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γ-Cyclodextrin: a review on enzymatic production and applications


Cyclodextrins are cyclic α-1,4-glucans that are produced from starch or starch derivates using cyclodextrin glycosyltransferase (CGTase). The most common forms are α-, β-, and γ-cyclodextrins. This mini-review focuses on the enzymatic production, unique properties, and applications of γ-cyclodextrin as well as its difference with α- and β-cyclodextrins. As all known wild-type CGTases produce a mixture of α-, β-, and γ-cyclodextrins, the obtaining of a CGTase predominantly producing γ-cyclodextrin is discussed. Recently, more economic production processes for γ-cyclodextrin have been developed using improved γ-CGTases and appropriate complexing agents. Compared with α- and β-cyclodextrins, γ-cyclodextrin has a larger internal cavity, higher water solubility, and more bioavailability, so it has wider applications in many industries, especially in the food and pharmaceutical industries.

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We thank Dr Y. Zhu (Wageningen University, The Netherlands) for critically reading this manuscript. This work was supported financially by the Natural Science Foundation of Jiangsu Province (BK2007019), the Major State Basic Research Development Program of China (973 Program; 2007CB714306), and the National High-tech Research and Development Program of China (863 Program; 20060110Z3008).

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Correspondence to Jing Wu or Jian Chen.

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Li, Z., Wang, M., Wang, F. et al. γ-Cyclodextrin: a review on enzymatic production and applications. Appl Microbiol Biotechnol 77, 245–255 (2007).

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  • Gamma-Cyclodextrin
  • Cyclodextrin glycosyltransferase
  • Enzymatic production
  • Application
  • Property