Biodiesel production from Xanthoceras sorbifolia in China: Opportunities and challenges
2013
Yao, Zeng-Yu | Qi, Jian-Hua | Yin, Li-Ming
With a deep concern over the energy shortage and climate change, biodiesel has become more attractive to governments globally. Xanthoceras sorbifolia Bunge, an endemic oilseed tree to China, has been identified as a major woody energy plant for biodiesel production and receives special support from Chinese governments for its development. This paper analyzes the opportunities and challenges for biodiesel production from X. sorbifolia in China. The biological characteristics, geographic distribution, site requirements, propagation, cultivation and productivity of this species are described. The information about the presence of various phytochemicals in different parts of the plant is summarized. As a multifunctional tree, it plays other important roles in addition to the oil production for biodiesel, having many potential uses such as soil and water conservation, land reclamation, carbon sink, landscaping, and productions of foods, fodders, medicines and industrial chemicals. The potential advantages and disadvantages of the biodiesel production from X. sorbifolia are outlined, and the needs for further research are recommended. The low fruit-setting rate and the small percentage of fine breeds result in a low yield, a high development cost, and a low economic efficiency of the biodiesel production, which is the development bottleneck of the biodiesel industry of X. sorbifolia presently. Integral valorization of the co-products such as leaves, branches, hulls, testa and kernel meals can make for the cost reduction and industrial production of the biodiesel from X. sorbifolia.
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