TINJAUAN FORMULASI PENGHANTARAN NATRIUM ASKORBIL FOSFAT MELALUI PENINGKATAN LIPOFILISITAS

2021 ◽  
Vol 11 (1) ◽  
pp. 9
Author(s):  
Fith Khaira Nursal ◽  
Nining Nining
Keyword(s):  
Span 80

Telah dikembangkan pembentukan nanoemulsi senyawa hidrofilik Natrium Askorbil Fosfat melalui modifikasi sifat lipofilisitas untuk meningkatkan permeabilitas molekul kedalam kulit. Natrium Askorbil Fosfat (NAF) adalah senyawa hidrofil turunan Asam askorbat yang lebih stabil dan memiliki potensi antioksidan. Perbaikan lipofilisitas dari senyawa hidrofilik bertujuan melindungi dan mempertahankan molekul dalam fase minyak sehingga permeasi lebih baik menuju lapisan kulit. Pada penelitian ini digunakan senaywa ampifilik lesitin (soya lesitin) dan surfaktan lipofilik Span 20 dan Span 80. Tahap awal dibuat campuran NAF lesitin dan Span 20/80 melalui pembentukan emulsi air dalam minyak (A/M), kemudian dibekukan. Selanjutnyan ditentukan jumlah NAF yang terjerap dalam campuran dan diperoleh masing-masing terpartisi sebesar 73,55% (NAF-Lesitin), 63,65% (NAF-Span 20) dan 55,72% (NAF-Span 80). Sebagai pembanding dari larutan NAF hanya 0,62% terpartisi dalam minyak. Hal ini membuktikan peranan lesiitn dan Span 20/Span 80 mampu melindungi NAF dalam fase minyak. Tahap selanjutnya campuran dibentuk dalam sediaan nanoemulsi dan diperoleh distribusi ukuran diameter globul nanoemulsi NAF  ± 65 nm dan indeks polidispersitas 0,256 tanpa campuran. Sementara nanoemulsi campuran NAF-Lesitin/Span20/Span80 rentang diameter 300-450 nm dengan indeks polidispersitas diatas 0,5. Ptensi antiosidan NAF ditentukan dengan metode peredaman larutan DPPH dan diperoleh nilai peredaman 45-50%, membuktikan NAF dalam sistem campuran memliki potensi antioksidan

Synthesis of Calcium Carbonate Micro Particles using Emulsion Membrane Process Applied for Drug Release Studies

2017 ◽  
Vol 68 (10) ◽  
pp. 2320-2324
Author(s):  
Mariana Mateescu ◽  
Sanda Maria Doncea ◽  
Irina Chican ◽  
Cristina Lavinia Nistor ◽  
Ioneta Codrina Bujanca
Keyword(s):  
Light Scattering ◽  
Calcium Carbonate ◽  
Dynamic Light Scattering ◽  
Liquid Membranes ◽  
Membrane Process ◽  
Emulsion Method ◽  
Micro Particles ◽  
Release Studies ◽  
Emulsion Liquid Membranes ◽  
Span 80

The aim of this work is the synthesis of calcium carbonate (CaCO3) nano and microparticles and their application as biomaterials (vehicles) for the sustained release of doxycycline. CaCO3 micro particles were synthesized by water-in oil (W/O) emulsion method using emulsion liquid membranes with bis (2-ethylhexyl) phosphate (D2EHPA) as carrier, Span 80 as surfactant, and toluene and kerosene as organic solvents. The aqueous phases contained 1 M CaCl2, and 1 M Na2CO3, respectively. The Dynamic Light Scattering (DLS) data showed CaCO3 particles with sizes ranging from around 100 nm to 3500 nm. The CaCO3 particles with the average diameters around 600 nm attained an adsorbtion of doxycycline of maximum 97.9%, and a slow and steady release with a cumulative value of approximative 50% after ten days.

