|  | A |
SECTION A — HUMAN NECESSITIES

AGRICULTURE

|  | A21 |
BAKING; EDIBLE DOUGHS

|  | A21D |
TREATMENT, E. G. PRESERVATION, OF FLOUR OR DOUGH, E. G. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF

|  | A21D 2/00 |
Treatment of flour or dough by adding materials thereto

|  | A21D 2/00 |
Note(s) A substance is always indexed in the last appropriate place

|  | A21D 2/02 |
· | by adding inorganic substances

|  | A21D 2/04 |
· · | oxygen; oxygen-generating compounds, e.g. ozone, peroxides

|  | A21D 2/06 |
· · | reducing agents

|  | A21D 2/08 |
· | by adding organic substances

|  | A21D 2/10 |
· · | hydrocarbons

|  | A21D 2/12 |
· · | halohydrocarbons

|  | A21D 2/14 |
· · | organic oxygen compounds

|  | A21D 2/16 |
· · · | fatty acid esters

|  | A21D 2/18 |
· · · | carbohydrates

|  | A21D 2/20 |
· · · | peroxides

|  | A21D 2/22 |
· · · | ascorbic acid

|  | A21D 2/24 |
· · | organic nitrogen compounds

|  | A21D 2/26 |
· · · | proteins

|  | A21D 2/28 |
· · | organic sulphur compounds

|  | A21D 2/30 |
· · | organic phosphorus compounds

|  | A21D 2/32 |
· · · | phosphatides

|  | A21D 2/34 |
· · | animal material

|  | A21D 2/36 |
· · | vegetable material

|  | A21D 2/38 |
· · · | seed germs; germinated cereals; extracts thereof

|  | A21D 2/40 |
· | Apparatus for the chemical treatment of flour or dough

|  | A21D 4/00 |
Preserving flour or dough by storage in an inert atmosphere

|  | A21D 6/00 |
Other treatment of flour e.g. cooling, irradiation, heating

|  | A21D 8/00 |
Methods for preparing dough and for baking (Fulltext... Hierarchy... Expanded...A21D 2/00 takes precedence)

|  | A21D 8/02 |
· | Methods for preparing dough; Treating dough prior to baking (machines or equipment for making or processing dough Fulltext... Hierarchy... Expanded...A21C)

|  | A21D 8/04 |
· · | treating dough with micro-organisms or enzymes

|  | A21D 8/06 |
· | Baking processes (ovens Fulltext... Hierarchy... Expanded...A21B)

|  | A21D 8/08 |
· | Prevention of sticking, e.g. to baking plates

|  | A21D 8/10 |
· · | using dusting powders

|  | A21D 13/00 |
Bakery products

|  | A21D 13/02 |
· | Bread from whole meal, rough-ground grain or bran

|  | A21D 13/04 |
· | Bread from materials other than rye or wheat

|  | A21D 13/06 |
· | Dietetic and/or health-promoting bread

|  | A21D 13/08 |
· | Pastry, e.g. cake, biscuit, puff-pastry

|  | A21D 15/00 |
Preserving bakery products; Improving e.g. refreshing