was observed after 5 hours of fermentation. Addition of the protein components led to a significant increase in texture indices, except for cohesiveness. The highest cohesiveness value of 0.4 N·s was found in the sample without protein components and in the sample with whey protein concentrate. The indicators of hardness, gumminess, chewiness, springiness and adhesiveness were the highest in the sample with native whey protein isolate.","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"28 1","pages":""},"PeriodicalIF":2.6,"publicationDate":"2023-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85446567","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Regenerative rangeland management farmers in Spain: enthusiastic among a great diversity in farming conditions","authors":"Rubén Serrano-Zulueta, A. del Prado, P. Manzano","doi":"10.1080/21683565.2023.2195359","DOIUrl":"https://doi.org/10.1080/21683565.2023.2195359","url":null,"abstract":"ABSTRACT Regenerative Rangeland Management (RRM) is emerging as one of the most promising approaches to achieving sustainability of animal production at economic, social and environmental levels. The current bottleneck in RRM is a slow adoption rate, as the farmers’ views are still poorly studied and considered. We conducted individual surveys with 33 Spanish RRM farmers that collected multiple variables regarding general characteristics of farms, productive parameters, rangeland management and opinions around perceptions. We performed associative tests in order to detect the most important drivers of economic profitability and personal satisfaction. Among a wide diversity of farms, we found no features or management types associated with higher profitability, but rather a link to the level of intensification and degree of experience. About 93% of the farmers were mostly satisfied with RRM, even though they face difficulties – highlighting bureaucratic ones. To overcome such hurdles, we encourage improving the dialogue between farmers, researchers and institutions. This is the first state-level study on RRM in Spain, and one of the first analyses collecting farmers’ perceptions on this topic. Graphical abstract","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"47 1","pages":"810 - 833"},"PeriodicalIF":2.6,"publicationDate":"2023-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47166267","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Optimization of hatchability and survivability traits of indigenous duck managed under backyard farming system","authors":"Mokidur Rahman, Rafiqul Islam, Md Shahinur Islam Ahmed","doi":"10.1080/21683565.2023.2195367","DOIUrl":"https://doi.org/10.1080/21683565.2023.2195367","url":null,"abstract":"ABSTRACT An extensive field study was made in subtropical hot humid climate of north-east India to identify the most influencing climatic and human-made environmental factors and their effects on hatchability of eggs and survivability of indigenous ducklings hatched through indigenous broody hen (chicken) managed under a backyard farming system. Hatchability and survivability ratio was estimated from 858 batches duck eggs recorded from 220 marginal/landless duck farmers over a period of 24 months. Statistical analysis by fitting fixed effect general linear models revealed that the ambient temperature and relative humidity were the most critical climatic factors that affect the hatchability ratio of duck eggs and survivability ratio of ducklings. Besides, the human-made factor was also found to be associated with variations of the hatchability and survivability performances of duck under broody hen incubation. Thus identification of these factors and their effects on the studied traits would be helpful to provide appropriate season-based management strategies for economic and sustainable duck production in rural backyard farming systems. The present finding could be a valuable insight for duck farmers not only in north-east India but also in other developing countries with a subtropical hot humid climate with prevailing backyard duck production systems.","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"47 1","pages":"791 - 809"},"PeriodicalIF":2.6,"publicationDate":"2023-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41781174","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Governance in Colombian food retail: a case study","authors":"M. A. Cadavid-Castro, Luz Stella Álvarez-Castaño, Sara Eloísa Del Castillo-Matamoros, J. Monsalve-Alvarez, L. V. Veléz Acosta, Diana P. Giraldo","doi":"10.1080/21683565.2023.2187004","DOIUrl":"https://doi.org/10.1080/21683565.2023.2187004","url":null,"abstract":"ABSTRACT We characterized three food retail models that coexist in Colombia: corporate, traditional, and alternative, and investigated the governance within each model in terms of regulation and transparency through a case study. We established the geographic density of the three models and found that in Colombia, the corporate model is widespread; the traditional model has low concentration, but a high presence; and the alternative model has a growing albeit low presence. Through our case study we