Suchergebnisse

Constatant une certaine insensibilité des populations défavorisées aux politiques d'éducation alimentaire, les acteurs locaux cherchent à mettre en place des projets les ciblant. C'est dans ce cadre que prend source le projet nommé « Chacun son fruit », émanant d'un Conseil général. Afin de réaliser l'étude de faisabilité du projet, nous avons rencontré des familles de collégiens en ZEP. En étudiant leurs habitudes alimentaires ainsi que leurs perceptions des actions d'éducation alimentaire, nous avons constaté une différenciation sociale. Néanmoins, le projet est plébiscité par les parents, pour qui l'alimentation des enfants est primordiale. Les avis et les envies des enfants sont très souvent pris en compte dans les choix alimentaires. De plus, les enfants ont un rapport plus proche que leurs parents aux normes en vigueur. Nous avons assisté à quelques interactions parents-enfants qui ont dévoilé le rôle de moralisateurs que peuvent jouer certains enfants. ; Noting a certain insensitivity from the underpriviledged populations towards the diet education policies, the local actors seek to set up projects targeting them. It is within this framework that the project called "Everyone their own fruit" has its source, coming from a local authority. In order to carry out the study for the feasibility of the project, we have met families of secondary school students in ZEP. By studying their dietary habits as well as their perception of the actions of diet education, we noted a social differentiation. Nevertheless, the project is approved by the parents, to whom children's diet is essential. We noticed that children's opinion and desires are very often taken into account in diet choices. Moreover, children have a closer connection than their parents to the current standards. We witnessed a few interactions between parents and children which revealed the moralizing role that some children play.

The contamination of heavy metals in vegetables and fruits is a serious threat to food safety and human health. The present study was designed to investigate the occurrence and dietary exposure of lead (Pb), arsenic (As), cadmium (Cd), and mercury (Hg) in vegetables and fruits in Shandong Province, China. Results demonstrated that the mean level of total heavy metals was 30.25 µg/kg. The most frequently found heavy metal was Cd (69.2%) with a mean value of 11.54 µg/kg. The mean exposure values of Pb, As, Cd, and Hg in vegetables were 0.052, 0.045, 0.038, and 2.40 × 10(–3) µg/kg bw/day, respectively. Moreover, the calculated hazard quotient (HQ) values of mean levels for these four heavy metals were all less than 1, indicating the health risk of heavy metal exposure caused by vegetable consumption was low. This study has displayed baseline information on heavy metal contamination in vegetables and fruits, which can provide useful data support for the formulation of relevant standards and government management.

The standard methods for determining the quality of olives involve chemical methods that are time-consuming and expensive. These limitations lead growers to homogeneous harvesting based on subjective criteria such as intuition and visual decisions. In recent times, precision agriculture techniques for fruit quality assessment, such as spectroscopy, have been introduced. However, they require expensive equipment, which limit their use to olive mills. This work presents a complete methodology based on a new low-cost multispectral sensor for assessing quality parameters of intact olive fruits. A set of 507 olive samples were analyzed with the proposed device. After data pre-processing, artificial neural network (ANN) models were trained using the 18 reflectance signals acquired by the sensor as input and three olive quality indicators (moisture, acidity, and fat content) as targets. The responses of the ANN models were promising, reaching coefficient-of-determination values of 0.78, 0.86, and 0.62 for fruit moisture, acidity, and fat content, respectively. These results show the suitability of the proposed device for assessing the quality status of intact olive fruits. Its performance, along with its low cost and ease of use, paves the way for the implementation of an olive fruit quality appraisal system that is more affordable for olive growers ; This work was supported by grant PID2020-119217RA-I00 funded by MCIN/AEI/ 10.13039/ 501100011033, and grant IJC2019-040114-I funded by MCIN/AEI/ 10.13039/501100011033, and also by project TIColiVA with grant P18-RTJ-4539 funded by the Regional Government of Andalusia through the "PAIDI, Plan Andaluz de Investigación, Desarrollo e Innovación". The authors acknowledge Francisco Dominguez Calvo, the Nuestra señora de la oliva manager, for providing the olive samples and reference data on which the study was conducted, as well as Diego Tejada, for his support in the device design

