Frontiers in Sustainable Food Systems最新文献

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Editorial: Agrochemicals in agricultural and non-agricultural settings: fate, distribution, and potential human and environmental health hazards 社论:农业和非农业环境中的农用化学品:归宿、分布以及对人类和环境健康的潜在危害
Frontiers in Sustainable Food Systems Pub Date : 2024-07-26 DOI: 10.3389/fsufs.2024.1461954
Md Meftaul Islam, M. Megharaj, Muhammad Asaduzzaman, Abinandan Sudharsanam
{"title":"Editorial: Agrochemicals in agricultural and non-agricultural settings: fate, distribution, and potential human and environmental health hazards","authors":"Md Meftaul Islam, M. Megharaj, Muhammad Asaduzzaman, Abinandan Sudharsanam","doi":"10.3389/fsufs.2024.1461954","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1461954","url":null,"abstract":"","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"40 44","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141800091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Fish kills and insecticides: historical water quality patterns in 10 agricultural watersheds in Prince Edward Island, Canada (2002–2022) 鱼类死亡与杀虫剂:加拿大爱德华王子岛 10 个农业流域的历史水质模式(2002-2022 年)
Frontiers in Sustainable Food Systems Pub Date : 2024-07-26 DOI: 10.3389/fsufs.2024.1356579
Miranda Crawford, Alexa C. Alexander
{"title":"Fish kills and insecticides: historical water quality patterns in 10 agricultural watersheds in Prince Edward Island, Canada (2002–2022)","authors":"Miranda Crawford, Alexa C. Alexander","doi":"10.3389/fsufs.2024.1356579","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1356579","url":null,"abstract":"Global pesticide use has resulted in widespread environmental degradation, persistent contamination of surface and ground waters, bioaccumulation of these contaminants in food webs, and unintended impacts on non-target species (e.g., fish kills). Mixtures of multiple pesticides are commonly found in the environment, yet these chemicals are rarely studied in combination. Insecticides are of particular concern as these chemicals are designed to target terrestrial insect pests but also impact aquatic macroinvertebrates. In the following study, we explore the regional context of surface water concentrations of four insecticides in 10 study watersheds over a 20-year period (2002 to 2022) in Prince Edward Island, a region of Canada with continuous agricultural activity since the 1720s. These agroecosystems have been subject to generations of restoration, conservation, and more recently, implementation of various beneficial or best management practices (BMPs). The changing climate significantly adds to the complexity of monitoring these systems as the regional rate of change is exceptionally high (e.g., a 0.70°C to 1.14°C increase in air temperature and 5–8% decrease in precipitation in the last 3 decades). The results of this study highlight that efforts in this area would benefit from a more collaborative, transdisciplinary approach that integrates local, regional, national, and global perspectives while respecting the needs of growers, consumers, and the immense natural capital in the aquatic ecosystems draining these landscapes - such as Atlantic salmon, that can draw both anglers and ecotourists alike. A pivot toward a One-Health Framework is a logical next step for the province as, at present, efforts to integrate observational and monitoring efforts are already conducted by multiple federal, provincial, Indigenous rightsholders, as well as non-government stakeholders. Finally, in recognition that financial resources for these efforts are finite, we would recommend the implementation of a standardized, seasonal water quality sampling scheme that includes flow-weighted sampling and automated samplers to better capture and predict rapidly changing conditions in the region in response to climate change.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"47 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141798983","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analysis of the driving path of e-commerce to high-quality agricultural development in China: empirical evidence from mediating effect models 电子商务对中国农业高质量发展的驱动路径分析:中介效应模型的经验证据
Frontiers in Sustainable Food Systems Pub Date : 2024-07-26 DOI: 10.3389/fsufs.2024.1371254
Yanfang Kong, Xue Zhang, Xiaoxu Li, P. Pastpipatkul, Jianxu Liu, Chuhui Feng
{"title":"Analysis of the driving path of e-commerce to high-quality agricultural development in China: empirical evidence from mediating effect models","authors":"Yanfang Kong, Xue Zhang, Xiaoxu Li, P. Pastpipatkul, Jianxu Liu, Chuhui Feng","doi":"10.3389/fsufs.2024.1371254","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1371254","url":null,"abstract":"This study investigates the impact of e-commerce on high-quality agricultural development (HQAD) in China. As the agricultural sector transitions towards higher quality production in the digital era, understanding the influence pathways and mechanisms of e-commerce becomes crucial. We aim to quantify this influence through a hierarchical approach.Utilizing provincial panel data from 2000 to 2021, we construct a comprehensive HQAD evaluation system using the entropy method. Parallel mediating effect models