The role of low molecular weight organic acids in release kinetics of zinc and cadmium in polluted calcareous soil in the presence of fish scales derivatives

2020 ◽  
pp. 1-14
Author(s):  
Reza Ghasemi-Fasaei ◽  
Zeynab Paridar ◽  
Abdolmajid Ronaghi
Keyword(s):  
Molecular Weight ◽  
Organic Acids ◽  
Calcareous Soil ◽  
Release Kinetics ◽  
Low Molecular Weight ◽  
Fish Scales ◽  
Kinetics Of

scholarly journals Influence of Iron Addition (Alone or with Calcium) to Elements Biofortification and Antioxidants in Pholiota nameko

Plants ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 2275
Author(s):  
Sylwia Budzyńska ◽  
Marek Siwulski ◽  
Zuzanna Magdziak ◽  
Anna Budka ◽  
Monika Gąsecka ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Phenolic Compounds ◽  
Organic Acids ◽  
Low Molecular Weight ◽  
Fruiting Bodies ◽  
Pholiota Nameko ◽  
Iron Addition

Mushrooms supplementation with iron (Fe) is usually limited, and therefore it would be beneficial to search for other vital elements able to improve the process. The aim of this study was to verify a possible interaction between Fe and calcium (Ca) to estimate the role of the addition of the latter metal to stimulate Fe accumulation in Pholiota nameko. Additionally, an analysis of phenolic compounds and low molecular weight organic acids (LMWOAs) was performed. The increase of Fe concentration in the substrate caused a significantly higher accumulation of this metal in P. nameko. The addition of Ca (5 or 10 mM) stimulated Fe accumulation, just as Fe concentration in the substrate stimulated Ca accumulation, which pointed to a synergism between these metals. The obtained results show that the presence of Fe in the substrate may also promote K, Mg, Mn, Na, P, and S accumulation. In contrast, the addition of Ca stimulates and/or inhibits their content in fruit bodies. The phenolic and organic acids profile was poor. Only gallic, 4-hydroxybenzoic, sinapic and syringic acids (phenolics), as well as citric and succinic acids (LMWOAs), were quantified in some combinations in P. nameko fruiting bodies.

Excretion by the Malpighian Tubules of the Stick Insect, Dixippus Morosus (Orthoptera, Phasmidae): Amino Acids, Sugars and Urea

1958 ◽  
Vol 35 (4) ◽  
pp. 871-891 ◽  
Author(s):  
J. A. RAMSAY
Keyword(s):  
Amino Acids ◽  
Molecular Weight ◽  
Stick Insect ◽  
Passive Diffusion ◽  
Malpighian Tubules ◽  
Excretory System ◽  
Low Molecular Weight ◽  
Kinetics Of

1. Contrary to expectation, it is found that metabolically useful substances pass into the urine and are reabsorbed in the rectum. 2. The kinetics of penetration have been investigated for six amino acids, three sugars and urea. 3. The evidence indicates that these substances enter the urine by passive diffusion. 4. The role of the Malpighian tubules in the insect's excretory system is discussed in the light of these findings. It is suggested that the tubule is primarily a means whereby all soluble substances of low molecular weight are removed from the haemolymph and that in this respect it has analogies with the glomerulus as well as with the tubule of the vertebrate nephron.

scholarly journals The role of low molecular weight organic acids in the release of phosphorus from sewage sludge-based biochar

All Life ◽  
2021 ◽  
Vol 14 (1) ◽  
pp. 599-609
Author(s):  
Chandra Sekhar Paul ◽  
Filip Mercl ◽  
Jiřina Száková ◽  
Václav Tejnecký ◽  
Pavel Tlustoš
Keyword(s):  
Molecular Weight ◽  
Sewage Sludge ◽  
Organic Acids ◽  
Low Molecular Weight
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