scholarly journals Iron speciation in aerosol dust influences iron bioavailability over glacial-interglacial timescales

2013 ◽  
Vol 40 (8) ◽  
pp. 1618-1623 ◽  
Author(s):  
A. Spolaor ◽  
P. Vallelonga ◽  
G. Cozzi ◽  
J. Gabrieli ◽  
C. Varin ◽  
...  
Keyword(s):  
Iron Bioavailability ◽  
Iron Speciation ◽  
Aerosol Dust

scholarly journals Mass spectrometry-based analytical developments to link iron speciation to iron bioavailability in maize

2019 ◽  
Vol 294 ◽  
pp. 414-422 ◽  
Author(s):  
Shuanglong Wang ◽  
Laurent Ouerdane ◽  
Owen Hoekenga ◽  
Joanna Szpunar ◽  
Ryszard Lobinski
Keyword(s):  
Mass Spectrometry ◽  
Iron Bioavailability ◽  
Iron Speciation

scholarly journals Retention, stability, iron bioavailability and sensory evaluation of extruded rice fortified with iron, folic acid and vitamin B 12

2020 ◽  
Vol 16 (S3) ◽  
Author(s):  
Yvette Wilda Jyrwa ◽  
Ravindranadh Palika ◽  
Swetha Boddula ◽  
Naveen Kumar Boiroju ◽  
Radhika Madhari ◽  
...  
Keyword(s):  
Folic Acid ◽  
Sensory Evaluation ◽  
Iron Bioavailability ◽  
Vitamin B ◽  
Vitamin B 12 ◽  
Iron Folic Acid

scholarly journals An Untargeted Metabolomics Approach for Correlating Pulse Crop Seed Coat Polyphenol Profiles with Antioxidant Capacity and Iron Chelation Ability

Molecules ◽  
2021 ◽  
Vol 26 (13) ◽  
pp. 3833
Author(s):  
Fatma M. Elessawy ◽  
Albert Vandenberg ◽  
Anas El-Aneed ◽  
Randy W. Purves
Keyword(s):  
Antioxidant Capacity ◽  
Seed Coat ◽  
Iron Chelation ◽  
Iron Bioavailability ◽  
Untargeted Metabolomics ◽  
Black Bean ◽  
Pulse Crops ◽  
Pulse Crop ◽  
Seed Coats ◽  
Crop Seed

Pulse crop seed coats are a sustainable source of antioxidant polyphenols, but are typically treated as low-value products, partly because some polyphenols reduce iron bioavailability in humans. This study correlates antioxidant/iron chelation capabilities of diverse seed coat types from five major pulse crops (common bean, lentil, pea, chickpea and faba bean) with polyphenol composition using mass spectrometry. Untargeted metabolomics was used to identify key differences and a hierarchical analysis revealed that common beans had the most diverse polyphenol profiles among these pulse crops. The highest antioxidant capacities were found in seed coats of black bean and all tannin lentils, followed by maple pea, however, tannin lentils showed much lower iron chelation among these seed coats. Thus, tannin lentils are more desirable sources as natural antioxidants in food applications, whereas black bean and maple pea are more suitable sources for industrial applications. Regardless of pulse crop, proanthocyanidins were primary contributors to antioxidant capacity, and to a lesser extent, anthocyanins and flavan-3-ols, whereas glycosylated flavonols contributed minimally. Higher iron chelation was primarily attributed to proanthocyanidin composition, and also myricetin 3-O-glucoside in black bean. Seed coats having proanthocyanidins that are primarily prodelphinidins show higher iron chelation compared with those containing procyanidins and/or propelargonidins.

Iron Bioavailability from Diets Consumed by Different Socioeconomic Strata of the Venezuelan Population

1995 ◽  
Vol 125 (7) ◽  
pp. 1860-1868 ◽  
Author(s):  
Peter G. Taylor ◽  
Hernán Méndez-Castellanos ◽  
Carlos Martínez-Torres ◽  
Werner Jaffe ◽  
Mercedes López de Blanco ◽  
...  
Keyword(s):  
Iron Bioavailability ◽  
Socioeconomic Strata ◽  
Venezuelan Population

scholarly journals Expression of a Truncated Yeast Ccc1 Vacuolar Transporter Increases the Accumulation of Endogenous Iron

Genes ◽  
2021 ◽  
Vol 12 (8) ◽  
pp. 1120
Author(s):  
Raquel Sorribes-Dauden ◽  
María Teresa Martínez-Pastor ◽  
Sergi Puig
Keyword(s):  
Iron Homeostasis ◽  
Sufficient Conditions ◽  
Constitutive Expression ◽  
Iron Bioavailability ◽  
Full Length ◽  
Yeast Cells ◽  
Deficiency Anemia ◽  
Functional Protein ◽  
Amino Terminal ◽  
In Cells

Iron is an essential micronutrient for all eukaryotic organisms because it participates as a redox cofactor in multiple metabolic processes. Iron bioavailability is highly restricted due to the low solubility of its oxidized form, frequently leading to iron deficiency anemia. The baker’s yeast Saccharomyces cerevisiae is used as a model organism for iron homeostasis studies, but also as a food supplement and fermentative microorganism in the food industry. Yeast cells use the vacuolar Ccc1 transporter to detoxify and store excess iron in the vacuoles. Here, we modulate CCC1 expression and properties to increase iron extraction from the environment. We show that constitutive expression of full-length CCC1 is toxic, whereas deletion of its cytosolic amino-terminal (Nt) domain (NtDCCC1) rescues this phenotype. Toxicity is exacerbated in cells lacking AFT1 transcription factor. Further characterization of NtDCcc1 protein suggests that it is a partially functional protein. Western blot analyses indicate that deletion of Ccc1 Nt domain does not significantly alter GFP-Ccc1 protein stability. A functional full-length GFP-Ccc1 protein localized to particular regions of the vacuolar membrane, whereas GFP-NtDCcc1 protein was evenly distributed throughout this endogenous membrane. Interestingly, expression of NtDCCC1 increased the accumulation of endogenous iron in cells cultivated under iron-sufficient conditions, a strategy that could be used to extract iron from media that are not rich in iron.