are employed to empirically assess the multi-level effects of e-commerce on HQAD.Benchmark regression analyzes reveal a significant positive effect of e-commerce on HQAD, indicating its role as a key driver in China’s agricultural advancement. Mechanism tests identify several intermediary pathways through which e-commerce indirectly promotes HQAD, including market expansion, agricultural value chain optimization, enhanced social services, and improved infrastructure. Notably, market expansion and value chain optimization demonstrate the most substantial mediation effects, accounting for 43.27 and 14.18% of the total effect, respectively.This research contributes to the literature by establishing a comprehensive HQAD evaluation framework, providing a theoretical foundation for future studies. By incorporating circulation factors into the production system, we elucidate the complex influence mechanisms of e-commerce on agricultural production, addressing a significant research gap. Furthermore, we propose a novel “demand-driven supply optimization” paradigm, offering valuable insights for policy formulation aimed at fostering HQAD in China.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"43 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141800173","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Bedding material properties and slurry C/N ratio affect the availability of nitrogen in cattle slurry applied to soil 垫料特性和泥浆的碳/氮比对施用到土壤中的牛泥浆中氮的可用性有影响
Frontiers in Sustainable Food Systems Pub Date : 2024-07-26 DOI: 10.3389/fsufs.2024.1393674
Karin Andersson, A. S. Dahlin, Peter Sørensen, Sofia Delin
{"title":"Bedding material properties and slurry C/N ratio affect the availability of nitrogen in cattle slurry applied to soil","authors":"Karin Andersson, A. S. Dahlin, Peter Sørensen, Sofia Delin","doi":"10.3389/fsufs.2024.1393674","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1393674","url":null,"abstract":"Cattle slurry used as fertilizer in crop production is a mix of feces, urine, water, and bedding material from the housing system. Previous studies have shown that slurry nitrogen (N) availability to crops is dependent on C/N ratio. As the bedding material can contribute a significant part of total slurry carbon (C), its characteristics may affect the C/N ratio of the slurry. There is increasing interest in using the solid fraction from mechanical slurry separation as bedding material, and therefore this study investigated the potential effect of this fraction on slurry N availability, compared with more commonly used bedding materials such as straw and sawdust.In two parallel 28-day laboratory incubations, net mineral N release and C mineralization from slurries applied to sandy loam soil were measured. The slurries comprised a liquid fraction (LF) from mechanical cattle slurry separation with a screw-press and different added bedding materials. Liquid fraction was mixed with two types of bedding material, solid slurry fraction (SF) and chopped straw, in different proportions, resulting in C/N ratios of 10, 12, and 14 in the slurry. In additional treatments, two other bedding materials, ground straw and sawdust, with slurry C/N ratio 12, were used.For SF and chopped straw, similar negative linear correlations were seen between slurry C/N ratio and net mineral N release after 28 days. Carbon mineralization, expressed as a percentage of total C added, was higher from the mixture containing SF than that containing straw, while no clear relationship with C/N ratio was found. At slurry C/N ratio 12, net release of mineral N was 28–39% of total N and decreased in the order: sawdust>chopped straw=SF=ground straw. Net C mineralization at the same slurry C/N ratio was 33–46% and decreased in the order: SF=ground straw>chopped straw>sawdust.For bedding materials with similar fiber composition (i.e., SF and straw), differences in C availability due to particle size or degree of degradation by microorganisms did not influence slurry N availability measurably. For sawdust, with high lignin content, the results indicate that limited C availability may lead to lower slurry N immobilization.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"55 10","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141799569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Unravelling the synergistic effects of arbuscular mycorrhizal fungi and vermicompost on improving plant growth,nutrient absorption, and secondary metabolite production in ginger (Zingiber officinale Rosc.) 揭示丛枝菌根真菌和蛭肥对改善生姜(Zingiber officinale Rosc.)植物生长、养分吸收和次生代谢物产生的协同作用
Frontiers in Sustainable Food Systems Pub Date : 2024-07-25 DOI: 10.3389/fsufs.2024.1412610
C. Sarathambal, V. Srinivasan, A. Jeevalatha, R. Sivaranjani, M. Alagupalamuthirsolai, M. F. Peeran, S. Mukesh Sankar, Priya George, Fathima Dilkush
