Search Results
Results 251 - 300 of 689
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Isachenko Vladimir - - 2007
Vitrification of laser treated human blastocysts using reduced concentrations of permeable cryoprotectants was carried out by submerging cut standard straws (CSS) into liquid nitrogen. The CSS were made by cutting a standard 0.25 ml straw at an angle of approximately 45 degrees . After laser assisted hatching, 6 day blastocysts ...
Langmaier F - - 2008
Enzymatic hydrolysates of waste collagen proteins (H), from current industrial manufacture (leather, edible meat product casings, etc.) of mean molecular mass 20-30 kDa by a reaction with dialdehyde starch (DAS), produces hydrogels applicable as biodegradable (or even edible) packaging materials for food, cosmetic and pharmaceutical products. Thermo-reversibility of prepared hydrogels ...
Siegrist Michael - - 2007
Nanotechnology is increasingly being employed in the areas of food production and packaging. Public perception will be crucial to the realization of these technological advances. We examined how lay people (N=153) perceive nanotechnology foods and nanotechnology food packaging, and we examined the factors that influence willingness to buy these products. ...
Bray Jeremy W - - 2007
OBJECTIVE: We estimated the strength and direction of the association between product characteristics (beer type, package size, and brand name) and market-area socioeconomic characteristics, and promoted sales of beer in grocery stores. METHOD: Supermarket scanner data from 64 market areas across the United States over 5 years were used to ...
Zhang Yu - - 2007
The efficiency of antioxidant from bamboo leaves on the reduction of acrylamide during thermal processing and optimization of levels of addition of antioxidant from bamboo leaves applied to fried chicken wings are reported. The authors optimized the method of the addition of antioxidant from bamboo leaves to fried chicken wings ...
Arisseto Adriana Pavesi - - 2007
Selected carbohydrate-rich foods available on the Brazilian market (111 samples representing 19 product categories) were analysed for acrylamide content using a liquid chromatography-tandem mass spectrometry method. A limit of detection of 10 microg kg(-1), a limit of quantitation of 20 microg kg(-1) and mean recoveries ranging 100 to 115% were ...
Duffy E - - 2007
There is no set protocol for completing refined exposure assessments of food-packaging migrants in the European Union. One novel method that could be used to provide more realistic exposure assessments and also reduce uncertainty in the exposure estimation could be the use of food consumption surveys that also have packaging ...
Eerola Susanna - - 2007
Sample clean-up and HPLC with tandem mass spectrometric detection (LC-MS/MS) was validated for the routine analysis of acrylamide in various foodstuffs. The method used proved to be reliable and the detection limit for routine monitoring was sensitive enough for foods and drinks (38 microg/kg for foods and 5 microg/L for ...
Dury-Brun Cécile - - 2007
The objective of this work was to study the transfer of four aroma compounds (ethyl butyrate, ethyl hexanoate, cis-3-hexenol, and benzaldehyde) from a solid and complex-flavored food matrix (sponge cake) toward and through packaging films placed in indirect contact during storage in accelerated aging conditions (38 degrees C and 86% ...
Zhang Yu - - 2007
The present study was to demonstrate the efficiency of antioxidant of bamboo leaves (AOB) on the reduction of acrylamide during thermal processing and to summarize the optimal level of AOB applied in potato-based products. Potato crisps and French fries were immersed into different contents of AOB solution, and the frying ...
Nerín C - - 2007
Porapak has been studied as a solid-food simulant in experiments on paper and board packaging. Three samples of paper with different recycled pulp content and surface treatment, and of different grammage and thickness, were used for the studies. Kinetic behaviour from 25 degrees C to 100 degrees C and different ...
Aureli Federica - - 2007
Acrylamide is a food toxicant suspected to be carcinogenic to humans. It is formed in the heat processing of carbohydrate-rich food. A current issue in food safety is whether acrylamide actually represents a risk for human health. At present, available information is insufficient to reach any conclusions. Inter alias, a ...
