Table of Content

22 April 2019, Volume 49 Issue 4 Previous Issue    Next Issue

Basic research

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Study of the properties of nonylcyclohexanol polyoxyethylene ether REN Cong-lin,MENG Xin-yu,HU Yi-tao,FANG Yun,QIAN Fei,XIA Yong-mei 2019, 49 (4):  209-213.  doi: 10.3969/j.issn.1001-1803.2019.04.001 Abstract ( 714 )   HTML ( 22 )   PDF (1062KB) ( 636 )   The substitution of nonylphenol polyoxyethylene ether-10（NPEO10）is a subject regarding environmental and regulatory requirements. Nonylcyclohexanol polyoxyethylene ether（NCEOn）possesses a structure similar to nonylphenol polyoxyethylene ether, with the same source of raw materials, and is most likely to be used as a substitute. The application performances of NCEOn and NPEO10 were systematically examined and compared, in order to provide a theoretical reference for seeking environmentally friendly alternatives to NPEO10 in terms of the structure-activity relationship of NCEOn. The experimental results show that NCEO7 is the one most like NPEO10 in emulsifying and wetting properties, and it is slightly better than NPEO10 in emulsifying olive oil, liquid paraffin and dimethicone. Therefore, NCEO7 can be a candidate for substituting NPEO10 as an emulsifier in industrial fields such as pesticides, pharmaceuticals and petroleum. Figures and Tables | References | Related Articles | Metrics

Lecture of science and technology

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Self-assembly of surfactants regulated by weak interactions（IV）Application in ionic conduction SUN Na,ZHENG Li-qiang,SUN Ji-chao 2019, 49 (4):  214-219.  doi: 10.3969/j.issn.1001-1803.2019.04.002 Abstract ( 367 )   HTML ( 9 )   PDF (1319KB) ( 574 )   Surfactants are one kind of typical amphiphilic molecules, which have been widely studied and applied in the fields of daily chemical industry, food industry, tertiary oil recovery, cell effect and enzyme effect due to their various properties such as wetting, emulsifying, foaming, dispersing and solubilizing. Driven by the non-covalent interactions, surfactant molecules can spontaneously form various ordered aggregate structures in solution. Owing to the structure effect and size effect of ordered aggregates, the application of surfactants in ion conduction has been extended. These ordered aggregates can provide a continuous conduction channel for ion transportation, which can greatly improve the ion-conducting efficiency. Figures and Tables | References | Related Articles | Metrics

Development and application

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Structure-property relationship in the series of iso-tridecanol polyoxyethylene ethers and their derivatives terminated with polyoxypropylene （3） block HUANG Zhong-rui,LV Jia-le,KANG Wen-qian,CAO Wen-li,WANG Li-min,CHE Fei 2019, 49 (4):  220-223.  doi: 10.3969/j.issn.1001-1803.2019.04.003 Abstract ( 520 )   HTML ( 11 )   PDF (1061KB) ( 634 )   The structure-property relationship of iso-tridecanol polyoxyethylene ether with different number of ethylene oxide （EO） units was studied, as well as their performance after blocking with 3 units of propylene oxide （3PO）. The surface tension, critical micelle concentration （cmc）, wetting properties, foam properties, emulsifying power and cloud point of iso-tridecanol polyoxyethylene ethers and 3PO-blocked iso-tridecanol polyoxyethylene polyoxypropylene ether were investigated. The results show that the minimum surface tension （γcmc）, the cmc, the foam stability and the foaming power, the wetting time and the cloud point of iso-tridecanol polyoxyethylene ether are increased with the increase of the EO number. It is also found that when PO is blocked, its surface tension is increased; the cmc, foam stability, foaming and emulsifying ability and cloud point are decreased; when the EO number is greater than 9, the wetting force is increased. In summary, the structure of polyethers affects their properties. Figures and Tables | References | Related Articles | Metrics

