Effect of an Ethanol Extract from Summer Savory (Saturejae hortensisL) on the Stability of Sunflower Oil at Frying Temperature

1997 ◽  
Vol 74 (4) ◽  
pp. 524-530 ◽  
Author(s):  
Nedyalka V Yanishlieva ◽  
Emma M Marinova ◽  
Ilko N Marekov ◽  
Michael H Gordon
Keyword(s):  
Sunflower Oil ◽  
Ethanol Extract ◽  
Frying Temperature ◽  
The Stability

Formulation and Stability Test of Lip Cream Preparation of Kenop Flower Ethanol Extract (Gomphrena globosa L.)

2021 ◽  
Vol 3 (2) ◽  
Author(s):  
Mevi Irianti Tonapa ◽  
Rani Dewi Pratiwi ◽  
Elsye Gunawan
Keyword(s):  
Ph Value ◽  
Ethanol Extract ◽  
Stability Test ◽  
Gomphrena Globosa ◽  
Homogeneous Composition ◽  
Semi Solid ◽  
The Stability ◽  
Ph Range ◽  
Average Dispersion ◽  
Brown Color

Kenop Flower (Gomphrena globosa L.) is used in the manufacture of lip cream because contains betacyanin pigments that function as color pigments. This study aims to determine the physical quality and stability of the lip cream preparation of the ethanol extract of kenop flower (Gomphrena globosa L.). This research was conducted experimentally, including the manufacture of lip cream formulations with ethanol extract of kenop flower (Gomphrena globosa L.) with a concentration of 10%. The results of the physical examination test for lip cream preparations for all preparations have a distinctive vanilla aroma with a semi-solid texture, F0 has ivory white color and F1-F3 has a brown color. The preparations had a homogeneous composition, average pH 6-7, had good greasing power, 5.0-5.8 average dispersion and 60.33-66.67 seconds average adhesion. The stability test carried out on day 28 found that all preparations were stable, had a distinctive vanilla aroma with a semi-solid texture, F0 had ivory white color and F1-F3 had a brown color. The preparation has a homogeneous composition; the average pH is 6-7. Where the lip cream formulas F1 and F3 decreased the pH value on the 28th day from 7 to 6 but tended to be stable and in the pH range that matched the lip pH. And there is no phase separation in all formulas.

scholarly journals FORMULATION, STABILTY TEST AND ENZYME ACTIVITY TEST TYROSINASE OF CREAM PEPARATIONS FROM HERENDONG FRUIT EXTRACT(Melastoma affine D. Don)

2020 ◽  
Vol 5 (2) ◽  
pp. 149-173
Author(s):  
Zuraida Sagala ◽  
Kurnia Telaumbanua
Keyword(s):  
Enzyme Inhibitors ◽  
Enzyme Inhibitor ◽  
Mechanical Test ◽  
Ethanol Extract ◽  
Activity Test ◽  
Irritation Test ◽  
Ic50 Values ◽  
Tyrosinase Enzyme ◽  
Ethanol Extracts ◽  
The Stability

One way to prevent or inhibit melanin formation is by inhibiting tyrosinase activity (Lloyd,2011). Tyrosinase enzyme is an enzyme that plays a role in the formation of skin pigments or known as melanogenesis. In the process of melanogenesis, the enzyme tyrosinase acts as a catalyst in two different reactions, namely the hydroxylation process of tyrosine to dihydroxy-phenylalanine (L-DOPA) and oxidation of L-DOPA to quinone DOPA. Tyrosinase in skin tissue is activated by solar UV radiation so that it accelerates the process of melanin production (Fais et al.  2009).  This  study  was  conducted  to  determine  the  stability,  effectiveness  of  cream preparations from ethanol extracts of Harendong fruit (Melastoma affine D. Don) as tyrosinase enzyme inhibitors so it can be used as a cosmetic ingredient for whitening or skin lightening. Results Cream with variants of Harendong (Melastoma affine D. Don) ethanol extract was physically stable and formulated with organoleptic test, homogeneity, viscosity, mechanical test, pH, cycling test, and irritation test. Type M / A cream preparations from ethanol extract of Harendong fruit (Melastoma affine D. Don) have a strong / moderate tyrosinase enzyme inhibitor activity with IC50 values of F1 (1%) of 526,192 ppm, F2 (1.5%) ) amounted to 317,534 ppm and F3  (2%)  amounted  to  128,523  ppm.  Keywords: Foemulation,  stability test, activity test, tyrosinase enzyme, herenong fruit (Melastoma affine G.Don)

scholarly journals Conditioning of Praziquantel and Florfenicol for some Heterologous Coinfections of Farmed Carp

