Use of Cucurbita pepo Oil to Fight against the UV Action on the Skin
- 1 Laboratory of Natural Substances Chemistry (IRSEN), Brazzaville, Republic of Congo
- 2 Analytical Chemistry and Bioactive Substances Team, Faculty of Science and Technology, Marien Ngouabi University, Brazzaville, Republic of Congo
- 3 Laboratory for the Valorisation of Agri-Resources, National Polytechnic High School (ENSP), Marien Ngouabi University, Brazzaville, Republic of Congo
- 4 Institute of Chemistry of Clermont-Ferrand (ICCF), Clermont-Ferrand, France
- 5 LEXVA Analytical, Clermont Ferrand, France
Abstract
Skin aging is a process most often attributed to UV [1] and also to the use of creams and other cosmetic products low in antioxidant compounds [2] . Photochemically stable pepo Cucurbita oil can be used as an exogenous cosmetic supplement due to its high antioxidant content. Incorporated in an agar, media containing a synthetic melanin solution with added pumpkin oil are subjected to UV light, the aging thus modeled is followed by the measurement of photoresistance values correlated with chemical and spectrophotometric analyses. This study confirms that pumpkin oil is highly effective in protecting the skin, especially the most sensitive skins such as babies’ skin [3] by reinforcing the action of melanin and also that of albinos without melanin. Indeed its SPF ( Significant Sun Protection Factor ) index estimated during this work is very consistent, i.e. more than 22% of UVB ( 280 - 315 nm ) radiations are suppressed.
- Campiche, R., Curpen, S.J., Lutchmanen-Kolanthan, V., Gougeon, S., Cherel, M., Laurent, G., Schuetz, R., et al. (2020) Pigmentation Effects of Blue Light Irradiation on Skin and How to Protect against Them. International Journal of Cosmetic Science, 42, 399-406. https://doi.org/10.1111/ics.12637
- Krutmann, J., Morita, A. and Chung, J.H. (2012) Sun Exposure: What Molecular Photodermatology Tells Us about Its Good and Bad Sides. Journal of Investigative Dermatology, 132, 976-984. https://doi.org/10.1038/jid.2011.394
- Lakhlifi, D. (2019) Les Ultraviolets et Ses Effets Cellulaires Chez L’Enfant. Doctoral Dissertation.
- Sklar, L.R., Almutawa, F., Lim, H.W. and Hamzavi, I. (2013) Effects of Ultraviolet Radiation, Visible Light, and Infrared Radiation on Erythema and Pigmentation: A Review. Photochemical & Photobiological Sciences, 12, 54-64. https://doi.org/10.1039/C2PP25152C
- World Health Organization and International Commission on Non-Ionizing Radiation Protection (2002) Indice universel de rayonnement UV solaire: Guide pratique (No. WHO/SDE/OEH/02.2). Organisation mondiale de la Sante, Geneve.
- Nakavoua, A.H.W., Mampouya, D., Loumouamou, A.N., Silou, T., Chalard, P., Guyot, G., Chalchat, J.C., et al. (2011) Compared Ageing of Oil from Cucurbita pepo in Two Different Storage Conditions. Advance Journal of Food Science and Technology, 3, 132-143.
- Beylot, C. (2009) Vieillissement cutané: Aspects cliniques, histologiques et physiopathologiques. Annales de Dermatologie et de Vénéréologie, 136, S263-S269. https://doi.org/10.1016/S0151-9638(09)72530-X
- Dupont, E., Gomez, J. and Bilodeau, D. (2013) Beyond UV Radiation: A Skin under Challenge. International Journal of Cosmetic Science, 35, 224-232. https://doi.org/10.1111/ics.12036
- Greinert, R., Breitbart, E.W., Mohr, P. and Volkmer, B. (2014) Health Initiatives for the Prevention of Skin Cancer. In: Sunlight, Vitamin D and Skin Cancer, Springer, New York, 485-499. https://doi.org/10.1007/978-1-4939-0437-2_27
- AOAC (2019) Official Methods of Analysis of the Association of Official Analytical Chemists: Official Methods of Analysis of AOAC International. 21st Edition, AOAC, Washington DC.
- Corps Gras, Graines oléagineux et produits derivés Tome 1 AFNOR 2000; Edition prolia.
- Pescia, A.C., Astolfi, P., Puglia, C., Bonina, F., Perrotta, R., Herzog, B. and Damiani, E. (2012) On the Assessment of Photostability of Sunscreens Exposed to UVA Irradiation: From Glass Plates to Pig/Human Skin, Which Is Best? International Journal of Pharmaceutics, 427, 217-223. https://doi.org/10.1016/j.ijpharm.2012.02.001