Enhanced Skin Permeation of Punicalagin after Topical Application of Pluronic Micelles or Vesicles Loaded with Lafoensia pacari Extract

Planta Medica ◽  
2021 ◽  
Author(s):  
Sandra Alves de Sousa Garcia ◽  
Priscila Bianca Rodrigues da Rocha ◽  
Bruno dos Santos Souza ◽  
Andressa Tuane Santana Paz ◽  
Ana Luiza Caetano Negris ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Skin Permeation ◽  
Sol Gel ◽  
Extraction Procedure ◽  
Average Diameter ◽  
Skin Aging ◽  
Chemical Degradation ◽  
Vertical Diffusion ◽  
Flowing Liquid ◽  
Span 80

AbstractPunicalagin, the principal ellagitannin of Lafoensia pacari leaves, has proven antioxidant activity, and standardized extracts of L. pacari can be topically used for skin aging management. We hypothesized that Pluronic nanomicelles or vesicles could solubilize sufficiently large amounts of the standardized extracts of L. pacari and provide chemical stability to punicalagin. The standardized extracts of L. pacari were obtained with an optimized extraction procedure, and the antioxidant activity was characterized. Formulations containing Pluronic at 25% and 35% were obtained with or without Span 80. They were characterized by average diameter, polydispersity index, punicalagin content, physicochemical stability, and rheology. A release and skin permeation study was carried out in vertical diffusion cells. The extraction procedure allowed quantifying high punicalagin content (i.e., 141.61 ± 3.87 mg/g). The standardized extracts of L. pacari showed antioxidant activity for all evaluated methods. Pluronic at 25 and Pluronic at 35 with standardized extracts of L. pacari showed an average diameter of about 25 nm. The addition of Span 80 significantly increased the mean diameter by 15-fold (p < 0.05), indicating the spontaneous formation of vesicles. Pluronic formulations significantly protected punicalagin from chemical degradation (p < 0.05). Pluronic at 25 formulations presented as free-flowing liquid-like systems, while Pluronic at 35 resulted in an increase of about 44-fold in |ƞ*|. The addition of Span 80 significantly reduced the Pluronic sol-gel transition temperature (p < 0.05), indicating the formation of vesicles. Formulations with Span 80 significantly enhanced punicalagin skin permeation compared to formulations without Span 80 (p < 0.05). Formulations with Span 80 were demonstrated to be the most promising formulations, as they allowed significant permeation of punicalagin (about 80 to 315 µg/cm2), which has been shown to have antioxidant activity.

Emulsification of Catalytic Pyrolysis Oil from Nanoporous Zeolite Socony Mobil-5 with Diesel Using a Range of Emulsifiers in an Ultrasonicator

2021 ◽  
Vol 21 (7) ◽  
pp. 3955-3959
Author(s):  
Abid Farooq ◽  
Young-Kwon Park
Keyword(s):  
Diesel Engine ◽  
Catalytic Pyrolysis ◽  
Ex Situ ◽  
Engine Fuel ◽  
Pyrolysis Oil ◽  
Benzene Derivatives ◽  
Stable Emulsion ◽  
Physiochemical Properties ◽  
Span 80 ◽  
Tween 60

Catalytic pyrolysis oil (CPO) was produced from lignin using the ex-situ mechanism and nanoporous HZSM-5 (SiO2/Al2O3 = 50) as a catalyst. The oil contained phenolics, esters, acids, and benzene derivatives as the major constituents. The emulsification of CPO in diesel was tested with several emulsifier combinations such as Span 80 and Tween 60, Span 80 and Atlox 4916, and Atlox 4916 and Zephrym PD3315 in the HLB range of 5.8–7.3. The HLB value of 5.8 using the combination of Span 80 and Atlox 4916 and the CPO:emulsifier:diesel ratio of 5:2:93 (wt%), provided a stable emulsion for 10 days. The physiochemical properties of that emulsion were comparable to diesel. Hence, emulsions of CPO and diesel can potentially be used as a diesel engine fuel.