2019 ◽  
Vol 70 (7) ◽  
pp. 2404-2409
Author(s):  
Andrei Cristian Lupu ◽  
Mihaela Bombos ◽  
Cristian Alin Barbacariu ◽  
Constantin Roman ◽  
Raluca Mindru ◽  
...  
Keyword(s):  
Controlled Release ◽  
Sunflower Oil ◽  
Castor Oil ◽  
Water Diffusion ◽  
Route Of Administration ◽  
Effective Alternative ◽  
Sorbitan Monooleate ◽  
Fish Diseases ◽  
The Stability

Coinfections can alter the course and severity of different fish diseases. Suspensions of praziquantel (PZQ) and florfenicol (FFC ) based on sunflower oil can be an effective alternative for treating fish coinfections. The use of polyoxyethylene (20) sorbitan monooleate in the presence of ethoxylated castor oil in the preparation of PZQ and FFC suspensions has improved the stability of these suspensions. This PZQ and FFC preparation can be used in the treatment of parasitic/bacterial heterologous coinfections. The suspension of the PZQ and FFC preparation can be administered by water-diffusion, having a controlled release. The compounds are biodegradable and the route of administration remains safe for the environment.

scholarly journals Antioxidant activities of allspice extracts in rapeseed oil

2000 ◽  
Vol 18 (No. 2) ◽  
pp. 49-51 ◽  
Author(s):  
D.V. Nguyen ◽  
M. Takácsová ◽  
M.N. Dang ◽  
K. Kristiánová
Keyword(s):  
Rapeseed Oil ◽  
Antioxidant Activities ◽  
Ethanol Extract ◽  
Chloroform Extract ◽  
Antioxidant Effect ◽  
Hexane Extract ◽  
Antioxidant Effectiveness ◽  
The Stability ◽  
Benzene Extract

Spices are an important component of both commercial and homemade foods. Many spices have been shown to possess an antioxidant effect. In our study, we tested the activity of different allspice extracts (ethanol, chloroform, diethylether, benzene and hexane) on the stability of rapeseed oil. The order of antioxidant effectiveness was as follows: ethanol extract > chloroform extract> diethylether extract > benzene extract > hexane extract. The ethanol extract exhibited a remarkable antioxidant effect.

scholarly journals Monitoring the stability of fortified cold-pressed sunflower oil under different storage conditions

10.5219/1348 ◽  
2020 ◽  
Vol 14 ◽  
pp. 887-892
Author(s):  
Dani Dordevic ◽  
Simona Jancikova ◽  
Alexandra Lankovova ◽  
Bohuslava Tremlova
Keyword(s):  
Product Development ◽  
Peroxide Value ◽  
Sunflower Oil ◽  
Oxidation Stability ◽  
Storage Conditions ◽  
Human Consumption ◽  
Primary Products ◽  
Oil Mixtures ◽  
The Stability ◽  
Cold Pressed

The aim of the study was to evaluate the stability of cold-pressed sunflower oil mixed with different seeds and herb. The seeds and herb were added at 1% and 5% concentrations; samples were divided into 2 groups: stored in the dark and light. The primary products of oxidation and chlorophyll content were monitored during 3 months of storage. The results showed very low oxidation stability of experimentally produced cold-pressed oil mixtures/dressings, especially during storage on the light. The samples with 5% of hemp herb addition showed the best stability since they have peroxide value under 20 mekv O2.kg-1, both in the dark and on the light. Other samples, both stored in the dark and on light, were declared as not for human consumption due to high oxidative product development. The research represents an important storability evaluation of products that can be found on the market and that can be found very attractive for consumers.

scholarly journals Production of biosurfactants using Egyptian soil fungi

2021 ◽  
Author(s):  
Shimaa R. Hamed ◽  
Raed S. Al-Wasify ◽  
Samar Ragab
Keyword(s):  
Sunflower Oil ◽  
Soil Fungi ◽  
Corn Oil ◽  
Enhancement Effect ◽  
Waste Frying Oil ◽  
Fungal Isolates ◽  
Local Soil ◽  
Wide Range ◽  
The Stability ◽  
Promising Source