Suitable orchard land in regions of high elevation, arid climates, and alkaline soil conditions is becoming more limited due to urban sprawl. With the loss of suitable farmland, increasing input costs, and the lack of sound fertility information for these regions, fruit growers face challenges in producing high quality fruit to meet local and general market demand. The question that arises is whether fruit growers can supply sufficient quantities of quality fruit to take full advantage of local and global demand. Government data for population, fruit production, and fruit consumption in Utah were reviewed to determine the potential size of the local market, and determine whether growers have opportunities to increase production to meet unsatisfied demand for high quality local produce. In addition to market analysis, fertility-based management strategies are needed to optimize yield and fruit quality in production areas of high elevation, arid climates, and alkaline soils. Three different approaches were used to investigate the effect of phosphorus (P) and potassium (K) on tart cherry fruit quality and yield at high elevations, arid climate conditions, and in alkaline soils. The approaches of this study include: a rate-response evaluation using the industry-standard Triple-16 fertilizer (16-16-16), and comparison of P and K fertilizer formulations to determine the most cost effective sources of these nutrients with regard to yield and fruit quality. Additions of P and K maintained adequate yield and fruit quality, but showed no significant difference among treatments, where historically aggressive nutrient management had been practiced. Fertilizer additions did result in a significant increase in yield and fruit quality where nutrient management programs were historically much less aggressive. There is no advantage of higher cost fertilizer formulations over standard low-cost sources (i.e.; Triple-16). Moreover, there is no significant advantage to splitting fertilizer application over time during the growing season. An analysis of government data indicates that, over the past 40 years, Utah has become a net importer of apples (1997), peaches (1987), and sweet cherries (2005), indicating increased local market opportunities. Increasing the fruit supply to the local market can best be accomplished by increasing yields and fruit quality on existing orchard acreage. Optimizing annual P and K nutrient management is an important key to maximizing yield and fruit quality. The results provide foundational guidelines of nutrient management for optimizing tart cherry production and fruit quality under regionally specific conditions.

Background: The US Food and Drug Administration has modified its regulations on nutrient content claims by considering healthy dietary ingredients as well as nutrients. Objective: To assess the relation between dairy and fruit as main ingredients in children's snacks and the Nutrient Rich Food (NRF8.3) nutrient density score. Methods: Commonly consumed children's snacks in the United States, Canada, France, and the United Kingdom (n = 261) were assigned into USDA What We Eat in America (WWEI) categories. Nutrient composition data came from industry websites, open-source government databases (USDA Standard Reference SR28; CIQUAL), and back-of-pack food labels. Nutrient density was calculated using the Nutrient Rich Food Index NRF8.3. Snacks with dairy or fruit as the first listed ingredient (n = 115) were compared to those that listed neither (n = 146). Snacks that contained fruits-vegetables-nuts (FVN) (n = 88) were compared to those that did not (n = 173). Results: NRF8.3 scores were higher for snacks listing dairy or fruit as main ingredients. Dairy or fruit when listed as the first ingredient were associated with higher percent daily values of protein, fiber, calcium, vitamin A, vitamin C, and vitamin D, lower saturated fat content and a 30-point increment in NRF8.3 scores. The presence of FVN was associated with a 22-point increment in NRF8.3 scores. Conclusion: The correspondence between back-of-pack food ingredients and the nutrient based NRF8.3 scores suggests that ingredients can also be used to communicate the nutritional value of foods to the consumer. Dairy and fruit, when listed as first ingredients, were an important component of the NRF8.3 nutrient density score.

