Open AccessChemical characterization and bioprospecting of cashew tree polyssacharide of Brazilian Cerrado (Anacardium othonianum Rizz.), Anarcadiaceae
Author(s) -
Thâmara Machado e Silva,
Eli Regina Barboza de Souza,
Joelma Abadia Marciano de Paula,
Samantha Salomão Caramori,
Leonardo Luiz Borges
Publication year - 2017
Publication title -
fronteiras : journal of social, technological and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.159
H-Index - 5
ISSN - 2238-8869
DOI - 10.21664/2238-8869.2017v6i3.p230-246
Subject(s) - thermogravimetric analysis , anacardium , chemistry , polysaccharide , polymer , biopolymer , chemical structure , extraction (chemistry) , chemical engineering , infrared spectroscopy , thermal stability , organic chemistry , biology , horticulture , engineering
The use of biodegradable polymers arouses great biotechnological interest because their chemical composition favors the interaction with biological systems, allowing applications in health and environment besides are easily decomposed. This work presents the first effort of extraction, characterization and proposition of the polysaccharide of Anacardium othonianum Rizz. (PEJU-GO) as material with potential for biotechnological applications. Based on scanning electron microscopy, infrared spectra and thermogravimetric analysis, the polysaccharide of A. othonianum Rizz. is a microporous structure, with numerous intramolecular interactions due to the presence of polar groups that give the material great thermal stability. In addition to the thin layer chromatographic data, the analysis of the chemical composition demonstrates the existence of a galactomannan type structure, with low protein content. The presence of chalcones and flavonoid compounds were also detected. The polysaccharide was able to immobilize Horseradish peroxidase with 75% efficiency over an extended pH range and presented storage and operational stabilities.