{"title":"Unravelling the synergistic effects of arbuscular mycorrhizal fungi and vermicompost on improving plant growth,nutrient absorption, and secondary metabolite production in ginger (Zingiber officinale Rosc.)","authors":"C. Sarathambal, V. Srinivasan, A. Jeevalatha, R. Sivaranjani, M. Alagupalamuthirsolai, M. F. Peeran, S. Mukesh Sankar, Priya George, Fathima Dilkush","doi":"10.3389/fsufs.2024.1412610","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1412610","url":null,"abstract":"The present research explored the impact of varying concentrations of arbuscular mycorrhizal (AM) fungus inoculum and vermicompost on the growth, nutrient absorption, photosynthetic gas exchange, and quality parameters of ginger over a 2-year period in field conditions. In this study, the combination of 50 g each of AM and vermicompost increased plant height, number of tillers, and rhizome yield compared to the control. However, higher dry biomass (61 g) was observed with the combination of 75 g of each amendment. As expected, the application of arbuscular mycorrhizae (AM) positively affects spore count and mycorrhizal dependency percentage ranging from 58 to 70.5 spores per 50 g substrate and 19–36%, respectively. The combined use of vermicompost and AM led to a lower disease incidence of 10.5% in treatments with 25 g of each amendment and 10.1% in treatments with 50 g of each. Nutrient accumulations, particularly phosphorus (P), iron (Fe), and zinc (Zn), exhibited greater levels in ginger plants treated with vermicompost and arbuscular mycorrhizal (AM) inoculation, compared to uninoculated ginger rhizomes. The plants treated with AM and vermicompost increased the biomass accumulation by increasing the stomatal conductance and photosynthetic rate of leaves. AM and vermicompost improved ginger rhizome quality, increasing phenols by 37.8%, flavonoids by 35.7%, and essential oil by 29% compared to the control. The analysis revealed that the total flavonoid content was significantly higher in AM-treated samples compared to the control. However, the phenol content did not exhibit statistical significance across the treatments. Regarding essential oil (EO) content, our experiment highlighted that treatments with AM and vermicompost have consistently yielded higher EO content compared to other treatments. In contrast, there was no discernible trend in the fiber content with the application of AM and vermicompost amendments. PCA and correlation analyses revealed a positive influence on plant growth, nutrient absorption, and quality parameters, except for the incidence of diseases in ginger. Overall, our study finds that the concurrent use of vermicompost and arbuscular mycorrhizae (AM) makes a substantial contribution to the growth, nutrient uptake, photosynthetic, and quality parameters of ginger.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"6 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141804866","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Understanding the diversity of Community Supported Agriculture: a transdisciplinary framework with empirical evidence from Germany 了解社区支持农业的多样性:一个跨学科框架与德国的经验证据
Frontiers in Sustainable Food Systems Pub Date : 2024-07-24 DOI: 10.3389/fsufs.2024.1205809
Matthias Middendorf, Marius Rommel
{"title":"Understanding the diversity of Community Supported Agriculture: a transdisciplinary framework with empirical evidence from Germany","authors":"Matthias Middendorf, Marius Rommel","doi":"10.3389/fsufs.2024.1205809","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1205809","url":null,"abstract":"Community Supported Agriculture (CSA) is an emerging model within alternative food networks (AFNs). It shapes close relationships between food producers and consumers, thereby contributing to food sovereignty and agri-food system transformations. Despite rapid growth from about 10 to over 500 CSAs in just over a decade, the model in Germany still remains niche. We argue that further and faster scaling up requires better understanding of its diversity, yet a comprehensive conceptualization of CSA types is lacking, with insufficient differentiation in research and practice.This study employs a transdisciplinary mixed-methods approach (literature, qualitative, and quantitative data) in cooperation with the German CSA Network. By integrating organizational perspectives, we found that CSAs are highly complex and diverse organizations. Therefore, we firstly aimed at identifying characteristics that we summarized in a CSA framework. In a second stage, we used this framework as guiding structure for co-developing a survey with the Network covering 70 participating CSAs.As the defining characteristic within the CSA framework, community financing (domain A) clarifies the uniqueness of the CSA model, thus enables delimitation from other AFN forms. Then differentiation characteristics (domain B) encompass the diversity of CSA configurations. CSA governance (domain B1), regarding the predominant characteristic of organizational governance, distinguish between Producer-led, Consumer-led, and Integrated (all-in-one) CSA types. Varying characteristics (domain B2) specify CSA configurations and enable additional distinction between CSAs. Based on the developed CSA framework, the survey results verify the applicability of governance types in particular, while confirming a high level of diversity of differentiating characteristics in general.This study can be used to reveal existing generalizations about CSAs, providing a starting point for more nuanced and critical views in research and practice. When seen against the background of AFN and food sovereignty discourses in particular, CSA is an alternative production-distribution model, but not every CSA is governed or structured in alternative ways. CSAs can simultaneously contain both more conventional, traditional elements, as well as more alternative elements. Moreover, the framework provides easy-to-access differentiation criteria for matching members with their most suitable CSAs and vice versa. Overall, this study illustrates that CSA cannot be considered as homogeneous AFN type but be rather marked as a diverse field of its own.