Regulatory intervention by the US Federal Trade Commission is delaying the completion of an Australia-launched gelatine company sale to Germany-based Leiner Davis.

Parent company, Australia-based Goodman Fielder, has not revealed the exact reasons for the delay, but sources believe that the regulator is anxious to protect the market share of gelatine makers in the US.

Shareholders of Goodman Fielder have welcomed the deal as the business is worth A$310m (US$156.8m) and the sale proceeds will go towards funding a A$200m share buyback operation.