On the Ultimate Composition of Simple Alimentary Substances, with Some Preliminary Remarks on the Analysis of Organized Bodies in General

14/06/1827 • 10:22:42

William Prout publishes On the Ultimate Composition of Simple Alimentary Substances, with Some Preliminary Remarks on the Analysis of Organized Bodies in General https://royalsocietypublishing.org/doi/10.1098/rstl.1827.0027

 

three great classes, namely, the saccharine, the oily, and the albuminous

Saccharine - those that contain hydrogen and oxygen in the same proportion as water. 

Finds that sugar is carbon and hydrogen in various proportions. 

“sugar of diabetic urine” or “diabetic sugar”  = glucose

“sugar of starch” is sugar made from starch from sulfuric acid (see https://www.google.com.au/books/edition/The_Encyclopaedia_Britannica_Or_Dictiona/EVlBAAAAcAAJ?hl=en&gbpv=1&dq=%22sugar+of+starch%22&pg=PA473&printsec=frontcover) Encylopedia Brittanica, Chemistry section. 


 starch he considered “merorganised” (an invented term) sugar - ie having some minute other compounds preventing it from crystallising. 

Various scientists - eg MM. Ga y Lussacand Th ena r dstate that they found it to contain as much as 43*55 per cent, of carbon ; while Dr. Ureinforms us that he only found 38*55 per cent, are tryin to find what elements exist in organic compounds. 

He also notes that “lignin” or “woody fibre” (now what we would call fibre also contains hydrogen and oxygen in the same quantities as in water. “Messrs. Ga y Lussacand Th en a r d”

0 comments

Comment
No comments avaliable.

Author

Info

Published in 14/05/2022

Updated in 14/05/2022

All events in the topic Carbohydrates:


01/01/1815 • 20:53:38On the transformation of starch to sugar.
01/01/1851 • 21:19:51Elements of physiology
14/05/1801 • 21:24:38A Practical Treatise on Diet
14/05/1879 • 22:01:54A Text-Book of Physiology
01/01/1837 • 22:15:08Peligot discovers glucose and it is named
01/01/1874 • 22:34:28A Treatise on Food and Dietetics
01/01/1894 • 22:39:27The physiology of the carbohydrates
01/01/1857 • 22:51:19Elements of Chemistry (part 3, organic)
01/01/1857 • 22:58:42Discovery of glycogen
10/12/1869 • 10:50:21British Corn Flour adBritish Corn Flour ad
15/12/1875 • 10:58:38Dr. Hime on the Philosophy of FoodDr. Hime on the Philosophy of Food
01/01/1856 • 20:19:52Manual of chemical physiology
01/01/1811 • 20:42:08Starch turned into starch sugar
01/01/1844 • 20:48:16Carbohydrates named
01/01/1810 • 20:55:33Carbohydrate group defined