Search PubMed⌕ Search

SEARCH · Search PubMed

Results for “CODEX”

Search indexed PubMed citations on genomics, clinical trials, systematic reviews and public health. Explore titles, authors and supplied subject terms, then open the PubMed record.

Quote a phrase for an exact phrase match. Source license links do not imply unrestricted reuse.

389 records · Page 22Linked to original sources
PubMedDate not supplied

Monitoring of pesticide residues in human milk, soil, water, and food samples collected from Kafr El-Zayat Governorate.

Pesticide residues in human milk and environmental samples from Kafr El-Zayat Governorate in Egypt were analyzed. This governorate is located near one of the biggest pesticide factories in Egypt. Organochlorine and organophosphorus pesticides were monitored, including those that have been prohibited from use in Egypt. Human milk samples (31 samples) from Kafr El-Zayat were compared with 11 samples collected from Cairo. Data were compared with results from studies performed in 1987 and 1990. The present study showed that aldrin and dieldrin, heptachlor and heptachlor epoxide, and endrin residues have been eliminated from human milk. Estimated daily intakes (EDIs) of DDT complex and gamma-HCH by breast-fed infants in Kafr El-Zayat were 85.96 and 3.1% of the respective acceptable daily intakes (ADIs). beta-HCH residues showed an increasing pattern, especially in human milk samples from Cairo. DDT complex and HCH isomers in orange, spinach, lettuce, potatoes, and clover samples ranged from undetectable to very low concentrations. Higher levels of DDT and HCH were detected, but aldrin, dieldrin, endrin, and the heptachlors were not detected in food of animal origin. Residues in fish samples were below maximum residue limits established by some developed countries. Those in animal milk samples approached the extraneous residue limits of the Codex Committee on Pesticide Residues. HCH residues in soil were negligible, but DDT residues in soil were somewhat higher. Among water samples, groundwater samples had the highest residues of HCHs and DDTs, followed by Nile River water and then tap water. However, the organochlorine pesticide residues were found at concentrations below the maximum allowable limits set by the World Health Organization for drinking water. Among 12 organophosphorus pesticides monitored as parent compounds, dimethoate, malathion, methamidophos, and chlorpyrifos residues were detected in low concentrations in soil samples from a pesticide factory. No organophosphorus pesticide residues were found in plant samples, except for very low residues of dimethoate in an orange sample. Water samples were devoid of organophosphorus residues as parent compounds.

Animals↗
PubMedDate not supplied

Organochlorine and organophosphorus pesticide residues in food from Egyptian local markets.

A market basket survey was conducted to monitor organochlorine and organophosphorus pesticide residues in potatoes, citrus fruits, and fish collected from local Egyptian markets. Maximum Residue Limits (MRLs) of the Codex Committee on Pesticide Residues for gamma-hexachlorocyclohexane (HCH) in potatoes were exceeded in 8 samples and for DDT in 2 samples. The aging of HCH and DDT indicated a recent use of both pesticides during the potato storage period between cultivation seasons. However, such use is illegal because HCH mixture isomers (gammaxane) and DDT have been officially prohibited from agricultural use in Egypt since 1980. The highest residue levels of fenitrothion (3.8 ppm) in potatoes may be due to its repeated use before and after harvest. No organochlorine pesticide residues were found in citrus fruits. None of the detected organophosphorus pesticides exceeded their MRLs. HCH and DDT residue limits were exceeded in 5 and 7 fish samples, respectively, collected from 12 markets throughout the country. The heptachlor MRL was violated in only one fish sample (3.9 ppm).

Chromatography, Gas↗
PubMedDate not supplied

[Epilepsy, eponyms and patron saints (history of Western civilization)].