The fruit of Cucumis metuliferus was collected at Vom, Jos South Local Government Area of Plateau State, this was cleaned, sliced, air dried, pulverised and cold extracted with solvents of different polarities. The (n-hexane, chloroform, methanol and water) extracts of C. metuliferus were tested for in vitro antimicrobial assay against Salmonella gallinarum at varying concentrations, 200 mg/ml to 1000 mg/ml using the disc diffusion method. There was no zone of inhibition by the n-hexane and chloroform extracts at 1000 mg/ml, it was resistant. The methanol extract showed zones of inhibition of 8.33 ± 0.52, 9.67 ± 0.52, 11.67 ± 1.03, 13.67 ± 0.52 and 14.67 ± 0.52 mm at 200, 400, 600, 800 and 1000 mg/ml respectively. The water extract showed zones of inhibition of 7.50 ± 0.55, 8.50 ± 0.55 and 9.67 ± 0.52 mm at 600, 800 and 1000 mg/ml respectively. The zones of inhibition for the standard antibiotics ciprofloxacin 5 µg, chloramphenicol 10 µg and augmentin® 30 µg was 19.33 ± 1.03, 10.66 ± 0.52, 7.33 ±0.52, mm respectively, while tetracycline 30 µg, erythromycin 5 µg, ceftazidime 30 µg and oxacillin 1µg were resistant. The MIC and MBC of 50 mg/ml was recorded for the methanol extract. This study therefore showed that the fruit extracts of Cucumis metuliferus has antimicrobial activity and may probably provide the basis for its use in traditional medicine.

"What does the good life mean in a "backward" place? As communist regimes denigrated widespread unemployment and consumer excess in Western countries, socialist Eastern European states simultaneously legitimized their power through their apparent ability to satisfy consumers' needs. Moving beyond binaries of production and consumption, the essays collected here examine the lessons consumption studies can offer about ethnic and national identity and the role of economic expertise in shaping consumer behavior. From Polish VCRs to Ukrainian fashion boutiques, tropical fruits in the GDR to cinemas in Belgrade, The Socialist Good Life explores what consumption means in a worker state where communist ideology emphasizes collective needs over individual pleasures."--

