Publications by authors named "Andriele Mendonça Barbosa"

2 Publications

  • Page 1 of 1

Beer Molecules and Its Sensory and Biological Properties: A Review.

Molecules 2019 Apr 20;24(8). Epub 2019 Apr 20.

Biomaterials Laboratory (LBMat), Institute of Technology and Research (ITP), Av. Murilo Dantas, 300, Aracaju 49032-490, Sergipe, Brazil.

The production and consumption of beer plays a significant role in the social, political, and economic activities of many societies. During brewing fermentation step, many volatile and phenolic compounds are produced. They bring several organoleptic characteristics to beer and also provide an identity for regional producers. In this review, the beer compounds synthesis, and their role in the chemical and sensory properties of craft beers, and potential health benefits are described. This review also describes the importance of fermentation for the brewing process, since alcohol and many volatile esters are produced and metabolized in this step, thus requiring strict control. Phenolic compounds are also present in beer and are important for human health since it was proved that many of them have antitumor and antioxidant activities, which provides valuable data for moderate dietary beer inclusion studies.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
April 2019

Silver Nanocomposite Biosynthesis: Antibacterial Activity against Multidrug-Resistant Strains of Pseudomonas aeruginosa and Acinetobacter baumannii.

Molecules 2016 Sep 20;21(9). Epub 2016 Sep 20.

Institute of Technology and Research, Tiradentes University, Av. Murilo Dantas 300, 49032-971 Aracaju, SE, Brazil.

Bacterial resistance is an emerging public health issue that is disseminated worldwide. Silver nanocomposite can be an alternative strategy to avoid Gram-positive and Gram-negative bacteria growth, including multidrug-resistant strains. In the present study a silver nanocomposite was synthesized, using a new green chemistry process, by the addition of silver nitrate (1.10 mol·L) into a fermentative medium of spp. to produce a xanthan gum polymer. Transmission electron microscopy (TEM) was used to evaluate the shape and size of the silver nanoparticles obtained. The silver ions in the nanocomposite were quantified by flame atomic absorption spectrometry (FAAS). The antibacterial activity of the nanomaterial against (ATCC 22652), (ATCC 29282), (ATCC 27853) and (ATCC 25923) was carried out using 500 mg of silver nanocomposite. and multidrug-resistant strains, isolated from hospitalized patients were also included in the study. The biosynthesized silver nanocomposite showed spherical nanoparticles with sizes smaller than 10 nm; 1 g of nanocomposite contained 49.24 µg of silver. Multidrug-resistant strains of and , and the other Gram-positive and Gram-negative bacteria tested, were sensitive to the silver nanocomposite (10-12.9 mm of inhibition zone). The biosynthesized silver nanocomposite seems to be a promising antibacterial agent for different applications, namely biomedical devices or topical wound coatings.
View Article and Find Full Text PDF

Download full-text PDF

Source Listing
September 2016