Optimization of the autolysis of rainbow trout viscera for amino acid release using response surface methodology.

Background: Due to the huge amounts of their production in Europe, their environmental impact, and the difficulty in processing them, there is a clear necessity for the valorization of rainbow trout viscera. Considering that the production of fishmeal with viscera can be problematic, and in order to make viscera more profitable, the production of fish protein hydrolysates has been considered. Although silage and enzymatic hydrolysis are the most common methods for obtaining hydrolysates, autolysis has emerged as an alternative method that uses endogenous enzymes of the viscera.

Characterization, ultrafiltration, depolymerization and gel formulation of ulvans extracted via a novel ultrasound-enzyme assisted method.

Sea lettuce, or Ulva spp., dominates global algal biomass and significantly contributes to "green tides.", representing a sustainable source for biomaterials.

Ongoing Opioid Treatment and Symptoms of Myocardial Infarction in Calls to the Emergency Medical Services.

Background: Ongoing opioid treatment can potentially modify symptoms of myocardial infarction (MI) and cause a lack of recognition and treatment delay.

Objectives: The purpose of this study was to examine MI symptoms and the time to hospitalization for patients in ongoing opioid treatment compared to patients without ongoing opioid treatment.

Methods: We evaluated calls to the Copenhagen Emergency Medical Services in Denmark from 2014 to 2018.

Evaluation of carrageenans extracted by an eco-friendly technology as source for gelled matrices with potential food application.

Red macroalgae are considered an immense source of hydrocolloids (agar and carrageenan) that are gaining momentum in the food industry as an alternative to animal-based ones, like gelatin. This work evaluates carrageenans extracted from four different red macroalgae (Chondrus crispus, Mastocarpus stellatus, Sarcopeltis skottsbergii and Gigartina pistillata) by an eco-friendly process (hydrothermal extraction), for their possible employment as food additives considering purity requirements stated by the European Regulation. In general, carrageenans presented a suitable composition, although some sample presented lower sulfate content than 15 % and higher As content than 3 mg/kg, being only carrageenans from Chondrus crispus and Sarcopeltis skottsbergii appropriate for gelled matrices formulation.

Hydrothermal extraction of ulvans from Ulva spp. in a biorefinery approach.

A simple cascade process based on the hydrothermal fractionation of Ulva spp. biomass was proposed. Considering the overall extraction yields (50 %), ulvan recovery (23 %), and ulvan composition, structural, mechanical and cytotoxic properties, the selected optimal final heating temperature was 160 °C.