From a historic point of view, epilepsy and its eponyms were in an ontogenetic symbiosis throughout their history. Epilepsy is a disease with a history of eponyms presenting the frame of mind of both streetwise as well as skilled "authors" about its origin and nature. From ancient times the names for epilepsy, archetypal Hippocratic disease, just as rich in number as varied in their implication, reflected the local folkways of thinking. In this article we briefly presented more than 50 eponyms and patrons of epilepsy. As the source of information we used both the apocryphal, canonical and hagiographic as well as heretic literature, legends and iconography from the Middle Ages of domestic and foreign origin. Pre- and post-Hippocratic era, apart from stemming from the oldest written medical sources, point to the position that the disease had organic origin located in the brain. The period of Rome adopted the attitudes set by Galen which remained en vogue throughout the emerging Middle Ages and Renaissance. These eras generated new eponyms which reflected a downfall in the manor, stating that the disease is the consequence of supernatural forces. In the "Age of darkness" eponyms for epilepsy reflected more the relation of men to the Nature than to the disease or a sick man; this is evidenced through the generation of number of patrons for the disease. The most famous patron of patients with epilepsy was St. Valentine (after conversion from pagandom he died in Rome as a martyr, c. 270). He was allotted a patronage either due to the phonic resemblance of his name with the (past participle of the) verb "fallen"-as Martin Luther claimed, or due to a cure of epilepsy of the son of a Roman rhetor who built for him a chapel in which he continued to cure the sick. The emergence of a flamboyant personality of Paracelsus on the historic scene of the XVI century represents a less successful attempt to revoke the way of thinking set by the old Greek doctors; however, it brought about the precipitous decay of attitudes that started with Romans and inaugurated the way of thinking characteristic of Renaissance and the ages thereafter. Serbian literature of the Middle Age was strongly impacted by influences that fanned from Italy (Salerno) and south France (Montpellier), reflecting the attitudes of medical schools and universities prevailing at that time Europe. The name [symbol: see text] from Hilandar Medical Codex No 517 (XV-XVI century) is obviously taken from Byzantine medicine, which was founded on the works of Hippocrates, Galen and Dioscurides. It came down to us through the Serbian folk Byzantine codices named "latrosophia of Hilandar", preserved mostly from the author Michail Pselos (XI century). On the other hand, the name [symbol: see text] or morbus magnus, reflects its Roman origin. The name [symbol: see text] meaning fainting, loss of consciousness or syncope, stems from the same source. The name [symbol: see text] designated epileptic disease in Serbian monks, monasteries probably being the only niche where epileptics could find refuge. Children's epilepsy or convulsions are expressed as [symbol: see text] No mention is found of epileptic status except for the notion [symbol: see text] meaning "to be without consciousness for a longer period of time'; it does not, however, refer directly to epilepsy or convulsions. It is worthy noting that already in the XIV century Serbs had their medical literature translated to their own language, and were the only one of all Slavic peoples that did so. Nevertheless, both apocryphal and canonical, as well as consecrated medicine were based on magic, astrology and occultism. The magic formulas used in Middle Age Serbia for the cure of epileptics as well as sick in general, were basically irrational; still, as a trace of its descension they contained unintelligible words of the eastern origin (Greek, Persian or Jewish). (ABSTRACT TRUNCATED)

Epilepsy↗
PubMed1997

[Importance of the evaluation of food consumption in the risk of exceeding the permissible daily doses for poisons potentially contained in food].

The Codex Alimentarius in its General Principles committee proposes the definitions of risk assessment and risk management linked to ingestion of food additives and food contaminants. Moreover, three European directives imply for all member states an evaluation of food additives intakes by general population and by possible "at risk groups of consumers". This work is conducted in the general case of European Scientific Cooperation and is coordinated by United-Kingdom. This paper describes the French approach, using a step-by-step procedure to evaluate food additives consumption. It emphasizes the importance of scientific works in this field of research to obtain french datas about french consumptions.

Eating↗
PubMed1997

[Food irradiation with ionizing radiation; an overview].

Irradiation of food in the Netherlands may only be performed by a company that works according to the (Dutch) law on nuclear energy. Irradiation is used to reduce the number of pathogenic and spoilage micro-organisms in food. Thus the use of preservatives can be diminished. The use of this technique for the decontamination of food is sustained by the FAO/WHO. Codex Alimentarius Committee and other organisations like the Dutch Public Health Council. It should be accepted world wide and used in every country. Irradiation of food is at the moment allowed in 38 countries and practically performed in 28 countries. Gamma radiation from the cobalt-60 isotope is the commonly used source of radiation. The treatment causes in most foodstuffs no organoleptic changes. On the other hand, organoleptic deteriorations provoked by micro-organisms rest unchanged by the treatment. An inferior lot can not be 'irradiated' into an impeccable food. In the Netherlands it is only allowed to irradiate foodstuffs mentioned in the (Dutch) Irradiated Food Products Act which-is part of the (Dutch) Food and Commodities Act.

