Improved Stability of Emulsions in Preparation of Uniform Small-Sized Konjac Glucomanna (KGM) Microspheres with Epoxy-Based Polymer Membrane by Premix Membrane Emulsification

Mi, Yace; Li, Juan; Zhou, Weiqing; Zhang, Rongyue; Ma, Guanghui; Su, Zhiguo

doi:10.3390/polym8030053

Cited by 10 publications

(7 citation statements)

References 26 publications

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“…Zhang et al [14] fabricated an ultralow oil-fouling amphiphilic copolymer incorporated poly(ether sulfone) (PES) heterogeneous membrane. First, the amphiphilic copolymer was prepared by semibatch reversible addition-where the fragmentation chain was transferred by poly (ethylene glycol) methyl ether methacrylate (PEGMA) and 3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl acrylate (TFOA). The resultant amphiphilic fluorinated gradient copolymers were then incorporated into the PES.…”

Section: Introductionmentioning

confidence: 99%

“…Many researchers have developed various types of microfilters. Membranes are the most important part of the microfiltration process [ 8 ]. For instance, it was found that superhydrophilic in situ-crosslinked zwitterionic polyelectrolyte/polyvinylidene fluoride-blend membranes exhibit high water permeation flux and good antifouling properties for separating oil-in-water emulsions with high separation efficiency [ 9 ].…”

Section: Introductionmentioning

confidence: 99%

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Preparation of Fouling-Resistant Nanofibrous Composite Membranes for Separation of Oily Wastewater

2017

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A facile and low-cost method has been developed for separation of oily wastewater. Polyvinylidene fluoride/polyacrylonitrile (PVDF/PAN) nanofibers laminated on a supporting layer were tested. In order to create highly permeable and fouling-resistant membranes, surface modifications of both fibers were conducted. The results of oily wastewater separation showed that, after low vacuum microwave plasma treatment with Argon (Ar) and chemical modification with sodium hydroxide (NaOH), the membranes had excellent hydrophilicity, due to the formation of active carboxylic groups. However, the membrane performance failed during the cleaning procedures. Titanium dioxide (TiO 2 ) was grafted onto the surface of membranes to give them highly permeable and fouling-resistance properties. The results of the self-cleaning experiment indicated that grafting of TiO 2 on the surface of the membranes after their pre-treatment with Ar plasma and NaOH increased the permeability and the anti-fouling properties. A new surface modification method using a combination of plasma and chemical treatment was introduced.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation of Fouling-Resistant Nanofibrous Composite Membranes for Separation of Oily Wastewater

2017

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“…Without the presence of amphiphilic compounds coalescence and flocculation may take place in emulsions, most of which during storage, resulting in phase separation which lead the system to loose its functionality and acceptance (Agama-Acevedo and Bello-Perez, 2017, Mi et al, 2016). To be a good emulsifying agent, a material must own an interfacial property.…”

Section: Osa Starch Forms a Stable Emulsion Systemmentioning

confidence: 99%

Production and Application of Octenyl Succinic-Modified Starch as Fat Replacer: A Review of Established and Recent Research

Anggriawan¹,

Maksum²,

Nurhayati³

2020

Preprint

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Along with the rapid development of the trend in the health sector, various studies have been conducted to find alternative healthier foods, one of which is reducing fat consumption. Currently, many researchers focus on one of modified starches that can be utilized as a fat replacer is starch modified with OSA (octenyl succinic anhydride). In the last decade, there have been quite a lot of publications related to OSA starch, further the number is still increasing. This review discusses the synthesis method of OSA starch and its optimization, functional characteristics, and its application to be a fat replacer in many kinds of products daily consumed. Various pre-treatment methods could be applied to create OSA starch which has higher degree of substitution values. The presence of conjugate bonds with the OSA group in starch polymers could produce very amphiphilic starch characteristic so as to have an emulsifying function. Emulsions shaped from OSA starch were utilized as fat replacers in foods with high level of fat content. Partial OSA starch substitution was successfully utilized as a fat replacer for several types of food products with similar sensory attributes or even slightly better than the native product. The resulting product could be defined as a healthier choice because it had relatively lower fat and calorie content. Even so, adjustments through further study are still needed so that the food produced is able to have a higher level of sensory acceptance relative to native food without fat substitution.

