Chestnut (Castanea sativa) shells (CSs), an undervalued agro-industrial biowaste, have arisen as a source of bioactive compounds with promising health-promoting effects. This study attempted, for the first time, to develop functional food, namely cookies, using CS extract obtained by eco-friendly technology (subcritical water extraction). The cookies were characterized regarding their nutritional composition, total phenolic and flavonoid contents (TPC TFC, respectively),...

Orange peels, generally considered as waste, were treated with subcritical water (SWE)—a green technology and environmentally friendly extraction process—at different temperatures (120–200 °C) times (5–60 min). The extracts which obtained chemically biologically characterised to evaluate this potential source of bioactive compounds. total phenolics content (TPC) flavonoids contents (TFC), well antioxidant capacity (TAC), DPPH radical scavenging activity, carbohydrate content, determined by...

Chestnut (Castanea sativa) shells (CS) are an appealing source of antioxidants. In previous studies, the research team validated a nutraceutical extract from CS, recovered by eco-friendly technology, in-vitro and in-vivo assays, developed functional cookies enriched with this extract. This study attempts, for first time, to investigate impact gastrointestinal digestion in phenolic composition, bioaccessibility, antioxidant/antiradical properties, α-amylase inhibition CS extract-enriched...

Winter savory (

This study aims to validate a new cosmetic ingredient from Salicornia ramosissima S J. Woods through in vitro and ex vivo assays. The halophyte extracts were obtained by subcritical water extraction (SWE) at different temperatures (110, 120, 140, 160 180 °C). antioxidant/radical scavenging activities the phenolic profile screened for all extracts. optimal extract was assessed keratinocytes fibroblasts, while permeation assays performed Franz cells. inhibitory activity of hyaluronidase...

The genus Achillea has significant medical potential due to the presence of highly bioactive compounds in its chemical composition. To take advantage plants’ biomedical potential, it is great importance use a proper extraction process. This study aimed determine and compare preliminary composition five different species extracted with two conventional (infusion maceration) non-conventional (ultrasound-assisted (UAE) Subcritical water (SWE)) techniques. extracts were prepared using previously...

In this research the efficiency of degradation different organic contaminant classes, including pesticides (tembotrione, clomazone), pharmaceuticals (ciprofloxacin, 17α-ethinyl estradiol) and mycotoxins (zearalenone, deoxynivalenol, fumonisin B1), by subcritical water treatment, was studied in model systems. All experiments were conducted a house-made batch type pilot reactor. The focused on optimization treatment parameters using moderate conditions. Optimization remediation processes...

In this research, the efficiency of degradation different organic contaminant classes, including pesticides (tembotrione, clomazone), pharmaceuticals (ciprofloxacin, 17α-ethinyl estradiol) and mycotoxins (zearalenone, deoxynivalenol, fumonisin B1) with subcritical water treatment was studied in model systems. All experiments were conducted a house-made batch-type pilot reactor. The research focused on optimization parameters using moderate conditions. Optimization remediation processes...

This paper describes an electroanalytical method for the determination of metribuzin using a thin film mercury electrode by chronopotentiometry.

A novel, simple, sensitive and reliable electrochemical method for the riboflavin determination using chronopotentiomery with glassy carbon electrode was developed. The most important instrumental parameters of chronopotentiometry including type concentration supporting electrolyte, initial potential current range were examined optimised in respect to analytical signal. Riboflavin provided well defined reduction signal at -0.12 V vs . Ag/AgCl (3.5 mol/L KCl) 0.025 HCl. Under optimal...

The most important experimental parameters of the flow potentiometric stripping analysis (PSA) with oxygen as an oxidant were investigated and optimised. A simple, homemade system consisting glassy carbon tubes, which served a working auxiliary electrode, was used. By applying rest period before step (the stop mode) by imposing constant reductive current simultaneously interruption potentiostatic control, significant increase PSA sensitivity achieved. In determination cadmium lead,...

The aim of this study was the investigation possibilities direct determination calcium, sodium and potassium in commercial kombucha-based fermented milk products by flame photometry. Two procedures were used for sample preparation: simple dilution with water (direct method) extraction mineral acid. Calcium, levels determined after mentioned preparation methods compared. results showed that differences between values obtained different treatment within experimental error at 95% confidence...

Kraft lignin was treated with subcritical water at moderate temperatures (120–220 °C) in different gas atmospheres, the goal of optimizing its depolymerization under mild conditions. Lignin observed and compared using homogeneous heterogeneous catalysts both nitrogen carbon dioxide atmospheres. The most important treatment parameters for maximum highest yields phenolic other aromatic monomers were optimized. influence process temperature, pressure, time atmospheres defined optimized...

Dandelion (Taraxacum officinale L.) has a long history in traditional herbalism worldwide. Described as non-toxic, the herb been consumed various forms valuable source of nutrients, minerals and vitamins, consumption which may help prevent or reduce risk complex diseases such cancer, obesity, arthritis, hepatitis, cardiovascular gastrointestinal disorders. All parts dandelion are edible contain flavonoids, phenolic acids, alkaloids terpenes, with best-studied extracts being from leaves...

<p><em>Boswellia serrata</em> Roxb. is a tree that mainly found in the dry regions of India. Its oleoresin, known internationally as Indian frankincense, used Ayurvedic, traditional Arabic and Chinese medicine. This gum resin contains 15-20% boswellic, lupeolic other pentacyclic triterpenic acids, which boswellic acids (beta-boswellic acid, keto-beta-boswellic acid acetil-11-keto-beta-boswellic acid) have been shown to anti-inflammatory, anticancer...

In this paper a sensitive voltammetric method was developed for determination of vitamin D3 in commercial dietetic supplements using unmodified glassy carbon electrode as working electrode. Following the optimization square-wave method, linear relationship between peak current and concentration perceived range 1.25-105 ?mol/L. The calculated values detection limit quantification were 0.24 0.73 ?mol/L, respectively. addition, analytical procedure revealed exceptional precision with RSD intra-...

This study compares different methods for the removal of oxygen from solution prior to chronopotentiometric determination insecticide imidacloprid on glassy carbon electrode. The research included application chemical method involving addition sulfite ion, and physical purging sample with nitrogen stream, as well their combination. By comparing analytical signals imidacloprid, showed almost same efficiency conventional method, while best reproducibility was achieved by applying saturated...

A new method for the determination of riboflavin (vitamin B2) was developed based on chronopotentiometry with a glassy carbon process vessel macroelectrode. The optimisation included investigation most important experimental parameters: type and concentration supporting electrolyte, initial potential, reduction current, working electrode surface area. signal appeared at about -0.12 V vs. Ag/AgCl (3.5 mol/dm3 KCl) in 0.025 HCl as electrolyte. linear response obtained range 0.05-4 mg/dm3....