refers to molecular-level characteristics such as elemental composition, functional groups, and molecular conFormation of chemically resistant humic substances might be an formation that influence the inherent biodegradability important process controlling recycling of soil C to the atmosphere. of the molecule. Interactions refers to the intermolecular Humic substances are believed to be resist...

The speciation of uranyl ions in fulvic acid (FA) and humic acid (HA), based on models of larger sizes, is systematically studied using density functional theory (DFT). Four uranyl binding sites are suggested for FA and based on their energetics, the preferential binding sites are proposed. The computed binding sites include two chelating types, one through the carboxylate group and one via the...

The formulation of the transdermal patch with fulvic acid (FA) on an emulsion basis using pluronic Kolliphor® p237 as a permeability enhancer was developed and studied for anti-inflammatory properties. FA isolated from peat in Nizhny Novgorod region Russia characterized potential active pharmaceutical ingredient. In vitro studies release patch, well penetration through acetyl cellulose membrane...

水耕栽培のリーフレタスへの鹹水フルボ酸の成長に及ぼす影響の解明のため，内生植物ホルモン，インドール-3-酢酸（IAA），トランスゼアチン（tZ），イソペンテニルアデニン（iP），ジベレリン1（GA1），ジベレリン4（GA4），アブシジン酸（ABA）を定量した．39日間の水耕栽培後の地上部の生重量は，鹹水フルボ酸区が有意に増加していた．IAA濃度は，最大葉では対照区と比べて，鹹水フルボ酸区では7.3倍の高い濃度であった．根において，tZ濃度は対照区では，基部ほど高い傾向であったが，鹹水フルボ酸区では先端部ほど高い傾向であった．iP濃度は根において，全体的に鹹水フルボ酸区の方が上昇していた．GA1濃度は全体的に，葉では鹹水フルボ酸区の方が低下していたが，根では鹹水フルボ酸区の方が上昇していた．GA4濃度は，葉と根の両方で，全体的に鹹水フルボ酸区の方が低下していた．根では全体的にGA1濃度...

The aquifer of “mineral” water, historically known for its curative properties, is an identifying characteristic the Anticolana valley. This area hosted a coppice chestnut forest long time. Under forest, there important aquifer, renowned and widely recognized preventing renal stone formation or facilitating their expulsion. mineral water pre- vents calcium oxalate phosphate crystals in kidney p...

The complexation reaction between metal cations o f different valence states (Al, Bi(III), Cr(III), Fe(III); Ca, Co(II), Cu(II), Mn(II), Ni(II), Pb(II), Zn; Na) and fulvic acids is investi­ gated by the streaming current detection technique. It can be shown that the metal complexa­ tion capacity does not only depend on the nature o f the cation but also on the origin o f fulvic acids, which wer...

Afforestation plays an important role in soil protection and ecological restoration. The objective of this study is to understand the effect of afforestation on soil carbon and soil microbial communities in the Loess Plateau of China. We measured two chemically-separated carbon fractions (i.e., humic acid, HA, and fulvic acid, FA) and soil microbial communities within shrublands (18-year-old Ca...