As illustrated in FIG 1, it can be seen that the installation allowing for {HEAD ~ implementation} of the method of the invention comprises one fermentor 1 provided with feeding means 3 of {TAIL ~ products} required for fermentation, and means not shown on the drawing relating to temperature adjustment, pH adjustment and oxygen admission and agitation 
As illustrated in FIG 1 , it can be seen that the installation allowing for { HEAD ~ implementation } of the method of the invention comprises one fermentor 1 provided with feeding means 3 of { TAIL ~ products } required for fermentation , and means not shown on the drawing relating to temperature adjustment , pH adjustment and oxygen admission and agitation
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