Food Irradiation↗
PubMed1997

Establishment of microbiological safety criteria for foods in international trade. International Commission on Microbiological Specifications for Foods.

Microbiological safety is achieved by applying good hygienic practices throughout the food chain, "from farm to fork". Governmental food control is traditionally based on inspection of the facilities where foods are handled, and on testing food samples. Testing is usually applied to imported foods, when no information concerning the safety of a consignment is available. The microbiological safety is judged by means of microbiological criteria. Such criteria should, in the context of the WTO/SPS measures, be scientifically justified, and established according to the principles described by the Codex Alimentarius. However, microbiological testing is not a very reliable tool for consumer protection; the emphasis is currently shifting to the application of food safety management tools such as the Hazard Analysis Critical Control Point system (HACCP).

Food Contamination↗
PubMed1997

Improving the safety of street-vended food.

An integrated plan of action for improving street food involving health and other regulatory authorities, vendors and consumers should address not only food safety, but also environmental health management, including consideration of inadequate sanitation and waste management, possible environmental pollution, congestion and disturbances to traffic. However, WHO cautions that, in view of their importance in the diets of urban populations, particularly the socially disadvantaged, every effort should be made to preserve the benefits provided by varied, inexpensive and often nutritious street food. Therefore, authorities concerned with street food management must balance efforts aimed at reducing the negative aspects on the environment with the benefits of street food and its important role in the community. Health authorities charged with responsibility for food safety control should match risk management action to the level of assessed risk. The rigorous application of codes and enforcement of regulations more suited to larger and permanent food service establishments is unlikely to be justifiable. Such rigorous application of codes and regulations may result in disappearance of the trade with consequent aggravation of hunger and malnutrition. Moreover, most codes and regulations have not been based on any systematic identification and assessment of health hazards associated with different types of foods and operations as embodied in the HACCP approach which has been recognized by Codex as the most cost-effective means for promoting food safety. WHO encourages the development of regulations that empower vendors to take greater responsibility for the preparation of safe food, and of codes of practice based on the HACCP system.

Food Contamination↗
PubMedDate not supplied

Survey of organochlorine pesticide residues in milk in Hong Kong (1993-1995).

A survey was conducted from 1993 through 1995 to monitor organochlorine pesticides and their metabolite residues in milk available in local Hong Kong markets. Of 252 samples analyzed, including pasteurized milk, fresh milk, and raw milk, 42 contained organochloride pesticide residues at levels exceeding the Extraneous Maximum Residue Limits of the Codex Committee on Pesticide Residues. DDE and HCH isomer levels were substantially higher than those found in a 1984-1987 survey, probably because the source of cow's milk has shifted from local dairy industries to mainland China over the past decade. Although organochlorine pesticides such as DDT and HCH have been banned in China since 1983, residues of such compounds may still persist in the environment and cause contamination through the food chain.

Animals↗
PubMed1997

[Cold pressed oils].

In recent years the interest in cold pressed oils has increased. In the Polish market, besides a wide assortment of imported products, Polish oils, mainly rapeseed oil, are also ever more frequently available. Cold pressed oils are used in food and pharmaceutical industry and also in the production of cosmetics. The production of cold pressed oils is simple and the investments for it are low. A limitation of the use of this method is low efficiency of the process (6-15% of oil remains in the pressed residues). For obtaining of proper oil it is indispensable to use ripe, clean, non-damaged and correctly stored seeds. Moreover, the conditions and parameters of the production and storage are important, especially the temperature and duration of pressing. The quality of oil is reduced at higher temperatures. At the temperatures below 40 degrees C the process yields oil of good quality permitted for consumption. The quality and the durability of the obtained oil depend on many factors, among them on the composition of fatty acids, the conditions of production and storage, on the presence of prooxidants and antioxidants. The analogue of the Polish cold pressed oil may be "cold pressed oil" and "virgin oil" the definitions and properties of which were proposed at the 21st Session of the Committees for Codex Alimentarius for Fats and Oils of the FAO/WHO (London, 1993).

