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Table 1 Degrees of substitution for enzymatic acylation of different starches with decanoic acid using lipase from Thermomyces lanuginosus (lipolase)

From: Lipase-catalysed acylation of starch and determination of the degree of substitution by methanolysis and GC

Starch source

DSa

% Amylose

Amylose

0.0025 ± 0.0006

100%

Hylon VII (high amylose)

0.0039 ± 0.0005

70%

Wheat

0.0042 ± 0.0001

25%

Maize

0.0040 ± 0.0006

25%

Tapioca

0.0093 ± 0.0011

17%

Amioca (high amylopectin)

0.0084 ± 0.0010

< 1%

  1. aAnalysis with transesterification/GC method, errors are standard deviation for triplicate experiments, all controls had DS < 0.00001. The values for amylose content were given by the suppliers of each starch type.
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BMC Biotechnology

ISSN: 1472-6750

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