Release behavior of allyl sulfide from cyclodextrin inclusion complex of allyl sulfide under different storage conditions

Figures & data

Table 1. Initial moisture content of the cyclodextrin inclusion complexes.

Type of inclusion complex	Initial moisture content (%)
	Effect of temperature	Effect of RH
	(Figures 1–3)	(Figure 4)
α-CD	7.8 ± 2.04	8.9 ± 1.05
β-CD	10.7 ± 0.14	11.3 ± 0.91
γ-CD	8.8 ± 0.51	8.8 ± 0.07

Figure 1. Release behavior of allyl sulfide from its α-CD (), β-CD (■), and γ-CD (▲) inclusion complex powders and MCT oil (10000 ppm) (×) at 100 °C. The solid lines were calculated by Equation (1(1) ).

Table 2. Release rate constants, k₁₀, and standard deviations, σ, of the distribution of ∆G at 100 °C.

Type	k10 (day^−1)	σ
α-CD	5.95 × 10^−2	0.8
β-CD	7.51 × 10^−1	0.99
γ-CD	7.51 × 10^−1	0.99

Figure 2. Release behavior of allyl sulfide from its α-CD inclusion complex spray-dried powders at different temperatures (: 100 °C,

: 80 °C,

: 60 °C). The solid lines were calculated by Equation (1(1) ).

Figure 3. Arrhenius plot of the release rate constants of allyl sulfide from the α-CD inclusion complexes.

Figure 4. Release behavior of allyl sulfide from its α-, β-, and γ-CD powders with initial moisture content of 8.9, 11.3, and 8.8 wt%, respectively, at different RH and 50 °C (,

,

,

: α-CD with 6, 40, 54, 73% RH, ■, ,

,

: β-CD with 6, 40, 54, 73% RH, ▲, △,

,

: γ-CD with 6, 40, 54, 73% RH, respectively). The solid lines were calculated by Equation (1(1) ).

Figure 5. Release behavior of allyl sulfide from its α-, β-, and γ-CD powders with initial moisture content of 2.7, 1.8, and 2.7 wt%, respectively, at different RH and 50 °C (,

,

,

: α-CD with 6, 40, 54, 73% RH, ■, ,

,

: β-CD with 6, 40, 54, 73% RH, ▲, △,

,

: γ-CD with 6, 40, 54, 73% RH, respectively). The solid lines were calculated by Equation (1(1) ).

Figure 6. Relationship between RH and ln k₁₀ at different IMC (, : α-CD powders with 8.9 and 2.7 wt% IMC, ■, : β-CD powders with 11.3 and 1.8 wt% IMC, and ▲, △: γ-CD powders with 8.8 and 2.7 wt% IMC; — IMC 8.9, 11.3, and 8.8 wt% of α-, β-, and γ-CD, respectively; ┄ IMC 2.7, 1.8, and 2.7 wt% of α-, β-, and γ-CD, respectively).