| 摘要 |
Substances of value in plant nutrition are released from plant tissues, exemplified by bran and other cereal offals, by a procedure involving action of a pectinolytic enzyme on the plant tissue, e.g. 5 parts of water to 1 part of ground tissue, filtering the liquid from the residue, further separating the filtrate to a residue and a supernatant liquid rich in active substances, and treating a further batch of the plant tissue with this supernatant liquid. The treatment in liquid with pectinolytic enzyme is for 1 1/2 -2 hours at pH 6-7 and at 20-35 DEG C. In plant treatment, for absorption by the roots or leaves, the active substances may be combined with glycogen, carbon, graphite, lignite. Specification 930,571 is referred to. |
