| 摘要 |
1294543 Instant tea UNILEVER Ltd 10 Nov 1970 [12 Nov 1969] 53338/70 Heading A2B A spray-dried instant tea powder having a bulk density of 0.045-0.100 gm/ml is obtained by preparing an extract from tea leaf, adding tea pectic substances to the extract, and spray drying. The tea pectic substances may be obtained from spent tea leaves by alkaline extraction at or above pH 9.5 or by acid extraction at about pH 2. |
