Physicochemical properties, antioxidant potential and mineral content of Miconia albicans (Sw.) Triana: a fruit with high aluminium content

2019 ◽  
Vol 42 (2) ◽  
pp. 209-216
Author(s):  
Paula Chiachia Pasta ◽  
Giselda Durigan ◽  
Izabel Cristina Freitas Moraes ◽  
Leomara Floriano Ribeiro ◽  
Charles Windson Isidoro Haminiuk ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Mineral Content ◽  
Antioxidant Potential ◽  
Aluminium Content ◽  
High Aluminium

Hydrotalcite Formed by Alteration of R7T7 Nuclear Waste Glass and Basaltic Glass in Salt Brine at 190°C

1993 ◽  
Vol 333 ◽  
Author(s):  
A. Abdelouas ◽  
J. L. Crovisier ◽  
W. Lutze ◽  
R. Müller ◽  
W. Bernotat
Keyword(s):  
Nuclear Waste ◽  
Waste Glass ◽  
Aluminium Content ◽  
Basaltic Glass ◽  
Alteration Product ◽  
Nuclear Waste Glass ◽  
Salt Brine ◽  
High Aluminium ◽  
Early Alteration

ABSTRACTThe R7T7 and synthetic basaltic glasses were submitted to corrosion in a saline MgCl2dominated solution at 190°C. For both glasses, the early alteration product is a hydrotalcite-like compound in which HPO42-, SO4-2and Cl-substitutes to CO32. The measured d003spacing is 7.68 Å for the hydrotalcite formed from R7T7 glass and 7.62 Å for the hydrotalcite formed from basaltic glass which reflect the high aluminium content. Chemical microanalyses show that the hydrotalcite is subsequently covered by a silica-rich gel which evolves into saponite after few months.

scholarly journals Mineral Composition and Antioxidant Potential in the Common Poppy (Papaver rhoeas L.) Petal Infusions

2020 ◽  
Vol 199 (1) ◽  
pp. 371-381
Author(s):  
Janda Katarzyna ◽  
Jakubczyk Karolina ◽  
Kupnicka Patrycja ◽  
Bosiacki Mateusz ◽  
Gutowska Izabela
Keyword(s):  
Vitamin C ◽  
Mineral Content ◽  
Antioxidant Potential ◽  
Effect Of Temperature ◽  
Total Polyphenol ◽  
Spectrophotometric Methods ◽  
Inflammatory Conditions ◽  
Different Temperatures ◽  
The Common ◽  
Increasing Temperature

AbstractThe flowers of the common poppy are used for medicinal purposes, both internally and externally. They are reported to have antispasmodic and antitussive properties, to alleviate inflammatory conditions and soothe anxiety-related digestive problems. The aim of the study was to determine the antioxidant potential and the content of vitamin C, polyphenols, and minerals in infusions made from the petals of the common poppy at different temperatures. The infusions were made at various temperatures (25 °C, 70 °C, 80 °C, and 90 °C). The antioxidant potential and the content of polyphenols and vitamin C were determined by spectrophotometric methods. The mineral content was determined using the ICP-OES method. The total polyphenol content ranged from 135.2 to 137.24 ppm and that of vitamin C—from 15.47 to 15.78 mg/100 mL. The temperature of the water used to make the infusions did not appear to have a significant effect on these parameters. The temperature did, however, significantly affect the antioxidant potential of the infusions—the highest antioxidant activity (71.21% DPPH inhibition) was observed in the infusion prepared using water at 80 °C. The infusions included in the study contained a number of minerals. No significant effect of temperature was found for the content of K, Zn, Cu, Fe, and Ni in the infusions. On the other hand, the content of Ca in the infusions was significantly correlated with the increasing temperature of the water. It was concluded that poppy petal infusions may serve as a valuable dietary supplement, providing antioxidants and minerals required by the human body to function properly.

scholarly journals Evaluation of physicochemical properties, antioxidant potential and baking quality of grain and flour of primitive rye (Secale cereale var. Multicaule)

2019 ◽  
Vol 56 (7) ◽  
pp. 3422-3430
Author(s):  
Małgorzata Warechowska ◽  
Józef Warechowski ◽  
Józef Tyburski ◽  
Ewa Siemianowska ◽  
Agnieszka Nawrocka ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Secale Cereale ◽  
Antioxidant Potential ◽  
Baking Quality

scholarly journals A First Approach to the Chemical Composition and Antioxidant Potential of Guinea-Bissau Propolis

