| slovo | definícia |
C6H10O5
(gcide) | Starch \Starch\, n. [From starch stiff, cf. G. st[aum]rke, fr.
stark strong.]
1. (Chem.) A widely diffused vegetable substance found
especially in seeds, bulbs, and tubers, and extracted (as
from potatoes, corn, rice, etc.) as a white, glistening,
granular or powdery substance, without taste or smell, and
giving a very peculiar creaking sound when rubbed between
the fingers. It is used as a food, in the production of
commercial grape sugar, for stiffening linen in laundries,
in making paste, etc.
[1913 Webster]
Note: Starch is a carbohydrate, being the typical amylose,
C6H10O5, and is detected by the fine blue color given
to it by free iodine. It is not fermentable as such,
but is changed by diastase into dextrin and maltose,
and by heating with dilute acids into dextrose. Cf.
Sugar, Inulin, and Lichenin.
[1913 Webster]
2. Fig.: A stiff, formal manner; formality. --Addison.
[1913 Webster]
Starch hyacinth (Bot.), the grape hyacinth; -- so called
because the flowers have the smell of boiled starch. See
under Grape.
[1913 Webster] |
| | podobné slovo | definícia |
C6H10O5n
(gcide) | Amylose \Am`y*lose"\, n. (Chem.)
One of the starch group (C6H10O5)n of the carbohydrates;
as, starch, arabin, dextrin, cellulose, etc.
[1913 Webster]Cellulose \Cel"lu*lose`\, n. (Chem.)
The substance which constitutes the essential part of the
solid framework of plants, of ordinary wood, cotton, linen,
paper, etc. It is also found to a slight extent in certain
animals, as the tunicates. It is a carbohydrate,
(C6H10O5)n, isomeric with starch, and is convertible into
starches and sugars by the action of heat and acids. When
pure, it is a white amorphous mass. See Starch,
Granulose, Lignin.
[1913 Webster]
Unsized, well bleached linen paper is merely pure
cellulose. --Goodale.
[1913 Webster]
Starch cellulose, the delicate framework which remains when
the soluble part (granulose) of starch is removed by
saliva or pepsin. --Goodale.
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