In a statement late on Wednesday, the company said it expects 7-8% organic sales growth for the year ending in August, down from its previous forecast of 9-11% growth. It kept its target of an EBIT margin before special items of around 29.5%.

Third-quarter operating profit before special items rose 9%to 91.7 million euro (82.16 million pounds) but was about 3% lower than the average analyst forecast, Refinitiv data showed. Net profit in the third quarter rose 10% to 66.5 million euros.

Chr Hansen shares fell around 13% in early trade on Thursday, trading at the bottom of the Stoxx 600 index and set for its worst one-day performance.

The company's colours business has suffered from slowing growth after a period of benefiting from higher demand for natural products from foodmakers and consumers in recent years. Chr Hansen also cited a weaker environment in emerging markets.

The sales warning prompted J.P. Morgan to cut its rating on the company to underweight from neutral.

"While margin disappointments in past quarters have largely been ignored by the market, a degradation in top-line cannot be ignored this time around," the analysts said in a research note.

(Reporting by Stine Jacobsen, editing by Deepa Babington)