Sun Cuilian - - 2007
A simple method was developed and validated for the trace determination of 2-isopropylthioxanthone (ITX) in packaged drinks. Samples were extracted from the food matrix using acetonitrile:water (60:40, v/v), and further subjected to clean-up and preconcentration using solid-phase extraction prior to analysis by liquid chromatography-tandem mass spectrometry using multiple reaction monitoring ...
Agulla, K.
The key trends in the food market - health, quality, convenience and safety - will continue to determine what types of packaging are used in future. The crucial challenge for the future will be to reconcile more closely customer requirements with the specific packaging requirements of the individual product. Despite ...
Göbel A - - 2007
The German minimization concept for acrylamide was established as a reaction to the concern caused by the discovery of acrylamide in a wide range of foodstuffs in 2002. It is a pragmatic approach based on a voluntary agreement of all partners involved, governmental organizations as well as the affected industry, ...
Wenzl T - - 2007
The European Commission's Directorate General Joint Research Centre has been collecting data produced by European Union Member States on the acrylamide content of food since 2003. More than 9000 individual data points have been received from official food control laboratories directly or via their Competent Authorities, and from the food ...
Sajiki J - - 2007
The determination of bisphenol A (BPA) and/or bisphenol A diglycidyl ether (BADGE) in foods sold in Japanese markets and in water leached from six epoxy resin cans with similar diameters was carried out using high-performance liquid chromatography (HPLC) with electrochemical detection (LC/ECD), LC-mass spectrometric detection (LC/MS) and LC-tandem mass spectrometric ...
Mojska Hanna - - 2007
The objective of the study was to determine the content of acrylamide in randomly selected samples of potato crisps and French fries using GC/MS/MS. The mean content of acrylamide in tested crisps amounted to 998 microg/kg (range from 352 to 3647 microg/kg) and was almost three times higher than in ...
Zhang Yu - - 2007
This paper investigated the efficiency of antioxidant of bamboo leaves (AOB) and extract of green tea (EGT) on the reduction of acrylamide in fried bread sticks and summarized the optimal levels of two additives. Seven experimental groups including a control group were organized for both of additives. Fried bread sticks ...
Guenther Helmut - - 2007
This paper summarizes the progress made in understanding the formation of acrylamide in coffee, as well as potential reduction strategies, as presented during the joint CIAA/EC workshop on acrylamide, held in Brussels in March 2006. Currently, there are no concrete measures to reduce acrylamide concentrations in roast and ground coffee ...
Konings E J M - - 2007
In March 2006, a joint workshop was organized by the European Commission and the Confederation of EU Food and Drink Industries (CIAA) to discuss current knowledge and achievements in the reduction of acrylamide levels. This paper focuses on the progress made with cereal products. At present, the reduction options available ...
Amrein Thomas M - - 2007
Acrylamide reduction in certain food products is an important issue for both the food industry and academic research institutions. The present paper summarises past and current research on the occurrence and reduction of acrylamide in potatoes, bakery products, almonds, olives and dried fruit. In potatoes, the control of reducing sugars, ...
Zhang Yu - - 2007
The recent report of elevated acrylamide levels in heat processing foods evoked an international health alarm. Acrylamide, an acknowledged potential genetic and reproductive toxin with mutagenic and carcinogenic properties in experimental mammalians, has been found in various heat processing foods. Many original contributions reported their findings on the formation mechanism ...
Rhim Jong-Whan - - 2007
Concerns on environmental waste problems caused by non-biodegradable petrochemical-based plastic packaging materials as well as the consumer's demand for high quality food products has caused an increasing interest in developing biodegradable packaging materials using annually renewable natural biopolymers such as polysaccharides and proteins. Inherent shortcomings of natural polymer-based packaging materials ...
Duffy E - - 2007
There are many initiatives in Europe trying to refine the exposure assessment for food packaging migrants. In the USA, the US Food and Drug Administration (US FDA) uses food consumption and food-type distribution factors to aid the exposure assessment process and generate more realistic estimates of exposure. The present study ...
