Safety evaluation of the food enzyme β-amylase from genetically modified Bacillus licheniformis strain NZYM-JA

food enzyme, b-amylase, 4-a-D-glucan maltohydrolase, EC, Bacillus licheniformis, genetically modified microorganism
First published in the EFSA Journal
18 August 2017
14 June 2017
Scientific Opinion

The food enzyme considered in this opinion is a β-amylase (4-α-d-glucan maltohydrolase; EC, produced with genetically modified Bacillus licheniformis strain NZYM-JA by Novozymes A/S (Denmark). The β-amylase food enzyme is intended to be used in starch processing for the production of glucose syrups. Since the residual amounts of total organic solids (TOS) in glucose syrups after filtration and purification during starch processing were considered negligible, no dietary exposure was calculated. Toxicological tests made with the food enzyme under application indicated that there was no concern with respect to genotoxicity, mutagenicity or systemic toxicity. The allergenicity was evaluated by searching for similarity of the amino acid sequence to those of known allergens; no match was found. The Panel considers that there are no indications for allergic reactions. Based on the genetic modifications performed, the manufacturing process, the compositional and biochemical data provided, the findings in the toxicological studies and allergenicity assessment, the Panel concludes that this food enzyme does not give rise to safety concerns under the intended conditions of use.

Panel members at the time of adoption
Claudia Bolognesi, Laurence Castle, Jean-Pierre Cravedi, Karl-Heinz Engel, Paul Fowler, Roland Franz, Konrad Grob, Rainer Gürtler, Trine Husøy, Sirpa Kärenlampi, Wim Mennes, Maria Rosaria Milana, André Penninks, Maria de Fátima Poças, Vittorio Silano, Andrew Smith, Christina Tlustos, Detlef Wölfle, Holger Zorn, Corina-Aurelia Zugravu.
Panel on Food Contact Materials, Enzymes, Flavourings and Processing Aids
fip [at]
EFSA Journal 2017;15(8):4896
Question Number
On request from
European Commission

The full opinion will be published in accordance with Article 12(3) of Regulation (EC) No 1331/2008 once decision on confidentiality will be received from the European Commission. The following information has been provided under the confidentiality framework and has been redacted awaiting the decision of the Commission: monitoring of the production strain; manufacturing process and raw materials used; and genetic modifications.