ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00321.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00322.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00323.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00324.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00325.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

摘要:

SummaryThe current interest in extending the shelf life of ‘fresh’ foods and the upward trend of food poisoning make food irradiation an important additional technology. Used as a ‘pasteurising’ process it is remarkably gentle — as yet there is no generally applicable method of detecting that it has occurred. It does not make food radioactive, and intensive research studies have not shown any toxic effects associated with the process. Because it is very gentle compared to heating processes, it does not destroy bacterial toxins so that it cannot make spoiled food safe or palatable. Some losses of vitamins occur as in all methods of food preparation and processing. There are enormous advantages both for the manufacturer and the consumer in the controlled application of food irradiation which on balance, are of greater benefit than the minor disadvantage of nutrient losses comparable to current processin

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00326.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

摘要:

SummaryAthletes require appropriate body composition, power to move and stamina. The paper discusses the role of “good nutrition” in relation to these objectives during training and prior, during and after the event, emphasising the basic principles invol

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00327.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

摘要:

SummaryComputers can be used for a wide range of educational and research purposes in addition to the well‐known function as a rapid means of calculating nutrient intakes. The paper describes an example whereby data are entered using an interactive program which is operated by the use of self‐explanatory commands and provides on‐line help facilities. When data have been checked and basic nutritional calculations performed, the data can be stored and used for the analysis of the frequency and distribution of foods and meals, the variety of the diet and the food habits of different groups of the population. The information gathered can be useful in the construction of nutrition education programmes and will even give dietary a

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00328.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

摘要:

SummaryWhen meat or fish is cooked, a number of mutagenic pyrolysis products may be formed. The amounts produced depend on the type of food and the cooking conditions used. More mutagenic activity is associated with the cooking of muscle protein than with organ meat such as liver and kidney. Grilling and frying, because of the higher surface temperatures generated, produce more mutagenic activity in meat than do other methods of cooking. The quantities of mutagens formed, even by frying, are very small (about 20ug/kg), but they are, nevertheless, a cause for concern because these compounds are amongst some of the most potent mutagens known. Furthermore, they bind to DNA in vivo and, when fed to rats and mice, induce tumours in various organs, including liver and the intestine. However evidence is accumulating that other dietary components can influence the genotoxic activity of the ‘cooked food mutagens’. For example, dietary fibre reduces the activity of the compounds in mice, whereas feeding quercetin, a flavonoid found in many vegetables, increases the mutagenic activity in v

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00329.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY

ISSN:1471-9827    

DOI:10.1111/j.1467-3010.1989.tb00330.x

出版商:Blackwell Publishing Ltd    

年代:1989

数据来源: WILEY