Brassica↗
PubMedDate not supplied

A precollaborative study of weight determination methods for quick frozen shrimp.

A precollaborative study compared the accuracy and precision of official AOAC methods with other selected methods for determining net weight of IQF-glazed shrimp and block-glazed shrimp, assessed the ruggedness of the methods with respect to changes in the levels of the factors under study, and selected candidate methods for use in a collaborative study. Methods tested for determining deglazed (frozen) net weight of IQF-glazed shrimp were (1) AOAC Method 963.18 and (2) the Water Bath Dip Method. Methods tested for determining thawed net weight of IQF-glazed shrimp were (1) AOAC Method 967.13, (2) Modified AOAC Method(mnb) 967.13, (3) Modified AOAC Method(pb) 967.13, (4) the Codex Method, (5) the Air Thaw Method, and (6) Modified AOAC Method 963.18. The same methods except Modified AOAC Method 963.18 were tested for determining thawed net weight of block-glazed shrimp. A total of 864 0.45 kg (1 lb), 0.90 kg (2 lb), and 1.35 kg (3 lb) IQF-glazed shrimp test samples and 234 2.25 kg (5 lb) block-glazed shrimp test samples were collected. During sample preparation, test samples were subjected to either water with or without sodium tripolyphosphate (STP). During deglazing (IQF-glazed shrimp only) and/or thawing, test samples were allocated in a factorial design to assess the effects of STP presence (no STP and STP), sieve mesh sizes (2.83 and 2.38 mm; 0.11 and 0.09 in.), and sieve diameters (20 and 30 cm; 8 and 12 in.). During weighing, test samples were further allocated to a sequence of weighing procedures designed to assess the effects of using sieve weights (dry and wet) in combination with paper towel use (no and yes) and tared pan weights when calculating determined net weights. On the basis of the results of this precollaborative study, Modified AOAC Method(pb) 967.13 and the Air Thaw Method seem to be the best methods to determine net weight of IQF-glazed and block-glazed shrimp. Therefore, to validate method choices in the collaborative study, the authors recommend analysis of IQF-glazed shrimp and block-glazed shrimp test samples, each prepared with or without STP, by Modified AOAC Method(pb) 967.13 and the Air Thaw Method. To fulfill AOAC requirements, IQF-glazed shrimp and block-glazed shrimp test samples, each prepared with or without STP, must be analyzed by official methods: AOAC Method 963.18 (IQF-glazed shrimp only) and AOAC Method 967.13. During testing, sieve mesh size will be either 2.83 or 2.38 mm (0.11 or 0.09 in.), sieve diameter will be limited to 30 cm (12 in.), and weighing procedure will be limited to tared pan.

Animals↗
PubMedDate not supplied

Routine analysis of proteins by Kjeldahl and Dumas methods: review and interlaboratory study using dairy products.

The Kjeldahl and Dumas (combustion) methods were compared in 11 laboratories analyzing samples of milk, skim milk powder, whole milk powder, whey protein concentrate, infant formula, casein, caseinate, 2 reference compounds (glycine and EDTA), and a secondary reference skim milk powder. The comparison was conducted by using international standards where applicable. Overall means were 8.818 g N/100 g by the Kjeldahl method and 8.810 g N/100 g by the Dumas method. No evidence was found for a consistent bias between methods that may be of concern in the trading of dairy produce. A review of more than 10 related trials revealed a lack of consensus in the bias between the 2 methods, suggesting that differences in methodology and sources of systematic error may be contributors. For samples containing > 2 g N/100 g, the Dumas relative repeatability and reproducibility standard deviations were consistently about 0.35 and 0.75%, respectively, whereas the corresponding Kjeldahl values declined generally with N content and were significantly larger. The Dumas precision characteristics may be due to the dominance of Leco analyzers in this trials, and in most other recent trials, rather than an inherent method attribute. Protein determination methods for dairy products need to be reviewed and updated. The Dumas method needs Codex Alimentarius status as a recognized test method.

Animals↗