Durand M L - - 2007
A commonly used plastic plumbing pipe, silane-cross-linked polyethylene (PEX-b according to European standards), was investigated using the Utility Quick Test (UQT), which is a migration/leaching protocol recommended for evaluating taste-and-odour properties of materials prior to installation in distribution systems. After exposure of new PEX pipe to chlorine, monochloramine or no ...
Foot R J - - 2007
The workshop of the European Commission and the Confederation of the Food and Drink Industries of the European Union (CIAA) held in March 2006 in Brussels, Belgium, discussed the key knowledge and achievements in the mitigation of acrylamide. This paper presents the progress made by the potato sector and identifies ...
Saleh Sanaa I - - 2007
Acrylamide is a toxic and potentially cancer causing chemical formed in thermally treated starchy foods. The objective of the present study is to estimate the mean daily dietary intake of acrylamide in Alexandria governorate. A total of 822 subjects (417 males and 405 females) were randomly selected, from different places ...
Vitrac Olivier - - 2007
The contamination risk in 12 packaged foods by substances released from the plastic contact layer has been evaluated using a novel modeling technique, which predicts the migration that accounts for (i) possible variations in the time of contact between foodstuffs and packaging and (ii) uncertainty in physico-chemical parameters used to ...
Grob K - - 2007
Options of taking measures for reducing acrylamide exposure are discussed from the viewpoint of health authorities. To achieve a significant effect on total exposure (without changing eating habits), a substantial reduction must be accomplished for the foods contributing most to total intake. Priority should be given to consumers with high ...
Bjellaas Thomas - - 2007
It has previously been reported that heat-treated carbohydrate rich foods may contain high levels of acrylamide resulting in consumers being inadvertently exposed to acrylamide. Acrylamide is mainly excreted in the urine as mercapturic acid derivatives of acrylamide and glycidamide. In a clinical study comprising of 53 subjects, the urinary excretion ...
Stobiecka Agata - - 2007
Recent findings showing that acrylamide is formed in heat-treated foods rich in asparagine and reducing sugars such as glucose, have accelerated the needs for the development of new analytical methods to determine this potential human carcinogen. Acrylamide forms adduct with hemoglobin (Hb) as a result of the reaction with the ...
Paperiello Carl J - - 2006
Current efforts of the U.S. Nuclear Regulatory Commission (U.S. NRC) to develop rules for the disposition of low-activity solid materials and the outcome of U.S. NRC rulemaking activities in this area since the late 1990's are described. International efforts on the disposition of low-activity solid materials and future plans of ...
Goulas Antonios E - - 2007
Food-grade polyvinyl chloride (PVC) cling-film containing 5.3% (w/w) di(2-ethylhexyl) adipate (DEHA) and 3.0% (w/w) acetyltributyl citrate (ATBC) plasticizers was used to wrap halawa tehineh (halva) samples. Samples were split into two groups and stored at 25+/-1 degrees C. One group was analyzed for DEHA and ATBC content at intervals between ...
Nerín Cristina - - 2006
A new antioxidant active packaging material for food has been designed and developed, consisting of a polypropylene film in which some natural antioxidants have been immobilized. The antioxidant properties of the new material have been tested by using both pure myoglobin and fresh beef steaks. Two different cell configurations (glass ...
Tateo F - - 2006
A series of disposable aluminium foil containers designed for cooking and packaging foods and available on the Italian market were investigated. Using different analytical techniques (near infrared (NIR), High Resolution Gas Chromatography (HRGC), gas chromatography/mass spectrometry (GC/MS)), organic substances used as lubricants in the manufacturing of the containers were detected ...
Hess Philipp - - 2007
The need for reference materials for quality control of analysis of foodstuffs has been stressed frequently. This has been particularly true in the phycotoxins field, where there is a great shortage of both pure calibration standards and reference materials. Worldwide there are very few independent bodies that produce certified reference ...