Ziel dieser Arbeit war es, technologiebedingte Veränderungen im Profil flüchtiger Inhaltsstoffe während der Fruchtsaftverarbeitung aufzuzeigen. Gleichzeitig sollte eine Bewertung von artfremden 'carry over'-Aromastoffen erfolgen und deren Einfluss auf das Aromaprofil eines Fruchtsaftes beurteilt werden. Hierzu wurden aus unterschiedlichen Phasen der Fruchtsaftherstellung authentische Proben (Direktsäfte, Recovery-Aromen, Saftkonzentrate) von der Schutzgemeinschaft der Fruchtsaftindustrie (SGF) zur Verfügung gestellt. Ergänzt wurde diese Palette durch industrielle Halb- und Fertigwaren, um Abweichungen vom geforderten authentischen Profil zu definieren. Es kamen dabei für die Fruchtsaftverarbeitung wesentliche Fruchtarten (Apfel, Orange, Ananas, Pfirsich und Passionsfrucht) zur Anwendung. Die Bestimmung der Aromaprofile erfolgte anhand validierter qualitativer und quantitativer Aromastoffanalytik. Nach Abtrennung und Anreicherung der Aromastoffe mittels Simultaner Destillation-Extraktion (SDE) wurden die Extrakte per Kapillargaschromatographie-Massenspektrometrie (HRGC-MS) analysiert. Durch den Einsatz sensorischer Untersuchungen wurden Schwellenwerte von ausgewählten 'carry over'-Aromastoffen und 'off-flavour'-Komponenten in fünf verschiedenen Matrices ermittelt. Zusammenfassend lässt sich an Einzelergebnissen festhalten: Das bei Ananasfrüchten erhaltene Aromaprofil entsprach weitgehend Literaturangaben. Während bei den geprüften Recovery-Aromen partiell gute Übereinstimmung mit dem Aromaprofil der Frucht gefunden wurde, war bei den Handelssäften aus Konzentrat meist nur die jeweils bei den entsprechenden Saftkonzentraten ermittelte, praktisch nur von Furaneol determinierte Aromastoffzusammensetzung zu finden. Die geprüften Direktsäfte – sieht man von ihren vergleichsweise hohen Acetoinanteilen ab - zeigten fruchtähnliche Aromaprofile. 2-Ethylhexansäure (2-EHA) wurde als technologiebedingte Kontaminante in Fruchtsäften und Babynahrung festgestellt. In 80% bzw. 73% der geprüften Babynahrung- und Fruchtsaftproben – darunter auch Bio-Produkte - wurde die Substanz nachgewiesen. Die im Tierversuch als teratogen eingestufte Verbindung migriert aus den Deckel-Dichtungen der Glasverpackungen in das Lebensmittel. Orangensaft-Fertigprodukte wiesen im Vergleich zu authentischen 'single strength'-Proben einen niedrigeren Gehalt an Aromastoffen auf. Empfindliche Aromastoffe wie Ethyl-2-methylbutanoat und Z-3-Hexenal sind in den analysierten Handelsproben nicht mehr detektiert worden. Die Verbindungen Ethylbutanoat, Hexanal und Z-3-Hexenal wurden nur im Essenzöl von Orangen nachgewiesen, nicht aber in Schalenölproben. Eine eindeutige Unterscheidung von (wertvollem) Orangen-Essenzöl und (geringwertigerem) Orangen-Schalenöl ist derzeit ausschließlich anhand von HRGC-MS ermittelter Aromaprofile nicht möglich. Um 13C-markierte Standards zur Stabilisotopenverdünnungsanalyse (SIVA) zu erhalten, wurden entsprechende Synthesen für die wichtigen Komponenten des Orangenaromas, Limonen und a–Terpineol, durchgeführt. Mittels SIVA ist es möglich, diese Verbindungen in Orangensäften, aber auch in Kosmetika exakt zu quantifizieren. Als Hauptkomponenten des Aromaprofils von Apfelsäften und Recovery-Aromen sind die Verbindungen 1-Butanol, 1-Hexanol, E-2-Hexenal, E-2-Hexenol und Butylacetat bestätigt worden. Das produzierte Saftkonzentrat enthält neben Erhitzungsprodukten wie Furfural keine charakteristischen Apfelaromastoffe mehr. Das ubiquitäre Auftreten in allen industriell frisch gepressten Apfelsäften von 3-Methyl-1-butanol und dessen Acetat, beides bekannte Indikatoren für Gärprozesse, scheint technologisch schwer vermeidbar zu sein. Die große Spanne von 0,01 mg/l bis 2,1 mg/l 3-Methyl-1-butanol in Apfelsaft macht aber deutlich, dass sich der Gehalt an fermentativ gebildeten Komponenten während der Fruchtsaftverarbeitung durchaus gering halten kann. Eine legislative Regulierung zum Vorkommen dieser Stoffe in Apfelsaft ist erforderlich. Bei der destillativen Recovery-Aroma-Gewinnung aus Apfelsäften zeigte sich die Tendenz einer leichten Abreicherung der d2HV-SMOW–Werte von Saft zu korrespondierendem Destillat. Anhand von Korrelationen der ermittelten 13C/12C- und 2H/1H-Daten von 1-Hexanol, E-2-Hexenal und E-2-Hexenol wird deutlich, dass eine Authentizitätsbewertung aber von diesem marginalen Effekt nicht berührt wird. Die Spuren an Fremdaromen zeigen, dass es unter der technologisch üblichen Produktions- und Reinigungspraxis zu Kontaminationen von artfremden Aromastoffen im Verlauf der Fruchtsaftherstellung kommen kann. Die Kombination aus ermittelten Schwellenwerten von 'carry-over'-Aromastoffen und deren tatsächliches Auftreten in Fruchtsäften zeigte, dass keine sensorische Beeinträchtigung der Produkte vorliegt. Ein höheres Potential, Produkte negativ zu beeinflussen, bergen die in Orangensäften in relevanten Gehalten nachgewiesenen 'off-flavour'-Komponenten a–Terpineol und Carvon. ; The aim of this study was to elucidate technologically caused changes in the profile of volatile components during fruit juice processing. In addition, the occurrence of 'carry-over' aroma compounds foreign to the species and their influence on the aroma profile should be evaluated. For this, authentic samples from different stages of the fruit juice processing, i.e. 'single strength'-juices, recovery aromas, and fruit juice concentrates, were provided by the Schutzgemeinschaft der Fruchtsaftindustrie (SGF). Included were also industrial semi-finished products and fruit juices purchased in supermarkets, to define variations from the authentic profile. The most important species used for fruit juice processing (apple, orange, pineapple, peach, and passion fruit) were considered. The determination of aroma profiles was carried out by a validated qualitative and quantitative aroma analysis. Aroma compounds were separated and enriched by simultaneous distillation-extraction (SDE) and subsequently analysed by high resolution gas chromatography-mass spectrometry (HRGC-MS). Using sensory tests the thresholds of selected 'carry-over'-compounds and off-flavour-components in five different matrices were determined. Summarizing, the following informations were acquired: The obtained aroma profile of pineapple fruits corresponded to a large extent with that described in the literature. Whereas the recovery aromas accorded, in part, with the profile of the fresh fruit, the pineapple juices made from concentrate showed an aroma profile that was similar to the aroma composition of juice concentrates. These were essentially dominated by furaneol. The commercial 'single strength'-juices under study exhibited, apart from high amounts of acetoin, fruit-like aroma profiles. 2-Ethylhexanoic acid (2-EHA) was found as technological contaminant in fruit juices and baby foods. In 80% of the baby food and 73% of the fruit juice samples under study – among them products labelled 'organic' – this substance was identified. Being known as teratogenic and potent carcinogeric compound for rodents, 2-EHA migrates from the plastic askets inside the metal lids into the food. Commercial orange juices contained lower amounts of aroma compounds compared to authentic 'single strength'-juices. Sensitive volatile components like ethyl 2-methylbutanoate and Z-3-hexenal were not detected in the commercial orange juices under study. The substances ethyl butanoate, hexanal and Z-3-hexenal were determined only in orange essence oil but not in any orange peel oil. An unambiguous differentiation between the high priced orange essence oil and the less valuable orange peel oil is not possible on the basis of HRGC-MS data to date. In order to obtain 13C-labeled standards for the stable isotope dilution assay, syntheses for important orange flavour compounds, i.e. limonene and a–terpineol were carried out. By means of these standards it was possible to quantify these substances in orange juices and cosmetics (limonene is one of the aroma compounds classified as allergenic and has to be declared on cosmetics containing a defined amount). The components 1-butanol, 1-hexanol, E-2-hexenal, E-2-hexenol, and butyl acetate were verified as main constituents of the aroma profile of apple juices and recovery aromas. Besides heating products such as furfural, the profile of the juice concentrates contained no characteristic apple aroma compounds. The ubiquitous occurrence of 3-methyl 1-butanol and its acetate, both known indicators for fermentation processes, seems to be technologically hard to avoid in industrial 'single strength'-juices. The wide range from 0.01 to 2.1 mg/l shows that the yield of 3-methyl 1-butanol can be minimized during fruit juice processing. Legislative regulations to determine limits of the presence of 3-methyl 1-butanol and its acetate in apple juice are necessary. Using distillative recovery of apple juice aroma the slight trend of a depletion of d2HV-SMOW values was observed from apple juice to the corresponding recovery aroma. The correlation of 13C/12C- and 2H/1H-values of 1-hexanol, E-2-hexenal, and E-2-hexenol showed that the authenticity assessment by stable isotope ratio-mass spectrometry is not affected by this negligible effect. The detected traces of 'carry-over' components indicate that contaminations of aroma compounds can occur under normal fruit juice production conditions. However, the combination of determined thresholds and the real amounts of the substances in fruit juices showed that the commercial products are not influenced in their sensory quality. 'Off-flavour' components of orange juices, i.e. a–terpineol and carvon, possess with their relevant amounts an increased potential to affect the taste and odour of commercial products.

