Data/hora: 04/06/2024 21:35:59

Biblioteca(s): | Embrapa Solos.
Data corrente: | 04/12/2014
Data da última atualização: | 08/11/2021
Autoria: | MARTINEZ-BALMORI, D.; SPACCINI, R.; AGUIAR, N. O.; NOVOTNY, E. H.; OLIVARES, F. L.; CANELLAS, L. P.
Afiliação: | DARIELLYS MARTINEZ BALMORI, UNIVERSIDAD AGRARIA DE LA HABANA; RICCARDO SPACCINI, UNIVERSITÀ DI NAPOLI FEDERICO II; NATÁLIA OLIVEIRA AGUIAR, UENF; ETELVINO HENRIQUE NOVOTNY, CNPS; FÁBIO LOPES OLIVARES, UENF; LUCIANO PASQUALOTO CANELLAS, UENF.
Título: | Molecular characteristics of humic acids isolated from vermicomposts and their relationship to bioactivity.
Ano de publicação: | 2014
Fonte/Imprenta: | Journal of Agricultural and Food Chemistry, v. 62, n. 47, p. 11412-11419, 2014.
DOI: | https://doi.org/10.1021/jf504629c
Idioma: | Inglês
Conteúdo: | Vermitechnology is an effective composting method, which transforms biomass into nutrient-rich organic fertilizer. Mature vermicompost is a renewable organic product containing humic substances with high biological activity. The aim of this study was to assess the chemical characteristics and the bioactivity of humic acids isolated from different vermicomposts produced with either cattle manure, sugar cane bagasse, sunflower cake from seed oil extraction, or filter cake from a sugar cane factory. More than 200 different molecules were found, and it was possible to identify chemical markers on humic acids according to the nature of the organic source. The large hydrophobic character of humic extracts and the preservation of altered lignin derivatives confer to humic acids the ability to induce lateral root emergence in maize seedlings. Humic acid-like substances extracted from plant biomass residues represent an additional valuable product of vermicomposting that can be used as a plant growth promoter.
Palavras-Chave: | Ácido húmico; Pirólise; Ressonância magnética nuclear; Vermicomposto.
Thesaurus Nal: | Pyrolysis; Vermicomposts.
Categoria do assunto: | P Recursos Naturais, Ciências Ambientais e da Terra
Registro original: | Embrapa Solos (CNPS)
Exemplares: | CNPS - (18707-1) - UPC - AP - DD -  -  - 2014.00961 - DIS