How to change name in json for show in page

I want to change name in json for show in page (ion-select)

mycodehtml

ion-select [(ngModel)]="refine" (ionChange)="optionsFn(item, i);" >
        <ion-option [value]="item"  *ngFor="let item of totalfilter;let i = index" >{{item["@NAME"]}}</ion-option>
      </ion-select>

myjson

"FACETLIST":{
    "FACET":[
      {
        "@NAME":"creator",
        "@COUNT":"2"

      },
      {
        "@NAME":"lang",
        "@COUNT":"1"
      },
      {
        "@NAME":"rtype",
        "@COUNT":"1",

]
}

this above ionic select show creator lang and rtype but I want to change @NAME for show in page

example creator->Creator, lang->Language

But I do not want to change value in json (I want to change for show in page)