Preparation and Properties Research of Anti-Fogging Polypropylene Packaging Films

2012 ◽  
Vol 262 ◽  
pp. 581-585 ◽  
Author(s):  
Xiao Jin Gao ◽  
Li Qiang Huang ◽  
Xin Li
Keyword(s):  
Silica Sol ◽  
Range Analysis ◽  
Machine Direction ◽  
Polypropylene Film ◽  
Mixture Ratio ◽  
Elongation At Break ◽  
Coated Film ◽  
Span 80 ◽  
Optimum Formula ◽  
The Relationship

The anti-fogging properties of a new anti-fogging agent containing silicon sprayed on polypropylene were discussed. The anti-fogging agent was prepared by using silicone hydride and silica sol, the new anti-fogging agent with different consistency was daubed on the polypropylene film .The contact angle, first dripping time and ten drippings time of the anti-fogging PP films were tested. According to the range analysis, the best mixture ratio, which was just the optimum formula was found. The relationship between the anti-fogging agent consistence and the anti-fogging performance was discussed too. The result showed that the anti-fogging properties of the coated film were better and the mechanical properties of the coated film enhanced in some sort. The mixture ratio of the anti-fogging agent was that the silica sol was 12phr; the span 80 was 15%; the pH was 5.5. After the film was coated, the tensile strength of machine direction raised by 109.14% than the contrast. The elongation at break of transverse direction raised by 32.51MPa and that of machine direction raised by 17.95MPa. This anti-fogging agent containing silicon was preferable to polypropylene.

CADMIUM REMOVAL USING VEGETABLE OIL BASED EMULSION LIQUID MEMBRANE (ELM): MEMBRANE BREAKAGE INVESTIGATION

2015 ◽  
Vol 75 (1) ◽  
Author(s):  
A. L. Ahmad ◽  
M. M. H. Shah Buddin ◽  
B. S. Ooi ◽  
Adhi Kusumastuti
Keyword(s):  
Vegetable Oil ◽  
Liquid Membrane ◽  
Corn Oil ◽  
Volume Ratio ◽  
Aliquat 336 ◽  
Emulsion Liquid Membrane ◽  
Cadmium Removal ◽  
Internal Phase ◽  
External Phase ◽  
Span 80

The aim of this research is to quantify the occurrence of membrane breakage in vegetable oil based Emulsion Liquid Membrane (ELM). Basically, ELM consists of three main phases; internal, external and membrane. In this work, the membrane phase was prepared by dissolving Span 80 as surfactant and Aliquat 336 as carrier in commercial grade corn oil. As a way to promote sustainable development, vegetable oil which is environmentally benign diluent was incorporated in the formulation of ELM. The influence of several important parameters towards membrane breakage were studied. They are carrier and surfactant concentration, W/O volume ratio, emulsification time, internal phase concentration as well as stirring speed. Based on the data obtained, emulsion prepared using 4 wt% Aliquat 336 and 3 wt% Span 80 resulted in the most stable emulsion with only 0.05% membrane breakage. The emulsion was produced using W/O volume ratio of 1/3 and it was homogenized with the assistance of ultrasound for 15 min. Moreover, emulsion produced able to provide a fair balance between emulsion stability and Cd(II) permeability as it able to remove 98.20% Cd(II) ions from the external phase. 

scholarly journals PENGARUH PEMBERIAN SEDIAAN MIKROEMULSI EKSTRAK DAUN KENIKIR (Cosmos caudatus) TERHADAP PENURUNAN KADAR ASAM URAT TIKUS YANG DI INDUKSI HATI AYAM

2020 ◽  
Vol 4 (1) ◽  
pp. 67-77
Author(s):  
Muhammad Yusuf ◽  
Poppy Dwi Citra Jaluri ◽  
Yogie Irawan
Keyword(s):  
Coconut Oil ◽  
Tween 80 ◽  
Virgin Coconut Oil ◽  
Cosmos Caudatus ◽  
Span 80

