检索结果-南通市图书馆

Study on bacteriostatic Properties of Piroctone Olamine in Commonly Used Surfactants Systems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

China Detergent & Cosmetics 2023年第1期8卷 45-51页

作者： Lei Faling Xiao Lei Infinitus(China)Co. Ltd.China

Piroctone olamine(OCT) was used as the main bacteriostatic component, the inhibition of OCT in different kinds and mass concentrations of surfactants were studied. Six surfactants commonly used in personal care products, i.e. sodium laureth sulfate(AES), cocamidopropyl betaine(CAB 35), sodium lauroyl sarcosinate(LS-30), sodium lauroyl glutamate(ULS-30S), alkyl glycoside(APG), cocamide methyl MEA(CMMEA),were used. The results showed that the bacteriostatic of OCT decreased with the increase of AES, which was suggested ≤ 5%. OCT has good bacteriostatic performance in the systems of amino acid surfactants and high dosage of amphoteric surfactants, 5% LS 30 and ≥ 10% CAB 35 was recommended. High dosage of nonionic surfactant could interfere the bacteriostatic performance of OCT, the recommended dosage was ≤ 2%.In addition, OCT has good bacteriostatic performance against Staphylococcus aureus, Escherichia coli and Candida albicans when pH was controlled less than 5.5.

关键词： piroctone olamine surfactant bacteriostatic hand sanitizer

Ultrasonic assisted natural deep eutectic solvents as a green and efficient approach for extraction of hydroxytyrosol from olive leaves

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Industrial Chemistry & Materials

Industrial Chemistry & Materials 2024年第2期2卷 309-320页

作者： Mingming Hu Bao Han Lin Xie Beibei Lu De Bai Nuo Shi Ya Liao Yan Wang Ling Liu Shaojun Wu Runrui Lan Xiaomei Lei Ci Shi Danhua Huang Yuanbin Li Lin Lin Jiaheng Zhang Sauvage Laboratory for Smart Materials Harbin Institute of Technology(Shenzhen)Shenzhen 518055P.R.China Research Centre of Printed Flexible Electronics School of Materials Science and EngineeringHarbin Institute of Technology(Shenzhen)Shenzhen 518055P.R.China Shenzhen Shinehigh Innovation Technology Co. LtdShenzhen 518055P.R.China Shanghai Corday Biotech.Co. LtdShanghai 200000P.R.China

In this study,an ultrasonic assisted natural deep eutectic solvent(DES)was used to extract hydroxytyrosol(HT)from olive *** optimal extraction conditions of the MaPa-4 concentration,extraction time and solid-liquid ratio were obtained by single factor *** formation mechanism of MaPa and its interaction with HT were analyzed by FTIR,^(1)H-NMR and density functional theory(DFT)***,MaPa-4 and water extracts obtained under the optimal extraction conditions were selected for a series of efficacy ***-4 extract demonstrated low cytotoxicity,good biocompatibility,and excellent antiinflammatory and bacteriostatic ***,MaPa-4,as an environmentally friendly and efficient solvent,was combined with ultrasound treatment to develop an efficient,green and feasible method to extract HT from olive leaves.

关键词： Hydroxytyrosol Deep eutectic solvent Single-factor experiment bacteriostatic Antiinflammatory Antioxidant

Phytochemicals, polyphenols content, in vitro antioxidant and antibacterial activities of Albizia coriaria Welw ex. Oliver flowers

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Traditional Medicine Research 2023年第2期8卷 1-6页

作者： Timothy Omara Ambrose K.Kiprop Viola J.Kosgei Department of Chemistry and Biochemistry School of Sciences and Aerospace StudiesMoi UniversityP.O.Box 3900-30100EldoretKenya Africa Center of Excellence II in Phytochemicals Textile and Renewable Energy(ACE II PTRE)Moi UniversityP.O.Box 3900-30100EldoretKenya Institute of Chemistry of Renewable Resources Department of ChemistryUniversity of Natural Resources and Life Sciences Vienna3430TullnAustria Testing Department Uganda National Bureau of StandardsBweyogerere Industrial and Business ParkP.O.Box 6329KampalaUganda

Albizia coriaria Welw ***(hereafter ***)is a revered medicinal tree whose organs are used by indigenous African societies for managing various ***,we assessed the secondary metabolites,total polyphenolics,free radical scavenging and antimicrobial activities of *** *** dry powdered sample was extracted serially with ethyl acetate,ethanol and distilled *** of classical phytochemical screening showed that saponins,phenols,alkaloids,flavonoids,tannins and terpenes were the dominant *** highest total polyphenolic content(10.37±0.02 mg QE/g DW and 72.09±0.09 mg GAE/g DW)and free radical scavenging potential(IC50=24.23±0.04 mg/mL)were for the ethyl acetate *** also had a higher bacteriostatic activity than the ethanolic extract against Pseudomonas aeruginosa,Salmonella typhi,Escherichia coli and Staphylococcus aureus with diameters of inhibition ranging from 7.00±0.00 to 22.00±1.73 *** aqueous extract showed no appreciable antibacterial effect on the tested *** is the first report which support the use of floral extracts of this species in the management of ailments in African traditional medicine.

关键词： bacteriostatic Albizia coriaria DPPH assay traditional medicine oxidative stress

In-vitro Synthesis and Activity Identification of Antimicrobial Peptide from Aspergillus granifolium

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Agricultural Biotechnology 2020年第2期9卷 35-38页

作者： Huihui CAO Lei WANG Yan WANG Yanhua YAN Xiaonan SONG Yu ZHOU Tangshan Food and Drug Comprehensive Testing Center Tangshan 063000China Hebei Agricultural Products Quality and Safety Testing Innovation Center Tangshan 063000China Tangshan Institute of Industrial Technology for Functional Agricultural Products Tangshan 063000China

[Objectives] This study was conducted to investigate the control effect of antimicrobial peptides to peanut aflatoxin contamination and achieve the purpose of biological control of peanut aflatoxin.[Methods]Bioinformatics methods were applied to screen antimicrobial peptides with strong antifungal activity in the antimicrobial peptide database and analyze their secondary structures and bacteriostatic characteristics,and the candidated peptide was then artificially synthesized,expressed and purified and detected for in-vitro activity.[Results] The antimicrobial peptide(AFP1) which was screened from Aspergillus granifolium exhibited strong antimicrobial activity against Aspergillus *** inhibition rate of crude AFP1 at 3 mg/ml reached 58% for gram-positive bacteria,52% for gram-negative bacteria,and 62% for ***.[Conclusions]This study provides a new approach for the prevention and control of various plant diseases including peanut disease,and a new idea for the biological prevention and control of plant diseases.

关键词： Peanut Antimicrobial peptide Aspergillus granifolium Anti-fungal activity bacteriostatic activity detection