found that these models have different behaviors in their core production, distribution activities, and forms of governance. Even though private regulation prevails in the corporate and traditional models, the traditional model contains specific characteristics of public regulation, while the alternative model is grounded on social regulation.","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"47 1","pages":"890 - 915"},"PeriodicalIF":2.6,"publicationDate":"2023-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49058477","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Are we forgetting native seeds?","authors":"Charles Francis","doi":"10.1080/21683565.2023.2183302","DOIUrl":"https://doi.org/10.1080/21683565.2023.2183302","url":null,"abstract":"","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"47 1","pages":"771 - 774"},"PeriodicalIF":2.6,"publicationDate":"2023-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42807882","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Scaling agroecology for food system transformation in metropolitan areas: Agroecological characterization and role of knowledge in community-supported agriculture farms connected to a food hub in Berlin, Germany","authors":"J. Vicente-Vicente, Julius Borderieux, Katrina Martens, Manuel González-Rosado, Beatrice Walthall","doi":"10.1080/21683565.2023.2187003","DOIUrl":"https://doi.org/10.1080/21683565.2023.2187003","url":null,"abstract":"ABSTRACT We investigated an already existing agri-food network connecting ten regional community-supported agriculture farms with a food hub in the city of Berlin. The overall aim of the study was to conduct an agroecological characterization of the farms by using the Agroecology Criteria Tool and focusing on the role of knowledge (co-)creation and sharing. We conducted walking interviews with ten farmers and applied participatory research techniques. We found that, first, the farmers either have already transformed the farm into an advanced agroecological model (level 3) or are transitioning from organic to agroecological (level 2–3). Second, the interactions between the farms and regional agri-food system actors foster the reconnection between eaters and regional growers (level 4). The actors of this transformation belong, thus, to grassroots self-organized and solidarity-based initiatives, which have built an agroecology-based regional agri-food network. And third, the diversity of activities and formats identified for engaging a broad range of stakeholders provides resources for redefining power relationships and co-creating knowledge. However, there are important barriers that must be addressed to scale this network, such as the lack of structures, platforms and collaborations fostering the knowledge (co-)creation and sharing, access to affordable and secure land, and the lack of governmental support. GRAPHICAL ABSTRACT","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"47 1","pages":"857 - 889"},"PeriodicalIF":2.6,"publicationDate":"2023-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45855280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The ‘inner’ dimension of Dutch farmers’ trajectories of change: drivers, triggers and turning points for sustained agroecological practices","authors":"Eliane Bakker, J. Hassink, Kees van Veluw","doi":"10.1080/21683565.2023.2180563","DOIUrl":"https://doi.org/10.1080/21683565.2023.2180563","url":null,"abstract":"ABSTRACT Transformation to sustainable agriculture in the Netherlands is increasingly called for. Agroecology is acknowledged as a sustainable – potentially transformative – alternative for conventional methods of agriculture. However, few farmers adopt agroecological practices. Recent literature suggests failure to achieve sustained and transformational change may be due to neglectance of personal, nonmaterial aspects of such processes, also referred to as “inner” dimensions of sustainability. Aiming for empirical underpinning, individual transition pathways of nine agroecological farmers were explored, and processes of change were analyzed using a conceptual framework of “zones of friction and traction” across three interconnected and embedded spheres of transformation: the personal, the practical and the political. The chosen framework allows for seeing the role of the personal aspects of transformation, without losing sight of pressures and influences from the “outside.” Identification of zones of friction and traction revealed where and why transformation was happening, as well as the drivers behind farmers’ choice and passion for agroecology. We argue that focus on the “inner” dimension or personal sphere is foundational to sustained transformational change in the practical and political spheres, i.e. the outside world. The presented findings have implications for strategies targeting envisioned transition toward a sustainable food system.","PeriodicalId":48958,"journal":{"name":"Agroecology and Sustainable Food Systems","volume":"47 1","pages":"687 - 717"},"PeriodicalIF":2.6,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45372491","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}