Abstract：
:Quercetin found chelate cadmium ions, scavenge free radicals produced by cadmium. Hence new complex, quercetin with cadmium was synthesised, and the synthesised complex structures were determined by UV-vis spectrophotometry, infrared spectroscopy, thermogravimetry and differential thermal analysis techniques (UV-vis, IR, TGA and DTA). The equilibrium stability constants of quercetin-cadmium complex were determined by Job's method. The determined stability constant value of quercetin-cadminum complex at pH 4.4 is 2.27×10(6) and at pH 7.4 is 7.80×10(6). It was found that the quercetin and cadmium ion form 1:1 complex in both pH 4.4 and pH 7.4. The structure of the compounds was elucidated on the basis of obtained results. Furthermore, the antioxidant activity of the free quercetin and quercetin-cadmium complexes were determined by DPPH and ABTS assays.
journal_name
Food Chemjournal_title
Food chemistryauthors
Ravichandran R,Rajendran M,Devapiriam Ddoi
10.1016/j.foodchem.2013.09.080subject
Has Abstractpub_date
2014-03-01 00:00:00pages
472-8eissn
0308-8146issn
1873-7072pii
S0308-8146(13)01345-9journal_volume
146pub_type
杂志文章相关文献
FOOD CHEMISTRY文献大全abstract：:Red cabbage contains glucosinolates, precursors to health-promoting isothiocyanates. However, raw cabbage often releases mainly epithionitriles and nitriles from glucosinolates. To increase isothiocyanate formation, the effect of acid usage in the preparation of red cabbage was evaluated. Moreover, the effects of the ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2020.126694
更新日期：2020-08-15 00:00:00
abstract：:The following oligostilbenoids were isolated from extracts of Vitis vinifera L. Pinot Noir grape canes produced at a pilot-plant scale: (E)-ε-viniferin, (E)-resveratrol, (E)-piceatannol, ampelopsin A, vitisin B, pallidol, (E)-δ-viniferin, (E)-ω-viniferin, (E)-trans-cis-miyabenol C, isorhapontigenin, scirpusin A, and a...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2018.05.050
更新日期：2018-11-01 00:00:00
abstract：:Ultrasound technology offers low cost and efficiency in nanodrug production and therefore was selected to investigate the formation of rutin nanocrystals, and its incorporation in barley starch pyrodextrin. Ultrasonication of rutin (600 W in water, citric acid and NaCl media) was carried out prior to rutin-barley star...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2020.128626
更新日期：2021-05-15 00:00:00
abstract：:Fruiting bodies of the oyster mushroom Pleurotus ostreatus were illuminated with UV-B with a light intensity maximum at 310-320 nm and 11.5 W/m² for 60 min at 20 °C. Changes of the sterol and fatty acid spectrum were quantified. The onset of ergocalciferol (vitamin D₂) formation was immediate in fruiting bodies illumi...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2013.10.064
更新日期：2014-04-15 00:00:00
abstract：:We assessed the effects of postharvest exogenous melatonin (50,100 and 150 µmol L-1) on the senescence and quality of sweet cherries during storage at 0 ± 0.5 °C. Melatonin treatment decreased decay incidence, respiration rate, and weight loss. It delayed the degradation of firmness, lightness, saturation, hue angle, ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2019.125311
更新日期：2019-12-15 00:00:00
abstract：:The increasing global trade of fishery and aquaculture products makes it necessary to develop methods for species identification in case of fish fillets or other highly processed seafood with external morphological characteristics (e.g. gills, fins) of the original fish being removed. Species identification methods ba...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2012.10.057
更新日期：2013-05-01 00:00:00
abstract：:"Cipolla di Giarratana", a locally cultivated white onion landrace, is listed as an item in the 'List of Traditional Agro-food Products' of the Italian Department for Agriculture and itemised as 'slow food presidium' by the Slow Food Foundation. Ten local accessions were investigated for their biomorphological and bio...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2012.10.134
更新日期：2013-10-15 00:00:00
abstract：:In this study, ultrasound was used to modulate the molecular structure of retrograded starch (RS3) responsible for the digestion properties, and the relationships among the ultrasonic power, molecular structure, and RS3 digestibility were revealed. Results revealed that the morphological characteristics of RS3 changed...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2019.05.050
