The Role of Membranes in Modern Winemaking: From Clarification to Dealcoholization.

The utilization of membrane technologies in winemaking has revolutionized various stages of production, offering precise and efficient alternatives to traditional methods. Membranes, characterized by their selective permeability, play a pivotal role in enhancing wine quality across multiple processes. In clarification, microfiltration and ultrafiltration membranes, such as ceramic or polymeric membranes (e.

Use of Organic Acids to Control and Infection in Swine Jowl Fat.

The objective of this work was to evaluate the mortality of and inoculated in fresh swine jowls treated with different concentrations of organic acids (lactic, acetic, citric, and ascorbic) for 1, 5, and 10 min. Lactic and acetic acids showed minimum inhibitory concentrations (MICs) of 1.25 and 0.

Biotransformation of rifampicin by Aspergillus niger and antimicrobial activity of proposed metabolites.

Drug biotransformation studies emerges as an alternative to pharmacological investigations of metabolites, development of new drug candidates with reduced investment and most efficient production. The present study aims to evaluate the capacity of biotransformation of rifampicin by the filamentous fungus Aspergillus niger ATCC 9029. After incubation for 312 h, the drug was metabolized to two molecules: an isomer (m/z 455) and the rifampicin quinone (m/z 821).

Evaluation biodegradable films with green tea extract for interleafing sliced meat products.

A selection of formulations with different polymers and concentrations of green tea extract was conducted for application as interleafs in sliced meat products. Films were formulated using cellulose acetate, corn starch, and chitosan with the addition of 1.0, 2.

Purification, bioactivity and application of maltobionic acid in active films.

Unlabelled: The objective of this study was to purify sodium maltobionate using cells immobilized in situ on flexible polyurethane (PU) and convert it into maltobionic acid for further evaluation of bioactivity (iron chelating ability, antibacterial potential and cytoprotection) and incorporation into films based on cassava starch, chitosan, and cellulose acetate. Sodium maltobionate exhibited a purity of 98.1% and demonstrated an iron chelating ability of approximately 50% at concentrations ranging from 15 to 20 mg mL.