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Performance of activated peroxide system based on N-[4-（triethylammoniomethyl） benzoyl] caprolactam chloride in room-temperature cleaning of colored contaminants on textiles SHAO Dong-yan,CHAI Wen-long,DU Jin-mei,WANG Hong-bo,XU Chang-hai 2019, 49 (4):  224-228.  doi: 10.3969/j.issn.1001-1803.2019.04.004 Abstract ( 336 )   HTML ( 6 )   PDF (979KB) ( 332 )   N-[4-（triethylammoniomethyl） benzoyl] caprolactam chloride （TBCC） was used for activation of sodium perborate, sodium percarbonate and percarbamide for room-temperature cleaning of white fabrics contaminated with tea, coffee and wine. The experiment results show that the activated perborate and percarbonate systems exhibit outstanding room-temperature cleaning performance, but the activated percarbamide system exhibits poor room-temperature cleaning performance. It is found that the incorporation of sodium carbonate in the TBCC-activated percarbamide system can effectively improve its room-temperature cleaning performance. The TBCC-activated peroxide systems added with anionic and nonionic surfactants have no apparent change in their cleaning performance. Figures and Tables | References | Related Articles | Metrics

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Sodium-free synthetic process and characterization of SSZ-13molecular sieves MIN Ling-fei,LIANG Ya-ning,LI Ning,LI Xiao-feng,DOU Tao 2019, 49 (4):  229-233.  doi: 10.3969/j.issn.1001-1803.2019.04.005 Abstract ( 454 )   HTML ( 7 )   PDF (1358KB) ( 410 )   SSZ-13 molecular sieves with different silica-alumina ratios were synthesized by sodium-free one-step hydrothermal method in which ammonia water was used to replace NaOH as alkaline source, ammonium-type silica sol and aluminum sulfate were used as silicon and aluminum sources, and N,N,N-trimethyl-1-adamantyl ammonium hydroxide was used as the organic template agent. The products were characterized by X-ray diffraction（XRD）, scanning electron microscopy（SEM）, FT-IR, temperature-programmed desorption of ammonia（NH3-TPD）, elemental analysis, thermogravimetric analysis（TG-DTG） and isothermal N2 adsorption and desorption（BET）. The catalytic performance of the products was evaluated by Methanol-to-Olefins（MTO） reaction. The results show that the particle size of SSZ-13 molecular sieves with different silica-alumina ratios synthesized by ammonia is decreased with the increase of silica-alumina ratio; the products synthesized can be directly used after calcination for catalytic reaction; in the catalytic reaction of MTO, the catalyst with silica-alumina ratio of 75 exhibits a life span nearly 2.6 times longer than the one with silica-alumina ratio of 25. Figures and Tables | References | Related Articles | Metrics

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Consistency of sunscreen SPF values measured by in vivo and in vitro methods JIANG Zhen-juan 2019, 49 (4):  234-237.  doi: 10.3969/j.issn.1001-1803.2019.04.006 Abstract ( 667 )   HTML ( 22 )   PDF (769KB) ( 539 )   SPF 290S was used to test the SPF value of sunscreen products in vitro, and the consistency with the results of in vivo method was compared. The experimental conditions for the determination of SPF values by in vitro instrument were studied. PMMA plate or HD6 plate were used as the substrate, samples were coated at a dose of 2 mg/cm 2, and placed in room temperature for 30 min. Under this condition, a more stable and reproducible SPF value in vitro measurement results could be obtained. Studies on the products define that inorganic sunscreen agents（including zinc oxide and titanium dioxide） can affect the consistency of in vitro and in vivo methods, and sunscreen products without inorganic show good consistency. Products containing inorganic sunscreen agents show poor consistency. Figures and Tables | References | Related Articles | Metrics

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Microwave-assisted extraction technology of skin-whitening agent in white Poria cocos LI Zhi-ying,WANG Xue-han,GAO Rui-yuan 2019, 49 (4):  238-243.  doi: 10.3969/j.issn.1001-1803.2019.04.007 Abstract ( 392 )   HTML ( 13 )   PDF (1017KB) ( 349 )   The microwave-assisted extraction of skin-whitening agent from white Poria cocos was optimized by response surface methodology. Based on single factor experiment, the extraction solvent, liquid to solid ratio, extraction time, and microwave power were selected as independent variables and the relative inhibition rate of the extractive against tyrosinase was used as the response value. The Box-Behnken design and response surface method were used to optimize the extraction technology. The optimized conditions of extraction are as follows: distilled water is used as extraction solvent, with liquid to solid ratio of 10∶1（mL∶g）, extraction time of 7 min, microwave power of 520 W, and being extracted twice in one process. Under the optimized conditions, the yield of the extractive is 12.70%, and the relative inhibition rate is 31.10%, which is close to the theoretically predicted value（31.33%）. Figures and Tables | References | Related Articles | Metrics

