| 摘要 |
1,168,835. Yeast &c. BRITISH PETROLEUM CO. Ltd. March 8, 1967 [May 13, 1966], No. 21341/66. Heading C6F. The product of the purification stage (containing the micro-organism) of the cultivation process described and claimed in Specification 1,059, 886 is subjected to a separation stage (decantation and/ or centrifugation), thereafter a fraction containing the micro-organism is recovered, subjected to solvent extraction and dried. The dried fraction may be further solvent extracted.
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