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Julia Reveny
Department Of Formulation Technology, Faculty Of Pharmacy, Universitas Sumatera Utara
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Journal : International Journal Of Science, Technology

 1 
Utilization Of Glycerol By Product From Transesterification Of Waste Cooking Oil As A Cosurfactant In Nanocream Preparation Rani, Zulmai; Julia Reveny; Urip Harahap
International Journal of Science, Technology & Management Vol. 2 No. 4 (2021): July 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i4.264

Abstract

Waste cooking oil (used cooking oil ) is oil derived from leftover cooking oil for frying food. Waste cooking oil is still considered as waste by some people and waste cooking oil that should not be suitable for consumption is sometimes still widely reused in food processing, this can endanger health and reduce the nutritional value of food. In order to be used and have economic value, it is overcome by synthesizing waste cooking oil into glycerol so it can be used as cosurfactant. Besides as cosurfactant, this waste cooking oil glycerol also can be used for various chemical industies, foods, cosmetics, and pharmaceuticals industries. For cosmetic preparation, it can make a nanocream preparation. The purpose of this research was to utilize waste cooking oil into a glycerol which is used as a cosurfactant, to characterize the synthesis results based on IR Spectroscopy data and to formulate it to nanocream preparation. The research was conducted in an experimentally by making glycerol from side product of waste cooking oil. Separating glycerol process conducted by transesterification reaction. Glycerol of waste cooking oil by product was characterized with IR Spectroscopy and evaluated include organoleptic, glycerol contents, density, viscosity, ash content, and moisture content. Formulation of nanocream preparation using 30% of Tween 80 as surfactant, glycerol by-product as cosurfactant 7,5% concentration, and 20% of VCO as oil phase. The nanocream preparation was measured for its particle size with the aim of being able to determine the particle size of the formula to form nanoparticle size. The results showed that glycerol of waste cooking oil by product shows the presence of OH, CH-aliphatic, C=O carbonyl and C-O. particle size of nanocream preparation obtained was 397,76 nm. Based on the result of this research, the conclusion is glycerol of waste cooking oil by-product can form nano size with presence of glycerol as cosurfactant. The particle size of the nanocream preparation obtained was still in the nanocream requirement range, namely 20-500 nm.
Antibacterial Potential Of Ethanol Extract Of Tamarind Seed Bark (Tamarindus indica L.) And Formulation Of Anti-Acne Nanogel Amalyuri, Annisa Ghassani; Reveny, Julia; Dalimunthe, Aminah
International Journal of Science, Technology & Management Vol. 3 No. 3 (2022): May 2022
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v3i3.522

Abstract

Acne is a skin disease that affects a large number of sufferers. Acne occurs due to active oil glands under the skin. This activity is stimulated by androgen hormones. The active compound content of proanthocyanidin is the main compound in the ethanolic extract of tamarind seed bark, which can inhibit the growth of acne-causing bacteria, namely Propionibacterium acnes and Staphylococcus epidermidis. The purpose of this study was to formulate a nanogel from tamarind seed bark extract and test the antibacterial potential of an ethanol extract of tamarind seeds against acne-causing bacteria. The antibacterial potency test consisted of variations in concentration and was 0.5, 1, 5, 25, 50, 75, 100, 125, 150, and 300 (in mg/mL). The concentration of the formulated nanogel preparations was 2.5%, 5%, and 7.5%. The MIC results showed that the minimum inhibitory concentration (MIC) was at a concentration of 1 mg/mL with a zone of inhibition of 6.50 ± 0.44 mm (Propionibacterium acnes) and 6.40 ± 0.10 mm (Staphylococcus epidermidis). The minimum bactericidal concentration (MBC) was at a concentration of 25 mg/mL with a percentage reduction of 98.18% (Propionibacterium acnes) and 98.06% (Staphylococcus epidermidis). The results of the nanogel formulations showed that the particle sizes were 49.88 ± 0.11 nm (Formula I), 51.92 ± 0.09 nm (Formula II), and 59.13 ± 0.10 nm (Formula III). Conclusion The ethanolic extract of tamarind seed bark has effectiveness in inhibiting the growth of acne-causing bacteria and can be formulated as an anti-acne nanogel.
Formulation And Evaluation Of Nanoemulgel Clove Leaf Oil (Sygyzium Aromaticum) (L.) Merr & Perry As Anti-Acne Dasawanti, Yoan; Reveny, Julia; Sumaiyah, Sumaiyah
International Journal of Science, Technology & Management Vol. 3 No. 6 (2022): November 2022
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v3i6.681

Abstract

Acne also known as acne vulgaris, is an inflammatory condition of the polysebaceous layer that is brought on by the buildup of keratin. Active oil glands under the skin cause acne. Androgen hormones function as a stimulant for this activity. Cloves are herbal plants that contain essential oil chemicals. The chemical composition of clove leaf oil is mainly composed of eugenol. Eugenol has pharmacological effects as antibacterial, analgesic and anti-inflammatory. Nanoemulsion is a nanocarrier that gets a lot of attention, because of its small particle size so that it can be thermodynamically stable and can increase drug penetration. Recent advances in nanoemulsion research have created new prospects in a number of industries, including pharmaceuticals, biotechnology, food, and cosmetics. This research was conducted by formulating clove leaf oil into nanoemulgel preparations, followed by evaluation of the preparations and testing of antibacterial activity against acne-causing bacteria. The result of the nanoemulgel formulation is yellow, smells of clove leaf oil, is transparent and homogeneous. Nanoemulgel viscosity 3434-3109 M.Pas, pH 6.15-6.41 and particle size 12.3-13.3 nm. Physical studies of nanoemulgel been carried out for three cycles and there is no change in color, change in odor and phase separation. The results of the antibacterial activity of Staphylococcus epidermidis at NEG1 12.03 mm, NEG2 16.93 mm, NEG3 18.96 mm and EG 18.03 mm. The results of the antibacterial activity of Propionibacterium acnes at NEG1 11.50 mm, NEG2 16.16 mm, NEG3 18.03 mm and EG 17.33 mm. The results of the study concluded that clove leaf oil nanoemulgel with a concentration of 7% was the best formula, because it is stable during storage and has the greatest antibacterial activity compared to emulgel.
Co-Authors Amalyuri, Annisa Ghassani Aminah Dalimunthe Arianto, Anayanti Arianto Darmanta Bukit Dasawanti, Yoan Dharmawan, Hariyadi Ervina Syahfitri Lubis Fajriah, Nurul Fitri, Raissa Hafid Syahputra Herawaty Ginting Juanita Tanuwijaya Juwita, Nur Aira Lely Sari Lubis Maha, Hetty Lendora Masfria Masfria Masfria Muchlisyam Nasri Nazliniwaty Nazliniwaty* Rahayu, Firdha Sekar Rohani, Ade Sri Sudarmi Sumaiyah, Sumaiyah Surjanto Surjanto Suwarso, Edy Urip Harahap Wiryanto Wiryanto Yuandani Yuni Angelia Simbolon Zulmai Rani