# The Sensory Quality and Volatile Profile of Dark
## 3 Results and Discussion
### Volatile Analysis
\begin{table}
\begin{tabular}{l c c c c} \hline \hline
**Volatile Compounds** & **CAS No.** & **Odour Descriptor** & **Control Variant** & **Chocolate 299v** & **Chocolate 564** \\ \hline \hline
**Aldehydes** & & & & **Abundance Levels \({}^{\star}\)** \\ Isobutyraldehyde & 78-84-2 & Banana, mally, chocolate-like, cocoa & \(9.34\times 10^{8}\)a & \(3.88\times 10^{8}\)b & \(6.87\times 10^{8}\)b \\
3-Methyl-butanal & 590-86-3 & Malty, powerful, cheese, green, dark chocolate, cocoa & \(1.05\times 10^{9}\)a & \(4.11\times 10^{9}\)b & \(4.57\times 10^{9}\)b \\ Hexanal & 66-25-1 & Green, slightly fruity, lemon, herbal, grassy, tallow & \(1.37\times 10^{8}\)a & \(4.28\times 10^{8}\)b & \(4.23\times 10^{8}\)b \\ Benzaldehyde & 100-52-7 & Bitter almost, sweet cherry & \(2.26\times 10^{8}\)a & \(3.84\times 10^{8}\)a & \(6.25\times 10^{8}\)a \\ Nonanal & 124-19-6 & Green, citrus, fatty, floral & \(4.02\times 10^{8}\)a & \(1.76\times 10^{8}\)a & \(1.72\times 10^{8}\)a \\ Isodhydro-lavandual & 35185-25-9 & Herbal, laverde, woody, green, blueberry, tomato & \(1.33\times 10^{8}\)a & \(4.29\times 10^{8}\)b & \(4.51\times 10^{8}\)b \\ Ethyl Vanillin & 121-32-4 & Sweet, creamy, vanilla, caramellic & \(2.91\times 10^{9}\)a & \(2.85\times 10^{9}\)a & \(2.76\times 10^{8}\)a \\
**Alcohois** & & & & \\ Ethanol & 64-17-5 & Dry, dust & \(1.88\times 10^{9}\)a & \(1.91\times 10^{9}\)a & \(1.82\times 10^{9}\)a \\
2,3-Butanediol & 513-85-9 & Fruity, creamy, buttercy & \(7.20\times 10^{10,8}\)a & \(5.18\times 10^{10,8}\)a & \(6.23\times 10^{10,8}\)a \\
1,6-Hepptad-cl & 2833-45-6 & Unknown & \(5.58\times 10^{8}\)a & \(2.28\times 10^{8}\)a & \(4.61\times 10^{8}\)a \\
2-Hepptad & 543-43-7 & Fresh person grass herbal sweet floral fruity green & \(2.34\times 10^{8}\)a & \(0\)b & \(0\)b \\
2-Ethyl-1-hexanol & 104-76-7 & Animal, Cardboard & \(2.20\times 10^{8}\)a & \(6.35\times 10^{7}\)b & \(2.32\times 10^{7}\)b \\ Phenylethyl Alcohol & 60-12-8 & Unclean, rose, violet-like, honey, floral, spicy & \(4.35\times 10^{8}\)a & \(3.84\times 10^{8}\)a & \(4.25\times 10^{8}\)a \\
**Kotenes** & & & & \\ Acetone & 67-64-1 & Earthy, wood pulp, hay & \(1.63\times 10^{9}\)ab & \(1.42\times 10^{9}\)b & \(1.89\times 10^{9}\)a \\ Butanone & 78-93-3 & Buttery, sour milk, ethernic & \(1.10\times 10^{9}\)a & \(4.09\times 10^{8}\)b & \(5.35\times 10^{8}\)b \\ Acetoin & 513-85-0 & Battery, sour milk, caramellic & \(3.13\times 10^{9}\)a & \(1.33\times 10^{9}\)a & \(2.74\times 10^{9}\)a \\
2-Hepptane & 110-43-0 & Blue cheese, spicy, Roufouter & \(7.51\times 10^{8}\)a & \(3.90\times 10^{8}\)a & \(1.58\times 10^{8}\)a \\ Acetophenone & 98-86-2 & Almond, musty, glue, orange blossom, sweet & \(1.18\times 10^{8}\)a & \(1.68\times 10^{8}\)b & \(1.88\times 10^{8}\)b \\
2-Nonanone & 821-55-6 & Malty, fruity, hot milk, smoked cheese & \(8.12\times 10^{8}\)a & \(2.72\times 10^{8}\)b & \(3.93\times 10^{8}\)b \\
**Pyazines** & & & & \\ Ethyl-6-methylpyrazine & 13925-03-6 & Roasted potato & \(7.93\times 10^{7}\)a & \(1.47\times 10^{8}\)b & \(1.55\times 10^{8}\)b \\ Trimethylpyrazine & 14667-55-1 & Choocolate, earthy & \(2.39\times 10^{9}\)a & \(3.09\times 10^{9}\)b & \(3.17\times 10^{8}\)b \\
3,6-Coco pyroxazine & 1330-65-1 & Patato, cocoa, roasted nutty & \(2.52\times 10^{8}\)a & \(2.68\times 10^{8}\)a & \(2.67\times 10^{8}\)a \\ Tetramethyl-pyrazine & 1124-11-4 & Musty, nuty, chocolate, office, cocoa, lard, burnt & \(6.00\times 10^{9}\)a & \(6.30\times 10^{9}\)b & \(6.51\times 10^{8}\)b \\
2-Methyl-3,5-diethylpyrazine & 18138-05-1 & Nutty, meaty, vegetable & \(2.10\times 10^{8}\)a & \(1.52\times 10^{8}\)b & \(1.55\times 10^{8}\)b \\
**Lactones** & & & & \\ \(\beta\)-Butyrolactone & 96-48-0 & creamy, oily, fatty nuances & \(1.64\times 10^{9}\)a & \(6.26\times 10^{8}\)a & \(1.35\times 10^{9}\)a \\ Pantolactone compound & 599-04-2 & Unknown & \(1.63\times 10^{8}\)a & \(1.06\times 10^{8}\)a & \(7.88\times 10^{7}\)a \\ d-Octenolactone & 16400-69-4 & Sweet, coconut-like & \(1.47\times 10^{8}\)a & \(7.98\times 10^{7}\)b & \(7.46\times 10^{7}\)b \\ \hline \hline \end{tabular}
\end{table}