Deuchande Teresa - - 2006
In this paper we describe the construction and performance of high pressure magic angle inserts made from the polymer PEEK. The inserts were designed to fit inside standard commercial 7 mm magic angle spinning rotors and spin at the maximum frequency of the probe. The sample volume of the inserts ...
Lund K H - - 2006
Migration of one or both formaldehyde and/or melamine monomers was found in seven of ten tested melamine samples bought on the Danish market. The samples were a bowl, a jug, a mug, a ladle, and different cups and plates. No violation of the European Union-specific migration limits for melamine (30 ...
Willard Stacey S - - 2006
Chemotaxis, or cell migration guided by chemical cues, is critical for a multitude of biological processes in a diverse array of organisms. Dictyostelium discoideum amoebae rely on chemotaxis to find food and to survive starvation conditions, and we have taken advantage of this system to study the molecular regulation of ...
Granvogl Michael - - 2006
On the basis of the recent findings that "biogenic amines" can also be formed during thermal food processing from their parent amino acids in a Strecker-type reaction, the formation of 3-aminopropionamide, the biogenic amine of asparagine, was investigated in model systems as well as in thermally processed Gouda cheese. The ...
Ozaki Asako - - 2006
An investigation was undertaken to establish the concentration in paper products of dehydroabietic (DHA) and abietic (AA) resin acids, present in rosin, which are major toxicants of pulp- and paper-mill effluent. Their migration was studied from paper and paperboard products into various food-simulating solvents and the substitute fatty food simulant ...
Siró I - - 2006
The release of alpha-tocopherol from two formulations (with and without complexation with beta-cyclodextrin) of low-density polyethylene (LDPE) film was examined. Specific migration studies were performed at 7.0 +/- 0.5 degrees C using plastic bags filled with 95% ethanol as a fatty food simulant. The amount of complexed and free (non-complexed) ...
Rufián-Henares José A - - 2006
Breakfast cereals are significant contributors to the daily intake of food-derived acrylamide in Western countries. Acrylamide was determined by LC-MS in 60 commercial breakfast cereals marketed in Spain. Several SPE cartridges were evaluated for clarification of the aqueous extract. LOQ was 62 microg/kg . Acrylamide content ranged from < 62-803 ...
Anese Monica - - 2006
This work was addressed to study the secondary shelf life of ground roasted coffee. To this purpose, fresh dark-roasted ground coffee samples were equilibrated at increasing water activity (aw) values up to 0.44 and stored at 30 degrees C for up to 1 month. To simulate home storage conditions, the ...
Limm W - - 2006
Diffusion coefficients of limonene in various linear low-density polyethylene (LLDPE) and low-density polyethylene (LDPE) resins have been determined from sorption data using a thermogravimetric methodology. From these data, one can determine whether polymer synthesis parameters such as the choice of catalytic process or co-monomer result in substantial differences in how ...
Duffy E - - 2006
In the European Union (EU), many assumptions are employed to calculate the intake of migrating chemicals from food packaging. However, very little is known about the actual intake of packaged food, the type of this food and the type of packaging used for this food. The objective of the current ...
Olsson Ivan C - - 2006
The decision to migrate or not is regarded as genetically controlled for many invertebrate and vertebrate taxa. Here, we show that the environment influences this decision. By reciprocally transplanting brown trout (Salmo trutta L.) between two sections in a river, we show that both migratory and non-migratory behaviour can be ...
Kontominas M G - - 2006
Overall migration from a wide range of commercial plastics-based netting materials destined to be used as either meat or vegetable packaging materials into the fatty food simulant isooctane or the aqueous simulant distilled water, respectively, was studied. In addition, sensory tests of representative netting materials were carried out in bottled ...
Duffy E - - 2006
A food-packaging database was developed to provide qualitative information on the types of packaging materials used for foods. Packaging information was collected from a sample of 594 children aged 5-12 years as part of a national children's food survey carried out in Ireland during 2003-04. All the food packaging collected ...
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