@article{fdi:010006522, title = {{S}creening of microorganisms for biodegradation of poly(lactic acid) and lactic acid-containing polymers}, author = {{T}orres, {A}. and {L}i, {S}.{M}. and {R}oussos, {S}evastianos and {V}ert, {M}.}, editor = {}, language = {{ENG}}, abstract = {{T}he ability of some microorganisms to use lactic acid stereocopolymers and copolymers with glycolic acid as sole carbon and energy sources was studied under controlled or natural conditions. {F}irst, 14 filamentous fungal strains were tested in liquid cultures, adopting total lactic acid consumption, nitrogen source exhaustion, and maximal biomass production as selection criteria. {T}wo strains of #{F}usarium moniliforme$ and one strain of #{P}enicillium roqueforti$ were able to totally assimilate {DL}-lactic acid, partially soluble racemic oligomers ({M}w = 1,000) and the nitrogen source. {O}nly one strain of #{F}. moniliforme$ was able to grow on a poly(lactic acid) - glycolic acid copolymer ({M}w = 150,000) after 2 months of incubation at 28°{C} on synthetic agar medium. {M}ycelium development was examined by scanning electron microscopy. #{F}. moniliforme$ filaments were observed to grow not only at the copolymer surface but also through the bulk of the copolymer. {I}n a second approach, plates made of a racemic poly(lactic acid) were buried in the soil before being incubated in petri dishes containing mineral agar medium under controlled conditions. {F}ive strains of different filamentous fungi were isolated, and their ability to assimilate racemic poly(lactic acid) oligomers was tested in liquid cultures. ({R}{\'e}sum{\'e} d'auteur)}, keywords = {{FERMENTATION} ; {BIODEGRADATION} ; {ETUDE} {EXPERIMENTALE} ; {MILIEU} {DE} {CULTURE} ; {CHAMPIGNON} ; {ETUDE} {COMPARATIVE} ; {MICROSCOPIE} {ELECTRONIQUE} {A} {BALAYAGE} ; {POLYMERE} ; {ACIDE} {LACTIQUE}}, booktitle = {}, journal = {{A}pplied and {E}nvironmental {M}icrobiology}, volume = {62}, numero = {7}, pages = {2393--2397}, ISSN = {0099-2240}, year = {1996}, URL = {https://www.documentation.ird.fr/hor/fdi:010006522}, }