scholarly journals Bioproducts characterization of residual periphytic biomass produced in an algal turf scrubber (ATS) bioremediation system

2020 ◽  
Vol 82 (6) ◽  
pp. 1247-1259
Author(s):  
Maiara P. de Souza ◽  
Tiele M. Rizzetti ◽  
Michele Hoeltz ◽  
Mainara Dahmer ◽  
João A. Júnior ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Optical Emission ◽  
Algal Turf ◽  
Gas Chromatography Mass Spectrometry ◽  
Emission Spectrometry ◽  
Inorganic Analysis ◽  
Array Detector ◽  
Algal Turf Scrubber ◽  
Social Gain

Abstract The transformation of residual biomass from bioremediation processes into new products is a worldwide trend driven by economic, environmental and social gain. The present study aimed to evaluate the potential for obtaining bioproducts of technological interest from the remaining periphytic biomass formed during a bioremediation process with an algal turf scrubber (ATS) system installed in a lake catchment. Different methodologies were used according to the target bioproduct. Analyses were performed by high performance liquid chromatography with diode array detector (HPLC/DAD), gas chromatography mass spectrometry (GC-MS), ultraviolet–visible spectroscopy (UV-VIS) and inductively coupled plasma optical emission spectrometry (ICP-OES). The results demonstrated that the periphytic biomass presented potential since protein (17.7%), carbohydrates (22.4%), total lipids (3.3%) with 3.6 mg mL−1 of fatty acids, antioxidants (144.5 μmol Trolox eq. g−1) and chlorophyll a, chlorophyll b and carotenoids (1,719.7 μg mL−1, 541.2 μg mL−1 and 317.7 μg mL−1, respectively) were obtained. Inorganic analysis presented a value of 42.3 ± 2.58% of total ash and metal presence was detected, indicating bioaccumulation. The properties found in periphyton strengthen the possibility of its application in different areas, ensuring bioremediation efficiency.

scholarly journals Elemental Analysis and Phenolic Profiles of Selected Italian Wines

Foods ◽  
2021 ◽  
Vol 10 (1) ◽  
pp. 158
Author(s):  
Paola Fermo ◽  
Valeria Comite ◽  
Milica Sredojević ◽  
Ivanka Ćirić ◽  
Uroš Gašić ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Radical Scavenging Activity ◽  
Radical Scavenging ◽  
Optical Emission ◽  
Emission Spectrometry ◽  
Total Phenolic ◽  
Array Detector ◽  
Triple Quadrupole Mass Spectrometer ◽  
Spectrophotometric Methods

The study of the chemical composition of wines is nowadays a topic of great interest because of the importance of this market, especially in Italy, and also considering the numerous cases of falsification of famous and very expensive wines. The present paper focused on the analysis of metals and polyphenols in Italian wines belonging to different provenance and types. At this purpose 20 elements were quantified by inductively coupled plasma optical emission spectrometry (ICP-OES) and ICP mass spectrometry (ICP-MS). Regarding polyphenols, a total of 32 were quantified, among 6 were anthocyanins. Furthermore, in 4 samples (1 rosè and 3 red wines) 42 anthocyanins and related compounds were identified by ultra-high performance liquid chromatography (UHPLC)-Orbitrap MS technique (among these, 6 were also quantified). Non-anthocyanins were determined using UHPLC coupled with a diode array detector and triple-quadrupole mass spectrometer (UHPLC–DAD-QqQ-MS). Total phenolic content (TPC) and radical scavenging activity (RSA) were measured using spectrophotometric methods. The results obtained by elemental techniques were submitted to principal components analysis (PCA) allowing to get information on both geographical and botanical origin of the examined wine samples. Some polyphenols have been detected in higher concentrations only in a certain type of wine, as for example in the case of Grechetto wine. Most of the identified anthocyanin derivatives (pyranoanthocyanins) are formed during the aging of wine by reaction with the other wine components.

scholarly journals Elemental and Speciation Analyses of Different Brands of Yerba Mate (Ilex paraguariensis)

Foods ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2925
Author(s):  
Jędrzej Proch ◽  
Aleksandra Orłowska ◽  
Przemysław Niedzielski
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Optical Emission ◽  
Arsenic Species ◽  
Emission Spectrometry ◽  
Ilex Paraguariensis ◽  
Dimethylarsinic Acid ◽  
Yerba Mate ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

In this work, a methodology for determination of As(III), As(V), dimethylarsinic acid (DMA), Fe(II) and Fe(III) in fifty-eight samples (forty-nine products of thirteen brands from three countries) commercial yerba mate (Ilex paraguariensis) was performed. The hyphenated high performance liquid chromatography inductively coupled plasma optical emission spectrometry (HPLC-ICP OES) technique was used. Arsenic was determined below the quantification limit in 38 samples of yerba mate. As(III) was found at the level 0.09 and 0.08 mg kg−1. The As(V) content was in the range: 0.21 to 0.28 mg kg−1. The content of DMA was found the highest of the three arsenic species in the range: 0.21 to 0.47 mg kg−1. The content of Fe(II) and Fe(III) was found in the range: 0.61 to 15.4 mg kg−1 and 0.66 to 43.1 mg kg−1, respectively and the dominance of Fe(III) was observed. Moreover, total and extractable content of 16 elements were determined. The results have been subjected to statistical analysis in order to establish relationships between samples of the same origin (country), kind (type) and composition (purity).