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“…Furthermore, difference in size of the microspheres could be related to the stability of the emulsion in the solution. According to Mi et al [18], the stability of the emulsion was related to the interface energy between the polymer and the emulsifier. Flocculation between the microspheres can be avoided by reducing the interface energy.…”

Section: Microstructural Analysismentioning

confidence: 99%

Fabrication of Cellulose Microspheres From Modified Cotton Linter and Oil Palm Trunk Fibre via Emulsion Method

Norizan

Mahadi

Nizam

et al. 2018

MJAS

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In this study, cellulose microspheres from modified cotton linter (CL) and oil palm trunk fibre (OPTF) were fabricated by using simple emulsion method. The cellulose was obtained from the CL and OPTF through the alkaline pre-treatment and acid hydrolysis processes. The emulsion method was performed using polyvinyl alcohol (PVA) as an emulsifying agent. The characterization of the cellulose from CL and OPTF were analysed using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD), and the morphological characterizations of cellulose microspheres were later observed under optical microscopy (OM) and field emission-scanning electron microscopy (FE-SEM). Based on the results, FTIR spectra displayed the lignin and hemicellulose had removed after treatments, while XRD revealed that the crystallinity index of OPTF and CL was increased after the treatments. The microspheres, formed with different ranges of size between 80 to 150 µm under OM and FE-SEM, showed the formation of pores on the surface of the microspheres. AbstrakKajian ini dijalankan bagi menghasilkan mikrosfera selulosa daripada linter kapas (LK) dan gentian batang kelapa sawit (GBKS) melalui kaedah emulsi. Selulosa didapati daripada LK dan gentian GBKS selepas proses pra-rawatan alkali dan hidrolisis asid. Manakala, kaedah emulsi dijalankan dengan menggunakan polivinil alkohol (PVA) sebagai agen pengemulsi. Pencirian selulosa daripada LK dan GBKS akan dianalisa menggunakan analisis transformasi inframerah Fourier (FTIR) dan pembelauan sinar-X (XRD) dan pencirian morfologi bagi mikrosfera selulosa dijalankan oleh mikroskopi optik (OM) dan mikroskop elektronimbasan pancaran medan (FE-SEM). Berdasarkan keputusan FTIR yang diperoleh, lignin dan hemiselulosa telah berjaya dibuang selepas rawatan, sementara itu, keputusan XRD menunjukkan terdapat peningkatan pada indeks kehabluran bagi GBKS dan LK selepas rawatan. Mikrosfera yang terbentuk juga dapat diperhatikan melalui OM dengan saiz berjulat 80 hingga 150 µm dan FE-SEM pula menunjukkan penghasilan liang pada permukaan kedua-dua mikrosfera.Kata kunci: pengemulsi, lignin, berliang, mikroskop elektron imbasan pancaran medan

show abstract

Improved Stability of Emulsions in Preparation of Uniform Small-Sized Konjac Glucomanna (KGM) Microspheres with Epoxy-Based Polymer Membrane by Premix Membrane Emulsification

Cited by 10 publications

References 26 publications

Preparation of Fouling-Resistant Nanofibrous Composite Membranes for Separation of Oily Wastewater

Preparation of Fouling-Resistant Nanofibrous Composite Membranes for Separation of Oily Wastewater

Production and Application of Octenyl Succinic-Modified Starch as Fat Replacer: A Review of Established and Recent Research

Fabrication of Cellulose Microspheres From Modified Cotton Linter and Oil Palm Trunk Fibre via Emulsion Method

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