ELECTRONIC SUPPLEMENTARY MATERIAL
Mesostructured silica materials with different structures and morphologies as carriers for quercetin and naringin encapsulation
Sonia Morante-Zarcero, Alba Endrino, Natalia Casado, Damián Pérez-Quintanilla and Isabel Sierra*
Departamento de Tecnología Química y Ambiental, E.S.C.E.T, Universidad Rey Juan Carlos, C/ Tulipán s/n, 28933 Móstoles, Madrid, Spain
* Corresponding author: Tel.: (+34) 914887018; fax: (+34) 914888143 E-mail address: isabel.sierra@urjc.es
Quercetin
Naringin
Fig. S1. Chemical structures and dimensions (Å) of quercetin and naringin molecules (Software Mercury 3.10.3)
Table S1. Higuchi release model: Release Higuchi rate constant (KH) and time of release by diffusive process obtaining for quercetin and naringin delivered from HMS mesostructured silica at different silica/analyte ratios. Ratio 1:1 = 50 mg silica / 50 mg analyte; ratio 1:5 = 10 mg silica / 50 mg analyte.
pH 2.0 pH 7.4
KH pH 2 Time (min) KH pH 7 Time (min)
HMS- Quercetin ratio 1:1 2.5 20 5.19 25
HMS- Quercetin ratio 1:5 1.41 25 2.49 15
HMS- Naringin ratio 1:1 2.93 40 3.92 30
HMS- Naringin ratio 1:5 2.13 25 2.29 50
