Thickening properties and emulsification mechanisms of new derivatives of polysaccharides in aqueous solution

Akiyama, Takahiko; Kashimoto, Akio; Fukuda, Keiichi; Hotta, Hajime; Suzuki, Toshiyuki; Kitsuki, Tomohito

doi:10.1016/j.jcis.2004.08.178

Cited by 67 publications

(48 citation statements)

References 12 publications

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“…However, those with 3 and 4 folds of HMHEC yielded better entrapment. Following coalescene, Ostwald ripening was observed in liposome 1, whereas a thickening effect of HMHEC at higher content conserved liposome stability 40) due to three-dimensional network of the elastic film covering the vesicle wall. 38) Liposome 3 was found to be the best vesicle for cosmetic products, followed by liposomes 4, 2, and 1.…”

Section: Preparation and Stability Of The Salak Plum Peel Etoac Fractmentioning

confidence: 99%

Salak Plum Peel Extract as a Safe and Efficient Antioxidant Appraisal for Cosmetics

Kanlayavattanakul¹,

Lourith²,

Ospondpant³

et al. 2013

Bioscience, Biotechnology, and Biochemistry

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The antioxidant activities of Salak plum (Salacca edulis) peel extracts were assessed by 1, 1-diphenyl-2-picrylhydrazyl (DPPH), 2,2 0 -azino-bis(3-ethylbenzothaiazoline)-6-sulfonic acid (ABTS), and ferric reducing ability of plasma (FRAP) assays. The ethyl acetate (EtOAc) fraction was the most potent (DPPH IC50 ¼ 2:932 AE 0:030 g/mL, ABTS IC50 ¼ 7:933 AE 0:049 g/mL, FRAP EC ¼ 7;844:44 AE 40:734). Chlorogenic acid was detected as the marker (1:400 AE 0:102 g/kg). The EtOAc fraction was non-cytotoxic in vero and normal human fibroblast (NHF) cells. It exhibited cellular oxidative prevention and damage treatment at 5-40 g/mL in NHF cells. Salak plum peel loaded liposome consisting of lecithin and hydrophobically modified hydroxyethylcellulose (HMHEC) was developed and found stable with adequate entrapment efficacy. Thus Salak plum peel was highlighted as a potential ecological antioxidant for health promotion aspects, and for cosmetics.

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Section: Preparation and Stability Of The Salak Plum Peel Etoac Fractmentioning

confidence: 99%

Salak Plum Peel Extract as a Safe and Efficient Antioxidant Appraisal for Cosmetics

Kanlayavattanakul¹,

Lourith²,

Ospondpant³

et al. 2013

Bioscience, Biotechnology, and Biochemistry

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“…However, the addition even of small amounts of oppositely charged surfactants to the polymer leads to a sharp decrease in the interfacial tension at the water/oil interface [16,17,19]. The properties and structure of these complexes depend on the molecular characteristics of both the polymer and surfactant [43][44][45]. The addition of an oppositely charged polymer forms also an extended steric barrier, which prevents coalescence and, hence, enhances stability.…”

Section: Emulsion Stabilization By Polymers and Surfactants: Interfacmentioning

confidence: 99%

The Use of Polymer and Surfactants for the Microencapsulation and Emulsion Stabilization

Sharipova¹,

Aidarova²,

Mutaliyeva³

et al. 2017

Colloids and Interfaces

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Polymer/surfactant mixtures have a wide range of industrial and technological applications, one of them being the use in microencapsulation and emulsion stabilization processes. These mixtures are able to form adsorption layers at the surface of oil droplets and so affect the emulsion stability, which depends on the polyelectrolyte/surfactant nature, concentrations ratio, method of the emulsification, etc. Polyelectrolytes alone show low surface activity in contrast to surfactants, which adsorb at the water/oil interface, making the droplets charged, but they are insufficient to stabilize emulsions. When an oppositely-charged polymer is added to the surfactant solution, a steric barrier is formed, which prevents coalescence and enhances the stability. The present review is devoted to the recent studies of the use of polymer/surfactant mixtures for the encapsulation of active ingredients and stabilization of single and double emulsions. Active ingredients are added to the oil phase prior to emulsification so that any subsequent dissolution of the core, like in other encapsulation protocols, can be omitted. By measuring the interfacial tension and dilational rheology it is possible to find optimum conditions for the emulsion formation and hence for encapsulation. Therefore, such systems have become a prominent approach for the encapsulation of active ingredients.

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“…Amphiphilic-associating polyelectrolytes offer the opportunity to combine both electrosteric and viscosifying stabilization mechanisms, since they form a strong gel network structure and a protective layer [29]. For example, oil droplets were dispersed and kept stable in the strong gel structure of hydrophobically-hydrophilically modified hydroxyethylcellulose (HHM-HEC) [30]. The stability of the emulsion using HHM-HEC is based on both protective colloidal effects and associative thickening caused by alkyl chains in HHM-HEC.…”

Section: Emulsions With a Gelled Continuous Phasementioning

confidence: 99%

Emulsions with structured continuous phases

Rodríguez‐Abreu

Lazzari

2008

Current Opinion in Colloid & Interface Science

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Thickening properties and emulsification mechanisms of new derivatives of polysaccharides in aqueous solution

Cited by 67 publications

References 12 publications

Salak Plum Peel Extract as a Safe and Efficient Antioxidant Appraisal for Cosmetics

Salak Plum Peel Extract as a Safe and Efficient Antioxidant Appraisal for Cosmetics

The Use of Polymer and Surfactants for the Microencapsulation and Emulsion Stabilization

Emulsions with structured continuous phases

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