{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,11,7]],"date-time":"2026-11-07T14:10:19Z","timestamp":1794060619551,"version":"4.8.0"},"reference-count":34,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2012,3,19]],"date-time":"2012-03-19T00:00:00Z","timestamp":1332115200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Food Science"],"published-print":{"date-parts":[[2012,4]]},"abstract":"<jats:p>\n                    <jats:bold>Abstract:\u2003<\/jats:bold>\n                    Microwave, oven, and oil roasting of almonds were used to promote almond flavor and color formation. Raw pasteurized almonds were roasted in a microwave for 1 to 3 min, in an oven at 177 \u00b0C for 5, 10, 15, and 20 min; and at 135 and 163 \u00b0C for 20 min, and in oil at 135, 163, and 177 \u00b0C for 5 min and 177 \u00b0C for 10 min. Volatile compounds were quantified in the headspace of ground almonds, both raw and roasted, by selected ion flow tube mass spectrometry. Strong correlations were found between\n                    <jats:italic>L<\/jats:italic>\n                    value, chroma, and 5\u2010(hydroxy methyl)\u20102\u2010 furfural; and were independent of roasting method. Raw almonds had lower concentrations of most volatiles than roasted almonds. Conditions that produced color equivalent to commercial samples were 2 min in the microwave, 5 min at 177 \u00b0C in the oven, and 5 min at 135 \u00b0C in oil. Microwave heating produced higher levels of most volatiles than oven and oil roasting at commercial color. Sensory evaluation indicated that microwave\u2010roasted almonds had the strongest aroma and were the most preferred. Oil\u2010roasted almonds showed significantly lower levels of volatiles than other methods, likely due to loss of these volatiles into the oil. Alcohols such as benzyl alcohols and strecker aldehydes including benzaldehyde and methional were at higher concentrations than other volatiles in roasted almonds. The oxidation of lipids to form alkanals such as nonanal and degradation of sugars to form furan type compounds was also observed. The Maillard reaction contributed to the formation of more of the total volatiles in almonds than the lipid oxidation reaction.\n                  <\/jats:p>\n                  <jats:p>\n                    <jats:bold>Practical Application:\u2003<\/jats:bold>\n                    The level of 5\u2010(hydroxy methyl)\u20102\u2010 furfural (HMF), color, volatile profile, and sensory perception can be used to develop the best roasting method, time, and temperature for almonds. The rate of color development and the production of volatiles differ under different roasting conditions. Based on the color, volatile, and sensory assessments of the 3 almonds, the use of microwave technology as a process for roasting almonds reduces processing time and leads to an almond product with better flavor than oven or oil roasting.\n                  <\/jats:p>","DOI":"10.1111\/j.1750-3841.2012.02629.x","type":"journal-article","created":{"date-parts":[[2012,3,19]],"date-time":"2012-03-19T12:38:04Z","timestamp":1332160684000},"source":"Crossref","is-referenced-by-count":105,"title":["Effect of Roasting Conditions on Color and Volatile Profile Including HMF Level in Sweet Almonds (\n                    <i>Prunus dulcis<\/i>\n                    )"],"prefix":"10.1111","volume":"77","author":[{"given":"Amal","family":"Agila","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sheryl","family":"Barringer","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2012,3,19]]},"reference":[{"key":"e_1_2_5_2_1","unstructured":"Alchemist.2010. 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