Accurate and sensitive determination of lead in black tea samples using cobalt magnetic particles based dispersive solid-phase microextraction prior to slotted quartz tube-flame atomic absorption spectrometry.

Abstract:

:Newly developed combination of magnetic cobalt particles based dispersive solid-phase microextraction (Co-MP-DSPME) and slotted quartz tube attached flame atomic absorption spectrometry (SQT-FAAS) was utilized to determine lead at trace levels in tea samples. Co-MPs' adsorbent properties were tested and validated for their selectiveness to lead. Only with a few and short extraction steps (i.e. adding MPs, mixing, decanting and eluting) analyte was extracted from sample solution rapidly and efficiently. Limit of detection (LOD) and limit of quantification (LOQ) for the developed method (Co-MP-DSPME-SQT-FAAS) were found to be 7.77 µg/L and 25.9 µg/L, respectively. Matrix matching strategy was performed and outcomes indicated that the developed method is applicable with the high percent recovery values of 110.1 ± 4.5 and %102.9 ± 4.2 for 100 and 300 µg/kg lead standard spiked black tea samples, respectively. The method was also applied to standard reference material to check the accuracy of the method.

journal_name

Food Chem

journal_title

Food chemistry

authors

Akkaya E,Erulas FA,Büyükpinar Ç,Bakirdere S

doi

10.1016/j.foodchem.2019.06.014

subject

Has Abstract

pub_date

2019-11-01 00:00:00

pages

124947

eissn

0308-8146

issn

1873-7072

pii

S0308-8146(19)31049-0

journal_volume

297

pub_type

杂志文章
  • Physicochemical characterisation of β-carotene emulsion stabilised by covalent complexes of α-lactalbumin with (-)-epigallocatechin gallate or chlorogenic acid.

    abstract::In this study the impact of covalent complexes of α-lactalbumin (α-La) with (-)-epigallocatechin gallate (EGCG) or chlorogenic acid (CA) was investigated on the physicochemical properties of β-carotene oil-in-water emulsions. EGCG, or CA, was covalently linked to α-La at pH 8.0, as evidenced by increased total phenoli...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2014.10.070

    authors: Wang X,Liu F,Liu L,Wei Z,Yuan F,Gao Y

    更新日期:2015-04-15 00:00:00

  • Pomegranate peel and peel extracts: chemistry and food features.

    abstract::The present review focuses on the nutritional, functional and anti-infective properties of pomegranate (Punica granatum L.) peel (PoP) and peel extract (PoPx) and on their applications as food additives, functional food ingredients or biologically active components in nutraceutical preparations. Due to their well-know...

    journal_title:Food chemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.foodchem.2014.11.035

    authors: Akhtar S,Ismail T,Fraternale D,Sestili P

    更新日期:2015-05-01 00:00:00

  • Ozone oxidation of cassava starch in aqueous solution at different pH.

    abstract::Ozone is a more powerful oxidant than common oxidising agents, such as sodium hypochlorite and hydrogen peroxide. It is considered as a safer starch modification method for both consumers and the environment. However, few studies have investigated the changes in starch properties associated with ozone treatment, parti...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2014.01.058

    authors: Klein B,Vanier NL,Moomand K,Pinto VZ,Colussi R,da Rosa Zavareze E,Dias AR

    更新日期:2014-07-15 00:00:00

  • Targeted separation of antibacterial peptide from protein hydrolysate of anchovy cooking wastewater by equilibrium dialysis.

    abstract::Anchovy (Engraulis japonicus) cooking wastewater (ACWW) is a by-product resulted from the production of boiled-dried anchovies in the seafood processing industry. In this study, the protein hydrolysate of ACWW (ACWWPH) was found to have antimicrobial activity after enzymatic hydrolysis with Protamex. For the targeted ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2014.07.027

    authors: Tang W,Zhang H,Wang L,Qian H,Qi X

    更新日期:2015-02-01 00:00:00

  • Preparation and characterization of multilayer films composed of chitosan, sodium alginate and carboxymethyl chitosan-ZnO nanoparticles.

