Results 161 to 170 of about 944,278 (220)

Biodiverse Compounds from Angiosperms and Gymnosperms: A Chemical, Nutritional, and Microbiological Approach. [PDF]

Microorganisms
Jesus AP, Souza UJB, Mol DJS, Rezende SF, Bessa LA, Vitorino LC.   +5 more
europepmc   +1 more source

Terrestrial Plant- and Algal-Derived Biostimulants as Modulators of ROS and Hormone Networks in Crop Abiotic Stress Resilience. [PDF]

Plants (Basel)
Minkov P, Gechev TS, Kanojia A.
europepmc   +1 more source

DETERMINATION OF HUMIC ACID AND FULVIC ACID IN SHILAJATU

International Journal of Biology, Pharmacy and Allied Sciences
openaire   +1 more source

Effects of pH and fulvic acids concentration on the stability of fulvic acids – cerium (IV) oxide nanoparticle complexes

Chemosphere, 2016
The behavior of cerium (IV) oxide nanoparticles has been first investigated at different pH conditions. The point of zero charge was determined as well as the stability domains using dynamic light scattering, nanoparticle tracking analysis and scanning electron microscopy.
Oriekhova, Olena, Stoll, Serge
openaire   +5 more sources

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Total synthesis of fulvic acid

Journal of the Chemical Society, Chemical Communications, 1984
Synthesis of fulvic acid (1a) was accomplished by a route involving selective ozonization of 9-propenylpyranobenzopyran (1c), obtained by a regioselective cyclization of the 2-methylsulphinylmethyl 1,3-dione(3c).
Masashige Yamauchi, Sadamu Katayama, Toshiharu Todoroki, Toshio Watanabe   +3 more
openaire   +1 more source

Contribution of fulvic acid to the photochemical formation of Fe(II) in acidic Suwannee River fulvic acid solutions

Chemosphere, 2010
We investigated the contribution of fulvic acid to the photoformation of Fe(II) using aqueous Suwannee River fulvic acid (SRFA) as a surrogate for the humic-like substances (HULIS) found in atmospheric condensed phases. The effects of pH (3.2, 4.1, and 5.0) and wavelength (313, 334, 366, and 405nm) on Fe(II) photoformation were studied using ...
Takemitsu, Arakaki, Kiwamu, Saito, Kouichirou, Okada, Hitomi, Nakajima, Yuya, Hitomi   +4 more
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Biological decomposition of fulvic acid preparations

Folia Microbiologica, 1976
Decomposition of preparations of various fractions of fulvic acids in pure cultures of bacteria and in the soil was investigated. In the soils enriched with fulvic acids the amount of bacteria increased, oxygen consumption and formation of carbon dioxide followed a typical sigmoid curve.
F, Kunc, R A, Lokhmacheva, J, Macura
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Polarity based fractionation of fulvic acids

Chemosphere, 2009
Fulvic acids from the soil of Peking University (PF) and a Nordic river (NF) were separated into well defined sub-fractions using sequential elution techniques based on eluent polarity. The chemical properties of the fractions including: PF1 and NF1 (eluted by 0.01 M HCl), PF2 and NF2 (eluted by 0.01 M HCl+20% methanol), PF3 and NF3 (eluted by 0.01 M ...
Aimin, Li, Jundong, Hu, Wenhui, Li, Wei, Zhang, Xuejun, Wang   +4 more
openaire   +2 more sources