Sustainability aspects of biofuels
margarine in the USA. In addition, corn sweeteners supply more than 56% of the sweeteners
market in the US (Soyatech, 2012). Nevertheless, it has been hard to predict how decreased
production actually has impacted the food market. Corn's primary utilisation is in animal
feed, and even then it is often mixed with other feed types. Corn's higher prices on the first
hand result in substitution with other feed cereals, which does not necessarily result in
increased food prices (Leibtag, 2008).
Figure 6. USA corn usage (USDA, 2012). In the USA, corn is a major source of bioethanol
feedstock. Other major usage of corn is animal feed.
3.2. Wheat
Wheat is one of the leading staple crops in the world. Its production grew dramatically
between 1961 and 2007, from 222.4-607 million tons. Wheat has high concentration in
Western Europe, eastern USA, and China and India. Global wheat production is focused in
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