    abstract::To deal with serious environmental pollution resulting from plastic packaging materials, biodegradable films using chitosan (CS) are gaining considerable increase gradually. However, chitosan films lack important properties to meet the preserved demands. This study aimed to develop new bio-based films incorporated wit...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2019.01.022

    authors: Wang H,Gong X,Miao Y,Guo X,Liu C,Fan YY,Zhang J,Niu B,Li W

    更新日期:2019-06-15 00:00:00

  • Evaluation of non-thermal effects of electricity on anthocyanin degradation during ohmic heating of jaboticaba (Myrciaria cauliflora) juice.

    abstract::This study investigated the non-thermal effects of electricity on anthocyanin degradation during ohmic heating of jaboticaba juice. For this, temperature profiles during conventional and ohmic heating processes were matched, and the degradation kinetics of anthocyanins were compared at temperatures ranging from 70 to ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2014.09.006

    authors: Mercali GD,Gurak PD,Schmitz F,Marczak LD

    更新日期:2015-03-15 00:00:00

  • Enhanced antimicrobial activity of essential oil components immobilized on silica particles.

    abstract::The antimicrobial activity of essential oils components (EOCs) is well-known. However, their high volatility and powerful aroma limit their application in the formulation of a wide range of food products. In this context, the antimicrobial activity of carvacrol, eugenol, thymol and vanillin grafted onto the surface of...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2017.04.118

    authors: Ruiz-Rico M,Pérez-Esteve É,Bernardos A,Sancenón F,Martínez-Máñez R,Marcos MD,Barat JM

    更新日期:2017-10-15 00:00:00

  • Antiglycation activity of lipophilized epigallocatechin gallate (EGCG) derivatives.

    abstract::Lipophilized EGCG derivatives were synthesized by esterification of EGCG with aliphatic fatty acids and demonstrated to possess many advantages, such as higher lipophilicity and apparent health benefits over the parent EGCG. This study used a total of seven lipophilized EGCG derivatives with fatty acids of different c...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2015.06.033

    authors: Wang M,Zhang X,Zhong YJ,Perera N,Shahidi F

    更新日期:2016-01-01 00:00:00

  • Fast and simple method of simultaneous preservative determination in different processed foods by QuEChERS and HPLC-UV: Method development, survey and estimate of daily intake.

    abstract::A fast and simple method, which employs QuEChERS and HPLC-UV, was developed to determine preservatives in processed foods from different classes. The method showed correlation coefficients above 0.99, LOQs between 0.13 and 0.33 mg kg-1 and recoveries between 91 and 107%, with RSD ≤ 5.3%. Levels of preservatives were u...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2019.04.094

    authors: de Oliveira Arias JL,Rocha CB,Santos ALQS,Marube LC,Kupski L,Caldas SS,Primel EG

    更新日期:2019-09-30 00:00:00

  • Dynamic changes of proton populations in potato flours during fermentation and their relationship with digestibility and functional properties.

    abstract::The effects of fermentation on the dynamic state of proton populations, digestibility, and functional properties of potato flours prepared from Atlantic and Kexin No. 1 were investigated. Depending on the changes in moisture content and digestibility of potato flours during fermentation, three proton populations were ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2020.126161

    authors: Gong S,Li W,Yu Y,Gu X,Zhang W,Wang Z

    更新日期:2020-05-30 00:00:00

  • Highly-sensitive and rapid determination of sunset yellow using functionalized montmorillonite-modified electrode.

    abstract::Montmorillonite calcium (MMT-Ca) was functionalized with cetyltrimethylammonium bromide (CTAB) via cationic exchange effects. Compared with MMT-Ca, the resulting CTAB functionalized MMT-Ca (CTAB/MMT-Ca) greatly increased the oxidation peak current of sunset yellow, indicative of strong signal enhancement effects. The ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2014.10.075

    authors: Songyang Y,Yang X,Xie S,Hao H,Song J

    更新日期:2015-04-15 00:00:00

  • Proteolytic activity of selected commercial Lactobacillus helveticus strains on soy protein isolates.

