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Chapter 71. Multiple Headspace Extraction – an Effective Method to Quantify Aroma Compounds in Bread Crumb
出版Elsevier Inc. Chapters, 2013-07-29
主題Science / Life Sciences / General
ISBN01280675949780128067598
URLhttp://books.google.com.hk/books?id=wIBzDAAAQBAJ&hl=&source=gbs_api
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註釋Quantification of aroma compounds in a solid food product such as bread can be difficult and time-consuming. Multiple headspace extraction (MHE) was performed on wheat bread crumb by dynamic headspace sampling followed by gas chromatography mass spectrometry analysis. MHE was found to be a successful, relatively simple and reproducible method for the quantification of aroma compounds in bread, since the addition of standards directly into the solid bread sample is not necessary. Furthermore, two different purge conditions within dynamic headspace sampling were successfully used for the quantification of volatiles with low and high breakthrough volumes.