http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
Hajireza Ahmadi,Mehran Javanbakht,Behrouz Akbari-adergani,Meisam Shabanian 한국공업화학회 2020 Journal of Industrial and Engineering Chemistry Vol.89 No.-
This work presents a new β-cyclodextrin based hydrophilic thinfilm molecularly imprinted membrane(TF-MIM), with selective di(2-ethylhexyl) phthalate (DEHP) removal ability. Firstly, glycidyl methacry-late-bonded β-cyclodextrin (GMA-β-CD) is synthesized as a new dual function special functionalmonomer. Then TF-MIMs are fabricated at a short time, by fast photo-grafting of the GMA-β-CD asfunctional monomer and methylene bisacrylamide as cross-linker onto the polyethersulfone membranein the presence of DEHP as template in MeOH/H2O solution. The porosity and pore size of TF-MIMs aredetermined and characterized utilizing ATR-FTIR, FE-SEM and contact angle (CA) measurement. Thedecreasing of CAs of the TF-MIMs from 64 in the neat PES to 31.9 verify that the surface hydrophilicityimproved significantly. The DEHP adsorption ability of TF-MIMs are evaluated. The imprinting factor ofDEHP obtained in afiltration test is 2.6 and selectivity factors of DEHP with respect to dibutyl phthalateand dioctyl terephthalate are 3.5 and 4 respectively showing that TF-MIMs have good selective removalability for DEHP.
Use of Glucose Oxidase Immobilized on Magnetic Chitosan Nanoparticles in Probiotic Drinking Yogurt
Maryam Ein Ali Afjeh,Rezvan Pourahmad,Behrouz Akbari-adergani,Mehrdad Azin 한국축산식품학회 2019 한국축산식품학회지 Vol.39 No.1
The aim of this study was to investigate the effect of glucose oxidase (GOX) immobilized on magnetic chitosan nanoparticles (MCNP) on the viability of probiotic bacteria and the physico-chemical properties of drinking yogurt. Different concentrations (0, 250, and 500 mg/kg) of free and immobilized GOX were used in probiotic drinking yogurt samples. The samples were stored at 4℃ for 21 d. During storage, reduction of the number of probiotic bacteria in the samples with enzyme was lower than the control sample (without enzyme). The sample containing 500 mg/kg immobilized enzyme had the highest number of Bifidobacterium lactis and Lactobacillus acidophilus. The samples containing immobilized enzyme had lower acidity than other samples. Moreover, moderate proteolytic activity and enough contents of flavor compounds were observed in these samples. It can be concluded that use of immobilized GOX is economically more feasible because of improving the viability of probiotic bacteria and the physico-chemical characteristics of drinking yogurt.