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"47 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141808619","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microplastics and cadmium pollution in Chinese sweet potato fields 中国甘薯田中的微塑料和镉污染
Frontiers in Sustainable Food Systems Pub Date : 2024-07-24 DOI: 10.3389/fsufs.2024.1420628
Liang Shi, Yuan Xu, Zanming Chen, Binhao Liu, Yanan Hou, Jianmin Li, Fei Dang, Yujun Wang, Zhenguo Shen, Jinghui Yang, Yahua Chen
{"title":"Microplastics and cadmium pollution in Chinese sweet potato fields","authors":"Liang Shi, Yuan Xu, Zanming Chen, Binhao Liu, Yanan Hou, Jianmin Li, Fei Dang, Yujun Wang, Zhenguo Shen, Jinghui Yang, Yahua Chen","doi":"10.3389/fsufs.2024.1420628","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1420628","url":null,"abstract":"Microplastics (MPs) and heavy metals (HMs) coexist in the farmland of China.It still remains unclear the extent of their exposure and distribution in sweet potato fields.Polyethylene (PE) or polyamide (PA) is the main MP pollutant in contaminated sweet potato sites, and the MP abundance in low-latitude and eastern areas is highest. Methods: In this study, saturated NaCl solution, a stereo microscope, a Fourier transform infrared spectrometer, and an electrothermal digester are used for the extraction, observation, identification of MPs, and analysis of Cd elements in soil, respectively.In this study, saturated NaCl solution, a stereo microscope, a Fourier transform infrared spectrometer, and an electrothermal digester are used for the extraction, observation, identification of MPs, and analysis of Cd elements in soil, respectively.Here, we found an average MP level of 112,400 items/kg in 30 sweet potato field sites based on the items in 5 g soil and the magnification (200x), and the maximum abundance was 197,153 items/kg in Laiyang city, Shandong province, by field survey. The distribution characteristics of MPs are middle-latitude areas < low-latitude areas, and eastern areas > central areas. Most MPs are of the fragment and film shape, which account for 47.96 and 40.22%, respectively. In order to detect MP polymers in three cities named “Liancheng,” “Huanggang,” and “Laiyang” with different degrees of development, a laser infrared imaging system was used as a novel instrument to explore the MPs larger than 10 μm.The results showed that PA is the main MP pollutant in contaminated sweet potato sites, and soil texture, planting time, and urbanization processes may be the main factors affecting MP distribution. The average cadmium (Cd) concentration in 215 field sites is 0.15 mg/kg, and the local Cd pollution is existing, but the overall pollution is low. In addition, Cd concentration was negatively correlated with MP abundance. This study reveals the status of MP and also Cd pollution in sweet potato fields, which provides a theoretical basis for the safe production and utilization of sweet potato fields.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"32 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141808296","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Annual variation in thermal and structural properties of yesso scallops (Mizuhopecten yessoensis) adductor muscle 耶索扇贝(Mizuhopecten yessoensis)内收肌热量和结构特性的年度变化
Frontiers in Sustainable Food Systems Pub Date : 2024-07-24 DOI: 10.3389/fsufs.2024.1357410
Yuanyong Tian, Minghui Jiang, Zhuolin Wang, Chunhong Yuan
{"title":"Annual variation in thermal and structural properties of yesso scallops (Mizuhopecten yessoensis) adductor muscle","authors":"Yuanyong Tian, Minghui Jiang, Zhuolin Wang, Chunhong Yuan","doi":"10.3389/fsufs.2024.1357410","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1357410","url":null,"abstract":"The annual changes of the scallop’s adductor muscle in Ca2+-ATPase activity, chymotryptic digestion, endogenous fluorescence spectra, sulfhydryl content, and surface hydrophobicity were studied. Ca2+-ATPase activity peaked in February and reached its minimum in August for males and in July for females. However, no significant differences were observed between males and females throughout the year. The inactivation rate of Ca2+-ATPase activity increased by 17- to 36-fold when the temperature rose from 38°C to 45°C. The ratio of free myosin to bound myosin was approximately 5:4 at 0.5 M KCl and changed to 5:1 at 1.0 M, as determined by modeling. Chymotryptic digestion demonstrated that scallop myosin could be cleaved into S-1/rod portions at 0.1 M and HMM/LMM at 0.5 M KCl. Furthermore, no significant seasonal variations were observed in chymotryptic digestion patterns, endogenous fluorescence, surface hydrophobicity, or sulfhydryl content. In conclusion, the structure and thermal stability of both male and female scallops remained stable throughout the year, making them suitable for processing and preservation.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"58 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141809493","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Participatory Guarantee Systems: structure, benefits and reasons for participation – insights from the Italian case study of Campi Aperti 参与式保障体系:参与的结构、益处和原因--意大利 Campi Aperti 案例研究的启示
