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Molecular characterization of the humic substances from "Terra Preta de Indio" soils and hydrochar from sugarcane wastes" by Humeomics

Grant number: 17/17991-0
Support Opportunities:Scholarships abroad - Research Internship - Master's degree
Effective date (Start): May 28, 2018
Effective date (End): September 27, 2018
Field of knowledge:Physical Sciences and Mathematics - Chemistry - Analytical Chemistry
Principal Investigator:Márcia Cristina Bisinoti
Grantee:Lucas Raimundo Bento
Supervisor: Riccardo Spaccini
Host Institution: Instituto de Biociências, Letras e Ciências Exatas (IBILCE). Universidade Estadual Paulista (UNESP). Campus de São José do Rio Preto. São José do Rio Preto , SP, Brazil
Research place: Università degli Studi di Napoli Frederico II (UNINA), Italy  
Associated to the scholarship:17/05575-2 - Structural similarity of the humic substances from hydrochar obtained from vinasse and sugarcane bagasse with the Black Earth (TPI), BP.MS


The "Terras Pretas de índio" (TPI) also called Dark Earth, are soils know wordwide for your fertile proprieties. Several research has tried to develop materials to mimic the TPI from biomass sources. Pirolitic process is the most utilized to produced biochar, but one disadvantage in this process is the Polycyclic Aromatic Hydrocarbons (PAH) compounds formation. The Hydrothermal Carbonization (HTC) process not require the previous biomass drying and produces rich carbon material called hydrochar that seems have similar structural and morphological characteristics to TPI. For this the humic substances characterization is important approach to assess the similarity between TPI and hydrochar. The humic substances (HS) are complex misture of heterogeneous compounds, originating from the decomposition of animal and plant litter in diferente stages of decomposition. The research group, CERMANU (NMR Research Centre for Agriculture, Food, Environment and Innovative Materials) in the University Federico II, has proposed advanced methods to study the humic structures, reducing their complexity by the sequential humeonic fractionation that consists of the breakdown of inter-interaction and the extracts can be analyzed by combinations of analytical techniques such as thermochemolyses, GC-MS and NMR, and the results allows the unveiling the humic composition of the materials. The aim of this study is the structural characterization of humic substances of TPI soils and hydrochars produced under different conditions, to evaluate the similarity of hydrochar with TPI by sequential humeonic fractionation with the supervision the professor Riccardo Spaccini.

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Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
BENTO, LUCAS RAIMUNDO; MELO, CAMILA ALMEIDA; FERREIRA, ODAIR PASTOR; MOREIRA, ALTAIR BENEDITO; MOUNIER, STEPHANE; PICCOLO, ALESSANDRO; SPACCINI, RICCARDO; BISINOTI, MARCIA CRISTINA. Humic extracts of hydrochar and Amazonian Dark Earth: Molecular characteristics and effects on maize seed germination. Science of The Total Environment, v. 708, . (15/22954-1, 18/15733-7, 17/05575-2, 17/17991-0)
BENTO, LUCAS RAIMUNDO; SPACCINI, RICCARDO; CANGEMI, SILVANA; MAZZEI, PIERLUIGI; DE FREITAS, BIANCA BORGE; OLIVEIRA DE SOUZA, ANDRESSA EVA; MOREIRA, ALTAIR BENEDITO; FERREIRA, ODAIR PASTOR; PICCOLO, ALESSANDRO; BISINOTI, MARCIA CRISTINA. Hydrochar obtained with by-products from the sugarcane industry: Molecular features and effects of extracts on maize seed germination. Journal of Environmental Management, v. 281, . (18/15733-7, 17/17991-0, 17/05575-2)

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