Open Access Published by De Gruyter Open Access

Volume 5 Issue 1

September 2018

Issue of Molecular Imprinting

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Journal Overview

Open Access September 19, 2018

Application of a Custom-Synthesized Molecularly Imprinted Polymer for the Selective Isolation of Total Glucose and Fructose from 100% Fruit Juice Samples Prior to Instrumental Analysis

Hawa W. Mukami, Bareki S. Batlokwa

Page range: 16-24

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Abstract

This article presents a novel sample preparation strategy that employed a custom-synthesized glucose - fructose (G-F) specific molecularly imprinted polymer (MIP) powder as an adsorbent for the simultaneous and selective extraction, isolation and pre-concentration of total glucose and fructose from the complex and `dirty` sample matrix of ‘100%’ fruit juices purchased from retail shops in Palapye, Botswana. The prepared G-F MIP powder demonstrated high selectivity, effective extraction and isolation for glucose and fructose from real samples of `100%` fruit juice samples as evidenced by the calculated high extraction efficiencies (EEs) of over 90%, with low percentage relative standard deviations (%RSD) of below 7% for n=6, for both glucose and fructose when compared to the low EEs of below 25% by the non-imprinted polymer (NIP), regarded as the control. Furthermore, the G-F MIP showed lower selectivity towards the analogous molecules; maltose and lactose as supported by the low EEs of below 31%. With the high affinity for glucose and fructose, the selective sample preparation strategy proposed herein presented itself as a potential procedure to be employed to improve the accurate analysis of adulterated artificial sugar sweeteners that are usually illegally added to the so-called `100%` fruit juices by producers to improve their taste.

About this journal

The journal is closed for submissions.

Molecular Imprinting was an international journal especially focused on all aspects of molecular imprinting.

The journal was published in Open Access model and is archived in Portico.

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