in this work, the interfacial interfacial polymerization (ip) technique was employed using terephthaloyl chloride (tpc) and p-phenylenediamine (ppd), as reactant monomers, to prepare poly(paraphenylene terephthalamide) thin film composite (tfc) nanofiltration on polyethersulphone (pes) support layer. the effects of six different anionic and non-ionic surfactants, in the aqueous phase on the mor...

Abstract Yerba mate is a tree natural from South America, traditionally daily consumed as hot ( chimarrão ) or cold tereré and roasted leaves (mate tea) infusions, being an important source of polyphenols flavonoids in human nutrition. To produce bioactive-rich extracts yerba mate, oven-dried at 35 °C three different commercial products, named M, T, S, were extracted using General Recognized Sa...

Genus Silene (Caryophyllaceae) is very rich in secondary metabolites and has an antiviral, antimalarial, antitumor, antibacterial antioxidant properties, but Balkan endemic sendtneri (Sendtner's campion) not analyzed from the aspect of phenolic composition their biological activities. Evaluation total contents (TPC) flavonoid (TFC), antimicrobial activities hydromethanolic extracts inflorescenc...

Breeding strategy of Acacia hybrid is being developed by Center for Forest Biotechnology and Tree Improvement Indonesia has produced three superior clones in growth (Clone 16, 25, 44). Understanding the extractives new might determine future development steps to improve its resistance diseases especially heartrot. The objective this study was investigate extractive content radial directions (SW...

This experiment focused on determination of antioxidant activity onion skin (OS), extracted by three techniques i.e. Microwave Assisted Extraction (MAE), Soxhlet and Maceration with different ethanol (EtOH) concentrations. Total Phenolic Content (TPC) Flavonoid (TFC) were estimated Folin-ciocaltteu method Aluminium Chloride respectively. Antioxidant (AOA) was assessed Diphenyl Picryl Hydrazyl (...

BACKGROUND: Vernonia amygdalina is a native plant from Africa which widely distributed to Asia, especially in Indonesia. Parts of V. such as roots, leaves, and bark are used by the community traditional medicines antidiabetic, antibacterial, anticancer. AIM: This study aims show effect solvents stem extraction process on phytochemical’s content their correlation with pharmacological activities....

Abstract The purpose of this study was to predict the total phenolic content (TPC) and flavonoid (TFC) in several horticultural commodities using near-infrared spectroscopy (NIRS) combined with machine learning. Although models are typically developed for a single product, expanding coverage model can improve efficiency. In study, 700 samples were used, including varieties shallot, cayenne pepp...

This study compares the yields of different extractions methods for a Brazilian variety Humulus lupulus using scCO2, scCO2 + ethanol, ethyl acetate, and compressed propane. Extracts were characterized by total phenolics content (TPC), flavonoid (TFC), antioxidant activity (AA). The extraction from 2.7 to 10.1 wt% when propane at 20 °C 10 MPa acetate 80 25 MPa, respectively. Furthermore, effect ...

The effects of CO2 injection and barrel temperatures on the physiochemical and antioxidant properties of extruded cereals (sorghum, barley, oats, and millet) were studied. Extrusion was carried out using a twin-screw extruder at different barrel temperatures (80, 110, and 140°C), CO2 injection (0 and 500 mL/min), screw speed of 200 rpm, and moisture content of 25%. Extrusion significantly incre...