SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES (chemically synthesised sugars or sugar derivatives C07H; polysaccharides, e.g. starch, derivatives thereof C08B; malt C12C; fermentation or enzyme-using processes for preparing compounds containing saccharide radicals C12P19/00; production of sucrose C13B)

Introduced: September 1968

Description

C13K covers the extraction, isolation, and hydrolytic processing of saccharides derived from natural sources, including the breakdown of naturally occurring di-, oligo-, and polysaccharides into smaller sugar molecules. This classification encompasses technologies for obtaining monosaccharides and oligosaccharides through enzymatic or chemical hydrolysis of starch, cellulose, sucrose, and other biopolymers. Typical inventions include methods for sugar production from agricultural materials, purification techniques, and processes yielding glucose, fructose, maltose, and similar products. Adjacent classes address synthetic saccharide synthesis (C13C) and the initial processing of raw sugar materials (C13B and C13J).

Title

Titles differ between systems:

IPC: SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES

CPC: SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES (chemically synthesised sugars or sugar derivatives C07H; polysaccharides, e.g. starch, derivatives thereof C08B; malt C12C; fermentation or enzyme-using processes for preparing compounds containing saccharide radicals C12P19/00; production of sucrose C13B)

Full Title

Full titles differ between systems:

IPC:

SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES

CPC:

SACCHARIDES OBTAINED FROM NATURAL SOURCES OR BY HYDROLYSIS OF NATURALLY OCCURRING DISACCHARIDES, OLIGOSACCHARIDES OR POLYSACCHARIDES (chemically synthesised sugars or sugar derivatives C07H; polysaccharides, e.g. starch, derivatives thereof C08B; malt C12C; fermentation or enzyme-using processes for preparing compounds containing saccharide radicals C12P19/00; production of sucrose C13B)

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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C13K 1/00 Glucose (separation from invert sugar C13K3/00); Glucose-containing syrups IPC+CPC Available in IPC and CPC
C13K 11/00 Fructose (separation from invert sugar C13K3/00) since 1974 IPC+CPC Available in IPC and CPC
C13K 13/00 Sugars not otherwise provided for in this class since 1974 +3 CPC IPC+CPC Available in IPC and CPC
C13K 3/00 Invert sugar; Separation of glucose or fructose from invert sugar IPC+CPC Available in IPC and CPC
C13K 5/00 Lactose IPC+CPC Available in IPC and CPC
C13K 7/00 Maltose IPC+CPC Available in IPC and CPC