Zobrazeno 1 - 10
of 23
pro vyhledávání: '"A. L. Whitear"'
Autor:
Anthony L. Whitear
Publikováno v:
Journal of the Institute of Brewing. 97:47-51
Laurence Bishop's contribution to the brewing industry over more than 50 years of research endeavour and committee activities is reviewed. Three research areas — prediction of extract, the effect of turbidity on yeast activity during fermentation a
Autor:
S. L. Whitear, H. J. Leese
Publikováno v:
Reproduction, Fertility and Development. 20:175
Oviduct fluid provides the environment for the gametes and early embryo but little is known about the mechanisms underlying its formation. Components of oviduct fluid have been shown to be present at concentrations different from that in blood, indic
Publikováno v:
Journal of the Institute of Brewing. 83:153-157
The hop lupulin glands, which contain the essential oils and resin acids, can be separated effectively from the bulky and worthless bracts and residues in a mechanical process which avoids solvent contamination. The separation is accomplished in an a
Autor:
A. L. Whitear
Publikováno v:
Journal of the Institute of Brewing. 80:376-379
The meanings of the terms “precision” and “accuracy” are discussed in relation to analyses carried out in brewery laboratories and to specifications which may be drawn up for different analytical attributes of brewing materials. The role of t
Autor:
A. L. Whitear, I. Drew
Publikováno v:
Journal of the Institute of Brewing. 86:269-273
The number of taste tests that can be undertaken by the average flavour profile panel places a severe constraint on the study of flavour stability. The use of fractional factorial designs has been shown to be an effective approach to this problem. In
Publikováno v:
Journal of the Institute of Brewing. 80:68-80
The most complex types of nitrogen compound in beer (here termed “proteoses”) are, when not combined with polyphenols, highly surface active and hence concentrate in the foam. With unhopped beer, the foam is of the “liquid-viscous” type, whic
Publikováno v:
Journal of the Institute of Brewing. 69:303-308
Laboratory investigations of the quality of worts produced from green malt, from mixed grists of green malt and unmalted cereals, and by the action of commercial enzymes on barley starch are described. Green malt alone gives sweet worts which are ver
Autor:
A. L. Whitear, P. R. Ashurst
Publikováno v:
Journal of the Institute of Brewing. 71:46-51
Various autoxidation products of hop resins are described and compared with hard resin fractions. Changes in the resin contents of stored hops and the potential importance of certain hard resin components in the analysis of hops and beer are discusse
Publikováno v:
Journal of the Institute of Brewing. 74:510-515
A rapid spectrophotometric method for the estimation of the isohumulone content of isomerized hop extracts is described. This method has given acceptable reproducibility even in the hands of inexperienced personnel; it also gives results in close agr
Autor:
J. R. Hudson, A. L. Whitear
Publikováno v:
Journal of the Institute of Brewing. 70:24-30
Additional evidence is presented that isohumulone A contains two components and that there are six isohumulones in beer. The significance of methods for the estimation of bitterness in beer is discussed; certain rapid methods give good correlation wi