A
SECTION A — HUMAN NECESSITIES
  
FOODSTUFFS; TOBACCO
 A23
FOODS OR FOODSTUFFS; THEIR TREATMENT, NOT COVERED BY OTHER CLASSES
 A23

Note(s)

  1. Attention is drawn to the following places:
    C08BPolysaccharides, derivatives thereof 
    C11Animal or vegetable oils, fats, fatty substances or waxes 
    C12Biochemistry, beer, spirits, wine, vinegar 
    C13Sugar industry.  [4] 
  2. Processes using enzymes or micro-organisms in order to:
    1. liberate, separate or purify a pre-existing compound or composition, or to
    2. treat textiles or clean solid surfaces of materials
    are further classified in subclass C12S.  [5]
 A23B
PRESERVING, e.g. BY CANNING, MEAT, FISH, EGGS, FRUIT, VEGETABLES, EDIBLE SEEDS; CHEMICAL RIPENING OF FRUIT OR VEGETABLES; THE PRESERVED, RIPENED, OR CANNED PRODUCTS (preserving foodstuffs in general A23L 3/00; applying food preservatives in packages B65D 81/28)
 A23B 4/00
General methods for preserving meat, sausages, fish or fish products  [2]
 A23B 4/005
·  Preserving by heating  [5]
 A23B 4/01
·  ·  by irradiation or electric treatment  [5]
 A23B 4/015
·  Preserving by irradiation or electric treatment without heating effect  [5]
 A23B 4/02
·  Preserving by means of inorganic salts (apparatus therefor A23B 4/26, A23B 4/32)  [2]
 A23B 4/023
·  ·  by kitchen salt or mixtures thereof with inorganic or organic compounds  [5]
 A23B 4/027
·  ·  by inorganic salts other than kitchen salt or mixtures thereof with organic compounds, e.g. biochemical compounds  [5]
 A23B 4/03
·  Drying; Subsequent reconstitution  [5]
 A23B 4/033
·  ·  with addition of chemicals (A23B 4/037 takes precedence)  [5]
 A23B 4/037
·  ·  Freeze-drying  [5]
 A23B 4/044
·  Smoking; Smoking devices  [5]
 A23B 4/048
·  ·  with addition of chemicals other than natural smoke  [5]
 A23B 4/052
·  ·  Smoke generators  [5]
 A23B 4/056
·  ·  Smoking combined with irradiation or electric treatment, e.g. electrostatic smoking  [5]
 A23B 4/06
·  Freezing; Subsequent thawing; Cooling  [2]
 A23B 4/07
·  ·  Thawing subsequent to freezing  [5]
 A23B 4/08
·  ·  with addition of chemicals before or during cooling  [2]
 A23B 4/09
·  ·  ·  with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature  [5]
 A23B 4/10
·  Coating with a protective layer; Compositions or apparatus therefor  [2]
 A23B 4/12
·  Preserving with acids; Acid fermentation  [2]
 A23B 4/14
·  Preserving with chemicals not covered by groups A23B 4/02 or A23B 4/12  [2]
 A23B 4/16
·  ·  in the form of gases, e.g. fumigation; Compositions or apparatus therefor  [5]
 A23B 4/18
·  ·  in the form of liquids or solids (apparatus therefor A23B 4/26, A23B 4/32)  [5]
 A23B 4/20
·  ·  ·  Organic compounds; Micro-organisms; Enzymes (acid fermentation A23B 4/12)  [5]
 A23B 4/22
·  ·  ·  ·  Micro-organisms; Enzymes  [5]
 A23B 4/24
·  ·  ·  Inorganic compounds  [5]
 A23B 4/26
·  Apparatus for preserving using liquids  [5]
 A23B 4/28
·  ·  by injection of liquids  [5]
 A23B 4/30
·  ·  by spraying of liquids  [5]
 A23B 4/32
·  Apparatus for preserving using solids  [5]
 A23B 5/00
Preservation of eggs or egg products (preserving dough or bakery products A21D)
 A23B 5/005
·  Preserving by heating  [5]
 A23B 5/01
·  ·  by irradiation or electric treatment  [5]
 A23B 5/015
·  Preserving by irradiation or electric treatment without heating effect  [5]
 A23B 5/02
·  Drying; Subsequent reconstitution  [5]
 A23B 5/025
·  ·  with addition of chemicals (A23B 5/03, A23B 5/035 take precedence)  [5]
 A23B 5/03
·  ·  Freeze-drying  [5]
 A23B 5/035
·  ·  Spray-drying  [5]
 A23B 5/04
·  Freezing; Subsequent thawing; Cooling
 A23B 5/045
·  ·  Thawing subsequent to freezing  [5]
 A23B 5/05
·  ·  with addition of chemicals  [5]
 A23B 5/055
·  ·  ·  with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature  [5]
