Influence of the Mixtures of Vegetable Oil and Vitamin E over the Microstructure and Rheology of Organogels

Author(s)

Martinez, Renata Miliani ^[1] ; Oseliero Filho, Pedro Leonidas ^[2] ; Gerbelli, Barbara Bianca ^[3] ; Magalhaes, Wagner Vidal ^[4] ; Velasco, Maria Valeria Robles ^[1] ; da Silva Lannes, Suzana Caetano ^[5] ; de Oliveira, Cristiano Luis Pinto ^[6] ; Rosado, Catarina ^[7] ; Baby, Andre Rolim ^[1]

Affiliation

^[1] Univ Sao Paulo, Dept Pharm, Fac Pharmaceut Sci, BR-05508000 Sao Paulo - Brazil

^[2] Univ Sao Paulo, Phys Inst, Dept Appl Phys, BR-05508000 Sao Paulo - Brazil

^[3] Fed Univ ABC, Ctr Nat & Human Sci, BR-09210170 Santo Andre - Brazil

^[4] Res & Dev Lab Chemyun Ltd, BR-18103065 Sorocaba - Brazil

^[5] Univ Sao Paulo, Fac Pharmaceut Sci, Dept Biochem & Pharmaceut Technol, BR-05508000 Sao Paulo - Brazil

^[6] Univ Sao Paulo, Phys Inst, Dept Expt Phys, BR-05508000 Sao Paulo - Brazil

^[7] CBIOS Univ Lusofonas Res Ctr Biosci & Hlth Techno, P-1749024 Lisbon - Portugal

• Document type: Journal article
• Source: GELS; v. 8, n. 1 JAN 2022.
• Web of Science Citations: 0

Abstract

Candelilla wax (CW) and 12-hydroxystearic acid (12HSA) are classic solid-fiber-matrix organogelators. Despite the high number of studies using those ingredients in oily systems, there is scarce literature using a mixture of oil and antioxidants. Vitamin E (VE) is an important candidate for its lipophilicity and several applications on pharmaceutical, cosmetics, and food industries. In this work, we investigated the influences of mixtures between vegetable oil (VO) and VE on the microstructures and rheological properties of CW and 12HSA organogels. A weak gel (G `'/G ` > 0.1) with a shear-thinning behavior was observed for all samples. The presence of VE impacted the gel strength and the phase transition temperatures in a dose-dependent pattern. Larger and denser packed crystals were seen for 12HSA samples, while smaller and more dispersed structures were obtained for CW organogels. The results obtained in this work allowed the correlation of the structural and mechanical properties of the organogels, which plays an important role in the physical-chemical characteristics of these materials. (AU)

• FAPESP's process: 16/24531-3 - Structural and biophysics properties of native and modified lipoproteins
• Grantee: Antonio Martins Figueiredo Neto
• Support Opportunities: Research Projects - Thematic Grants
• FAPESP's process: 20/02192-8 - Structural investigation of lipid and amphiphilic peptides via Langmuir and Langmuir-Blodgett films
• Grantee: Barbara Bianca Gerbelli
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor
• FAPESP's process: 19/16169-0 - Ex vivo and in vivo establishment of new chemopreventive properties of UV filters
• Grantee: André Rolim Baby
• Support Opportunities: Regular Research Grants
• FAPESP's process: 19/12301-1 - Synthesis of ordered mesoporous silica with different structures and morphologies
• Grantee: Pedro Leonidas Oseliero Filho
• Support Opportunities: Scholarships in Brazil - Post-Doctorate
• FAPESP's process: 18/05888-3 - Biosensors based on amphiphilic peptides for detection and diagnosis of diseases
• Grantee: Barbara Bianca Gerbelli
• Support Opportunities: Scholarships in Brazil - Post-Doctorate
• FAPESP's process: 20/13204-7 - The role of mesoporous silica morphology in the incorporation of diphtheria and tetanus anatoxins: potential adjuvants for oral vaccines
• Grantee: Pedro Leonidas Oseliero Filho
• Support Opportunities: Scholarships abroad - Research Internship - Post-doctor