Departamento de Bioquímica/Laboratório de Imunopatologia Keizo Asami-LIKA, Universidade Federal de Pernambuco, Avenue Prof. Moraes Rego s/n, Recife CEP: 50.670-420, PE, Brazil. Electronic address:
Published: April 2014
AI Article Synopsis
Article Abstract
Galactomannan extracted from seeds of Cassia grandis with 0.1M NaCl, followed by ethanol precipitation, presented a yield of 36 ± 8%. The polysaccharide has a constant mannose/galactose ratio (2.44:1). Methylation analysis, one and two dimensional NMR spectroscopy confirmed that the polysaccharide has a central core composed of 4-linked β-mannose units, with branches of galactose, linked to the carbohydrate core through α(1-6) linkage. The amorphous nature of the galactomannan was confirmed by X-ray diffraction. Rheological characterization exhibited Newtonian plateaus followed by shear-thinning zones characteristic of polymer solutions up to 1.5% (w/v) and above this value the system exhibited yield stress associated with a weak gel. Adjusting stress-strain curves confirmed a 1.6% (w/v) as the galactomannan concentration value for the sol-gel transition. These results indicate that the galactomannan extracted from C. grandis seeds presents rheological characteristics suitable for applications in pharmaceutical, biomedical, cosmetic and food industries.
Programa de Pós-Graduação em Saúde e Desenvolvimento Socioambiental - Universidade de Pernambuco, Garanhuns, PE, Brasil; Laboratório Multiusuário de Biotecnologia do Sertão Pernambucano (BIOSPE) - Universidade de Pernambuco, Arcoverde, PE, Brasil.
This study aimed to investigate the antitumor activity of galactomannan extracted from Cassia grandis seeds (GCg) against colorectal cancer cells using both experimental and computational approaches. Galactomannan was extracted from C. grandis seeds and prepared into solutions with varying concentrations.
Department of Clinical Veterinary Medicine, College of Veterinary Medicine, Jilin University, Changchun 130062, People's Republic of China. Electronic address:
Obesity is a serious public health challenge worldwide, the present study is aimed to investigate the structural characteristic and anti-obesity effect of a water-soluble galactomannan (PEC) extracted from Eurotium cristatum (E. cristatum). Detailed analysis of the PEC structure showed a weight-average molecular weight of 32,305 Da and a composition of mainly mannose, galactose and small amounts of glucose.
There's a growing need for biodegradable and edible biopolymer food packaging to reduce environmental harm from plastic waste.
Locust bean gum (LBG), derived from carob seeds, is popular for creating these sustainable packaging films due to its strong film-forming abilities.
LBG is effective when combined with other materials or additives, enhancing food preservation by improving shelf life and monitoring freshness in fruits and meats.
Postgraduate Program in Materials Science and Engineering - PPGCM, Federal University of Piauí, Teresina, PI, Brazil; Research Center on Biodiversity and Biotechnology, Biotec, Parnaíba Delta Federal University, Parnaíba, PI, Brazil. Electronic address:
The continuous increase in bacterial resistance requires the study and development of new biocompatible antibacterial materials. Galactomannan gum was extracted from endosperms of Dimorphandra gardneriana seeds, modified through quaternization reactions (with NaOH/CHPTAC), and evaluated for antimicrobial activity. Four quaternized derivatives were obtained (QG1-QG4).
* A study investigated a polysaccharide from Delonix regia (NDr) for its antiviral potential against HSV-1, showing it has a high selectivity index and significantly inhibits viral replication.
* NDr demonstrated effective prophylactic and virucidal effects, particularly when applied before or during the early stages of infection, indicating it could be a promising alternative for controlling HSV infections.
