Soybean

Authored by: Babu Valliyodan , Jeong-Dong Lee , Grover J. Shannon , Henry T. Nguyen

Handbook of Bioenergy Crop Plants

Print publication date:  March  2012
Online publication date:  April  2012

Print ISBN: 9781439816844
eBook ISBN: 9781315099255
Adobe ISBN:

10.1201/b11711-23

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Abstract

Bioenergy, the energy derived from biomass, cannot substitute entirely for fossil fuels given present agricultural practices, but it can help to reduce the use of fossil fuels to a certain extent. The main type of bioenergy production is the burning of solid materials or liquid biofuel derived from major bioenergy crops. These diverse and sustainable bioenergy crops will noticeably improve global energy security and environmental benefits. In the United States, most ethanol is produced from corn whereas biodiesel is made from soybean oil or recycled cooking oils. Production and usage of biodiesel, fatty acid alkyl esters, has become more attractive because of its environment friendliness and their origin from the renewable resources (Shieh et al. 2003). Alkali-catalyzed transesterification of oil or fatty acids with the help of an alcohol is the base reaction and produces fatty acid methyl esters and glycerol. Through using the biocatalysts or the enzymatic biodiesel, production has more commercial potential than the complete chemical approach (Hass et al. 2002; Shieh et al. 2003; Tan et al. 2010). Soybean oil has been broadly studied as a raw material for fatty acid methyl ester biodiesel production by transesterification (Abreu et al. 2003; Suppes et al. 2004; Sensoz and Kaynar 2006). When compared with the other oil seed crops, soybean acreages are greater in the United States and this contributes toward the higher availability of soybean oil for biofuel feedstock. Soybean oil is increasingly used as feedstock for the production of biodiesel.

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