Administrator BDO Stoy Hayward said it had closed 60 shops, rendering 305 staff redundant, and was looking to sell the remaining 35.
"These would be good stores in primary and secondary locations," said Allen Shepherd, associate director at Christie's. "They would probably be snapped up by a high street, food-based retail chain such as TM Retail or One Stop."
He added that the outlets would be too small to be Tesco Express or Sainsbury's Local.
West Country butcher Lloyd Maunder, owner of Dewhurst, blamed its collapse on soaring energy bills and competition from the supermarkets.