National audience ; Noting a certain insensitivity from the underpriviledged populations towards the diet education policies, the local actors seek to set up projects targeting them. It is within this framework that the project called "Everyone their own fruit" has its source, coming from a local authority. In order to carry out the study for the feasibility of the project, we have met families of secondary school students in ZEP. By studying their dietary habits as well as their perception of the actions of diet education, we noted a social differentiation. Nevertheless, the project is approved by the parents, to whom children's diet is essential. We noticed that children's opinion and desires are very often taken into account in diet choices. Moreover, children have a closer connection than their parents to the current standards. We witnessed a few interactions between parents and children which revealed the moralizing role that some children play. ; Constatant une certaine insensibilité des populations défavorisées aux politiques d'éducation alimentaire, les acteurs locaux cherchent à mettre en place des projets les ciblant. C'est dans ce cadre que prend source le projet nommé « Chacun son fruit », émanant d'un Conseil général. Afin de réaliser l'étude de faisabilité du projet, nous avons rencontré des familles de collégiens en ZEP. En étudiant leurs habitudes alimentaires ainsi que leurs perceptions des actions d'éducation alimentaire, nous avons constaté une différenciation sociale. Néanmoins, le projet est plébiscité par les parents, pour qui l'alimentation des enfants est primordiale. Les avis et les envies des enfants sont très souvent pris en compte dans les choix alimentaires. De plus, les enfants ont un rapport plus proche que leurs parents aux normes en vigueur. Nous avons assisté à quelques interactions parents-enfants qui ont dévoilé le rôle de moralisateurs que peuvent jouer certains enfants.

