In the present work supercritical fluid extraction (SFE) using CO2, was applied for the pre-treatment of mandarin peels. Two-step extraction, combining SFE and conventional extraction, was investigated. During the first extraction step supercritical CO2 at temperatures 25, 40 and 60°C and pressures from 100 to 300 bar was applied to remove the non-polar components from the extracting material. ...

Abstract The extraction, and stability of polyphenols from the grape residue were studied. extractions performed following Box-Behnken design, surface response methodology was used to model extraction total anthocyanins (TA), flavonols (TF), phenolics (TP). optimized simultaneously by desirability function. degradation kinetics monomeric anthocyanins, increase in polymeric color modeled under r...

Food-borne polyphenols have long contributed to human health via multifaceted mechanisms, while emerged studies especially those published in recent 10 years witnessed the close relevance between bioactivity of with iron homeostasis. Polyphenols are involved various physiological processes and manifest multidirectional regulative effects. The diversiform polyphenols–iron interactions extended c...

Abstract Aqueous extracts from Ascophyllum nodosum brown edible seaweeds were obtained after continuous ultrasound-assisted extraction. The effect of sonication time (from 2 to 6 min), amplitude 80 100%) and solvent-solid ratio 20 40 g water −1 dried seaweed) on the features was studied employing a Box-Behnken experimental design. Extracts characterised by polyphenols, carbohydrate uronic acid ...

Kiwi fruit (Actinidia chinensis Planch.) seeds, present as a by-product in the food and pharmaceutical industries, remain underutilized. In this study the extraction conditions for the maximum recovery of total phenolic content (TPC) with high DPPH scavenging capacities (DPPHsc) were analyzed for kiwi fruit seed polyphenols (KSP) by response surface methodology. The optimal conditions for the h...