| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: agar is modified by adding a water-soluble reagent in an amount which ensures medium pH 7.1-14. The solution is kept for 0.4-3 hours at temperature 20-90C, followed by cooling and extracting the obtained gel for 1-3 hours at temperature not higher than 20C, after which the agar is purified and dehydrated. ^ EFFECT: invention enables to lower content of sulphate groups and improve quality characteristics of the agar. ^ 5 cl, 1 dwg, 1 tbl, 4 ex |