    abstract::Soy protein isolates were fermented by three commercial Lactobacillus helveticus strains for a maximum of seven days to investigate the resulting proteolysis. The proteolytic activity of the most active strain (LH88) was further analyzed (LC-MS/MS and GC-MS) and it was shown that the β-conglycinin α subunit 1, β-congl...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2020.128152

    authors: Shirotani N,Bygvraa Hougaard A,Lametsch R,Agerlin Petersen M,Rattray FP,Ipsen R

    更新日期:2021-03-15 00:00:00

  • Resistant starch type V formation in brown lentil (Lens culinaris Medikus) starch with different lipids/fatty acids.

    abstract::This study aimed to characterize the brown lentil (Lens culinaris Medikus) starch and investigate the formation of amylose-lipid complexes (Resistant Starch Type V) by the addition of different lipids/fatty acids (10%, w/w) to both raw and cooked starch samples. Resistant starch content (measured by the official metho...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2017.07.157

    authors: Okumus BN,Tacer-Caba Z,Kahraman K,Nilufer-Erdil D

    更新日期:2018-02-01 00:00:00

  • Electron spin resonance spectral analysis of irradiated royal jelly.

    abstract::The analysis of unpaired electron components in royal jelly was carried out using electron spin resonance (ESR) with the aim to develop a detection method for irradiated royal jelly. The ESR spectrum of royal jelly had natural signals derived from transition metals, including Fe(3+) and Cu(2+), and a signal line near ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2013.07.139

    authors: Yamaoki R,Kimura S,Ohta M

    更新日期:2014-01-15 00:00:00

  • Development of a sandwich vertical flow immunogold assay for rapid detection of oxytetracycline residue in fish tissues.

    abstract::A rapid multiplex silver enhanced 'sandwich vertical flow immunogold assay (SVIA)' based on disposable porous filter-membrane was developed for on-site detection of oxytetracycline (OTC) residues in fish tissues. Artificial antigens were synthesized to raise selective anti-OTC rabbit antiserum and highly specific mono...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2018.07.124

    authors: Moumita M,Shankar KM,Abhiman PB,Shamasundar BA

    更新日期:2019-01-01 00:00:00

  • Integrated and comparative proteomics of high-oil and high-protein soybean seeds.

    abstract::We analysed the global protein expression in seeds of a high-oil soybean cultivar (Jiyu 73, JY73) by proteomics. More than 700 protein spots were detected and 363 protein spots were successfully identified. Comparison of the protein profile of JY73 with that of a high-protein cultivar (Zhonghuang 13, ZH13) revealed 40...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2014.09.035

    authors: Xu XP,Liu H,Tian L,Dong XB,Shen SH,Qu le Q

    更新日期:2015-04-01 00:00:00

  • Screening of lactic acid bacteria for their capacity to bind cypermethrin in vitro and the binding characteristics and its application.

    abstract::In this study, the cypermethrin binding characteristics of lactic acid bacteria were investigated for the first time. Two strains, Lactobacillus plantarum RS60 and Pediococcus acidilactici D15, possessed the highest cypermethrin removal capacity and good tolerance to simulated digestive juices. They were employed for ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2021.129000

    authors: Zhang M,Ming Y,Guo H,Zhu Y,Yang Y,Chen S,He L,Ao X,Liu A,Zhou K,Zou L,Liu S

    更新日期:2021-01-08 00:00:00

  • A review of ethyl carbamate and polycyclic aromatic hydrocarbon contamination risk in cachaça and other Brazilian sugarcane spirits.

    abstract::Sixteen polycyclic aromatic hydrocarbons (PAHs) have been identified in Brazilian sugarcane spirits. Contamination sources are: sugarcane burn before harvest and petroleum derivatives. PAHs concentration in spirits produced from burned cane was about 2-3 times higher than those from unburned cane. Benzo(a)pyrene (BaP)...