2019 ◽  
Vol 14 (5) ◽  
pp. 1934578X1984413 ◽  
Author(s):  
Soraia I. Falcão ◽  
Mélissa Lopes ◽  
Miguel Vilas-Boas
Keyword(s):  
Antioxidant Activity ◽  
Chemical Composition ◽  
Physicochemical Properties ◽  
Natural Product ◽  
Broad Spectrum ◽  
Biological Activities ◽  
Chemical Diversity ◽  
Antioxidant Potential ◽  
Phenolic Composition ◽  
First Time

Propolis is a natural product derived from plant resins collected by honeybees and used in the beehive as a construction and defensive material. The broad spectrum of biological activities is dependent on the chemical diversity of its composition which is determined by the floral sources at the site of collection. For the first time, the chemical composition of Guinean propolis as well as its physicochemical properties, phenolic composition, and antioxidant activity was assessed. Eight compounds were identified through LC/DAD/ESI-MS n , mostly isoflavonoids, resembling Nigerian and Brazilian red propolis from the genus Dalbergia.

Beneficiation of High-Aluminium-Content Hematite Ore by Soda Ash Roasting

2010 ◽  
Vol 31 (3) ◽  
pp. 150-164 ◽  
Author(s):  
Guanghui Li ◽  
Tao Jiang ◽  
Mudan Liu ◽  
Taihua Zhou ◽  
Xiaohui Fan ◽  
...  
Keyword(s):  
Aluminium Content ◽  
Hematite Ore ◽  
High Aluminium ◽  
Soda Ash

1303 Fabricartition of high aluminium content M14 alloys using l horizontal twin roll caster

2012 ◽  
Vol 2012.18 (0) ◽  
pp. 411-412
Author(s):  
Hideto HARADA ◽  
Takayuki NAGUMO ◽  
Masaki ENDO ◽  
Shinichi NISHIDA ◽  
Hisaki WATARI
Keyword(s):  
Aluminium Content ◽  
Twin Roll Caster ◽  
Twin Roll ◽  
High Aluminium

scholarly journals Physicochemical properties and mineral and protein content of honey samples from Ceará state, Northeastern Brazil

2013 ◽  
Vol 33 (1) ◽  
pp. 38-46 ◽  
Author(s):  
Maria da Conceição Tavares Cavalcanti Liberato ◽  
Selene Maia de Morais ◽  
Carlos Emanuel de Carvalho Magalhães ◽  
Islay Lima Magalhães ◽  
Daniel Bomfim Cavalcanti ◽  
...  
Keyword(s):  
Trace Elements ◽  
Physicochemical Properties ◽  
Protein Content ◽  
Mineral Content ◽  
Chemical Constituents ◽  
Absorption Spectrometry ◽  
Northeastern Brazil ◽  
Honey Sample ◽  
Nutritional Importance ◽  
Compliance With The Law

This study evaluated the physicochemical properties and protein and mineral content of honey samples from Ceará State, Northeastern Brazil, one of the major honey exporters in the country. Nutritional importance of the minerals detected was also analyzed. Physicochemical properties were examined according to the AOAC and CAC official methods; the protein content was determined using the Bradford method, and the minerals were analyzed by atomic absorption spectrometry. All analyses were performed in triplicate. The levels of macrominerals sodium (Na), potassium (K), calcium (Ca), and magnesium (Mg) varied from 1.80-47.20, 21.30-1513.30, 14.58-304.82, and 2.48-28.33 mg/kg, respectively, and the trace elements iron (Fe), copper (Cu), manganese (Mn), zinc (Zn), selenium (Se), and chromium (Cr) varied from 0.12-8.76, 0.07-1.29, 0.06-1.96, 0.07-1.85 mg/kg, 0.36 × 10-3-62.00 × 10-3 and 22.50 × 10-3-170.33 × 10-3 µg/kg, respectively. Myracrodruon urundeuva honey sample had high contents of macrominerals (Na, K, Ca, and Mg). Protein content of the Anacardium occidentale honey sample was the highest (1121.00 µg/g) among the samples analyzed. Among the minerals detected in the honey samples, K showed the highest concentration, followed by Ca, Na, and Mg. The presence of trace elements can show environmental contamination. The honey samples studied were free of trace elements contamination, except for Mn; the Piptadenia moniliformis was the only honey sample that was in compliance with the law requirements. The variations of the chemical constituents in the honey samples are probably related to differences in the floral origin and mineral and protein contents and confirm the nutritional importance of Ceará State honey.

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