Development of an electrochemical sensor modified with gold nanoparticles for detecting fumonisin B1 in packaged foods.

RSC Adv

State Key Laboratory of Animal Nutrition and Feeding, Institute of Animal Science, Chinese Academy of Agricultural Sciences Beijing 100193 China.

Published: September 2024

Fumonisin B1 (FB1) is naturally present in the environment and can easily contaminate packaged foods during processing, storage and transportation, thus posing a threat to human health. We have developed an enzyme-free FB1 detector for the detection of packaged foods, which provides rapid and sensitive detection of FB1 in food. Gold nanoparticles (AuNPs; 5-10 nm) were uniformly dispersed on screen-printed electrodes, which acted as an excellent catalytic oxidizer. The surface structure of the modified electrode was characterized using scanning electron microscope and X-ray photoelectron spectroscopy. Differential pulse voltammetry demonstrated a good linear electrochemical response towards FB1 at concentrations ranging from 1 ng L to 1 mg L with a detection limit of 0.08 ng L. We employed the AuNPs-SPE sensor to detect FB1-spiked packaged meat products achieving recovery rates ranging from 89.7% to 113.3%.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC11403390PMC
http://dx.doi.org/10.1039/d4ra04753bDOI Listing

Publication Analysis

Top Keywords

packaged foods
12
gold nanoparticles
8
development electrochemical
4
electrochemical sensor
4
sensor modified
4
modified gold
4
nanoparticles detecting
4
detecting fumonisin
4
packaged
4
fumonisin packaged
4

Similar Publications

Today, active packaging has become essential to increase food safety and decrease food spoilage. In this study, the aim was to delay spoilage and increase the shelf life of rainbow fish fillets with a new hybrid nanocomposite active packaging. Packaging was fabricated with Ethylene vinyl acetate and active compounds such as rosemary extract, zinc oxide nanoparticles, and modified iron (Fe-MMT).

View Article and Find Full Text PDF

Fabricating an antioxidant and bacteriostatic soy protein isolate film double-crosslinked via dialdehyde cellulose nanofibers and Tara tannins for beef tallow and cooked pork preservation.

Int J Biol Macromol

January 2025

Key Laboratory of Bio-based Materials Science and Technology of Ministry of Education, Northeast Forestry University, No. 26 Hexing Road, Xiangfang District, Harbin 150040, PR China. Electronic address:

Although Tara tannins (TT) have given soy protein isolate (SPI) film antioxidant properties, the mechanical and barrier properties were not significantly improved. In this work, dialdehyde cellulose nanofibers (DACNF) were obtained through oxidation using sodium periodate and incorporated into SPI film with TT to obtain antioxidant and bacteriostatic properties. With increased DACNF content, the anti-swelling, mechanical and barrier properties of SPI film were enhanced due to a double-crosslinked structure based on the covalent and hydrogen bonds formed between DACNF, TT and SPI.

View Article and Find Full Text PDF

Purple passion fruit peel (PPFP) is a common biomass waste. Meanwhile, hydrothermal carbonization (HTC) is a common technology used for thermal conversion of biomass waste. Herein, the aqueous phase (AP) of PPFP was determined using HTC, and its properties were studied.

View Article and Find Full Text PDF

Preparation of photodynamic-controlled release packaging for pork preservation and its visualization.

Food Chem

January 2025

Agricultural Product Processing and Storage Lab, School of Food and Biological Engineering, Jiangsu University, Zhenjiang, Jiangsu 212013, China. Electronic address:

The current study aimed to synthesize a ZIF-8 metal-organic framework loaded with the Rose Bengal (ZIF-8@RB) as the photodynamic sterilization ingredient to address the uncontrolled release of active ingredients in packaging films. The photodynamic controlled release packaging film was then prepared using a PVDF polymer matrix via uniaxial electrospinning. The microstructure, particle size, excitation wavelength, and singlet oxygen yield of ZIF-8@RB were examined.

View Article and Find Full Text PDF

The main objective of this study is to prepare sodium alginate (SA)-based biofilms incorporated with watercress oil (WCO) as an antimicrobial material for sustainable food packaging. The physicochemical, antioxidant, and antibacterial properties of the prepared bio-based films were investigated. The antioxidant activity showed a remarkable increase, with DPPH inhibition increasing from 13.

View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!