Bread-analysis : a practical treatise on the examination of flour and bread / by J. Alfred Wanklyn and W.J. Cooper.

  • Cooper W. J. (William John)
Date:
1886
Catalogue details

Licence: Public Domain Mark

Credit: Bread-analysis : a practical treatise on the examination of flour and bread / by J. Alfred Wanklyn and W.J. Cooper. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

    78/96 (page 66)
    Stomach they are digestod, their structure liein- l.roken down and their substance made to jms into perfect solution. Not only are they mechanically altered, but they undergo great chemical changes being transformed into peptones, and in that shape, passing through the walls of the blood-vessels and entering into the circulation. Albuminoid.'?, and the peptones resulting from them, differ very widely. The albnnn'noid has a vei-y large molcular weight and is a highly colloidal hody. The peptone must have a much smaller molecular weight in- as much as it is diffusible. C'o7idmentx.~'Uni]cv the heading of condiments and stimulants \vc may enumerate the meat-extract known as Liebig's Extract, the various pleasant flavouring ma- terials arising from the action of heat on flesh meat, pleasant vegetable flavouring substances, as well as pepper, nmstard, and spices. These substances contribute in an indirect manner towards the nutrition of the body. Food, as has been jiointed out, docs not nourish so long as it remains in the stomach or in- testines, but only after absorption ; and the manner in which condiments and stimulants contributes toward.^ nutrition is by promoting digestion and absorption. A.s a rule veiy minute quantities of these substances are required in order to accomplish thcii- work, and larger quantities act in a con- trary sense. Under the heading of stimulants, useful in aiding digestion, we ought )iot to omit to name the coinmonest of all, vi/., alcohol, which pla\'s a two-fold part, and in aildition to being IX stiimilant, is a boat giving food, raalciiig with sugar uikI the other carlHilnil.rate.s,