• Journal of the Korean Applied Science and Technology
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• v.29 no.4
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• pp.585-593
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• 2012

The EO separation and quantitative determination of polysorbate 20, polysorbate 40, polysorbate 60 and polysorbate 80 was carried out by reversed phase HPLC. The water/acetonitrile was used for the mobile phase of gradient conditions. An YMC Pack Ph ($250mm{\times}4.6mm$ i.d., $5{\mu}m$) and Phenomenex C4 ($250mm{\times}4.6mm$ i.d., $5{\mu}m$) and the selected ELSD detector was applied. The analysis results of HPLC showed good linearity with correlation coefficient of $r^2$=0.997 in the rage of $180.2{\sim}980.5{\mu}g/mL$ and detection limit.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.34 no.3
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• pp.175-181
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• 2008

Cellolose nanoparticles loaded with retinyl palmitate were prepared by modified spontaneous emulsification solvent diffusion method. We used polysorbate 20, polysorbate 60, and PPG-26-Buteth-26/PEG-40 Hydrogenated castor oil as dispersion medium. The optimum condition for particle size of cellulose nanoparticles was 1w/v% ethyl cellulose with, 3w/v% polysorbate 60 solution. And The optimum condition for leading amount of retinyl palmitate of cellulose nanoparticles was 2w/v% ethyl cellulose with 1w/v% polysorbate 60 solution. Also, we found that this optimum condition can be applicable to other active compounds.

• Korean Journal of Food Science and Technology
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• v.31 no.4
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• pp.1029-1034
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• 1999

To enhance the cleaning and sterilization effect of cooled electrolyzed acid water on lettuce, several kinds of polysorbates were used at various concentrations in immersion washing process. In case of the treatment containing polysorbate 20, coliform count of lettuce was reduced to about 1/40 level of that in non-treated lettuce. The treatment containing polysorbate 60 did not show a significant sterilization effect. Otherwise, the total and coliform counts of lettuce during immersion in electrolyzed acid water containing 1 ppm of polysorbate 80 was reduced to about 1/300 and 1/1,700 level of those in non-treated one. And, the changes of ORP(oxidation-reduction potential), pH and color value of lettuce in electrolyzed acid water containing 1 ppm of polysorbate 80 were not quite different during 60 min. immersion, but HCIO content decreased from 10.28 ppm to 8.51 ppm after 20 min. immersion. Also, total and coliform count of lettuce immersed in electrolyzed acid water containing 1 ppm of polysorbate 80 was lower to about 1/1,800 after 20 min. and 1/5,550 after 30 min, compared with non-treated lettuce.

• Journal of the Korean Applied Science and Technology
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• v.24 no.2
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• pp.160-166
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• 2007

The rheological properties and surface tensions of polymer solutions and polymer-surfactant mixed solutions were investigated. The polymers used in this study were a homopolymer of acrylic acid crosslinked with an allyl ether of pentaerythritol, an allyl ether of sucrose, or an allyl ether of propylene (CARBOMER), acylate/C10-30 alkyl acylate crosspolymer (AAAC), and ammonium acryloydimethyltaurate/VP copolymer (ADTV). A solubilizing agent PEG-40 hydrogenated castor oil (HCO-40) and an emulsifying agent polyoxyethylene (20) sorbitan monostearate (POLYSORBATE 60) made the micelles intervening between AAAC polymers, resulting in the increase of viscosity. However, HCO-40 made this behavior over the wider range of surfactant concentration than POLYSORBATE 60. From the view point of surface tensions in the same range of surfactant concentration, AAAC/HCO-40 solution showed the area of increasing surface tension with surfactant concentration in contrast to the AAAC/POLYSORBATE 60 solution showing no increasing area.

• YAKHAK HOEJI
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• v.31 no.3
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• pp.189-196
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• 1987

This study was carried out to investigate the effect of surfactant on the dissolution of relatively hydrophilic drugs, such as sulfanilamide (SF) and sulfacetamide (SFA) granules prepared by wet granulation. The additive incorporated in the granules is starch or microcrystalline cellulose(MCC) as an excipient, PVP as a binder, and polysorbate 80 (P-80) as a surfactant. The dissolution characteristics of SF and SFA granules in distilled water were as follows: The values of T$_{75%}$ were 4.60 and 2.50min, respectively for SF and SFA granules. Incorporation of 0.1% P-80 in SF granule ratarded the dissolution of SF as compared with control, but addition of 0.1% P-80 to SFA granule improved the dissolution of SFA in comparison with control. In SF and SFA granules formulated with either starch or PVP, the release of the drug was increased as compared with control. In SF granule, the dissolution of the drug was further reduced by the inclusion of P-80 in the granule containing starch or PVP. Incorporation of P-80 in SFA granule with starch or PVP affected little on the dissolution of the drug. Addition of a nonswelling excipient, MCC decreased the dissolution rate of SF and SFA granules. as compared with each control. The presence of P-80 in these granules made the dissolution rate slower in comparison with the granules containing only MCC.