    journal_title:Food chemistry

    pub_type: 杂志文章,评审

    doi:10.1016/j.foodchem.2013.10.088

    authors: Riachi LG,Santos A,Moreira RF,De Maria CA

    更新日期:2014-04-15 00:00:00

  • Protective effect of marine algae phlorotannins against AAPH-induced oxidative stress in zebrafish embryo.

    abstract::In this study the protective effect of phlorotannins, including phloroglucinol, eckol, dieckol, eckstolonol and triphloroethol A, isolated from brown algae Ecklonia cava was investigated against AAPH-induced oxidative stress toxicity in zebrafish embryos. Zebrafish embryos were exposed to AAPH and compared with other ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2012.11.005

    authors: Kang MC,Cha SH,Wijesinghe WA,Kang SM,Lee SH,Kim EA,Song CB,Jeon YJ

    更新日期:2013-06-01 00:00:00

  • Characteristics and immune-enhancing activity of pectic polysaccharides from sweet cherry (Prunus avium).

    abstract::Two water soluble polysaccharides components PAPS-1 and PAPS-2 with homogeneously distributed molecular weight were obtained from Prunus avium. PAPS-1 and PAPS-2 contained GalA: Ara: Gal: Rha: GluA: Glu in 49.38: 32.39: 10.68: 4.66: 1.94: 0.48 and 77.18: 14.91: 3.39: 3.46: 0.93: 0.19 M ratios respectively, as well as ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2018.01.145

    authors: Cao J,Tang D,Wang Y,Li X,Hong L,Sun C

    更新日期:2018-07-15 00:00:00

  • A data fusion model merging information from near infrared spectroscopy and X-ray fluorescence. Searching for atomic-molecular correlations to predict and characterize the composition of coffee blends.

    abstract::This article aims to develop and validate a multivariate model for quantifying Robusta-Arabica coffee blends by combining near infrared spectroscopy (NIRS) and total reflection X-ray fluorescence (TXRF). For this aim, 80 coffee blends (0.0-33.0%) were formulated. NIR spectra were obtained in the wavenumber range 11100...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2020.126953

    authors: Assis C,Gama EM,Nascentes CC,de Oliveira LS,Anzanello MJ,Sena MM

    更新日期:2020-04-30 00:00:00

  • Fluorescence imaging of spatial location of lipids and proteins during digestion of protein-stabilized oil-in-water emulsions: A simulated gastrointestinal tract study.

    abstract::A whey protein isolate-rhodamine B conjugate (WPI-RB) was synthesized to visualize changes in the location of a protein emulsifier in oil-in-water emulsions during digestion. An oil-soluble dye (Nile Red) was used to visualize changes in the lipid phase during digestion. Protein-labeled and lipid-labeled emulsions wer...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2016.09.158

    authors: Mun S,Kim J,McClements DJ,Kim YR,Choi Y

    更新日期:2017-03-15 00:00:00

  • Bioavailability and antioxidant potential of rooibos flavonoids in humans following the consumption of different rooibos formulations.

    abstract::In a complete crossover design, a human study with twelve healthy male volunteers has been conducted using a placebo and different rooibos drinks (rooibos tea and an isolated active fraction) from unfermented rooibos (Aspalathus linearis). Blood and urine samples were collected before and up to 24h after consumption o...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2011.03.029

    authors: Breiter T,Laue C,Kressel G,Gröll S,Engelhardt UH,Hahn A

    更新日期:2011-09-15 00:00:00

  • Inhibitory effect of chestnut (Castanea mollissima Blume) inner skin extract on the activity of α-amylase, α-glucosidase, dipeptidyl peptidase IV and in vitro digestibility of starches.