Abstract Soil fungi have unique physiological and metabolic features, and are considered as an important source of biomolecules. The present research aims to study the ability of local soil fungal isolates for the production of biosurfactants and to study the stability of these biosurfactants under different temperatures (50, 70, 90, 110, and 121 ºC), different pH values (2, 3, 6, 10, 12, and 15), and different salinity concentrations (5, 10, 15, 20, and 25% NaCl) depending on the formation of clear zone using oil displacement area (ODA) test. The research also aims to study the enhancement effect of four vegetable oils including sunflower oil, waste frying oil, olive oil, and corn oil on the activity of the produced biosurfactants. The obtained results showed that Aspergillus flavus, Aspergillus wentii and Fusarium sp. had the maximum biosurfactants production. The stability of biosurfactants occurred at alkaline pH, wide range of temperatures, and under high salinity (15%). Sunflower oil had the maximum enhancement effect on the activity of the produced biosurfactants, while corn oil showed lower enhancement effect. Depending on the obtained results, it can be concluded that local soil fungal isolates are considered as a promising source for production of biosurfactants.

scholarly journals Effect of antioxidants on stability, nutritional values of refined sunflower oil during accelerated storage and thermal oxidation in frying

2012 ◽  
Vol 47 (2) ◽  
pp. 223-230 ◽  
Author(s):  
H Akhtar ◽  
I Tariq ◽  
S Mahmood ◽  
S Hamid ◽  
R Khanum
Keyword(s):  
Elevated Temperature ◽  
Thermal Oxidation ◽  
Sunflower Oil ◽  
Antioxidant Activities ◽  
Protective Effects ◽  
Pet Bottles ◽  
Frying Process ◽  
Accelerated Storage ◽  
Sunflower Oils ◽  
The Stability

Untreated sunflower oil (without antioxidants) was much more affected during long storage as well as by the thermal oxidation in 4 hours  frying process. The shelf life of oil was increased both during storage and in frying process at elevated temperature by the addition of synthetic  antioxidants. TBHQ (Tertiory butyl hydroquinone) BHT (Butylated hydroxyl toluene) BHA (Butylatd hydroxyl amine) and the mixture  of BHA and BHT used in the present study in 0.02, 0.02, 0.02 and 0.01+0.01 amount respectively to observe the stability of refined  sunflower when stored at 30°C for 21 weeks in transparent PET bottles. The stored oils (treated and untreated) when underwent in the  process of frying at the temperature of 180°C further deterioration of oils happened. The antioxidant activities and protective effects in stabilization  of sunflower oils during storage and in frying process measured in terms of POV (peroxide), FFA (free fatty acids), p-AnV (p- Anisidine value), Colour Index, RI (Refractive index), and fatty acid profile. Result indicated that TBHQ exhibited stronger antioxidant  activity during storage and gave maximum protection against thermal oxidation when oil subjected in the process of multiple frying for continous  four hours at elevated temperature. The results were indicated the effectiveness of antioxidants in the order like TBHQ > BHT > BHA  BHA+BHT. DOI: http://dx.doi.org/10.3329/bjsir.v47i2.11458 Bangladesh J. Sci. Ind. Res. 47(2), 223-230, 2012

Formulation and Stability Test of Cream Ethanol Extract Senduduk Leaves (Melastoma malabatricum L.) On Burn Healing of Male White Mice

2020 ◽  
Vol 11 (4) ◽  
pp. 7973-7979
Author(s):  
Sri Hainil ◽  
Delladari Mayefis ◽  
Alvin Kurniawan
Keyword(s):  
Leaf Extract ◽  
Wound Closure ◽  
Ethanol Extract ◽  
Average Diameter ◽  
Metal Plate ◽  
Heat Sources ◽  
Melastoma Malabathricum ◽  
Healing Wounds ◽  
The Stability ◽  
Characterization Test

Burns are tissue damage caused by contact with heat sources such as fire, chemicals, electricity and radiation. This study aims to find a new burn drug from senduduk leaves (Melastoma malabathricum L.) with a form of standard cream preparation type M/A. The viscous extract of the leaves of senduduk is carried out by a characterization test and screening test, then formulated in the form of cream with a concentration of 2.5%, 5%, and 7.5%. Standard cream type M/A formulated with senduduk leaf extract was evaluated and tested for the stability of the preparation. Mice were burnt with a heated metal plate, then smeared with the cream of senduduk leaf extract and the diameter was measured using a calliper by measuring the four sides of the wound diameter and averaging it to obtain the proportion of wound closure. The percentage of wound closure was analyzed at D-1 to D-11 treatment. The results showed that the ethanol extract of senduduk leaf cream preparation with a concentration of 7.5% was more effective in healing burns with an average diameter of 0.20 cm of final burns and the proportion of wound healing was 99% compared to the concentration of senduduk leaf extract cream preparation which was other. The results of the burn test showed that the ethanol extract of senduduk leaf cream with a concentration of 7.5% was efficacious in healing wounds in mice.

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