Islam is the second-largest religion on a global scale. All around the world Muslims are estimated to comprise more than 1.9 billion people. Therefore, the demand for Halal commodities is expected to reach a high growth rate: thus, it is crucial to increase its global market’s reliability and traceability. Based on these grounds, the scope of this paper is to assess Halal food sustainability, examining the barriers and opportunities offered by the certification and blockchain tools. To this purpose, the authors carried out an integrative literature review, selecting 54 contributions in the Web of Science platform. Despite several limitations, such as the lack of a standardized framework or universally accepted and reliable certifying authorities, the implementation of blockchain technology has emerged as an interesting instrument to increase the trustworthiness and traceability of Halal foods. This tool could also help the development of protocols and standard procedures, ensuring hygienic and permitted products that may boost food safety and security. Besides, the enhancement of the Halal certification and the blockchain tool, even if several efforts are required in terms of innovation and cooperation by local authorities, industrial associations and leading consumers, could enhance fair trade, ethical business, green animal breeding and environmental economics, and hence sustainable development.

PurposeThe purpose of this paper is to review, through a systematic literature review, the different perspectives from which imperfect, ugly and suboptimal food products lead to food waste, as well as to ascertain which are the already proposed improvements, and to present further solutions to develop more sustainable food production and consumption.Design/methodology/approachA systematic literature review was conducted using PRISMA methodology and searching for the following keywords: “imperfect fruit”, “imperfect food”, “ugly fruit” and “ugly food”; the review was carried out within three databases (Emerald, Scopus and Science Direct-Elsevier), starting, since the topic is quite recent, from the first published article on this issue. Only peer-reviewed papers were selected.FindingsResults reveal that, among 188 papers, only 49 fit the aim of the literature review, analysing what strategies can be used to ameliorate consumers' perception of suboptimal food in order to fight food waste. Specifically, four different interventions are suggested: on the supply chain, on personal experience and awareness campaigns, on promoting circular economy, and on marketing and advertising campaigns.Originality/valueThis paper fills a gap in literature since, by the authors' knowledge, this is the first literature review which analyses different strategies on food waste reduction linked to imperfect/suboptimal food, suggesting further steps which may be taken.

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PurposeThe purpose of this paper is to investigate, through a quantitative research, the impact of the COVID-19 pandemic on online food delivery in Italy and Poland, as well as to ascertain whether or not, under a consumer perspective, respondents consider such method as impacting on the environment and on food waste.Design/methodology/approachAn empirical survey of consumers at Italian and Polish Universities was conducted using the online survey computer-assisted web interview (CAWI) method.FindingsResults reveal that the COVID-19 pandemic has modified consumer habits in both Italy and Poland, though the researched sample does not have full knowledge of these changes. Moreover, the study has proved once again that online food delivery may impact negatively on the environment and the food waste issue.Originality/valueThis paper fills a gap in literature since, by the authors' knowledge, it is the first quantitative study analysing Italian and Polish young consumers as to online food delivery habits and their approach to sustainability aspects of this purchasing method.

Conventional and intensive agriculture systems represent an environmental challenge. This research aims at evaluating the economic and environmental implications of conventional and organic durum wheat production in Southern Italy by applying material flow analysis and the crop accounting method. The purpose is to evaluate and compare the natural resource consumption, waste generation and economic profitability of conventional and organic durum wheat farming, respectively. The functional unit is one hectare of cultivated land. System boundaries encompass all agronomic operations, from cradle to gate. The research applies a bottom-up approach and relies on either primary or secondary data. It emerges that organic durum wheat production reduces the use of synthetic chemical and phytosanitary products, as well as plastic waste, by up to 100%. Moreover, it decreases diesel use by 15%, with a consequent reduction in CO2 emissions, and also avoids soil and groundwater pollution. From an economic perspective, gross income for conventionally farmed durum wheat is still 55% higher compared to organic production. Public authorities should boost environmental sustainability by supporting organic production from either an economic or a social perspective, by enhancing the sharing of best practices, by certification for farmers’ groups, by research and innovation, and by incentives in taxation. Overall, this research represents a further step towards the adoption of sustainable agricultural practices.