US food products company Sysco Corp has posted an 18% rise in fourth-quarter net income, beating analysts' expectations, helped by rising food and food product prices. The food service distribution firm posted net income of US$242.7m, or 37 cents a share, compared with $205.9m, or 31 cents a share, a year earlier. Analysts had forecast earnings of 35 cents a share, reported Dow Jones Business News.