更新日期：2019-10-01 00:00:00
abstract：:Variation in salt content and in pH are common in starch-based foods and can affect starch properties and final product texture. Fifteen accessions of proso millet starch with diverse amylose content were selected to investigate single factor and interaction effects of pH and NaCl on thermal, pasting, and textural pro...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2020.127784
更新日期：2021-02-01 00:00:00
abstract：:In this study, electron spin resonance (ESR) and Raman spectroscopy were applied to characterize lipid oxidation of beef during repeated freeze-thaw (RFT). Besides the conventional indexes including peroxide values (PV), thiobarbituric acid-reactive substances (TBARS) and acid values (AV) were evaluated, the radical a...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2017.09.115
更新日期：2018-03-15 00:00:00
abstract：:In our study, octenyl succinic anhydride (OSA)-modified dextrin was prepared and characterized as a novel emulsifier to improve the stability of emulsion and curcumin encapsulation. Fourier-transform infrared spectroscopy demonstrated the occurrence of esterification between OSA and dextrin (Mw = 1.041 × 104 g/mol). T...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2019.05.053
更新日期：2019-10-01 00:00:00
abstract：:A methodology to develop systematic plans for food sampling was proposed. Long life whole and skimmed milk, and sunflower oil were selected to validate the methodology in Argentina. Fatty acid profile in all foods, proximal composition, and calcium's content in milk were determined with AOAC methods. The number of sam...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2015.03.083
更新日期：2016-02-15 00:00:00
abstract：:By definition, antioxidants are molecules that inhibit the oxidation of other molecules. Therefore, such compounds have very important clinical roles. In this study alginate polymer was depolymerized by heat treatment. The resulting low molecular weight alginates were investigated by UV-visible spectroscopy, Viscometr...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2015.09.091
更新日期：2016-04-01 00:00:00
abstract：:This paper investigates the phenolic composition of 17 monocultivar commercial cold-pressed grape seed oils. Chromatographic profiles showed the presence of more than 28 molecules, 11 of which were successfully identified by HPLC-DAD-MS-TOF and HPLC-FLD analysis. Pinoresinol, ethyl caffeate and ethyl gallate were dete...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2018.07.140
更新日期：2019-01-15 00:00:00
abstract：:Two kinds of pasta were produced: dry Maccheronccinis pasta and fresh Cicatellis pasta. Four formulations were made for each type: control pasta made with 100% semolina and enriched pasta containing different levels of broad bean flour. Thermal properties were measured using Differential Scanning Calorimetry and revea...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2018.11.036
更新日期：2019-04-25 00:00:00
abstract：:A total of 58 polyfloral honey samples from different regions in Serbia were studied to determine their phenolic profile, total phenolic content and antioxidant capacity. UHPLC-LTQ OrbiTrap MS made possible the identification of 36 compounds: 24 flavonoids, two abscisic acids, and 10 phenolic acids and their derivativ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2013.08.088
更新日期：2014-02-15 00:00:00
abstract：:A novel ultrasound-assisted back extraction reverse micelles coupled with gas chromatography-flame ionization detection has been developed for the extraction and determination of some short chain aldehydes in different heated edible oil samples. After the homogenization of the oil samples with Triton X-100, 200 μL of ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2015.04.112
更新日期：2015-12-01 00:00:00
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
更新日期：2015-09-15 00:00:00
abstract：:Owing to the overall increase in herbal infusions' consumption, there's a progressively higher need of suitable plant material, as well as adequate conservation techniques to maintain its quality. Among, the available technologies, irradiation is gaining interest as a feasible preservation method. In line with this ap...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2017.07.113
更新日期：2018-02-01 00:00:00