Frontiers in Sustainable Food Systems Pub Date : 2024-07-24 DOI: 10.3389/fsufs.2024.1388853
Greta Winkler, Sonja Kaufmann, Nikolaus Hruschka, Christian R. Vogl
{"title":"Participatory Guarantee Systems: structure, benefits and reasons for participation – insights from the Italian case study of Campi Aperti","authors":"Greta Winkler, Sonja Kaufmann, Nikolaus Hruschka, Christian R. Vogl","doi":"10.3389/fsufs.2024.1388853","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1388853","url":null,"abstract":"Participatory Guarantee Systems (PGS) have emerged from initiatives introduced by farmers and civil society to ensure the organic quality of products by directly involving producers, consumers, and other stakeholders in the guarantee process. While actor participation in PGS provides the foundation for these systems, it also presents challenges, yet little empirical research on this has been undertaken. This study used a framework to analyze four dimensions of participation in PGS: who, how, what kind, and why? The Italian case study of Campi Aperti was qualitatively and quantitatively analyzed by means of: (1) research of internet documents, (2) semi-structured interviews with seven key members and one expert, and (3) an online survey of PGS members (N = 614 members, survey respondents: n = 16 producers and 45 co-producers). Participation took the form of two main activities: management of the guarantee process and organization of farmers’ markets. Discussions are held and decisions made at assemblies and market meetings. The growing number of producers joining the PGS has added to organizational tasks, and hence increased costs. Participants stated that the reasons for joining the Campi Aperti PGS and the benefits of being a member were to gain access to city markets and to send a political message. Building trust between members was an additional benefit cited. Time constraints emerged as the main drawback preventing participation by members, with producers taking on more roles and investing more time in the PGS than co-producers. However, co-producers provided evidence of other ways in which they participated in the PGS, in particular by making purchases and socializing at the markets.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"5 8","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141809145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
The use of cheese whey powder in the cultivation of protein-rich filamentous fungal biomass for sustainable food production 利用奶酪乳清粉培养富含蛋白质的丝状真菌生物质,促进可持续食品生产
Frontiers in Sustainable Food Systems Pub Date : 2024-07-23 DOI: 10.3389/fsufs.2024.1386519
Burcu Kaya, E. R. K. B. Wijayarathna, Y. Yüceer, S. Agnihotri, M. Taherzadeh, T. Sar
{"title":"The use of cheese whey powder in the cultivation of protein-rich filamentous fungal biomass for sustainable food production","authors":"Burcu Kaya, E. R. K. B. Wijayarathna, Y. Yüceer, S. Agnihotri, M. Taherzadeh, T. Sar","doi":"10.3389/fsufs.2024.1386519","DOIUrl":"https://doi.org/10.3389/fsufs.2024.1386519","url":null,"abstract":"Cheese whey is an industrial by-product that is generated in excess during the cheese production process in the dairy industry. Despite the potential utility of whey, it continues to pose environmental threats in the industry. This study comprehensively evaluates the utilization of two fermentation techniques (solid-state fermentation and submerged fermentation) for producing fungal biomass from cheese whey powder, employing Aspergillus oryzae, Rhizopus oryzae, and Neurospora intermedia for sustainable food production. It has been observed that submerged fermentation is more effective in increasing the protein content of whey powder compared to solid-state fermentation. The highest biomass yield was achieved with A. oryzae (5.29 g/L, 0.176 g biomass/g substrate), followed by N. intermedia (3.63 g/L, 0.121 g biomass/g substrate), and R. oryzae (1.9 g/L, 0.063 g biomass/g substrate). In the bubble column reactor, the protein content of the substrate (78.65 g/kg) increased by 165.54 and 176.69% with A. oryzae (208.85 g/kg) and N. intermedia (217.62 g/kg), respectively. This study has demonstrated that whey powder can be converted into protein-rich biomass through fungal bioconversion. The obtained biomass has the potential to be developed as an alternative food and feed source, contributing to waste management and sustainable food production.","PeriodicalId":504481,"journal":{"name":"Frontiers in Sustainable Food Systems","volume":"80 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141810172","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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