FIELD: food-processing industry.
SUBSTANCE: method involves determining content of extractive substances, ash and caffeine in coffee sample by extracting coffee sample with boiling distilled water; bringing extract to predetermined dilution extent; measuring its light transmission within wavelength range of 200-360 nm; calculating on the basis of resultant data qualitative factors by predetermined dependences.
EFFECT: reduced labor intensity owing to reduced number of series tests.
3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR DETERMINATION OF TEA QUALITY | 2003 |
|
RU2256175C2 |
| METHOD FOR DEFINITION OF CAFFEINE CONTENT IN TEA AND COFFEE | 2009 |
|
RU2404428C1 |
| METHOD FOR DETERMINING OF TOBACCO PROCESS PARAMETERS | 2003 |
|
RU2250452C2 |
| METHOD OF DETERMINATION OF STARCH CONTENT IN RAW MATERIAL USED FOR ALCOHOL MANUFACTURING | 0 |
|
SU996936A1 |
| CAFFEINE QUANTITATIVE DETERMINATION METHOD | 0 |
|
SU1133514A1 |
| METHOD OF DETERMINING THE QUANTITY OF MEAT IN ARTICLES MADE OF MINCED MEAT WITH ADDITIVES | 0 |
|
SU1446544A1 |
| METHOD OF OBTAINING THIN ANTI-REFLECTIVE COATINGS BASED ON MESOPOROUS SILICON DIOXIDE BY SOL-GEL METHOD IN PRESENCE OF SINERGISTIC BINARY SYSTEM: NON-IONOGENIC SAS-OLIGOESTERS BASED ON ETHYLENE OXIDE OR PROPYLENE OXIDE | 2010 |
|
RU2466948C2 |
| METHOD FOR DETERMINING YIELD OF SOLUBLE COMPONENTS | 0 |
|
SU1651205A1 |
| 0 |
|
SU1781602A1 | |
| COFFEE BEVERAGE COMPOSITION | 2005 |
|
RU2354126C2 |