scholarly journals Petrobactin, a siderophore produced by Alteromonas, mediates community iron acquisition in the global ocean

2021 ◽  
Author(s):  
Lauren E. Manck ◽  
Jiwoon Park ◽  
Benjamin J. Tully ◽  
Alfonso M. Poire ◽  
Randelle M. Bundy ◽  
...  
Keyword(s):  
Biosynthetic Pathway ◽  
Iron Acquisition ◽  
Biogeochemical Cycling ◽  
Iron Bioavailability ◽  
Siderophore Production ◽  
Global Ocean ◽  
The North ◽  
The North Pacific ◽  
Alteromonas Macleodii

AbstractIt is now widely accepted that siderophores play a role in marine iron biogeochemical cycling. However, the mechanisms by which siderophores affect the availability of iron from specific sources and the resulting significance of these processes on iron biogeochemical cycling as a whole have remained largely untested. In this study, we develop a model system for testing the effects of siderophore production on iron bioavailability using the marine copiotroph Alteromonas macleodii ATCC 27126. Through the generation of the knockout cell line ΔasbB::kmr, which lacks siderophore biosynthetic capabilities, we demonstrate that the production of the siderophore petrobactin enables the acquisition of iron from mineral sources and weaker iron-ligand complexes. Notably, the utilization of lithogenic iron, such as that from atmospheric dust, indicates a significant role for siderophores in the incorporation of new iron into marine systems. We have also detected petrobactin, a photoreactive siderophore, directly from seawater in the mid-latitudes of the North Pacific and have identified the biosynthetic pathway for petrobactin in bacterial metagenome-assembled genomes widely distributed across the global ocean. Together, these results improve our mechanistic understanding of the role of siderophore production in iron biogeochemical cycling in the marine environment wherein iron speciation, bioavailability, and residence time can be directly influenced by microbial activities.

Improving iron bioavailability and nutritional value of maize (Zea maysL.) in sulfur-treated calcareous soil

2016 ◽  
Vol 63 (9) ◽  
pp. 1255-1266 ◽  
Author(s):  
Pia Muhammad Adnan Ramzani ◽  
Muhammad Khalid ◽  
Shazia Anjum ◽  
Waqas-ud-Din Khan ◽  
Muhammad Iqbal ◽  
...  
Keyword(s):  
Calcareous Soil ◽  
Nutritional Value ◽  
Iron Bioavailability

Comparative study of not from concentrate and reconstituted from concentrate of pomegranate juices on nutritional and sensory profile

2021 ◽  
pp. 108201322110037
Author(s):  
G Brunda ◽  
Urs Kavyashree ◽  
Shilpa S Shetty ◽  
Kirti Sharma
Keyword(s):  
Antioxidant Activity ◽  
Comparative Study ◽  
Essential Elements ◽  
Iron Bioavailability ◽  
Sensory Characteristics ◽  
Sensory Profile ◽  
Pomegranate Juice ◽  
Anthocyanin Content ◽  
Total Anthocyanin ◽  
Hepg2 Cell Lines

Pomegranate juice is popular due to its unique health benefits, sensory characteristics and also a good source of bioactive compounds. Comparative study on processing effect of Not from Concentrate (NFC) and Reconstituted from concentrate (RFC) pomegranate juice on the nutritional and sensory characteristics of ‘Ganesh’ variant was conducted. Results showed that not much differences observed in parameters like pH, acidity, essential elements, protein, total sugars and polyphenol content between NFC and RFC. As per the study NFC had a better antioxidant activity with intracellular ROS inhibition of 11% higher with significant ( p < 0.05) than RFC in HepG2 cell lines. Total anthocyanin content was significantly different ( p < 0.05) in NFC (428.05 mg/l) compared to 326.74 mg/l in RFC expressed as cyanidin-3-glucoside. Iron uptake was 40 units (µg/mg protein) higher in NFC than RFC ( p < 0.05) in HepG2 cells. Sensory flavor profile showed NFC having significant differences with respect to characteristic pomegranate freshness, fruitiness, sweetness and astringency mouthfeel. RFC had higher sweetish and cooked flavor with additional vegetable like notes of beet and carrot. Based on the data better antioxidant activity, iron bioavailability, anthocyanin content and sensory attributes were captured in pomegranate NFC juices over RFC juices.

Prebiotics and iron bioavailability? Unveiling the hidden association - A review

2021 ◽  
Vol 110 ◽  
pp. 584-590 ◽  
Author(s):  
Abdul Momin Rizwan Ahmad ◽  
Waqas Ahmed ◽  
Sanaullah Iqbal ◽  
Mavra Javed ◽  
Summer Rashid ◽  
...  
Keyword(s):  
Iron Bioavailability

scholarly journals Hemicellulose Does Not Affect Iron Bioavailability in Chicks

1996 ◽  
Vol 126 (1) ◽  
pp. 308-316 ◽  
Author(s):  
Alyce D. Fly ◽  
Gail L. Czarnecki-Maulden ◽  
George C. Fahey ◽  
Evan C. Titgemeyer
Keyword(s):  
Iron Bioavailability
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