Search results for " food chain"

Implication des enzymes dans la perception chimio-sensorielle : une piste dans les troubles olfacto-gustatifs induits par des xénobiotiques ?

2019

International audience

Reliable bioassays to detect potential hazard of paperboard food contact material extracts

2016

Food contact materials (FCM) represent a major economic issue and a large field of innovation. Food packaging production must be in compliance with the European Regulation 1935/2004: the third article specifies that FCM must not transfer their constituents to food in quantities which could endanger human health under normal or foreseeable conditions of use. Indeed, these materials are not inert and, in addition to started substances, Non-Intentionally Added Substances (NIAS) are able to be released into the food. NIAS can be contaminants from recycled materials, impurities, synthetic residues, new substances formed along the packaging production chain… Then, NIAS could represent a larget pa…

In vitro hazard assessment of nanoparticles developed for biomedical applications

2016

Nanotechnology is a growing sector in industry for twenty years and nanomaterials are currently used in numerous industrials applications. Their interest is based on their dimensions and their shape that give them very particular technological and biological properties. However, the development of these nanoparticles, their industrial preparation and integration into various products already involve an initial increased of human exposure (via inhalation, percutaneous and oral route). Another exposure pathway exists and is represented by drug injections. The risks associated with these new technologies and new products are still unclear. After a characterization step (zeta potential, TEM, TG…

Extraction d'éléments traces métalliques à partir de pains libanais et évaluation du danger de ces mélanges

2018

Parmi les éléments traces métalliques (ETM) qui peuvent être présents dans les aliments, certains sont connus comme étant toxiques et doivent faire l’objet d’une surveillance accrue. En ce qui concerne la sécurité sanitaire, il semble pertinent d’étudier le cas du pain, qui représente une part majoritaire de la ration journalière de la population libanaise. Dans une étude précédente, l’Institut de Recherche sur l’Agriculture Libanaise (IRAL) a déterminé la présence de plusieurs ETM (arsenic, cadmium, cobalt, chrome, mercure, nickel et plomb) dans le pain libanais. Bien que la toxicité de chaque ETM soit connue individuellement, il est important de tester la toxicité de ce mélange d’ETM, pré…

Genotoxicity assessment of a polycarbonate sol-gel coating and its precursors intended to be used for food contact

2016

Caffeine increases the expression of cystatin SN in human submandibular acinar-like HSG cells

2013

The study aimed at evaluating in vitro the effect of caffeine on expression of cystatin SN, a potential marker of sensitivity to bitterness in humans.Differentiation of human submandibular gland (HSG) cells was induced by culturing cells on Matrigel. Caffeine cytotoxicity was assessed over 3 days by the Resazurin test. Finally, effects of 5, 50 and 100μM caffeine exposure on cystatin SN expression were explored over 3 days by ELISA.At concentrations relevant to human adult plasma levels (5, 50 and 100μM), caffeine did not affect cell viability whether cells were differentiated or not. Cystatin SN levels were overall higher in differentiated cells and increased with time in both conditions. …

From Scarcity to Abundance : Food Waste Themes and Virtues in Agrarian and Mature Consumer Society

2019

Uusitalo and Takala address the food waste problem as a societal phenomenon and examine ethical virtues, values linked to them and food practices in two different time periods: agrarian society (1885–1917) and mature consumer society (2008–2017), in Finland. They use data from newspapers to uncover how ethical principles can underpin understanding of the food waste phenomenon. The study shows how the virtues adopted by food chain actors guide their practices towards sustainable ways of handling excess food. While societal themes of food waste are changing, virtues and food practices are changing as well, but some deep-rooted societal virtues and values persist. The chapter concludes with re…

Corporate responsibility in the food chain: The criteria and indicators

2012

Corporate responsibility (CR) is becoming a key issue in the food chain. In order to make sense of this phenomenon, a seminal aper by Maloni and Brown (2006) called for further empirical investigation on the criteria of responsibility in the food supply chain. The purpose of this paper is to answer the call by identifying the criteria for defining CR and develop indicators for measuring the responsibility performance of the food chain. The study was based on interactive and participatory stakeholder dialogues with diverse experts, corporate representatives and other stakeholders, including non-governmental organizations (NGOs) and governmental bodies. Through an iterative research process w…