Antioxidant activities of volatile and non-volatile fractions of selected traditionally brewed Korean rice wines
نویسندگان
چکیده
منابع مشابه
detection of volatile compounds of medicinal plants with some nano-sorbents using modified or new methodologies and investigation of antioxidant activity of their methanolic extracts
in this work, a novel and fast method for direct analysis of volatile compounds (davc) of medicinal plants has been developed by holding a filament from different parts of a plant in the gc injection port. the extraction and analysis of volatile components of a small amount of plant were carried out in one-step without any sample preparation. after optimization of temperature, extraction time a...
Volatile compounds analysis and antioxidant, antimicrobial and cytotoxic activities of Mindium laevigatum
Objective(s): Mindium laevigatum is an endemic plant of Iran and Turkey and is widely used as blood purifier, antiasthma and antidyspnea in traditional medicine. Chemical composition of volatile materials of the plant and its antioxidant, antimicrobial and cytotoxic activities were reported in this study. Materials and Methods: Simultaneous distillation-extraction (SDE) and GC-Mass-FID analysis...
متن کاملDetermination of non-volatile and volatile organic acids in Korean traditional fermented soybean paste (Doenjang).
Organic acids are formed in food as a result of metabolism of large molecular mass compounds. These organic acids play an important role in the taste and aroma of fermented food products. Doenjang is a traditional Korean fermented soybean paste product that provides a major source of protein. The quantitative data for volatile and non-volatile organic acid contents of 18 samples of Doenjang wer...
متن کاملAPPLIED MICROBIAL AND CELL PHYSIOLOGY Reduction of volatile acidity of wines by selected yeast strains
Herein, we isolate and characterize wine yeasts with the ability to reduce volatile acidity of wines using a refermentation process, which consists in mixing the acidic wine with freshly crushed grapes or musts or, alternatively, in the incubation with the residual marc. From a set of 135 yeast isolates, four strains revealed the ability to use glucose and acetic acid simultaneously. Three of t...
متن کاملVolatile Composition of Smoked and Non-Smoked Iranian Rice
In this work, the volatile profiles of smoked and non-smoked Iranian rice were identified, and their relative abundance was calculated and compared. Headspace solid-phase microextraction together with gas chromatography-mass spectrometry (SPME-GC-MS) were used to extract and identify the volatile compounds. The main groups of volatiles in Iranian rice were aldehydes, ketones, phenol derivatives...
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ژورنال
عنوان ژورنال: Journal of the Institute of Brewing
سال: 2014
ISSN: 0046-9750
DOI: 10.1002/jib.180