Antioxidative polyphenolics obtained from spent coffee grounds by pressurized liquid extraction
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چکیده
منابع مشابه
Extraction of polysaccharides by autohydrolysis of spent coffee grounds and evaluation of their antioxidant activity.
The extraction of polysaccharides by autohydrolysis of spent coffee grounds (SCG) was studied. Experimental assays were performed using different temperatures (160-200°C), liquid/solid ratios (5-15ml water/g SCG) and extraction times (10-50min) in order to determine the conditions that maximize the extraction of polysaccharides with high antioxidant activity. Autohydrolysis was demonstrated to ...
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Extraction and Evaluation the Biological Activities of Oil from Spent Coffee Grounds Phung T. K. Le*, Quan T. H. Vu, Quan T. V. Nguyen, Khoa A. Tran, Kien A. Le Ho Chi Minh city University of Technology, VNU-HCM, Ho Chi Minh City, Vietnam. Ho Chi Minh city University of Natural Resources and Environment, Ho Chi Minh City, Vietnam. Institute for Tropicalisation and Environment, Ho Chi Minh City,...
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Spent coffee grounds (SCG), obtained during the processing of coffee powder with hot water to make soluble coffee, are the main coffee industry residues and retain approximately seventy percent of the polysaccharides present in the roasted coffee beans. The purpose of this study was to extract polysaccharides from SCG by using an alkali pretreatment with sodium hydroxide at 25°C, and determine ...
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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...
متن کاملChemical, Functional, and Structural Properties of Spent Coffee Grounds and Coffee Silverskin
Spent coffee grounds (SCG) and coffee silverskin (CS) represent a great pollution hazard if discharged into the environment. Taking this fact into account, the purpose of this study was to evaluate the chemical composition, functional properties, and structural characteristics of these agroindustrial residues in order to identify the characteristics that allow their reutilization in industrial ...
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ژورنال
عنوان ژورنال: South African Journal of Botany
سال: 2017
ISSN: 0254-6299
DOI: 10.1016/j.sajb.2016.12.011