PMID- 36005121 OWN - NLM STAT- PubMed-not-MEDLINE LR - 20220828 IS - 2310-2861 (Electronic) IS - 2310-2861 (Linking) VI - 8 IP - 8 DP - 2022 Aug 19 TI - Effects of Sorbitan Monostearate and Stearyl Alcohol on the Physicochemical Parameters of Sunflower-Wax-Based Oleogels. LID - 10.3390/gels8080520 [doi] LID - 520 AB - A rising health concern with saturated fatty acids allowed researchers to look into the science of replacing these fats with unsaturated fatty acids. Oleogelation is a technique to structure edible oil using gelators. The present study looked for the effect of solid emulsifiers; namely, sorbitan monostearate (SP) and stearyl alcohol (SA), on the physicochemical parameters of oleogels. All the oleogels were formulated using 5% sunflower wax (SW) in sunflower oil (SO). The formulated oleogels displayed irregular-shaped wax crystals on their surface. The bright-field and polarized microscopy showed the fiber/needle network of wax crystals. Formulations consisting of 10 mg (0.05% w/w) of both the emulsifiers (SA10 and SP10) in 20 g of oleogels displayed the appearance of a dense wax crystal network. The SP and SA underwent co-crystallization with wax molecules, which enhanced crystal growth and increased the density and size of the wax crystals. The XRD and FTIR studies suggested the presence of a similar beta' polymorph to that of the triacylglycerols' arrangement. The incorporation of SA and SP in wax crystal packing might have resulted in a lower crystallization rate in SA10 and SP10. Evaluation of the thermal properties of oleogels through DSC showed better gel recurrence of high melting enthalpy. These formulations also displayed a sustained release of curcumin. Despite the variations in several properties (e.g., microstructures, crystallite size, thermal properties, and nutrient release), the emulsifiers did not affect the mechanical properties of the oleogel. The meager amounts of both the emulsifiers were able to modulate the nutrient release from the oleogels without affecting their mechanical properties in comparison to the control sample. FAU - Bharti, Deepti AU - Bharti D AD - Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela 769008, India. FAU - Kim, Doman AU - Kim D AUID- ORCID: 0000-0003-0389-3441 AD - Department of International Agricultural Technology & Institute of Green BioScience and Technology, Seoul National University, Seoul 24266, Korea. FAU - Banerjee, Indranil AU - Banerjee I AD - Department of Bioscience & Bioengineering, IIT Jodhpur, Jodhpur 342037, India. FAU - Rousseau, Derick AU - Rousseau D AD - Department of Chemistry and Biology, Ryerson University, Toronto, ON M5B 2K3, Canada. FAU - Pal, Kunal AU - Pal K AUID- ORCID: 0000-0002-4618-8809 AD - Department of Biotechnology and Medical Engineering, National Institute of Technology Rourkela, Rourkela 769008, India. LA - eng PT - Journal Article DEP - 20220819 PL - Switzerland TA - Gels JT - Gels (Basel, Switzerland) JID - 101696925 PMC - PMC9407308 OTO - NOTNLM OT - crystallization OT - emulsifier OT - gelator OT - oleogel OT - wax COIS- The authors declare no conflict of interest. EDAT- 2022/08/26 06:00 MHDA- 2022/08/26 06:01 PMCR- 2022/08/19 CRDT- 2022/08/25 07:32 PHST- 2022/07/06 00:00 [received] PHST- 2022/08/04 00:00 [revised] PHST- 2022/08/17 00:00 [accepted] PHST- 2022/08/25 07:32 [entrez] PHST- 2022/08/26 06:00 [pubmed] PHST- 2022/08/26 06:01 [medline] PHST- 2022/08/19 00:00 [pmc-release] AID - gels8080520 [pii] AID - gels-08-00520 [pii] AID - 10.3390/gels8080520 [doi] PST - epublish SO - Gels. 2022 Aug 19;8(8):520. doi: 10.3390/gels8080520.