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Reduction of acrylamide content in bread crust by starch coating
Author(s) -
Liu Jie,
Liu Xiaojie,
Man Yong,
Liu Yawei
Publication year - 2018
Publication title -
journal of the science of food and agriculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.782
H-Index - 142
eISSN - 1097-0010
pISSN - 0022-5142
DOI - 10.1002/jsfa.8476
Subject(s) - acrylamide , starch , coating , crust , food science , chemistry , moisture , water content , asparagine , materials science , polymer , biochemistry , geology , copolymer , organic chemistry , geochemistry , geotechnical engineering , enzyme
BACKGROUND A technique of starch coating to reduce acrylamide content in bread crust was proposed. Bread was prepared in accordance with a conventional procedure and corn or potato starch coating was brushed on the surface of the fermented dough prior to baking. RESULTS Corn starch coating caused a decrease in acrylamide of 66.7% and 77.1% for the outer and inner crust, respectively. The decrease caused by the potato starch coating was 68.4% and 77.4%, respectively. Starch coating reduced asparagine content significantly (43.4–82.9%; P < 0.01)in both the outer and inner crust. A lower temperature (difference of 10–20 °C) in combination with a higher moisture content (maximum difference of 8%) of bread crust were a result of starch coating, which effectively shortened the time span (4–8 min) over which acrylamide could form and accumulate. CONCLUSION The present study demonstrates that starch coating could be a simple, effective and practical application for reducing acrylamide levels in bread crust without changing the texture and crust color of bread. © 2017 Society of Chemical Industry