Publications by authors named "Mario Antonio Alves DA Cunha"

Microencapsulation has emerged as a promising strategy to enhance the stability and protection of bioactive compounds. In this work, roasted mate tea was microencapsulated using 15 % maltodextrin and lasiodiplodan (0.5-1.

View Article and Find Full Text PDF

Phytochemical studies have shown extracts obtained from the aerial parts of (Less.) DC has antioxidant and antimicrobial activities and the potential to treat some diseases. This study investigated the phenolic compounds, antioxidant and antimicrobial activity, and phytochemical potential of leaf extract obtained by decoction on ATCC standard bacterial strains and 23 swine clinical isolates.

View Article and Find Full Text PDF

The present study proposes the production of vinegars from pineapple processing residues as an eco-friendly strategy for adding value and economic strengthening of the production chain. Pineapple pulp and peel wines were produced and acetificated to vinegar by wild strains of acetic bacteria using Orlean's method (traditional system) followed by enrichment with leaf extract of Red-Jambo, Syzygium malaccense. Appreciable phenolic contents and antioxidant potential were found in pulp and peel vinegars with the added leaf extract.

View Article and Find Full Text PDF

Taro mucilage, a hydrocolloid present in the rhizome of (L.) Schott, was extracted and characterized by infrared spectroscopy, X-ray diffraction, scanning electron microscopy, thermal analysis, and proximal composition. In addition, cosmetic formulations based on extracted mucilage were developed and studied.

View Article and Find Full Text PDF

Flour from Pereskia aculeata leaf and green banana were used as ingredients in the formulation of a cereal bar with added Lactobacillus acidophilus LA02-ID-1688. Encapsulation in a calcium-alginate hydrogel reinforced with magnesium hydroxide was used as a strategy to protect the probiotic cells under gastrointestinal conditions and to prolong shelf-life. The results are relevant especially for maintaining cell viability during shelf-life; a challenge for the food industry in relation to dry probiotic products.

View Article and Find Full Text PDF

Apple pomace was studied as a raw material for the production of xylitol and 2G ethanol, since this agroindustrial residue has a high concentration of carbohydrate macromolecules, but is still poorly studied for the production of fermentation bioproducts, such as polyols. The dry biomass was subjected to dilute-acid hydrolysis with HSO to obtain the hemicellulosic hydrolysate, which was concentrated, detoxified and fermented. The hydrolyzate after characterization was submitted to submerged fermentations, which were carried out in Erlenmeyer flasks using, separately, the yeasts Candida guilliermondii and Kluyveromyces marxianus.

View Article and Find Full Text PDF
Article Synopsis
  • This study is the first to report on the composition, antimicrobial potential, and antioxidant abilities of essential oil derived from Baccharis oreophila leaves, obtained via hydrodistillation and analyzed with GC/MS.
  • The essential oil yielded 0.47% and contained 65 compounds, primarily khusimone and spathulenol, with a notable presence of oxygenated compounds and hydrocarbons.
  • Antimicrobial activity was confirmed against S. aureus and C. albicans, while antioxidant properties were evaluated using FRAP, ABTS, and DPPH methods, highlighting the essential oil's significant biological potential for further research.
View Article and Find Full Text PDF

In trinitrotoluene (TNT) purification process, realized in industries, there are two washes carried out at the end of the procedure. The first is performed with vaporized water, from which the first effluent, called yellow water, is originated. Then, a second wash is performed using sodium sulfite, generating the red water effluent.

View Article and Find Full Text PDF