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The use of cellulosic or lignocellulosic materials (cellulose fibers, wood fibers, nut flour, jute, sisal, etc.) as filler for reinforcement of polymeric matrices has increased lately. They are rich in lignin, hemicellulose and cellulose and are used for various applications depending on their composition and physical properties. An increasing world trend towards the maximum utilization of natural resources through new processes and products has been driving to the study and exploration of rich renewable natural materials generating new applications to lignocellulosic fibers in the automotive industry, production of adhesives, lactic acid, active carbon and furfural 1,2 in the development of composites. Apart from the well-known fibers (flax, ramie, jute, etc.) one of the most interesting among the lesser known fibers is the luffa cylindrical fiber. This fiber is quite common in the mid-south of America as well. As for Turkey, it grows well in the areas of the Mediterranean climate. The Luffa cylindrica fibers are a subtropical plant of the cucurbitaceous family, which produces a fruit with a fibrous vascular system. Their size varies in relation to the areas they grow in ranging from 15 cm to1m, or even more than one meter in certain kinds 3 (Fig. 1). It has wide use of Luffa cylindrica as scouring pads during bathing, for the manufacture of palm sole, inner soler for filters, leather straps for automobiles and other engine, etc. in the industrial sector 4 .

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