Degradation study by trichoderma spp. of poly (3-hydroxybuthyrate) and wood fibers composites

作者：Rapa Maria^*; Popa Mona Elena; Cornea Petruta Calina; Popa Vlad Ioan; Grosu Elena; Geicu Cristea Mihaela; Stoica Petruta; Tanase Elisabeta Elena

来源：Romanian Biotechnological Letters, 2014, 19(3): 9390-9399.

• biocomposites
• fungi
• colonization degree
• chemical changes

Poly(3-hydroxybutyrate) (PHB) is a typical biodegradable thermoplastic polymer from PHA class and is recognised as a potentially useful natural plastic, which is biodegradable in the environment. For overcome the stiffness and britlless of PHB, green composites based on PHB/cellulose fiber and PHB/wood fiber were prepared by melting technique. Maleic anhydride and succinic anhydride were used as the modifying agents for fibers. The biodegradation ability of the prepared green composites was investigated by estimation of degree of colonization by exposure to Trichoderma spp. action and by Fourier transform infrared spectra scanning. Attack of Trichoderma spp. to PHB composites led to physical and chemical changes. The results of the study have proved that Trichoderma spp. is able to colonize and degrade the studied PHB composites.

• 出版日期2014-7