In this study, green technology was applied for extraction of compounds from wastewater-grown microalga biomass with the final goal obtaining microbiologically safe products within a sustainable biorefinery process zero waste. Tetradesmus obliquus resulting brewery wastewater treatment, (To-CO2) and without CO2 supplementation (To), submitted to subcritical water (SWE) at temperatures 120–220 °...

The objective of this study was to evaluated the photoprotective effects of porcine placenta extract (PPE) on ultraviolet B (UVB)-induced oxidative stress in human keratinocytes (HaCaT) to evaluate its functional activities as a skin food ingredient. PPE prepared by subcritical water extraction was termed SPE, and subsequently digested by enzymes to prepare E-SPE. Increased intracellular reacti...

Reverse phase liquid chromatography (RPLC) is a commonly used separation and analysis technique. RPLC typically employs mixtures of organic solvents and water or aqueous buffers as the mobile phase. With RPLC being used on a global scale, enormous quantities of organic solvents are consumed every day. In addition to the purchasing cost of the hazardous solvents, the issue of waste disposal is a...

The subcritical fluid extraction of lovastatin from tablet powder mixtures prepared in this laboratory and MEVACOR tablets is successfully demonstrated. Methanol modifier percentage, additive type (acidic, basic, or neutral), and additive concentration on the extraction efficiency are examined. The extraction recoveries of lovastatin from MEVACOR tablets are shown to be highly dependent on meth...

Este trabalho apresenta os resultados de um estudo sobre o uso da água subcrítica, como reagente e solvente, para a reação de hidrólise de óleo de milho sem o emprego de ácidos e base entre as temperaturas de 150-280 °C. A hidrólise de óleo de milho leva à formação dos seus respectivos ácidos graxos, com a mesma eficiência dos métodos convencionais. Os ácidos graxos formam um grupo importante d...