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Eggs represent one of the most consumed animal products worldwide. In Europe, over 366 million laying hens and 6.1 Mt of derived eggs have been estimated in 2020, and Italy represents the fourth largest producer (41 million hens and 0.79 Mt of eggs). Egg production has been identified as relatively environmental-friendly, but several environmental concerns have been recently raised considering the inefficient spent hens' management. Spent hens are generally euthanized and composted or incinerated, producing greenhouse gases while at the same time significant nutrients are lost. First, the research reviews the egg supply chain characteristics and the alternative spent hens' valorization pathways. Then, using the material flow analysis, the research quantifies and qualifies the consistencies of laying hens and protein content included in spent hens across Italy, providing a comprehensive assessment of the national scenario under an environmental and circular perspective. Furthermore, the research develops an inventory of the spent hens' co-products and by-products in Italy, focusing on the flows of proteins for further environmental studies. The research has highlighted that over 13,948 t of proteins could be extracted, distinguishing between those embedded within offal, feathers and blood. In addition, spent hens can be used for human consumption, as well as for material or energy recovery through anaerobic digestion or microbial fermentation. Results are addressed to farmers, who are required to boost their environmental performances, and public authorities, who must implement sustainable strategies to collect spent hens. [ABSTRACT FROM AUTHOR]

Abstract: The reaction of formaldehyde with enantiomerically pure α-N-protected amino acid hydrazides is described. The system has been investigated in different solvents, including both aqueous formaldehyde and paraformaldehyde, with the [...]

[alpha]-Amino acids and [alpha]-amino methyl esters are easily converted to their N-monoalkyl derivatives by a reductive condensation reaction using several carbonyl compounds in the presence of sodium borohydride. This reducing agent has shown a wide versatility with minor but essential procedural variations. The reaction allows the [alpha]-monodeuterium labeling of the new N-substituent by use of sodium borodeuteride. Key words: [alpha]-amino acid, [alpha]-amino methyl esters, sodium borohydride, reductive N-monoalkylation, carbonyl compounds.

The goal 12 of the 2030 Agenda for Sustainable Development takes into consideration the responsible consumption and production in the perspective of circular economy. The agri-food sector is more actively involved in these initiatives, because it offers the possibility to exploit waste and by-products, by adopting suitable biotechnologies. Such processes can be carried out either under aerobic conditions, for the production of compost, or anaerobically, for the production of biogas. In this work the case of a plant managed by Desag Ecologia, located in the municipality of Sedegliano, in the North-East of Italy, is presented. The plant started up in June 2016. Its main activity consists in exploitation of the organic fraction of municipal solid waste and urban forestry green waste coming from separate waste collection. The basin of provenance of collected materials consists not only of the province of Udine, but also of other areas of the Friuli Venezia Giulia region and other northern Italian regions. The plant ensures the production of both biogas (used in a cogeneration installation for producing electricity and heat) and quality compost, which can be used in agriculture, after submission to physico-chemical analyses to verify the end-of-waste status. In this way, the reduction of waste disposal in landfill is ensured. Thermal energy is partially recovered for the production of hot water to heat the anaerobic digester, the leachate collection tank and the plant rooms. Approximately 10% of electricity is self-consumed for the needs of the anaerobic facility, the remaining amount is fed straight into the public electricity network. [ABSTRACT FROM AUTHOR]

Recently, more and more companies are implementing good environmental practices. Environmental certifications, besides being valuable management tools for companies, given the opportunity to strengthen their role on the market. An example of such virtuous behavior is the case of Valcucine, an enterprise of the Livenza furniture district in Northern Italy. Valcucine focuses its care in the production of furniture, in particular of kitchen units, characterized by sustainable production, eco-compatibility of materials and the lowest possible environmental impacts. Valcucine wishes to transfer its philosophy to customers by improving product quality, rationalizing the use of recyclable virgin raw materials, employing also recycled materials and reducing dangerous emissions into the environment. For this reason, Valcucine obtained several certifications, such as ISO 14001, Forest Stewardship Council (FSC), F**** (4 stars) Japanese Standard and Leadership in Energy and Environmental Design (LEED). In particular, the LEED certification, obtained for the Invitrum and Meccanica production lines, allows the enterprise both to differentiate from the competitors and to enter new segments of the market, such as the Arab Countries, where the LEED certification is renowned and appreciated. This gives a strong competitive advantage to Valcucine, working in a production field which has been saturated for many years. This virtuous behavior of the enterprise fits well in the principles inspiring circular economy and perfectly embraces the Goals 6 (Clean and Water Sanitation), 7 (Affordable and Clean Energy), 8 (Decent Work and Economic Growth), 12 (Responsible Consumption and Production) and 15 (Life on Land). [ABSTRACT FROM AUTHOR]

