Journal
JOURNAL OF DAIRY SCIENCE
Volume 96, Issue 4, Pages 1972-1983Publisher
ELSEVIER SCIENCE INC
DOI: 10.3168/jds.2012-5644
Keywords
flavor compound; Gouda cheese; cholesterol-removed Gouda cheese
Funding
- Ministry for Food, Agriculture, Forestry and Fisheries Project in Seoul, Republic of Korea
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This study was performed to compare the flavor compounds of cholesterol-removed Gouda cheese (CRGC) and those of Gouda cheese (control) during ripening. The CRGC was made using milk treated with crosslinked beta-cyclodextrin (beta-CD). The solid-phase micro-extraction (SPME) method was used to extract flavor compounds from Gouda cheese. In both CRGC and control cheese, 31 flavor compounds were identified, including 6 free fatty acids, 5 esters, 5 ketones, 1 aldehyde, 3 lactones, 5 alcohols, and 6 miscellaneous compounds. Free fatty acids were the most abundant flavor compounds quantified in CRGC and control cheese. In the early stage of ripening, concentrations of flavor compounds in CRGC and control cheese were 16.42 and 10.38 mg/kg, respectively. At 6 mo, they increased to 40.90 and 67.89 mg/kg, respectively. A group of esters was the second abundant flavor compound in CRGC and control cheese. At the initial stage of ripening, total concentrations of esters were 12.94 (CRGC) and 10.95 mg/kg (control) and they increased to 22.73 (CRGC) and 27.68 mg/kg (control). Total concentrations of ketones were 1.96 (CRGC) and 6.49 mg/kg (control) at the initial stage of ripening. After 6 mo of ripening, total concentrations reached 11.32 (CRGC) and 52.43 mg/kg (control). In the case of the lactones, at the early stage of ripening, total concentrations of CRGC and control cheese were 0.63 and 0.84 mg/kg, respectively, and then increased to 1.73 (CRGC) and 3.25 mg/kg (control) at the end of ripening. Based on the results of this study, the flavor compounds of CRGC and control showed slightly different profiles during ripening.
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