scholarly journals Evaluasi Penggunaan Etanol dan Surfaktan Tween 80 dalam Melarutkan Vitamin E pada Bahan Pengencer Sperma Andromed

2021 ◽  
Vol 2 (2) ◽  
pp. 125-129
Author(s):  
Labib Abdillah ◽  
Sigit Bintara ◽  
Dyah Maharani ◽  
I Gede Suparta Budisatria
Keyword(s):  

Penelitian ini dirancang untuk menguji bioavailabilitas vitamin E yang dilarutkan dengan menggunakan pelarut yang berbeda, yaitu surfaktan tween 80 dan etanol pada bahan pengencer semen Andromed. Perlakuan yang diberikan pada penelitian ini adalah bahan antioksidan vitamin E dan bahan pelarut minyak yang terbagi dalam kelompok Andromed kontrol (P0), Andromed  Vit E (0.2 gr) + etanol (P1), Andromed vit.E (0.2 gr) + tween 80 (P2), Andromed vit. E (0.4 gr) + etanol (P3) dan Andromed Vit. E (0.4 gr) + tween 80 (P4). Metode penelitian menggunakan pendekatan eksperimental, dan dianalisis secara deskriptif. Vitamin E dikombinasikan dengan pelarut sesuai perlakuan yang selanjutnya disebut sediaan vitamin E. Sediaan vitamin E kemudian dicampurkan kedalam bahan pengencer.  Sampel bahan pengencer tersebut dianalisis menggunakan analisis DPPH untuk mengukur aktivitas dari vitamin E di dalam bahan pengencer semen. Hasil penelitian menunjukkan nilai aktivitas antioksidan bahan pengencer yang diberikan kombinasi Vit. E dan tween 80 paling tinggi sebesar 91.29% sedangkan bahan pengencer dengan kombinasi Vit. E dan etanol aktivitas antioksidan tertingginya sebesar 57.45% dan hasil paling rendah pada bahan pengencer control tanpa penambahan vitamin E. Tween 80 sebagai pelarut vitamin E memiliki kemampuan yang lebih baik dalam melarutkan vitamin E dalam bahan pengencer semen jika dibandingkan dengan etanol.

2018 ◽  
Vol 1 (2) ◽  
pp. 391-397
Author(s):  
Nurul Anisha Hakim ◽  
Anayanti Arianto ◽  
Hakim Bangun

Minyak zaitun ekstra murni mengandung berbagai antioksidan dan vitamin E yang mencegah penuaan kulit. Nanoemulsi yang mengandung minyak zaitun ekstra murni merupakan cara yang efektif untuk pelepasan bahan aktif dikarenakan ukuran dropletnya yang kecil, dan dapat dengan mudah berpenetrasi ke dalam kulit. Tujuan dari penelitian ini adalah untuk memformulasi dan mengevaluasi nanoemulsi minyak zaitun sebagai anti-aging.nanoemulsi anti-aging dibuat dari tiga formula menggunakan minyak zaitun ekstra murnidan variasi konsentrasi tween 80 dan sorbitol yaitu formula F1 (24% dan 36%); F2 (25% dan 35%); and F3 (26% dan 34%). Kemudian dilakukan uji stabilitas terhadap sediaan nanoemulsi tersebut selama penyimpanan 12 minggu pada suhu kamar dan ditentukan perbandingan aktivitas anti-aging dari sediaan nanoemulsi and emulsi. Hasil menunjukkan bahwa nanoemulsi minyak zaitun ekstra murni berwarna jernih dan transparan. Stabiltas dari nanoemulsi menunjukkan bahwa formula F2 adalah yang paling stabil selama penyimpanan 12 minggu pada suhu kamar, tidak terdapat perubahan pada uji sentrifugasi dan mempunyai ukuran droplet yang paling kecil (189,82 nm) dan aktivitas anti-aging nya lebih baik dibandingkan dengan emulsi setelah pemakaian sediaan selama 4 minggu.


2018 ◽  
Vol 23 (2) ◽  
pp. 84
Author(s):  
Liza Pratiwi ◽  
Achmad Fudholi ◽  
Ronny Martien ◽  
Suwidjiyo Pramono

The mangosteen peels (Garcinia mangostana L.) has high free radical scavengers activity. This study aims to determine the physical and chemical conditions that are formulated in SNEDDS and nanoemulsion preparations. SNEDDS was made with various concentrations of Tween 80, PEG 400, and Virgin Coconut Oil (VCO) with a ratio of 4,98:1,02:1. Nanoemulsions were made with the addition of water to SNEDDS. Stability observation results were analyzed by statistics. The results of physical stability test show that all test samples in the research, in nanoemulsion, SNEDDS fraction, base SNEDDS, SNEDDS vitamin E did not undergo separation, precipitation, cracking, and creaming. On the chemical stability test of nanoemulsion and SNEDDS fraction there is no difference between IC50 before and after storage. While on basic SNEDDS and vitamin E nanoemulsion there is a difference between IC50 before and after storage.


