from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. lignin
from the GNU version of the Collaborative International Dictionary of English
- n. See lignin.
from The Century Dictionary and Cyclopedia
- n. Same as lignin.
Sorry, no etymologies found.
The lignone group as it exists in the lignocellulose has no free OH groups, and probably no free aldehydic groups such as would react with the anhydride.
The jute acetate showed the normal reaction with chlorine, and the lignone chloride was dissolved by treatment with sodium sulphite solution.
Under the conditions adopted in dissolving away the chlorinated lignone the original non-benzoated lignocellulose would have yielded a cellulose giving 6 to 7 p.ct. furfural.
The loss of weight due to the elimination of the lignone was 12.7 p. ct.
In reacting with chloride it shows the presence of unsaturated groups, similar to the lignone of the woods.
It will be thus seen that there are no changes of any essential kind in the chemical composition of the bast fibre throughout the life-history of the plant, confirming the conclusion that the 'incrustation' view of lignification is consistent only with the structural features of the changes, and so far as it has assumed the gradual overlaying of a cellulose fibre with the lignone substance it is not in accordance with the facts.
The variations are due to the varying conditions of the digestion of the wood and to corresponding degrees of sulphonation of the original lignone group.
This author considers that beyond the empirical facts established by the above named  very little is yet known in regard to the constitution of the lignone complex.
The process of V.B. Drewson (D.R.P. 67,889) consists in heating with lime under pressure, yielding calcium monosulphite (with sulphate and the lignone complex in insoluble form).
The lignone chloride is removed by sodium sulphite solution, and the residue is a _cellulose benzoate_.