SU98796A1 - The method of obtaining natural dye from onion peel - Google Patents
The method of obtaining natural dye from onion peelInfo
- Publication number
- SU98796A1 SU98796A1 SU448230A SU448230A SU98796A1 SU 98796 A1 SU98796 A1 SU 98796A1 SU 448230 A SU448230 A SU 448230A SU 448230 A SU448230 A SU 448230A SU 98796 A1 SU98796 A1 SU 98796A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- natural dye
- onion peel
- obtaining natural
- onion
- obtaining
- Prior art date
Links
Landscapes
- Coloring Foods And Improving Nutritive Qualities (AREA)
- Extraction Or Liquid Replacement (AREA)
Description
Существующий способ получени натурального красител из шелухи .Пка заключаетс в том, что измельченную шелуху реичатого лука экстрагируют водой при подогревапии и 96°-ным спиртом.The existing method for producing a natural dye from the husk. The file consists in extracting the chopped husk of onion with water under heating and 96 ° alcohol.
По предлагаемому способу измельченную шелуху после экстракции ее подои отпрессовывают и после просушки на воздухе экстрагируют 9б°-ным спиртом иа холоду до полного извлечени пигмента. Экстракт (|)ильтруют и затем упаривают под иакуумом. Полученный после упаринани остаток высушивают в вакуумсушилке при температуре 40°.According to the proposed method, the crushed husk, after extraction, is dried, and after drying in air, extracted with 9 ° C alcohol and cold until the pigment is completely removed. The extract (|) is sieved and then evaporated under a vacuum. The residue obtained after evaporation is dried in a vacuum dryer at a temperature of 40 °.
Полученные сухие вещества смешивают и измельчают в тонкий порошок , используемый дл окраски гистологических препаратов.The resulting solids are mixed and ground into a fine powder used for staining the histological specimens.
Предмет изобретени Subject invention
Способ получени натурального красител из шелухи лука иутем экстрагировани водой при подогревапии и спиртом, о т л и ч а ю щ и и с тем, что, с целью получени дерного порошкообразного красител , примен емого при изготовлении гистологических препаратов, экстракты фильтруют, уиаривают иод вакуумом при температуре 40°, а затем полученные сухие вео,ества растирают в порошок.The method of obtaining a natural dye from onion peel and by extraction with water under heating and alcohol, so that, in order to obtain a nuclear powder dye used in the manufacture of histological preparations, the extracts are filtered and vaporized with a vacuum at a temperature of 40 ° C, and then the resulting dry matter is ground to powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU448230A SU98796A1 (en) | 1952-11-20 | 1952-11-20 | The method of obtaining natural dye from onion peel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU448230A SU98796A1 (en) | 1952-11-20 | 1952-11-20 | The method of obtaining natural dye from onion peel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU98796A1 true SU98796A1 (en) | 1953-11-30 |
Family
ID=48373166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU448230A SU98796A1 (en) | 1952-11-20 | 1952-11-20 | The method of obtaining natural dye from onion peel |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU98796A1 (en) |
-
1952
- 1952-11-20 SU SU448230A patent/SU98796A1/en active
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