摘要:

Six tanker‐mounted milk sampling devices (called ‘samplers’) were evaluated by comparing the samples taken by them with those taken manually from the same milk supplies by trained operators. The samplers under test, although of different design, transferred the milk from the tanker milk line directly to the sample bottle at a point near the milk pump. The sampling rate was adjusted before each operation to ensure a fixed sampling rate from the complete supply and provide a standard sample size. When sampling for compositional quality (per cent fat) from refrigerated farm bulk milk tanks the mean difference (bias) between sampler and manual control values ranged from 0.003 to 0.018, while the standard deviation of individual differences (sampler ‐ control) ranged from 0.043 to 0.088. When sampling for hygienic quality the mean difference (bias) between sampler and control samples for the standard plate count (expressed as log10) ranged from 0.026 to 0.39, while the SD of individual differences ranged from 0.11 to 0.49.It is concluded that with correct installation and operation the sampling devices tested are satisfactory for sampling producer milk supplies for compositional quality but not all are suited for sampling for hygienic quality. However, with minor adjustment in design or operation, in some cases performance may be i

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00581.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

A method has been developed for increasing the yield of Cheddar cheese by as much as 7.5% by the incorporation of denatured whey protein in curd. The process effectively eliminates the development of intense bitter off‐flavours which are generally associated with the production of cheese from acidified milk. Although the manufacturing procedure produces cheese with acceptable Cheddar flavour, the development of high quality Cheddar flavour is impair

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00582.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Probably the best way to illustrate the problems of funding for an independent dairy is to give a brief history of our own business which is a very small one by modern standards. Larger independent dairies will encounter quite different problems.

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00583.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Deposits formed in different sections of a pilot‐scale plant during ultra‐high temperature (UHT) processing of milk were studied over a 12‐month period. A twofold range in efficient process run time was found. Deposits formed in the lower temperature (80–110°C) section at a constant rate, irrespective of milk composition. The run time was determined almost entirely by deposits formed in the steam‐heated section (110–140°C) and these varied greatly in composition and rate of formation throughout the year. To increase run time in commercial practice it is suggested that attempts should be made to reduce mineral deposition in the high temperature section

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00584.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

Out of 210 strains ofStreptococcus cremorisandStreptococcus lactisscreened, 35 were suitable for inclusion in multiple strain starters for Cheddar cheese. The use of various combinations of these 35 strains and bacteriophage‐insensitive mutants isolated from some of them as cheese starters over six seasons is described. All cheese graded well for body, texture and flavour, with<1% being downgraded due to starter failure. The system is now being used in all Cheddar cheese plants in Ireland producing ˜60,000 tonnes a year. The problems encountered in phage monitoring are also discuss

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00585.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

摘要:

This paper deals with the contribution that the Hannah Research Institute can and does make to research and development for dairy foods. It covers the source of funding of the research programme and details the nature of the research carried out. The contribution that the institute has made in catalysing increased liaison with industry is noted. The ability of the institute to undertake research either partially or completely funded by industry is discussed. In the year of its Diamond Jubilee, the institute faces the future, and the changes that future will bring, with confidence.

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00586.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00587.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00588.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY

ISSN:1364-727X    

DOI:10.1111/j.1471-0307.1988.tb00591.x

出版商:Blackwell Publishing Ltd    

年代:1988

数据来源: WILEY