OBJECTIVE: To explain patterns of fruit and vegetable consumption in nine former Soviet Union countries by exploring the influence of a range of individual- and community-level determinants. DESIGN: Cross-sectional nationally representative surveys and area profiles were undertaken in 2010 in nine countries of the former Soviet Union as part of the Health in Times of Transition (HITT) study. Individual- and area-level determinants were analysed, taking into account potential confounding at the individual and area level. SETTING: Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan, Moldova, Russia and Ukraine. SUBJECTS: Adult survey respondents (n 17 998) aged 18-95 years. RESULTS: Being male, increasing age, lack of education and lack of financial resources were associated with lower probability of consuming adequate amounts of fruit or vegetables. Daily fruit or vegetable consumption was positively correlated with the number of shops selling fruit and vegetables (for women) and with the number of convenience stores (for men). Billboard advertising of snacks and sweet drinks was negatively related to daily fruit or vegetable consumption, although the reverse was true for billboards advertising soft drinks. Men living near a fast-food outlet had a lower probability of fruit or vegetable consumption, while the opposite was true for the number of local food restaurants. CONCLUSIONS: Overall fruit and vegetable consumption in the former Soviet Union is inadequate, particularly among lower socio-economic groups. Both individual- and community-level factors play a role in explaining inadequate nutrition and thus provide potential entry points for policy interventions, while the nuanced influence of community factors informs the agenda for future research. ; Acknowledgements: The authors are grateful to all members of the Health in Times of Transition (HITT) Project study teams who participated in the coordination and organization of data collection for this paper. Financial support: The HITT Project was funded by the European Union's 7th Framework Programme (project HEALTH-F2- 2009-223344). The European Commission cannot accept any responsibility for any information provided or views expressed. The contributions of Y.G. and M.S. were partly funded by the Centre for Diet and Activity Research (CEDAR), a UKCRC Public Health Research Centre of Excellence. Funding from the British Heart Foundation, the Economic and Social Research Council, the Medical Research Council, the National Institute for Health Research and the Wellcome Trust, under the auspices of the UK Clinical Research Collaboration, is gratefully acknowledged. The funders had no role in study design, data collection and analysis, decision to publish or preparation of the manuscript. Conflicts of interest: None. Authors' contributions: Y.G. conducted the analyses and drafted the initial manuscript, as well as subsequent revisions. B.R., M.S., L.R. and M.M helped interpret the results, revised the drafts and approved the final manuscript. Ethics of human subject participation: The research was approved by the ethics committee of the London School of Hygiene and Tropical Medicine and was conducted in accordance with the ethical standards laid down in the 1964 Declaration of Helsinki. All persons gave informed consent. ; This is the final version of the article. It first appeared from Cambridge University Press via http://dx.doi.org/10.1017/S1368980015000105

AbstractRetailer‐led food standards are playing an increasingly important role in determining market access globally. These standards are generally interpreted as a mechanism by which retailers have increased their capacity to co‐ordinate and control upstream actors, including farmers and processors. Taking an actor‐oriented approach to determine the various ways in which a group of farmers respond to retailer‐led standards, this study presents empirical detail on the impacts of compliance with retailer‐led standards, including GLOBALG.A.P, on an Australian citrus growers' co‐operative. This study found that while GLOBALG.A.P and similar standards are indeed de facto mandatory requirements for fruit producers, it was not certification to GLOBALG.A.P alone that led to relationships of dependency between producers and retailers. The oligopolistic structure of the retailing sector was found to be equally problematic for producers. This suggests that while GLOBALG.A.P constituted a novel form of value chain governance, it was not a defining feature of the food production system in these chains.