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Study on therapeutic effect of traditional Chinese medicine hair restorer on hair loss in mice LUO An-ling,CHEN Xin-xin,DING Yun-wen,REYISHA Wu-fuer,ZHENG You-li,CONG Feng-song 2019, 49 (4):  244-247.  doi: 10.3969/j.issn.1001-1803.2019.04.008 Abstract ( 557 )   HTML ( 19 )   PDF (858KB) ( 722 )   The therapeutic effect of traditional Chinese medicine hair restorer on hair loss in mice was studied by applying the hair restorer to the hair removal area on the back mice. The effect of hair restorer on hair regeneration rate was evaluated by measuring the newborn hair length on mice. The effect of hair restorer on the morphology of hair follicles and the terminal/vellus hair ratio was evaluated by observing the skin HE staining section. The effect of hair restorer on collagen fiber arrangement was evaluated by observing the skin Masson staining section. The effect of hair restorer on the expression of lactate dehydrogenase（Ldha）was detected by Western Blot. The results show that compared with the control group, the hair regeneration rate is accelerated, the number of hair follicles increases, the terminal/vellus hair ratio increases, collagen fibers arrange more closely and orderly, and the expression of Ldha is up-regulated in the treatment group, which indicate that the traditional Chinese medicine hair restorer has an efficacy of promoting hair growth. Figures and Tables | References | Related Articles | Metrics

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Study on preparation process and safety evaluation of handmade soap containing Corni Fructus polysaccharide LIU Fang,ZHANG Qian,YANG Bin,HE Hua-kang,YANG Lei,GUO Chun-hua 2019, 49 (4):  248-252.  doi: 10.3969/j.issn.1001-1803.2019.04.009 Abstract ( 374 )   HTML ( 14 )   PDF (1316KB) ( 548 )   The handmade soap was prepared with the cold process using olive oil, coconut oil, palm oil and beeswax as soap base and polysaccharide of Corni Fructus as the functional component. The properties, antibacterial activity and safety of the soap were evaluated. The optimized proportions of coconut oil, palm oil, olive oil and beeswax were 25%, 25%, 45% and 5%, together with that of Corni Fructus polysaccharide being 1%. The indexes such as the total free base, free caustic alkali, water content and volatile oil were all consistent with the Chinese standards, and it was not irritant to the skin or eyes of rabbits. The results show that such handmade soap containing Corni Fructus polysaccharide is safe and nonirritating, which provides a scientific basis for utilization of the Corni Fructus. Figures and Tables | References | Related Articles | Metrics

Reviews

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Recommendation of computer-aided drug design for the screening of cosmetic plant source efficacy materials ZHAO Si-qi,MENG Hong,YI Fan 2019, 49 (4):  253-258.  doi: 10.3969/j.issn.1001-1803.2019.04.010 Abstract ( 409 )   HTML ( 12 )   PDF (844KB) ( 580 )   The application of computer-aided drug design technology in the screening and prediction of functional substances in cosmetic plant materials was reviewed, its application in predicting the binding relationship of target proteins in skin-related biological pathways of medicinal plants, and the overall evaluation of the role of medicinal plants in skin physiology were discussed. Suggestions for constructing a complete, efficient and convenient raw material research and development model are proposed and prospected. Figures and Tables | References | Related Articles | Metrics

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The efficacy of silymarin in dermatology and its application in cosmetics YANG Yan-yin,YANG Zhi-guo,HU Shi-guo,LI Yan,XUE Qiang,SUN Hua-fu 2019, 49 (4):  259-263.  doi: 10.3969/j.issn.1001-1803.2019.04.011 Abstract ( 930 )   HTML ( 27 )   PDF (803KB) ( 2046 )   The efficacy and mechanism of silymarin in dermatology were reviewed, including anti-light damage, antioxidant, delaying skin aging, whitening, hair protection, treatment of chloasma, rosacea and scar repair. The applications of silymarin in cosmetics were introduced, including sunscreen cream, essence cream, eye cream, lotion, mask, etc. A broader application of silymarin in cosmetics industry was also prospected. References | Related Articles | Metrics

