Magnetic separation technology: Functional group efficiency in the removal of haze-forming proteins from wines

被引：35

作者：

Mierczynska-Vasilev, Agnieszka ^{[1
,2
]}

Mierczynski, Pawel ^{[3
]}

Maniukiewicz, Waldemar ^{[3
]}

Visalakshan, Rahul M. ^{[2
]}

Vasilev, Krasimir ^{[4
]}

Smith, Paul A. ^{[1
,5
]}

机构：

[1] Australian Wine Res Inst, Waite Precinct, Hartley Grove Cnr Paratoo Rd,POB 197, Glen Osmond, SA 5064, Australia

[2] Univ South Australia, Future Ind Inst, Mawson Lakes Campus, Mawson Lakes, SA 5095, Australia

[3] Lodz Univ Technol, Inst Gen & Ecol Chem, Zeromskiego 116, PL-90924 Lodz, Poland

[4] Univ South Australia, Sch Engn, Mawson Lakes Campus, Mawson Lakes, SA 5095, Australia

[5] Wine Australia, POB 660, Kent Town, SA 5071, Australia

来源：

FOOD CHEMISTRY | 2019年 / 275卷

基金：

澳大利亚研究理事会;

关键词：

Acrylic acid; Allylamine; Haze; Magnetic nanoparticles; 2-Methyl-2-oxazoline; Plasma polymerization; Protein removal; White wine; POLYELECTROLYTE BRUSHES; GLOBULAR-PROTEINS; THIN-FILMS; ADSORPTION; RELEASE; HEAT;

D O I：

10.1016/j.foodchem.2018.09.046

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Magnetic nanoparticles were modified by plasma polymerization, using allylamine, acrylic acid and 2-methyl-2-oxazoline as precursor to produce amine, carboxyl and oxazoline functional group rich surfaces. The nanoparticles were characterized by Fourier-transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS) and zeta potential measurements. The capacity of nanoparticles carrying different surface properties to remove haze-forming proteins from Semillon and Sauvignon Blanc unfined wines was examined by high-performance liquid chromatography (HPLC). The protein capture efficiency of the modified surfaces decreases in the following order: COOH > POx > NH2. This study will help optimising the design of this new technology for the selective removal of haze proteins from white wines.

引用

页码：154 / 160

页数：7

共 41 条

[1]

Achaerandio I, 2001, AM J ENOL VITICULT, V52, P122

[2] Nanotopography mediated osteogenic differentiation of human dental pulp derived stem cells [J].