نتایج جستجو برای: coffee extract
تعداد نتایج: 191162 فیلتر نتایج به سال:
Ochratoxin A (OTA), ochratoxin B (OTB) and citrinin (CIT) in commercial foods were simultaneously determined and confirmed with high-performance liquid chromatography (HPLC) and liquid chromatography coupled with tandem mass spectrometry (LC/MS/MS). The samples examined were made up of cereal, fruit, coffee, and cacao products. The limits of quantification (S/N> or =10) of OTA, OTB and CIT were...
Isolation of polyphenols from spent coffee grounds and silverskin by mild hydrothermal pretreatment.
In this study, a new method for isolation of polyphenols (PP) from spent coffee grounds (SCG) and coffee silverskin (CS) is described. The method consisted of a mild hydrothermal pretreatment at 120°C, for 20 min, using a liquid-to-solid ratio of 20 mL/g. PP (determined as gallic acid equivalents, GAE) were the most abundant components in the extracts produced by this method, corresponding to 3...
18 Coffee silverskin (CS) is a thin tegument of the outer layer of green coffee beans and a major 19 by-product of the roasting process to produce roasted coffee beans. CS extracts obtained by the 20 treatment of CS with subcritical water at 25–270 o C were investigated on their antioxidant 21 activity using hydrophilic oxygen radical absorption capacity (H-ORAC) and DPPH radical 22 scavenging ...
A collaborative study was conducted to evaluate a method using immunoaffinity column cleanup with liquid chromatography (LC) for the determination of ochratoxin A (OTA) in green coffee at levels that could be included in possible future regulations of the European Union. The test portion was extracted with methanol-3% aqueous sodium hydrogen carbonate solution (50 + 50, v/v). The extract was fi...
OBJECTIVES We aimed to assess in healthy subjects 1) the effect of two doses of a new naturally inulin-rich soluble chicory extract (IRSCE) on overall gastrointestinal discomfort after short-term ingestion and 2) the effect on gastrointestinal symptoms of long-term consumption of IRSCE administered at a dose compatible with its future commercial use. METHODS First, the effect of IRSCE was ass...
Robusta green coffee bean extract (Coffee canephora) contains chlorogenic acid, a polyphenolic compound that functions as an antioxidant. It acts by inactivating the oxidation reaction to prevent free radicals from forming. In this study, robusta was made in serum preparations because high concentration of active ingredients. can immediately overcome skin problems and provide relaxing effect wh...
Background and objectives: Non-alcoholic fatty liver disease (NAFLD) is a common liver condition. On the other hand, coffee consumption has shown promising for gastrointestinal diseases. Detection of the most valuable biomarkers of decaffeinated coffee treatment in healthy and non-alcoholic fatty liver disease conditions was the aim of the present study. Methods:</stro...
Coffee has been drunk for millennia due to its taste and health benefits. High levels of polyphenols, especially flavonoids phenolic acids, are found in coffee contribute significantly flavor health-giving properties. In this study the total contents, antioxidant, tyrosinase inhibition green coffee, Turkish traditional extracts were evaluated. Antioxidant activities coffees examined by two diff...
In a broad sense, the name coffee is used not only for fruits of the coffee tree (cherry coffee), but also for processed fruit such as green (raw) coffee, roasted coffee, instant coffee, and coffee as a beverage. The grading and quality evaluation of coffee beans is based on uniformity, purity, the absence of damaged beans, and decisively on the organoleptic properties of the beverage prepared ...
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