Polylactic asidhi (PLA) rudzi rutsva rwezvinhu zvipenyu uye zvinogonekazve zvinoora, izvo zvinogadzirwa kubva kune sitachi inokurudzirwa nezvinogadzirwazve chirimwa zviwanikwa (sechibage necassava). Starch mbishi zvinhu zvakawana shuga kuburikidza nesaccharification, uyezve kuviriswa kweglucose uye mamwe madhiri kuburitsa yakakwira kuchena lactic acid, uyezve kuburikidza nemakemikari synthesis nzira yekugadzira polylactic asidhi yeimwe molecular uremu. Iine biodegradability yakanaka.