 A23B 5/06
·  Coating eggs with a protective layer; Compositions or apparatus therefor  [5]
 A23B 5/08
·  Preserving with chemicals  [5]
 A23B 5/10
·  ·  in the form of gases, e.g. fumigation; Compositions or apparatus therefor  [5]
 A23B 5/12
·  ·  in the form of liquids or solids  [5]
 A23B 5/14
·  ·  ·  Organic compounds; Micro-organisms; Enzymes  [5]
 A23B 5/16
·  ·  ·  ·  Micro-organisms; Enzymes  [5]
 A23B 5/18
·  ·  ·  Inorganic compounds  [5]
 A23B 5/20
·  ·  ·  Apparatus for preserving using liquids  [5]
 A23B 5/22
·  ·  ·  Apparatus for preserving using solids  [5]
 A23B 7/00
Preservation or chemical ripening of fruit or vegetables  [3]
 A23B 7/005
·  Preserving by heating  [5]
 A23B 7/01
·  ·  by irradiation or electric treatment  [5]
 A23B 7/015
·  Preserving by irradiation or electric treatment without heating effect  [5]
 A23B 7/02
·  Dehydrating; Subsequent reconstitution (dried cooked potatoes A23L 1/216)
 A23B 7/022
·  ·  with addition of chemicals (A23B 7/024-A23B 7/028 take precedence)  [5]
 A23B 7/024
·  ·  Freeze-drying  [5]
 A23B 7/026
·  ·  Spray-drying  [5]
 A23B 7/028
·  ·  Thin layer-, drum- or roller-drying  [5]
 A23B 7/03
·  ·  Drying raw potatoes
 A23B 7/04
·  Freezing; Subsequent thawing; Cooling
 A23B 7/045
·  ·  Thawing subsequent to freezing  [5]
 A23B 7/05
·  ·  with addition of chemicals  [5]
 A23B 7/055
·  ·  ·  with direct contact between the food and the chemical, e.g. liquid N2, at cryogenic temperature  [5]
 A23B 7/06
·  Blanching (machines therefor A23N 12/00)  [3]
 A23B 7/08
·  Preserving with sugars (marmalade, jam, fruit jellies A23L 1/06)
 A23B 7/10
·  Preserving with acids; Acid fermentation
 A23B 7/12
·  ·  Apparatus for compressing sauerkraut
 A23B 7/14
·  Preserving or ripening with chemicals not covered by group A23B 7/08 or A23B 7/10
 A23B 7/144
·  ·  in the form of gases, e.g. fumigation; Compositions or apparatus therefor  [3,5]
 A23B 7/148
·  ·  ·  in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O  [3]
 A23B 7/152
·  ·  ·  in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O  [3]
 A23B 7/153
·  ·  in the form of liquids or solids  [5]
 A23B 7/154
·  ·  ·  Organic compounds; Micro-organisms; Enzymes (acid fermentation A23B 7/10)  [5]
 A23B 7/155
·  ·  ·  ·  Micro-organisms; Enzymes  [5]
 A23B 7/157
·  ·  ·  Inorganic compounds  [5]
 A23B 7/158
·  ·  ·  Apparatus for preserving using liquids  [5]
 A23B 7/159
·  ·  ·  Apparatus for preserving using solids  [5]
 A23B 7/16
·  Coating with a protective layer; Compositions or apparatus therefor (A23B 7/08 takes precedence)  [5]
 A23B 9/00
Preservation of edible seeds, e.g. cereals
 A23B 9/02
·  Preserving by heating  [5]
 A23B 9/04
·  ·  by irradiation or electric treatment  [5]
 A23B 9/06
·  Preserving by irradiation or electric treatment without heating effect  [5]
 A23B 9/08
·  Drying; Subsequent reconstitution  [5]
 A23B 9/10
·  Freezing; Subsequent thawing; Cooling  [5]
 A23B 9/12
·  ·  Thawing subsequent to freezing  [5]
 A23B 9/14
·  Coating with a protective layer; Compositions or apparatus therefor  [5]
 A23B 9/16
·  Preserving with chemicals  [5]
 A23B 9/18
·  ·  in the form of gases, e.g. fumigation; Compositions or apparatus therefor  [5]
 A23B 9/20
·  ·  ·  in a controlled atmosphere, e.g. partial vacuum, comprising only CO2, N2, O2 or H2O  [5]
 A23B 9/22
·  ·  ·  in a controlled atmosphere comprising other gases in addition to CO2, N2, O2 or H2O  [5]
 A23B 9/24
·  ·  in the form of liquids or solids  [5]
 A23B 9/26
·  ·  ·  Organic compounds; Micro-organisms; Enzymes  [5]
 A23B 9/28
·  ·  ·  ·  Micro-organisms; Enzymes  [5]
 A23B 9/30
·  ·  ·  Inorganic compounds  [5]
 A23B 9/32
·  ·  ·  Apparatus for preserving using liquids  [5]
 A23B 9/34
·  ·  ·  Apparatus for preserving using solids  [5]