期刊
JOURNAL OF DAIRY SCIENCE
卷 106, 期 9, 页码 5970-5987出版社
ELSEVIER SCIENCE INC
DOI: 10.3168/jds.2022-22873
关键词
infant formula; odor-active compounds; Maillard reaction; lipid oxidation
The aroma profile and compounds of infant formula are influenced by factors such as the skimming process, fatty acid composition, and type of base used. Aldehydes and ketones are determined to be the most abundant odor-active compounds.
Aroma is an important attribute of infant formula (IF). In this study, 218 volatiles and 62 odor-active compounds were detected from IF by dynamic head -space sampling combined with comprehensive 2 -di-mensional gas chromatography-olfactometry-mass spectrometry. Aldehydes and ketones were determined as the most abundant odor-active compounds. Among them, the contents of pentanal and hexanal were the most abundant, while 1-octen-3-one had the highest flavor dilution factor and odor activity value in most of the IF. Sensory evaluation and electronic nose analysis showed that the skimming process, the fatty acid com-position, and powdered or liquid milk base used for the production of IF may be important factors resulting in their differences in aroma profiles and compounds. These differences were assumed to be mainly ascribed to the Maillard reaction and lipid oxidation, which were largely influenced by the temperature and water activ-
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