• Journal of the Society of Cosmetic Scientists of Korea
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• v.33 no.1 s.60
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• pp.7-10
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• 2007

The interaction between polymers and surfactants was investigated by means of rheological and surface tension measurements. The polymers used in this study were acrylates/$C_{10-30}$ alkyl acrylate crosspolymer (AC) and ammonium acryloyldimethyltaurate/VP copolymer (AV). And the surfactants were PEG-40 hydrogenated castor oil (HC) and polysorbate 60 (P60). HC and P60 made the micelles intervening between AC polymers, resulting in the increase of viscosity. However, HC showed a similar behavior over the wider range of surfactant concentration than P60. Regarding of surface tensions in the same range of surfactant concentration, AC/HC solution showed the area of increasing surface tension with surfactant concentration in contrast to the AC/P60 solution showing no increasing area. It is assumed that the micelles between AC/HC were formed so cooperatively and strongly that the surfactants located at the surface originally moved to the micelles.

• Korean journal of food and cookery science
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• v.10 no.1
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• pp.8-12
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• 1994

The effects of small molecule amphiphiles(SMA) at 1.5 and 15% levels were compared with or without heating to 65$^{\circ}C$ and cooling pretreatment in modified reduced-calorie cake systems. The SMA used were monoglycerides(MG), sorbitan monosterate(SMS), VanallR polysorbate 60(PS60), surose ester(SE) F10, F70, and F160, Low batter specific gravities with high cake voumes were noted with the high levels of treated SMS, MG, and SE F10 and F70 or cakes with treated low levels of SEF160, F70 and PS 60. Cake volumes with the treated low levels of SEF160, F70, and PS 60 were comparable to cake volumes when using an untreated high level of Vanall$\^$R/.

• Applied Chemistry for Engineering
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• v.30 no.4
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• pp.415-420
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• 2019

To investigate the effect of nonionic surfactant and emulsion stabilizer on O/W emulsions, various emulsion formulations with different types of nonionic surfactants and emulsion stabilizers were prepared and their rheological properties were compared. In this study, polysorbate 60 (Tween 60), PEG-60 hydrogenated castor oil (HCO 60), octyldodeceth-16 (OD 16), and ceteareth-6 olivate (Olivem 800) were used as hydrophilic nonionic surfactants, whereas cetyl alcohol, glyceryl monostearate, and stearic acid as emulsion stabilizers. Phase separation occurred only in the emulsion formulation with octyldodeceth-16 and all other emulsion formulations maintained a stable phase. The viscosity, hardness, and creaminess of emulsion formulation using a mixture of ceteareth-6 olivate and cetyl alcohol were the highest, and the emulsified droplet size was also the largest. These results are due to the formation of a network structure texture with the development of a large amount of liquid crystal in the O/W emulsion. In this formulation, the value of elastic modulus was large and the thixotropic behavior, in which the viscosity varies with the history of external force, was observed.

• Journal of the Korean Applied Science and Technology
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• v.24 no.2
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• pp.99-108
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• 2007

The cosmetic and toiletries are necessary health care & household for common life. However we need antiseptic which is effecting harmlessly to the human body. There are propolis, Lavender, Lemon, essential oil in the natural antiseptic materials. This work proceeded design Natural-antiseptic system with three materials as above-mentioned. Natural-antiseptic system was accomplished with propolis (2%), Lavender essential oil (0.3%), Lemon essential oil (0.3%) safety out of Polysorbate 20 (0.5%), Polysorbate 80 (0.5%), PEG (60) hydrogenated castor oil (0.45%), ethanol (5%). The antimicrobial test was experimented on E. coli and Bacillus stearothermophilus. In this antimicrobial test, we found that the effect of antisepsis against E. coli and Bacillus stearothermophilus with propolis 0.3%, Lavender essential oil 0.045% and Lemon essential oil 0.045% was improved. Therefore could expect Natural-antiseptic system product for moisturizing skin toner for face, nourishing essence and wet tissue for clean other things.

• Journal of Food Hygiene and Safety
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• v.21 no.1
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• pp.14-22
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• 2006

It is anticipated that difficulties are encountered in comparing the use levels of food additives between Korean and Codex systems because of the differences in the use level pattern and food classification method. This study was attempted to construct comparison tables between Korean and Codex standards for benzoic acid, food red No. 2, sulfur dioxide and polysorbate as well as for soybean paste, hot soybean paste and intstant noodle. Difficulties were found to be due to the food category system in use levels by additives and due to the mixed pattern of use level setting in Korea in use levels by food commodities. The comparison tables proposed in this study will be utilized momentously by regulatory authorities and food processing industry. This study showed the necessity to pay attention in comparing the use levels of food additives by country and food commodity.