Hiperurisemia adalah keadaan dimana terjadi peningkatan kadar asam urat dalam darah diatas normal. Tanaman kenikir (Cosmos caudatus) merupakan tanaman yang banyak dijumpai di lingkungan sekitar, serta tanaman yang sudah tidak asing lagi dan telah banyak dikonsumsi sebagai sayuran. Salah satu kandungan dalam kenikir adalah senyawa golongan flavonoid. Pada penelitian ini mikroemulsi ekstrak kenikir digunakan untuk menurunkan kadar asam urat pada tikus yang diinduksi hati ayam. Mikroemulsi dibuat dengan menggunakan virgin coconut oil (VCO) sebagai fase minyak, Tween 80 dan Span 80 sebagai surfaktan dan gliserin sebagai kosurfaktan. Penelitian menggunakan 15 ekor tikus putih jantan galur wistar yang diinduksi jus hati ayam. Tikus dibagi menjadi 3 kelompok, yaitu kelompok kontrol negatif mikroemulsi placebo, kontrol positif mikroemulsi Allopurinol 3,6 mg/200 g BB tikus, serta kelompok perlakuan mikroemulsi daun kenikir  10 mg/200 g BB tikus yang diberikan secara peroral. Pengukuran kadar asam urat dilakukan pada hari ke-0 (kadar awal), hari ke-7 (kadar setelah induksi) dan hari ke-13(kadar setelah perlakuan). Persen penurunan kadar asam urat dalam darah dianalisis secara statistika dengan taraf kepercayaan 95%. Hasil uji statistika menyatakan ada perbedaan antara kelompok kontrol negatif dan positif dengan kelompok perlakuan mikroemulsi daun kenikir memiliki nilai signifikansi 0,000. Sehingga mikroemulsi daun kenikir dapat menurunkan kadar urisemia tikus yang diinduksi ekstrak hati ayam namun memiliki kemampuan yang tidak sebaik mikroemulsi allopurinol. Kata Kunci : Mikroemulsi, Kenikir (Cosmos Caudatus), Hiperurisemia, Ekstrak Hati Ayam, Allopurinol.

scholarly journals Optimization of HIB Value Combination of Tween 60 and Span 80 on Cream Formulation of Ethanol Extract of Green Tea Leaves (Camellia Sinensis L.)

2018 ◽  
Vol 23 (3) ◽  
pp. 124
Author(s):  
Fransiska Lisa Anindya Putri ◽  
Akhmad Kharis Nugroho ◽  
Erna Prawita Setyowati
Keyword(s):  
Antioxidant Activity ◽  
Green Tea ◽  
Camellia Sinensis ◽  
Ethanol Extract ◽  
Tea Leaves ◽  
Lattice Design ◽  
Dpph Method ◽  
Green Tea Leaves ◽  
Span 80 ◽  
Tween 60

Green tea (Camellia sinensis L.) is known to have ability to protect skin against free radicals. This is supported by polyphenol compound catechin. This research aims to determine the optimum Hydrophilic-Lipophilic Balance (HLB) value of Tween 60 and Span 80 compositions on the optimum cream formula of ethanol extract of green tea leaves. Tea leaves are extracted by macerating using 70% ethanol. Catechin in extract is known from Thin Layer Chromatography (TLC) test with silica gel 60 F254 as stationary phase and ethyl acetate:aquadest:formic acid (18:1:1 v/v) as mobile phase. Antioxidant activity is determined by 2,2-Diphenyl-1-picryhydrazyl (DPPH) method and value of Inhibition Concentration 50% (IC50) is then calculated. Formula optimization using Design Expert® version 7.1.5 (DX 7) software, Simplex Lattice Design (SLD) method with two components Tween 60 and Span 80. Cream is characterized according to physical properties organoleptic, homogeneity, viscosity, pH, spreadability, adhesiveness, and cream type. The optimum formula obtained is then tested for physical stability for 4 weeks at room temperature (28±2°C) and data are statistically analyzed using one-way ANOVA. The extract contains catechin proved with Retention factor (Rf) value 0.8 and has antioxidant activity with IC50 value 56.35 ppm. 6.4% Tween 60 and 3.6% Span 80 result an optimum HLB value 11.1. It has viscosity 2897.50±35.94 mPa.s, spreadability 18.44±0.06 cm2, adhesiveness 0.85±0.05 seconds, and pH 4.530±0.002. Statistical test shows that the cream is significantly altered at pH, but does not significantly change in viscosity, spreadability, and adhesiveness after being stored for 4 weeks.

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