The transport of both goods and passengers notably influences air quality. If strong decisions by the governments will not be taken, oil consumption for transport will be nearly doubled in 2030 if compared with 2000, thus considerably increasing the atmospheric presence of greenhouse gases. To boost the purchase of alternatively supplied cars would avoid serious, if not catastrophic, climatic changes. Our investigation shows what the situation is concerning new cars sold by SINA, an official concessionary firm of ten brands in the province of Pordenone, in the North East of Italy, covering about 40% of the local market. The supply types and the brands of the new cars sold in the branch offices of the firm from 2011 to August 2015 have been taken into consideration. The most sold cars are still petrol and diesel supplied, whereas alternatively supplied cars (liquefied oil gases, methane and electric) represent nowadays only 7.51% of the total in this territory. Processing of the data that have been put at our disposal by the firm allowed to compare the situation of the province of Pordenone with the Italian one, and to put in light the critical aspects still hindering the purchase of alternatively supplied cars. [ABSTRACT FROM AUTHOR]

In this paper we describe the unprecedented reaction between α-diazo esters 1 and iodine. The reaction, carried out in the presence of aqueous NaHCO3, afforded the Z-isomer of the corresponding unsaturated-2-iodo ester 8. The configuration of compounds 8 was determined using the 3JC&bond;H coupling between carbonyl carbon atom and alkene proton. Mechanistic considerations accounting for the observed phenomena and including quantum chemical calculations are proposed. Copyright © 2008 John Wiley & Sons, Ltd. [ABSTRACT FROM AUTHOR]

A rapid and efficient method for the synthesis of N-carbamoyl-L-amino acids is reported. The procedure, involving the reaction between urea and α-amino acids sodium salts, was performed under microwave conditions using an unmodified domestic microwave oven. A careful study of the operative conditions indicated proline (1d) as the less reactive substrate and phenylglycine (1e) as the more reactive one among all the α-amino acids tested. Substitution of urea with potassium cyanate produced a low conversion into the corresponding N-carbamoyl derivative, and a possible explanation of this result is reported. [ABSTRACT FROM AUTHOR]

The nitration of diphenylmethane to three main isomeric dinitro derivatives, performed with nitric acid in dichloromethane, is proposed as an organic laboratory experiment showing a number of advantages over typical aromatic nitrations in sulfuric acid. [ABSTRACT FROM AUTHOR]

One of the most important manufacturing areas of the Friuli Venezia Giulia region is the territory close to Pordenone, the Livenza furniture district. This industrial district, consisting of industries of wood, wood and cork products, furniture, straw articles, and weave materials, located in 11 municipalities of that area, was the first Italian district to obtain the Eco-Management and Audit Scheme (EMAS) Registration in 2006. Data and information from a questionnaire compiled by more than 100 firms and 11 municipalities of the district were used to draw up the territorial environmental analysis (TEA). For the EMAS registration renewal, obtained in 2016, the TEA was updated by reviewing the methodology of the environmental impact evaluation: the ecological footprint (EF) was compared with the carrying capacity (CC) of that area. The results put in light that the EF was greater than the CC. Several actions for reducing the environmental impacts of the district activities were highlighted. [ABSTRACT FROM AUTHOR]

Highlights • An evaluation of multi-functionality of cultivation systems was taken into account. • A multi-criteria method was employed to assess the degree of multi-functionality. • Conventional, organic and biodynamic farming methods were taken into account. • Production of wild rocket (Diplotaxis tenuifolia) was considered. • The best multi-functional indicator was obtained in the case of the biodynamic farm. Abstract Evaluating the economic, social and environmental impacts of different cultivation systems is an essential issue for the introduction of management practices that aim at both achieving more sustainable forms of land use and improving social well-being. A number of studies compared and assessed organic and conventional farms in relation to their multifunctional effects. However, to our knowledge there is no literature which took into account at the same time the multifunctional role of a greater number of different farming methods. In this paper an attempt is made to employ the multi-criteria method in order to conduct quantitative assessment of the degree of multi-functionality on three different farming methods, namely, conventional, organic and biodynamic. A species of leaf vegetable was considered, that is, wild rocket. The three farms taken into examination are all located in the province of Udine, Italy, with a maximum distance of about 20 km one from another. In all the three farms, greenhouses equipped with the same type of roofing were employed. The research was carried on for two consecutive years, that is, 2012 and 2013; spring, summer and autumn productions were considered. In this way we minimized the influence of some parameters (climatic conditions, luminosity, growing period), but the specific techniques adopted in the three farms were not optimized. The producers continued to utilize the methods usually employed in their farms, in order to obtain results showing the productive situation of the territory. The obtained information was used as input data for the multi-attribute model. Attributes and utility functions were organized under three major groups: economic, social and environmental parameters. Findings may be regarded simply as the results of a pilot study, as they were obtained on a small sample of farms, but suggest that the degree of multi-functionality is the most explicit in the case of the biodynamic farm, that has a better property and social structure. [ABSTRACT FROM AUTHOR]