2021 ◽  
Vol 50 (2) ◽  
pp. 429-436
Author(s):  
Tzer Sien Tan ◽  
Muhammad Firdaus Sathik Rahman ◽  
Siti Sara Ismail ◽  
Nur Najihah Mohamad ◽  
Ahmad Hazim Mustaffa ◽  
...  

Vitamin E is an established antioxidant. However, the effect of vitamin E on healthspan, which deteriorates during ageing, has not been determined because most related studies have emphasized its effects on lifespan. Therefore, the purpose of this study was to determine the effect of palm tocotrienol-rich fraction (TRF) on the lifespan, locomotion and thermotolerance of Caenorhabditis elegans, which share many common gene sequences with humans. The nematodes were treated with different concentrations of TRF (0 - 200 μg/mL), and the number of surviving nematodes at each concentration (N=30, duplicate) was counted daily under a light microscope to determine the optimal dose of treatment. The nematodes were divided into 3 groups, namely; control, Tween-80 (vehicle) and TRF-treated. Locomotion and thermotolerance were determined on day 4 and 12 of treatment in adult nematodes. ImageJ was used for locomotion analysis, and thermotolerance was determined based on nematode survivals after exposure to 37 °C. TRF-treated C. elegans had significantly longer lifespans compared to controls (P = 0.003). The TRF group (50 μg/mL) had the longest mean lifespan (23.5 days), which was significantly longer compared to controls, (18.5 days; (P = 0.002). However, locomotion was similar between all groups. In the thermotolerance assay, the survival determined on day 4 and day 12 of TRF-treatment was higher compared to controls (P= 0.046). Interestingly, the Tween- 80-treated group showed similar results as the TRF-treated group compared to controls. The findings indicate that TRF prolongs the lifespan and increases the thermotolerance of C. elegans but does not improve the locomotion of the worms as they age.


2021 ◽  
Vol 17 (2) ◽  
pp. 153-163
Author(s):  
Oladapo A. Adetunji ◽  
Tobilola O. Akingbade

In this study, the stabilizing potential of corn starch acidified with hydrochloric acid (ACS) in comparison with Tween 80® was evaluated in vitamin E enriched coconut emulsions for use in extemporaneous topical formulations. Emulsions containing vitamin E and coconut oil (2:3) as lipid phase and different concentrations (1.5 – 5.0 %w/w) of ACS (or Tween80®) in phosphate buffer as aqueous phase were formulated at 27± 2 ⁰C. , Droplet sizes and shapes, pH and rheological properties were evaluated. Acidified CS was analysed using FTIR spectroscopy Emulsions stabilized with ACS and Tween80® were cream and yellow coloured respectively, with the intensity of the colour increasing as the concentration increased. The emulsions were non-offensive and easily re-dispersed on shaking. Emulsions containing ACS had larger droplet sizes (18.34± 1.14 - 33.27± 1.32 µm) and were more spherically shaped with higher pH values(6.80-6.95), showing dilatant and pseudoplastic flows at low and high shear rates respectively. The viscosity of emulsions  stabilized at 2.5 %w/w and 5.0 %w/w remained unchanged after seven days. Acidified corn starch has stabilizing potentials comparable with Tween 80® when incorporated in vitamin E enriched coconut oil emulsions for extemporaneous topical formulations. Keywords: Coconut oil emulsions; Vitamin E; Acidified corn starch; Tween80®; Viscosity Emulsion stability, Extemporaneous topical formulations


2018 ◽  
Vol 1 (3) ◽  
pp. 099-105
Author(s):  
Nita Tirmiara ◽  
Anayanti Arianto ◽  
Hakim Bangun

