Production of liquid soap with vegetable oil from ungurahua (Oenocarpus bataua) and essential oils from lemon verbena (Cymbopogon citratus).

Authors

Leobel Morell Pérez Universidad Estatal Amazónica, Km. 2 ½, vía Puyo a Tena (Paso Lateral), Ecuador. https://orcid.org/0000-0003-3963-947X
Luis Bravo Sánchez Universidad Estatal Amazónica, Km. 2 ½, vía Puyo a Tena (Paso Lateral), Ecuador. https://orcid.org/0000-0001-5756-6628
Manuel Lázaro Pérez Quintana Universidad Estatal Amazónica, Km. 2 ½, vía Puyo a Tena (Paso Lateral), Ecuador. https://orcid.org/0000-0001-9470-0101
Reinier Abreu-Naranjo Universidad Estatal Amazónica, Km. 2 ½, vía Puyo a Tena (Paso Lateral), Ecuador. https://orcid.org/0000-0003-1048-7126
Eberto Tuniesky Gutiérrez de León Universidad Estatal Amazónica, Km. 2 ½, vía Puyo a Tena (Paso Lateral), Ecuador. https://orcid.org/0000-0001-7682-9657

DOI:

https://doi.org/10.33936/revbasdelaciencia.v9i3.6490

Keywords:

saponification, liquid soap, essential oil

Abstract

The formulation of liquid soaps from Amazonian vegetable oils combined with essential oils can contribute to the sustainable development of the Ecuadorian Amazon region. Therefore, the objective of the present study was to elaborate a liquid soap using ungurahua oil (Oenocarpus bataua) and the essential oil of hiervaluisa (Cymbopogon citratus) as raw material, with antioxidant properties and potential for use in the cosmetic industry. The
saponification of a mixture of O. bataua oil and C. citratus essential oil was carried out using KOH. A 22-factorial design with three central points and two replicates was applied to evaluate the effects of temperature and time on the saponification yield. Total polyphenol content (TPC) was determined by the Folin-Ciocalteau method and antioxidant activity was determined by the Ferric Reducing Antioxidant Power Assay (FRAP). The yield of C. citratus essential oil was 0.48%. This essential oil presented a significant TPC and antioxidant activity. The analysis
of the applied factorial design showed that temperature had a significant effect on the soap paste yield, while time and time-temperature interaction were not significant factors. The liquid soap made from the soap paste, with the
addition of lemon verbena essential oil, retained total polyphenol content and antioxidant activity. In addition, the physicochemical parameters of the liquid soap comply with the values established in INEN 850, which confirms the adequate quality of the product.

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References

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