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5,6,7,8-Tetrahydroquinoxaline FEMA 3321 high purity 5,6,7,8-Tetrahydroquinoxaline
Chemical Properties | CLEAR VERY SLIGHTLY YELLOW LIQUID |
Occurrence | Reported found in cocoa, coffee, wheat bread, fried cured pork, pork liver, cocoa, coffee, roasted filbert, roasted peanut and roasted sesame seeds. |
Preparation | By condensation of alicyclic α, β-diketone with an α, β-diamine; condensation of an acyclic α, β-diamine with an α, β-dicarbonyl. |
Aroma threshold values | Aroma characteristics at 1.0%: nutty roasted corn chip, peanut, hazelnut, toasted coconut, coffee, graham cracker, popcorn, toasted and roasted grain. |
Taste threshold values | Taste characteristics from 5 to 10 ppm: roasted nutty, corn and popcorn, toasted grain and corn chip, taco fatty, basmati rice, hazelnut and roasted coffee-like. Taste characteristics at 10 ppm: nutty, musty, corn taco and popcorn-like. |
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