    abstract::This study aimed to investigate the inhibitory effect of chestnut inner skin extract (CISE) on the activity of postprandial blood sugar-related enzymes. In total, 12 flavonoids were identified by HPLC-TOF-MS. CISE showed strong and weak inhibition on α-amylase and α-glucosidase, with the IC50 of 27.2 and 2.3 μg/mL, re...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2020.126847

    authors: Zhang Y,Yang Z,Liu G,Wu Y,Ouyang J

    更新日期:2020-09-15 00:00:00

  • Novel liquid chromatography-mass spectrometry method for sensitive determination of the mustard allergen Sin a 1 in food.

    abstract::Mustard is a condiment added to a variety of foodstuffs and a frequent cause of food allergy. A new strategy for the detection of mustard allergen in food products is presented. The methodology is based on liquid chromatography analysis coupled to mass spectrometry. Mustard allergen Sin a 1 was purified from yellow mu...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2015.02.139

    authors: Posada-Ayala M,Alvarez-Llamas G,Maroto AS,Maes X,Muñoz-Garcia E,Villalba M,Rodríguez R,Perez-Gordo M,Vivanco F,Pastor-Vargas C,Cuesta-Herranz J

    更新日期:2015-09-15 00:00:00

  • Film forming ability of gelatins from splendid squid (Loligo formosana) skin bleached with hydrogen peroxide.

    abstract::Properties of gelatin films from splendid squid (Loligo formosana) skin bleached with hydrogen peroxide (H(2)O(2)) at various concentrations (0-8% w/v) were investigated. Tensile strength (TS) and water vapour permeability (WVP) of films decreased, but elongation at break (EAB) increased (p<0.05) as the concentration ...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2012.11.069

    authors: Nagarajan M,Benjakul S,Prodpran T,Songtipya P,Nuthong P

    更新日期:2013-06-01 00:00:00

  • Laser Induced breakdown spectroscopy: A rapid tool for the identification and quantification of minerals in cucurbit seeds.

    abstract::Laser-induced breakdown spectroscopy (LIBS) was investigated to estimate the viability as a simple and rapid method for analysis of nutrient elements in seed kernels of cucurbits. LIBS spectra were recorded in the range of 200-975nm by using Q-switched Nd:YAG laser at 532nm (4ns, 10Hz) attached to echelle spectrometer...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2016.10.104

    authors: Singh J,Kumar R,Awasthi S,Singh V,Rai AK

    更新日期:2017-04-15 00:00:00

  • Characterization, enhancement and modelling of mannosylerythritol lipid production by fungal endophyte Ceriporia lacerate CHZJU.

    abstract::The glycolipid biosurfactants mannosylerythritol lipids (MELs) attract great attention for their biodegradability, super emulsifying properties and versatile bioactivities. In this study, the MEL deriving from Ceriporia lacerate CHZJU was identified as MEL-A, and its critical micelle concentration and emulsifying acti...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2017.02.042

    authors: Niu Y,Fan L,Gu D,Wu J,Chen Q

    更新日期:2017-08-01 00:00:00

  • (1)H NMR spectroscopy for profiling complex carbohydrate mixtures in non-fractionated beer.

    abstract::A plethora of biological and biotechnological processes involve the enzymatic remodelling of carbohydrates in complex mixtures whose compositions affect both the processes and products. In the current study, we employed high-resolution (1)H NMR spectroscopy for the analysis of cereal-derived carbohydrate mixtures as e...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2013.10.136

    authors: Petersen BO,Nilsson M,Bøjstrup M,Hindsgaul O,Meier S

    更新日期:2014-05-01 00:00:00

  • Structure-based screening for discovery of sweet compounds.

    abstract::Sweet taste is a cue for calorie-rich food and is innately attractive to animals, including humans. In the context of modern diets, attraction to sweetness presents a significant challenge to human health. Most known sugars and sweeteners bind to the Venus Fly Trap domain of T1R2 subunit of the sweet taste heterodimer...

    journal_title:Food chemistry

    pub_type: 杂志文章

    doi:10.1016/j.foodchem.2020.126286

    authors: Ben Shoshan-Galeczki Y,Niv MY

    更新日期:2020-06-15 00:00:00