Vitamin E merupakan salah satu bahan yang dapat melindungi kulit dari berbagai kerusakan kulit yang disebabkan radikal bebas seperti kulit menjadi kering dan berkeriput yang dapat menyebabkan penuaan dini. Bentuk sediaan nanoemulsi gel sangat bermanfaat digunakan sebagai anti-aging kulit karena memiliki kestabilan yang tinggi dengan ukuran partikel yang kecil dan penetrasi dari bahan aktif ke kulit yang lebih mudah. Penelitian ini bertujuan untuk memformulasikan vitamin E dalam sediaan nanoemulsi gel dan mengevaluasi aktivitas anti-aging kulit dari sediaan. Nanoemulsi gel diformulasi dalam 3 formula yaitu F1, F2 dan F3 dengan variasi jumlah vitamin E (1%, 3%, dan 5%), sebagai fase minyak adalah minyak zaitun, Tween 80 sebagai surfaktan dan sorbitol sebagai ko-surfaktan dengan basis gel karbopol 940. Evaluasi stabilitas sediaan nanoemulsi gel meliputi uji sentrifugasi, homogenitas, pengukuran viskositas, pH, pengamatan organoleptis dan pengukuran ukuran partikel dan evaluasi aktivitas anti-aging sediaan nanoemulsi gell dari formula terpilih, Semua formula nanoemulsi gel berwarna kuning transparan, stabil selama penyimpanan 12 minggu pada suhu kamar dan formula F3 menunjukkan ukuran partikel yang paling kecil yaitu 129,90 nm dan 492,93 nm setelah penyimpanan 12 minggu pada suhu kamar dan tetap stabil, sedangkan emulsi gel terjadi pemisahan fase (tidak stabil). Hasil aktivitas anti-aging sediaan nanoemulsi gel lebih baik dibandingkan sediaan emulsi gel dalam hal peningkatan kadar air, pengecilan pori, pengurangan noda dan jumlah keriput pada kulit. Kesimpulan dari penelitian adalah sediaan nanoemulsi gel vitamin E lebih stabil dan memiliki aktivitas anti-aging yang lebih baik dibandingkan dengan sediaan emulsi gel.   Vitamin E is acompound that can protect the skin from various skin damage caused by free radicals such as dry and wrinkled skin which can cause premature aging. Nanoemulsion gel dosage form is very useful to be used as anti-aging skin because it has high stability with small particle size and easier penetration of active ingredients to the skin.This study aimed to formulate vitamin E in nanoemulsion  geldosage form and evaluate its skin anti-aging activity. Nanoemulsion gel was formulated in 3 formulas namely F1, F2 and F3 with various amount of vitamin E (1%, 3% and 5%), as oil phase was olive oil, Tween 80 as surfactant and sorbitol as co-surfactant with carbopol gel base 940.The stability evaluation of nanoemulsion gel dosage form included centrifugation, homogeneity, viscosity, pH, organoleptic observation and particle size measurement and evaluation of anti-aging activity of nanoemulsion gel from selected formulas, all transparent nanoemulsion gel formulas were yellow in colour, stable for 12 weeks storage at temperature rooms and F3 formulas showed the smallest particle size of 129.90 nm and 492.93 nm after 12 weeks of storage at room temperature and remain stable, while the  emulsion gel was separated (unstable).The results showed that anti-aging activity of nanoemulsion gel were better than emulsiongel in terms of increased moisture content, pore reduction, reduction of stains and the amount of wrinkles on the skin. It can be concluded that that the vitamin E nanoemulsion gel is more stable and has better anti-aging activity compared to the emulsion gel.


2014 ◽  
Vol 10 (4) ◽  
pp. 633-643 ◽  
Author(s):  
Joseph Hategekimana ◽  
Miriam Kisamba Bwengye ◽  
Kingsley George Masamba ◽  
Wallace Yokoyama ◽  
Fang Zhong

Abstract Vitamin E (VE) is highly susceptible to autoxidation; therefore, it requires systems to encapsulate and protect it from autoxidation. In this study, we developed VE delivery systems, which were stabilized by Capsul® (MS), a starch modified with octenyl succinic anhydride. Influences of interfacial tension, VE viscosity, molecular weight distribution, and surfactant type (MS versus Tween 80) on stability and droplet size obtained by high-pressure homogenization were investigated. Both surfactants reduced interfacial tension and small droplet diameters (<350 nm) were produced at high VE content (80% oil phase, w/w) and low emulsifier (2.5%, w/w), which was attributed to their molecular distribution and interfacial characteristics and the magnitude of disruptive forces generated within homogenizer. MS nanoemulsions were stable to droplet coalescence at high temperature–short time exposure (30, 55, 80°C; 30 min). Results indicated that MS can be used successfully to stabilize VE nanoemulsions at ambient temperatures. Such nanoemulsions may be incorporated in many food products.


1977 ◽  
Vol 55 (3) ◽  
pp. 601-608 ◽  
Author(s):  
F. R. Engelhardt

Plasma and tissue levels of dietary radiotracer-labelled tocopherols were examined in the harp seal, Phoca groenlandica. The d-α form showed much higher plasma maxima and retention than d,l-γ-tocopherol. Concentration peaks occurred somewhat later but were greater when the vitamin was fed with Tween 80 than with herring and corn oil respectively. Greater plasma levels occurred with the use of herring oil as compared with corn oil. Seals previously maintained on a vitamin E deficient diet showed greater plasma maxima than seals not so deprived. Plasma and tissues generally showed maximum levels within 24 h postingestion. Tissue levels of labelled dietary α-tocopherol were examined by biopsy and postmortem studies in selected tissues of vitamin E deprived seals.


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