Modified high performance concentric nebulizer for inductively coupled plasma optical emission spectrometry

2012 ◽  
Vol 27 (10) ◽  
pp. 1787 ◽  
Author(s):  
Alexander S. Groombridge ◽  
Kazumi Inagaki ◽  
Shin-ichiro Fujii ◽  
Keisuke Nagasawa ◽  
Tetsuya Okahashi ◽  
...  
Keyword(s):  
Inductively Coupled Plasma ◽  
High Performance ◽  
Optical Emission ◽  
Optical Emission Spectrometry ◽  
Emission Spectrometry ◽  
Inductively Coupled ◽  
Plasma Optical Emission Spectrometry

scholarly journals Edible Leafy Plants from Mexico as Sources of Antioxidant Compounds, and Their Nutritional, Nutraceutical and Antimicrobial Potential: A Review

Antioxidants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 541 ◽  
Author(s):  
Lourdes Mateos-Maces ◽  
José Luis Chávez-Servia ◽  
Araceli Minerva Vera-Guzmán ◽  
Elia Nora Aquino-Bolaños ◽  
Jimena E. Alba-Jiménez ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Inductively Coupled Plasma ◽  
High Performance ◽  
Protein Quality ◽  
Amino Acid Content ◽  
Absorption Spectrometry ◽  
Gas Chromatography Mass Spectrometry ◽  
Emission Spectrometry ◽  
Antioxidant Compounds ◽  
Direct Function

A review of indigenous Mexican plants with edible stems and leaves and their nutritional and nutraceutical potential was conducted, complemented by the authors’ experiences. In Mexico, more than 250 species with edible stems, leaves, vines and flowers, known as “quelites,” are collected or are cultivated and consumed. The assessment of the quelite composition depends on the chemical characteristics of the compounds being evaluated; the protein quality is a direct function of the amino acid content, which is evaluated by high-performance liquid chromatography (HPLC), and the contribution of minerals is evaluated by atomic absorption spectrometry, inductively coupled plasma-optical emission spectrometry (ICP-OES) or ICP mass spectrometry. The total contents of phenols, flavonoids, carotenoids, saponins and other general compounds have been analyzed using UV-vis spectrophotometry and by HPLC. For the determination of specific compounds such as phenolic compounds, flavonoids, organic acids and other profiles, it is recommended to use HPLC-DAD, UHPLC-DAD, UFLC-PDA or gas chromatography-mass spectrometry. The current biochemical analysis and biological evaluations were performed to understand the mechanisms of action that lead to decreased glucose levels and lipid peroxidation, increased hypoglycemic and antitumor activity, immune system improvement, increased antibacterial and antifungal activity and, in some cases, anti-Helicobacter pylori activity.

scholarly journals Determination of Major-to-Trace Minerals and Polyphenols in Different Apple Cultivars

2014 ◽  
Vol 42 (2) ◽  
pp. 523-529 ◽  
Author(s):  
Doina Adina TODEA ◽  
Oana CADAR ◽  
Dorina SIMEDRU ◽  
Cecilia ROMAN ◽  
Claudiu TANASELIA ◽  
...  
Keyword(s):  
Trace Elements ◽  
Inductively Coupled Plasma ◽  
High Performance ◽  
Optical Emission ◽  
Major Elements ◽  
Emission Spectrometry ◽  
Climate Conditions ◽  
Inductively Coupled ◽  
Minor Elements ◽  
Apple Cultivars

The aim of this study was to investigate the concentration level of some major-to-trace elements and toxic minerals and polyphenols (catechin, epicatechin and quercetin) in fruits belonging to different apple cultivars (‘Auriu de Cluj’, ‘Florina’, ‘Generos’, ‘Golden Delicious’, ‘Prima’, ‘Productiv de Cluj’ and ‘Starkrimson’), under specific climate conditions to northwestern Romania. The apple minerals were determined by the inductively coupled plasma mass spectrometry (ICP-MS) and inductively coupled plasma optical emission spectrometry (ICP-OES) after a preliminary, microwave-assisted, acid digestion. The polyphenols were determined by high performance liquid chromatography (HPLC) with MS/MS detection. According to the obtained results, the edible part of the apple contains many minerals with high relative nutritional value (RNV). The major minerals (Na, K, Ca, Mg and P), minor elements (Cu, Fe, Mn, Sr and Zn) and toxic trace elements (Cd, Cr and Pb) were comparatively identified and quantified. It was found that K (31976 mg/kg) was predominant among the major elements, while Fe (3.68 mg/kg) and Cu (3.57 mg/kg) were comparable. The toxic trace metals (Cd, Cr and Pb) were below the limits of detection (0.01, 0.10 and 0.01 mg/kg, respectively) and did not determine any health risk to consumers. The main polyphenols composition (catechin, epicathechin, quercetin) differs slightly among different cultivars. In ‘Idared’ and ‘Jonathan’ cultivars, the investigated polyphenols are in higher quantities comparing to the others. In all investigated apple cultivars, quercetin was proved to be the major polyphenol, followed by epicathechin and catechin. These results suggest that, regarding only the investigated polyphenols, ‘Idared’ and ‘Jonathan’ cultivars have the highest antioxidant character in all investigated genotypes.

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