AGTEROF, WILHELMUS GERARDUS MARIA,BHATIA, RAJNI,HOFLAND, GERARD WILLEM
申请号：
CA2570799
公开号：
CA2570799C
申请日:
2005.06.16
申请国别(地区):
CA
年份:
2013
代理人:
摘要：
The present invention relates to a method of dehydrating pieces of intactplant or animal tissue, said pieces containing at least 30 wt. % of water, themethod comprising (i) contacting the pieces of intact tissue with apressurised gas to reduce the water contenit of the pieces by at least 50 %,said pressurised gas having a pressure of at least 0.5xPc and a temperature ofat least Tc-60 ~C, Pc representing the critical pressure of the gas and Tcrepresenting the critical temperature of the gas, and (ii) separating thepressurised gas from the dehydrated pieces, wherein at least 80 wt. %,preferably at least 90 wt. % of the matter removed by the gas from the piecesof intact plant or animal tissue is water. The invention also provides amethod of dehydrating a material containing at least 30 wt. % of water, usinga method as described before, followed by drying the separated pressurised gasby contacting said pressurised gas with a water absorbent water adsorbent； andrecirculating the dried pressurised gas to the partially dehydrated material.
