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. 2020 Sep 12;25(18):4181. doi: 10.3390/molecules25184181

Table 1.

Thermal properties of isopentyl caffeate (ICaf), β-cyclodextrin (β-CD), and inclusion complex (ICaf:β-CD) prepared by physical mixture (PM), kneading (KN), co-evaporation (CO) using molar ratios of (A) 0.25:1, (B) 1:1 and (C) 2:1.

Sample Events Tonset (°C) Tendset (°C) ∆H (J)
β-CD 1 63.80 142.16 1.73
2 308.71 343.18 1.53
ICaf 1 127.63 133.77 0.22
PM 0.25:1 1 61.92 118.56 0.26
2 128.80 133.67 0.01
3 220.79 228.54 0.02
4 302.49 328.33 0.89
KN 0.25:1 1 96.04 106.75 0.32
2 298.69 326.48 1.10
CO 0.25:1 1 72.01 124.52 0.71
2 223.29 230.85 0.02
3 292.41 327.90 1.56
PM 1:1 1 64.30 103.73 0.76
2 127.67 134.52 0.05
3 319.40 332.30 0.51
KN 1:1 1 43.22 93.39 0.58
2 130.14 133.54 0.01
3 309.49 320.60 0.48
CO 1:1 1 129.19 132.79 0.01
2 318.53 320.40 0.51
PM 2:1 1 128.11 132.68 0.09
2 313.51 325.19 0.27
KN 2:1 1 130.08 133.17 0.04
2 311.19 326.05 0.38
CO 2:1 1 126.87 133.22 0.04
2 291.04 322.76 0.64