Process for providing a culture of microorganisms to an elongated element

A process for depositing at least a culture (5) of microorganisms to an elongated element (2), comprising the steps of:

• a) providing at least a first feeding device (4) comprising at least a first outlet (7);
• b) supplying at least one elongated element (2), selected from a wire, a fiber, a thread, a yarn, a filament and combinations thereof to said at least first feeding device (4);
• c) feeding to said first outlet (7) at least a first culture (5) comprising at least one microorganism;
• d) dispensing said first culture (5) from said at least first outlet (7);
• e) contacting at least part of said elongated element (2) with said first culture (5) of microorganisms, to provide at least a part of said elongated element (2) with an amount of said first culture (5) of microorganisms;
• said process comprising the step of selectively varying the speed of said dispensing of said first culture (5) in function of the speed of supply of said elongated element (2), and/or as function of the absorption capacity, and/or the dimension of said at least one elongated element (2).