As more fibreless processed foods putrefy in the intestines, becoming a feeding ground for harmful bacteria, colonies of acidophilus suffer immensely.
If food were combined improperly, Diamond claimed it caused food to "putrefy and ferment" within the intestinal tract instead of being digested.
In the early process for extracting the oil the livers were allowed to putrefy in wooden tubs, when oils of two qualities, one called "pale oil," and the other "light brown oil," successively rose to the surface and were drawn off.
The habit of allowing their meat to putrefy before regarding it as fit for food, and of encouraging children of tender age to drink to intoxication, accounts for absence of old folk and the heavy mortality which are to be observed among the Muruts of British North Borneo and some of the other more debased tribes of the interior of the island.
The urine should be allowed to putrefy, as in its decomposition a large amount of ammonia is formed, which should then be fixed by sulphuric acid or gypsum; or it may be applied to the growing crops after being freely diluted with water or absorbed in a compost heap. Liquid manures can be readily made from most of the solid manures when required, simply by admixture with water.