US soft drinks and snacks giant PepsiCo posted a 55% surge in third quarter profit compared to last year’s figures which were impacted by the costs of buying cereal maker Quaker Oats.

The maker of Pepsi, Frito-Lay crisps and Doritos snacks saw net income to September 7 jump to $969m from $627m last year. Costs relating to Quaker were $27m against $231m in 2001. Group sales for the quarter grew 6.6% to $6.34bn from $5.98bn.

Internationally PepsiCo’s sales were flat at $576m up from $574m, while its Frito-Lay international division had net sales of $1.33bn up 3% from $1.29bn.

Gatorade - the sports drink acquired from Quaker Oats - had a volume increase of 16%, while water brand, Aquafina, helped boost volume growth of non-carbonated drinks by 18%, PepsiCo said.

Tropicana juice sales were flat over the period and 2% lower for the year to date.

Sales at Quaker Foods North America fell 4% to $380m, hit by a 6% decline in volume.

PepsiCo’s boss Steve Reinemund said: “Our businesses are fundamentally very healthy, and we are confident that we will achieve the higher end of our 13% to 14% earnings per share growth target for this year.”