Retail food prices are heading for their biggest annual increase in as much as 30 years， raising fears that the world faces an unprecedented period of food price inflation.

　　Prices have soared as the expanding biofuels industry， climate change and the growing prosperity of nations such as India and China push up the costs of farm commodities including wheat， corn， milk and oils.

　　Food companies have started passing on these increases to consumers but the prospect of sustained commodity price rises means the industry's profits could be hit as it is forced to absorb the higher costs itself.

　　食品零售價(jià)格的增幅正逐步達(dá)到30年來最大的增幅，使得市場(chǎng)擔(dān)心全球正面臨一個(gè)前所未有的食品價(jià)格上漲時(shí)期。

　　生物燃料行業(yè)的不斷擴(kuò)張、氣候變化以及印度和中國(guó)等國(guó)經(jīng)濟(jì)的不斷增長(zhǎng)，推升了小麥、玉米、牛奶和食用油等農(nóng)產(chǎn)品價(jià)格，食品價(jià)格已大幅上漲。

　　食品公司已開始將食品價(jià)格上漲轉(zhuǎn)嫁到消費(fèi)者身上，但農(nóng)產(chǎn)品價(jià)格持續(xù)上漲的前景意味著食品行業(yè)利潤(rùn)可能受到影響，因?yàn)樵撔袠I(yè)將不得不自行消化成本上漲。