Characterization of Fulvic Acid Beverages by Mineral Profile and Antioxidant Capacity

Swat, Monika; Rybicka, Iga; Gliszczyńska‐Świgło, Anna

doi:10.3390/foods8120605

Cited by 13 publications

(11 citation statements)

References 32 publications

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“…Potassium ferricyanide was used to determine the redox capacity of HC [ 32 ]. Determination of the antioxidant activity of HC samples was defined as Trolox equivalent antioxidant capacity (TEAC) using a known method [ 33 ]. The reduced forms of HC were obtained using a 0.5% NaBH 4 solution.…”

Section: Methodsmentioning

confidence: 99%

Suppression of Methane Generation during Methanogenesis by Chemically Modified Humic Compounds

et al. 2020

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The introduction of various concentrations of chemically modified humic compounds (HC) with different redox characteristics into the media with free and immobilized anaerobic consortia accumulating landfill gases was studied as approach to their functioning management. For this purpose, quinone (hydroquinone, naphthoquinone or methylhydroquinone) derivatives of HC were synthesized, which made it possible to vary the redox and antioxidant properties of HC as terminal electron acceptors in methanogenic systems. The highest acceptor properties were obtained with potassium humate modified by naphthoquinone. To control possible negative effect of HC on the cells of natural methanogenic consortia, different bioluminescent analytical methods were used. The addition of HC derivatives, enriched with quinonones, to nutrient media at concentrations above 1 g/L decreased the energetic status of cells and the efficiency of the methanogenesis. For the first time, the significant decrease in accumulation of biogas was reached as effect of synthetic HC derivatives, whereas both notable change of biogas composition towards increase in the CO2 content and decrease in CH4 were revealed. Thus, modification with quinones makes it possible to obtain low-potential HC derivatives with strongly pronounced acceptor properties, promising for inhibition of biogas synthesis by methanogenic communities.

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Section: Methodsmentioning

confidence: 99%

Suppression of Methane Generation during Methanogenesis by Chemically Modified Humic Compounds

et al. 2020

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“…In fact, in 2004, the Ministry of Health, Labour, and Welfare of Japan has designated FA as a food (Motojima et al, 2009). A study carried out by Swat et al (2019) disclosed the quality of FAbased food products bought from online stores in 2015 and 2018 in Poland. The concentrated FA used in the products was originated from the Great Salt Lake in Utah (North America) and England, whereas FA in ready-to-drink beverages was obtained mainly from an aquatic source and/or soils of North America and South Africa.…”

Section: Other Potential Uses Of Fa In Disease and Health Caresmentioning

confidence: 99%

Fulvic acid – a small but powerful natural substance

Goenadi¹

2021

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Humic substances are defined as the result of the decomposition of any organic matter, and they consist mainly of humin, humic, and fulvic acids. Compared to humin, humic acids and fulvic acid (FA) are the most explored compounds. However, FAs are less studied than humic acids because of the usually small residual quantities. Considering that its potential for bioactivity is stronger than that of humic acids, the current review was performed to evaluate the effectiveness of FA application for crops and soils and its potential as an immuno-modulator for humans. The wide application of FA is challenged by two main factors affecting the quality and the effectiveness, i.e., the type of raw material and extraction method. Lignite, low-energy coal, is the most common material for FA production besides bog, peat, and compost. Fulvic acid extraction is done through several methods, i.e., hydrogen peroxide (H2O2), alkaline (NaOH/KOH), and/or water. The latest modified method shows that the combination of H2O2 with microwave power can recover a considerable amount of FA. However, it is still difficult to apply this method for industrial scale. Due to highly specified characteristics, FA showed a great potential to improve crop performances and soil health, making it strategic for supporting sustainable agriculture in the future through biotic and abiotic stress alleviations and sustainable yield achievement, including various plantation crops and biotechnological approach. For medicinal purposes, some studies have shown highly promising results, especially as an immuno-modulator and in combating neurodegenerative disorders as well as for cancer therapy and health food fortification, which might be in line with the new paradigm so-called One Health approach. The future market of FA is also estimated to grow in a very attractive economic value. However, as data are still limited, the wide range of potential use should encourage concerted and wide research and product development efforts to achieve sustainable agriculture and human health.

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“…Still, the increased interest in HS in biomedicine has led to many commercially available vitamin-mineral complexes, dietary supplements, food products, beverages, and cosmetics [7,9,13]. In these preparations, HS enter the human body directly through the digestive system or direct skin contact.…”

Section: Introductionmentioning

confidence: 99%

“…Among HS decomposition methods and metal separation methods, the approaches most often involve mineral acids (HNO 3 , HCl, HF, HClO 4 ) or their mixtures, hydrogen peroxide, organic solvents, or metal binding to EDTA. The HS analysis may be carried out without sample preparation to directly analyze drinks containing fulvic acids [13], however most studies require sample preparation. Still, approaches to sample preparation are not compared.…”

Section: Introductionmentioning

confidence: 99%

Comparative Study of Sample-Preparation Techniques for Quantitative Analysis of the Mineral Composition of Humic Substances by Inductively Coupled Plasma Atomic Emission Spectroscopy

Karpukhina¹,

Vlasova²,

Volkov³

et al. 2021

Agronomy

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Five sample-preparation techniques were compared to quantify 31 elements in coal humic substances (HS) by ICP–AES from the viewpoints of complete isolation and speciation of elements. They include, for bulk composition, preparation of an aqueous colloidal HS solution followed by direct injection of the sample without decomposition and ashing followed by metaborate fusion; for element speciation, preparation of an aqueous colloidal HS solution followed by centrifugation and direct analysis without decomposition for water-soluble species; treatment with boiling nitric acid; and microwave-assisted treatment with nitric acid at 250 °C for acid-isolated species. The results of analysis significantly depend on the selected method of sample preparation due to specific features of HS, the simultaneous presence of many inorganic components in wide concentration ranges, and a significant fraction of the organic matrix; therefore, the total mineral composition of HS, both macro- and microcomponents, requires a combination of decomposition methods.

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Characterization of Fulvic Acid Beverages by Mineral Profile and Antioxidant Capacity

Cited by 13 publications

References 32 publications

Suppression of Methane Generation during Methanogenesis by Chemically Modified Humic Compounds

Suppression of Methane Generation during Methanogenesis by Chemically Modified Humic Compounds

Fulvic acid – a small but powerful natural substance

Comparative Study of Sample-Preparation Techniques for Quantitative Analysis of the Mineral Composition of Humic Substances by Inductively Coupled Plasma Atomic Emission Spectroscopy

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