This investigation is based on the automated solid phase microextraction GC-MS analysis of the volatile fraction of a variety of coffee bean matrices. Volatile analytes were extracted by headspace (HS)-SPME which was achieved with the support of automated instrumentation. The research was directed towards various important aspects relating to coffee aroma analysis: monitoring of the volatile fr...

In this study, the effects of oven roasting and microwave on some properties walnut kernels were determined. Roasting methods at different temperatures (70, 100, 130 ºC for one hour) powers (240, 535 830 W 5 min) applied to samples. Moisture ratio values, total phenolic compound, antioxidant activity, oil yield roasted unroasted products discussed. The highest was determined in high temperature...

The aim of the present work was to produce a polyaluminium ferric silicate chloride (PAFSiC) coagulant from acidic and alkaline wastewater of purifying graphite by roasting, and subsequently to evaluate coagulation efficiency of the reagent by treating surface water from the Yellow River as well as municipal wastewater in comparison with the conventional coagulant polyaluminium chloride (PAC). ...

Coffee is known as one of the most popular beverages around world. belongs to botanical family Rubiaceae and genus coffea. The two economically important species are C. arabica (arabica coffee) canephora (robusta coffee).The health benefits coffee due presence many biologically active components such caffeine, chlorogenic acid, nicotinic quinolinic trigonelline, tannic pyrogolic acid. postharve...

Roasting is the most common way for pistachio nuts processing, and the purpose of that was to increase the products total acceptability. Purpose of this study was to investigate the effect of temperature (90, 120 and 150°C), time (20, 35 and 50 min), and roasting air velocity (0.5, 1.5 and 2.5 m/s) on geometrical attributes of pistachio nuts and kernels including principle dimensions, shape fac...

The separation of graphites and cathode materials from spent lithium-ion batteries (LIBs) is essential to close the loop material used in LIBs. In this study, roasting characteristics LIB are carefully analyzed, effects on surface morphology elemental chemical states electrode fully investigated by thermogravimetric analysis, SEM-EDS, XPS explore roasting–flotation enhancement mechanism. Then, ...

In this study, the production technology of rare-earth oxides from Eskişehir-Beylikova complex ore that contains barite, fluorite, elements, and thorium were investigated. processes can be used in thorium-free mixed rare earth tested. Roasting, leaching, solvent extraction precipitation methods respectively. Roasting temperature roasting duration determined as 600 °C 1 hour, The optimum leachin...