Polysaccharide Based Polymers Produced by Scabby Cankered Cactus Pear (Opuntia ficus-indica L.) Infected by Neofusicoccum batangarum: Composition, Structure, and Chemico-Physical Properties

Abstract

Neofusiccocum batangarum is the causal agent of scabby canker of cactus pear (Opuntia ficus-indica L.). The symptoms of this disease are characterized by crusty, perennial cankers, with a leathery, brown halo. Characteristically, a viscous polysaccharide exudate, caking on contact with air, leaks from cankers and forms strips or cerebriform masses on the surface of cactus pear cladodes. When this polysaccharide mass was partial purified, surprisingly, generated a gel. The TLC analysis and the HPLC profile of methyl 2-(polyhydroxyalkyl)-3-(o-tolylthiocarbomoyl)-thiazolidine-4R-carboxylates obtained from the mixture of monosaccharides produced by acid hydrolysis of the three EPSs examined in this research work [the polysaccharide component of the exudate (EPSC) and the EPSs extracted from asymptomatic (EPSH) and symptomatic (EPSD) cladodes] showed the presence of d-galactose, l-rhamnose, and d-glucose in a 1:1:0.5 ratio in EPSC while d-galactose, l-rhamnose, d-glucose, and d-xylose at the same ratio were observed in EPSH and EPSD. The presence of uronic acid residues in EPSC was also showed by solid state NMR and IR investigation. Furthermore, this manuscript reports the chemical-physical characterization of the gel produced by the infected cactus pear.

Edible Polymers and Secondary Bioactive Compounds for Food Packaging Applications: Antimicrobial, Mechanical, and Gas Barrier Properties

“…Plants, fungi, and microorganisms are the primary sources of the secondary components. Given their peculiar structure, these compounds show various and unique biological properties that result in their broad range of applications in the fields of agriculture [23], medicine [24], and packaging [25,26]. Concerning active packaging applications, these products can represent a valid approach to improving packaging functionality through food protection and preservation.…”

Acid Hydrolysis of Pectin and Mucilage from Cactus (Opuntia ficus) for Identification and Quantification of Monosaccharides

“…These techniques provide us with a much faster analysis method, with lower consumption of chemical reagents, and without the need for expensive equipment. It is for all of the above reasons that we consider the results of this research to be of importance, since they result in a new methodology that is easy to use and cost-effective [64,65].…”

Advances on polysaccharides from cactus: analysis and review based on bibliometrics

“…Cactus pear; Chemical characterization; Color; Betalain; Quality (Mattagajasingh et al, 2006;Moßhammer et al, 2006;Luna-Paez et al, 2007;Ramírez-Truque et al, 2011;Di Cagno et al, 2016;Giglio et al, 2020) 2 30 0.879 Extraction; Acid; Optimization; Aroma; Rheological property; Cellulose (Ninio et al, 2003 a;Cárdenas et al, 2008;Felkai-Haddache et al, 2016;López-Mercado et al, 2018;Camelo Caballero et al, 2019;Silva et al, 2019;Nagarajan et al, 2020;Santagata et al, 2022) 3 25 0.945 Fruit; Behavior (Fox et al, 2012;Nharingo et al, 2015;Madera-Santana et al, 2018;Asnam et al, 2022) 4 24 0.872 Dietary fiber; Chemical composition; Bioactive compound; Functional property (Armenta et al, 2009;Nuñez-López et al, 2013;de Campo et al, 2018;El-Shahat et al, 2019) 5 24 0.979 Antioxidant activity; Stroke; Polyphenol; Brain slice; Food; Biological activity (Huang et al, 2008 b;a;Kim et al, 2013Kim et al, , 2014Xie et al, 2016) 6 23 0.896 Ficus indica; Mucilage; C13 NMR; Water relation (Nobel et al, 1995;Mondragon-Jacobo et al, 2000;Vignon et al, 2004;Ramírez-Truque et al, 2011;Lira-Ortiz et al, 2014;Montoya-Arroyo et al, 2014;Rivera-Corona et al, 2014;Manhivi et al, 2018;Raimundo et al, 2018;…”