Biopolymer from <i>Adenanthera pavonina</i> L. Seeds: Characterization, Photostability, Antioxidant Activity, and Biotoxicity Evaluation

Melo, Roberta Cardoso; Geronço, Maurycyo Silva; Sousa, Rayran Walter Ramos de; Ramos, Lara Polyana Silva; Araújo, Francisca Pereira de; Ribeiro, Alessandra Braga; Ferreira, Paulo Michel Pinheiro; Osajima, Josy Anteveli; Costa, Marcília Pinheiro da

doi:10.1155/2018/1385830

Cited by 12 publications

(4 citation statements)

References 21 publications

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“…In a recent study, Melo et al (2018) proved the absence of toxicity of the seed biopolymer by the A. salina test. Therefore, it can be concluded that the A. pavonina derivatives were more often non-toxic.…”

Section: Toxicity Studiesmentioning

confidence: 97%

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Advances in the research of Adenanthera pavonina: From traditional use to intellectual property

GeronÃ§o¹,

Melo²,

Barros³

et al. 2020

J. Med. Plants Res.

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Adenanthera pavonina, an Asian native leguminous, is a well known highly used plant in traditional medicine. Such broad herbal medicine applications motivated several researchers to study its chemical composition, mainly of its leaves, seeds, and barks, besides the pharmacological effects aiming to demonstrate scientific evidence of its empirical uses. Most studies have been conducted with plant derivatives, and more recent studies have focused on isolated compounds. The phytochemical screening revealed various secondary metabolites with diverse biological effects, including flavonoids, alkaloids, saponins, tannins, steroids, triterpenoids, polyphenols, anthraquinones, coumarins, glycosides and polysaccharides. Experimental studies of this plant have shown numerous pharmacological activities such as antidiarrheal, anti-inflammatory, antinociceptive, antioxidant, antimicrobial, anticancer, and others. Advances in the studies of phytochemistry and biological activity on this plant species over the last years led to the increasing interest of researchers in the protection of inventions focusing on its cosmetic, pharmaceutical and food applicability. This review summarizes the tremendous therapeutic and technological potential of A. pavonina that should be explored, opening new perspectives for future researches and the development of new products.

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Section: Toxicity Studiesmentioning

confidence: 97%

“…62 ± 1.14 mg/g extract) and the highest DPPH scavenging activity with an IC 50 of 249.92 ± 3.35 μg/mL. Galactomannan from A. pavonina has also been shown to have a significant antioxidant effect by the reduction of DPPH radicals (Melo et al, 2018).…”

Section: Antioxidant Activitymentioning

confidence: 99%

Advances in the research of Adenanthera pavonina: From traditional use to intellectual property

GeronÃ§o¹,

Melo²,

Barros³

et al. 2020

J. Med. Plants Res.

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“…This analysis was performed according to the methods of Melo et al [133]. Initially, a 0.25% EPSwk (w/v) solution was prepared and placed in a borosilicate glass reactor to be irradiated with a 125 W Philips Mercury lamp without a bulb, used as a UV radiation source, under agitation (700 rpm), and temperature-controlled (25 ± 5 • C).…”

Section: Photostability Studymentioning

confidence: 99%

Biopolymer from Water Kefir as a Potential Clean-Label Ingredient for Health Applications: Evaluation of New Properties

et al. 2022

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The present work aimed to characterize the exopolysaccharide obtained from water kefir grains (EPSwk), a symbiotic association of probiotic microorganisms. New findings of the technological, mechanical, and biological properties of the sample were studied. The EPSwk polymer presented an Mw of 6.35 × 105 Da. The biopolymer also showed microcrystalline structure and characteristic thermal stability with maximum thermal degradation at 250 °C. The analysis of the monosaccharides of the EPSwk by gas chromatography demonstrated that the material is composed of glucose units (98 mol%). Additionally, EPSwk exhibited excellent emulsifying properties, film-forming ability, a low photodegradation rate (3.8%), and good mucoadhesive properties (adhesion Fmax of 1.065 N). EPSwk presented cytocompatibility and antibacterial activity against Escherichia coli and Staphylococcus aureus. The results of this study expand the potential application of the exopolysaccharide from water kefir as a potential clean-label raw material for pharmaceutical, biomedical, and cosmetic applications.

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“…Various model organisms are used in ecotoxicity and phytotoxicity tests, among them Artemia salina (microcustracean of the Artemiidae family), Lactuca sativa (lettuce), Capsicum annuum (chili pepper), Raphidocelis subcapitata (alga of the Selenastraceae family) and Caenorhabditis elegans (free-living nematode of the Rhabditidae family). [35][36][37][38][39][40] The main objective of the study presented here was the production of PBS and urea microspheres and the evaluation of both the controlled release of urea and the ecotoxicity of these materials in biological assays, targeting their application in environments contaminated with oil derivatives and enabling the biostimulation of native biota for bioremediation of a site.…”

Section: Introductionmentioning

confidence: 99%

Production and toxicological evaluation of poly(butylene succinate)–urea microspheres targeting bioremediation

Bedor

Rondelli

Filho

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND: As population and fuel demand increase, many events of oil spills in the environment have been recorded. In order to restore these environments, several techniques have been proposed in the literature, especially in the field of bioremediation, with their main advantage being a low impact on the environment. In this work, poly(butylene succinate) microspheres containing urea were produced, representing a source of controlled release of nitrogen to the environment, promoting the biostimulation of the native microbiota of contaminated sites. Experiments were conducted based on the biostimulation of Pseudomonas aeruginosa and assessed the growth of the culture, the controlled release of urea, the substrate consumption and the toxicity of the microspheres using Artemia salina. RESULTS:The results showed that the double-emulsion methodology for urea encapsulation was efficient, with controlled release occurring up to 72 h. The urea-containing microspheres promoted microbial growth with higher protein synthesis (198.66 ∼g mL −1 ) in 72 h, from the consumption of glucose and urea, within the release limitations. The ecotoxicity of the urea-containing microspheres was tested with A. salina and the results showed a CL50 of 0.027 mg (10 mL) −1 , not recommending its use in the aquatic environment for this organism. CONCLUSIONS:The assays revealed that poly(butylene succinate) microspheres, both with urea and without this active ingredient, may not present toxicity to microorganisms such as P. aeruginosa and be toxic to more complex organisms such as A. salina.

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Biopolymer from Adenanthera pavonina L. Seeds: Characterization, Photostability, Antioxidant Activity, and Biotoxicity Evaluation

Cited by 12 publications

References 21 publications

Advances in the research of Adenanthera pavonina: From traditional use to intellectual property

Advances in the research of Adenanthera pavonina: From traditional use to intellectual property

Biopolymer from Water Kefir as a Potential Clean-Label Ingredient for Health Applications: Evaluation of New Properties

Production and toxicological evaluation of poly(butylene succinate)–urea microspheres targeting bioremediation

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