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Characterization of the aroma-active, phenolic, and lipid profiles of the pistachio (Pistacia vera L.) nut as affected by the single and double roasting process

AuthorsRodríguez-Bencomo, Juan José ; Rodríguez Alcalá, Luis M. ; Fontecha, F. Javier ; Selli, Serkan
Roasting process
Aroma-active compounds
Antioxidant capacity
Issue Date2015
PublisherAmerican Chemical Society
CitationJournal of Agricultural and Food Chemistry 63(35): 7830-7839 (2015)
AbstractThe pistachio (Pistacia vera L.) nut is one of the most widely consumed edible nuts in the world. However, it is the roasting process that makes the pistachio commercially viable and valuable as it serves as the key step to improving the nut’s hallmark sensory characteristics including flavor, color, and texture. Consequently, the present study explores the effects of the single-roasting and double-roasting process on the pistachio’s chemical composition, specifically aroma-active compounds, polyphenols, and lipids. Results showed the total polyphenol content of increased with the roasting treatment; however, not all phenolic compounds demonstrated this behavior. With regard to the aroma and aroma-active compounds, the results indicated that roasting process results in the development of characteristics and pleasant aroma of pistachio samples due to the Maillard reaction. With regard to lipids, the pistachio roasting treatment reduced the concentration of CN38 diacylglycerides while increasing the amount of elaidic acid.
Identifiersdoi: 10.1021/acs.jafc.5b02576
issn: 0021-8561
e-issn: 1520-5118
Appears in Collections:(CIAL) Artículos
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