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Research progress on whitening active ingredients from marine sources OUYANG Pei-pei,LIAO Xue-hua,WU Ke-feng,MA Xiao-li 2019, 49 (4):  264-268.  doi: 10.3969/j.issn.1001-1803.2019.04.012 Abstract ( 752 )   HTML ( 31 )   PDF (801KB) ( 746 )   The synthesis and signal transduction pathway of melanin were summarized. The research results of seaweed active composition such as polysaccharides, polyphenols, carotenoids and terpenoids, marine animal extracts such as collagen, peptides and glycoproteins, and active substances of microalgae, marine fungi and bacteria in whitening were reviewed. It points out the market prospect of developing new whitening cosmetics based on these active ingredients. Figures and Tables | References | Related Articles | Metrics

Analytical methods and testing

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Determination of ethylenediamine tetraacetic acid and nitrilotriacetic acid in detergent products using metal-complexing derivatization and HPLC XIA Ze-min,WANG Ji-cai,TAN Jian-hua,LI Xin-yu,PANG Xue-bin,YANG Dan-mei 2019, 49 (4):  269-274.  doi: 10.3969/j.issn.1001-1803.2019.04.013 Abstract ( 438 )   HTML ( 9 )   PDF (957KB) ( 476 )   A method for the determination of ethylenediamine tetraacetic acid（EDTA）and nitrilotriacetic acid（NTA）in detergent products was established using metal-complexing derivatization and high performance liquid chromatography. The samples were extracted with water, derivatized with Cu（NO3） 2, purified by MAX anion-exchange solid-phase extraction, separated on an X-Bridge C18（4.6 mm×250 mm, 5 μm） column, and detected by HPLC with a diode array detector. The retention time and UV absorption spectra were used for qualitation and the external standard method was used for quantitation. The results show that, under optimized conditions, the calibration curves show good linearity in respective ranges for NTA and EDTA with correlation coefficients（R 2）no less than 0.999 7. The LODs and LOQs are in the ranges of 10-20 mg/kg and 25-50 mg/kg, respectively. The recoveries of EDTA and NTA at the spiked levels of 0.5-100.0 mg/L are in the range of 89.8%-107.8% with the relative standard deviations（RSDs, n=6）are 1.11%-5.71%. With good precision and high accuracy, this method is suitable for the determination of EDTA and NTA in detergent products. Figures and Tables | References | Related Articles | Metrics

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Simultaneous determination of phenol, hydroquinone, arbutin, andkojic acid in whitening cosmetics by micellar electrokinetic capillary chromatography LI Wu-yun-ta-na,ZHAO Jun-cai,WANG Ping,DING Xiao-jing 2019, 49 (4):  275-278.  doi: 10.3969/j.issn.1001-1803.2019.04.014 Abstract ( 354 )   HTML ( 8 )   PDF (892KB) ( 471 )   A new micellar electrokinetic capillary chromatographic method for the simultaneous determination of phenol, hydroquinone, arbutin and kojic acid in whitening cosmetics was developed. The selection and optimization of separation buffer were investigated in detail. The four substances were separated and determined within 5 minutes using uncoated fused silica capillary with an internal diameter of 50 μm and a total length of 40.2 cm （effective length of 30 cm） as separation column and 110 mmol/L H3BO3, 5 mmol/L Na2HPO4 （pH=7.5） and 120 mmol/L sodium dodecyl sulfate （SDS） as separation buffer solution. The detection wavelength was 214 nm. The results show that the corrected peak area （Ac） and the concentrations of the four components have good linear relationships within the ranges of 12.5-2 000 μg/g with the linear correlation coefficients （r） all above 0.999. The recoveries at three spiked levels are in the ranges of 96%-112%, and the relative standard deviations are in the ranges of 0.08%-2.50%. The limits of detection are in the ranges of 2.5-12.5 μg/g. The newly established method is suitable for actual sample analysis with high accuracy, good repeatability and simplicity. Figures and Tables | References | Related Articles | Metrics