TY - JOUR
T1 - Biopolymer from adenanthera pavonina L. seeds
T2 - characterization, photostability, antioxidant activity, and biotoxicity evaluation
AU - Melo, Roberta Cardoso
AU - Geronço, Maurycyo Silva
AU - Sousa, Rayran Walter Ramos
AU - Ramos, Lara Polyana Silva
AU - Araújo, Francisca Pereira
AU - Ribeiro, Alessandra Braga
AU - Ferreira, Paulo Michel Pinheiro
AU - Osajima, Josy Anteveli
AU - Costa, Marcília Pinheiro
N1 - Publisher Copyright:
© 2018 Roberta Cardoso Melo et al.
Copyright:
Copyright 2018 Elsevier B.V., All rights reserved.
PY - 2018
Y1 - 2018
N2 - Plant polysaccharides have been increasingly employed in the pharmaceutical, industrial, and food environments due to their versatile functional properties. In the present investigation, a heteropolysaccharide galactomannan (GAP) was extracted from Adenanthera pavonina L. seeds and characterized by physicochemical analyses to determine its thermal properties, photostability, antioxidant activity, and acute toxicity. GAP was characterized by FTIR, DSC, and TG. The photostability of GAP submitted to artificial UV irradiation was analyzed. Antioxidant activity was evaluated by the DPPH (2,2-diphenyl-1-1-picrylhydrazyl) free radical-scavenging method, while a bioassay method was carried out to study acute toxicity in Artemia salina L. Physical-chemical and functional characteristics of GAP support its potential role in the food and pharmaceutical industries. GAP was photostable under UV irradiation. In vitro GAP antioxidant evaluation showed that it bears free radical-scavenging activity for DPPH radicals. The median lethal concentration (LC50) of GAP was 239.4 mgmL-1, indicating that this biopolymer is nontoxic. Such results indicate that this biopolymer presents characteristics of neutrality, photostability, and nontoxicity that are commercially attractive.
AB - Plant polysaccharides have been increasingly employed in the pharmaceutical, industrial, and food environments due to their versatile functional properties. In the present investigation, a heteropolysaccharide galactomannan (GAP) was extracted from Adenanthera pavonina L. seeds and characterized by physicochemical analyses to determine its thermal properties, photostability, antioxidant activity, and acute toxicity. GAP was characterized by FTIR, DSC, and TG. The photostability of GAP submitted to artificial UV irradiation was analyzed. Antioxidant activity was evaluated by the DPPH (2,2-diphenyl-1-1-picrylhydrazyl) free radical-scavenging method, while a bioassay method was carried out to study acute toxicity in Artemia salina L. Physical-chemical and functional characteristics of GAP support its potential role in the food and pharmaceutical industries. GAP was photostable under UV irradiation. In vitro GAP antioxidant evaluation showed that it bears free radical-scavenging activity for DPPH radicals. The median lethal concentration (LC50) of GAP was 239.4 mgmL-1, indicating that this biopolymer is nontoxic. Such results indicate that this biopolymer presents characteristics of neutrality, photostability, and nontoxicity that are commercially attractive.
UR - http://www.scopus.com/inward/record.url?scp=85058960807&partnerID=8YFLogxK
U2 - 10.1155/2018/1385830
DO - 10.1155/2018/1385830
M3 - Article
AN - SCOPUS:85058960807
SN - 1687-9422
VL - 2018
JO - International Journal of Polymer Science
JF - International Journal of Polymer Science
M1 - 1385830
ER -