abstract：:While analytical methods targeting specific compounds are critical for food safety, analytes excluded from the targeted list will not be identified. Non-targeted analyses (NTA) using LC/HR-MS complement these approaches by producing information-rich data sets where molecular formula can be generated for each detected ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2020.128540
更新日期：2020-11-04 00:00:00
abstract：:It was evaluated the physiological aspects of the cagaita (Eugenia dysenterica) development, from anthesis to ripening. The fruits have been subjected to physical and chemical analysis during the fruit life cycle. The total fruit development comprised 37days. There was a steady increase in the total mass of the fruits...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2016.08.054
更新日期：2017-02-15 00:00:00
abstract：:In this study, a paper-based microfluidic enzyme-linked immunosorbent assay (ELISA) was developed as a screening system for rapid detection of clenbuterol, which is illegally used as a growth promoter for food-producing animals. The microfluidic paper-based analytical device (μPAD) was combined with ELISA and the intr...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2017.12.022
更新日期：2018-04-25 00:00:00
abstract：:Near-infrared (NIR) diffuse reflectance spectroscopy was used to evaluate the quality of fresh chestnuts, which can be affected by mildew, water, and levels of water-soluble sugars. The NIR spectra were determined and then modeling was performed including principal component analysis - discriminant analysis (PCA-DA), ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2017.03.127
更新日期：2017-09-15 00:00:00
abstract：:In order to elucidate the heat-induced wheat gluten gel formation mechanism, changes in chemical interactions and protein conformation were investigated during gelation. The contribution of ionic and hydrogen bonds were found to decrease from 0.746 and 4.133g/L to 0.397 and 2.733g/L, respectively, as the temperature i...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2016.07.037
更新日期：2017-01-01 00:00:00
abstract：:A method was described for monitoring four nitrofuran metabolites including 5-methylmorpholino-3-amino-2-oxazolidinone (AMOZ), 3-amino-2-oxazolidone (AOZ), 1-amino-hydantoin (AHD) and semicarbazide (SEM) in aquatic products. The analytes were quantified by ultra-performance liquid chromatography-tandem mass spectromet...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2015.07.035
更新日期：2016-02-01 00:00:00
abstract：:This study was undertaken to evaluate the antioxidant potential and protective effects of Celosia cristata L. (Family: Amaranthaceae) flower (CCF) extracts on tert-butyl-hydroperoxide (t-BHP)-induced oxidative damage in the hepatocytes of Chang cells and rat livers. In vitro, CCF extracts exhibited protective effect t...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2014.07.106
更新日期：2015-02-01 00:00:00
abstract：:Methyl jasmonate (MeJA) was applied in a vineyard on leaves and grape clusters of cv Sangiovese to test its ability to stimulate the production of aromas and identify the main genes involved in the biosynthetic pathways switched on by the elicitor. MeJA application led to a delay in grape technological maturity and a ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2017.09.084
更新日期：2018-03-01 00:00:00
abstract：:The aims of the present work were to identify and quantify the polyphenolic profile of okra (Abelmoschus esculentus), a vegetable almost worldwide consumed. Since the knowledge about the okra polyphenolic compounds is limited, the seeds and the skins of okra were separately analyzed. The seeds, which represent the 17%...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2008.03.014
更新日期：2008-10-15 00:00:00
abstract：:The compounds 4-vinylphenol (4-VP), 4-vinylguaiacol (4-VG), 4-vinylsyringol (4-VS) and 4-vinylcatechol (4-VC) were prepared by thermal decarboxylation of the corresponding hydroxycinnamic acids p-coumaric, ferulic, sinapic and caffeic acid, respectively. For confirmation of the synthesised products LC-MS followed by N...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2011.02.077
更新日期：2011-09-01 00:00:00
abstract：:The use of starters during fermentation has been gaining momentum as it can warrant high-quality chocolate. The objective of this study was to investigate the influence of Saccharomyces cerevisiae (Sc) and Pichia kudriavzevii (Pk) during on-farm fermentation on physico-chemical and microbiological characteristics and ...
journal_title：Food chemistry
pub_type： 杂志文章
doi：10.1016/j.foodchem.2020.127834
更新日期：2021-02-15 00:00:00
