Alkaline halloysite nanotubes/low density polyethylene nanocomposite films with increased ethylene absorption capacity: Applications in cherry tomato packaging

•LDPE film incorporated with ALK-HNTs was successfully developed.•Gas barrier and crystallinity of composite film was improved.•ALK-HNTs can increase the ethylene absorption capacity of LDPE.•Composite film effectively extended the shelf life of cherry tomatoes.•As-prepared film is potential alternative material for active food packaging.