搜索结果: 1-15 共查到“食品科学技术 microwave”相关记录41条 . 查询时间(0.077 秒)
Effect of Microwave Technology on Some Quality Parameters and Sensory Attributes of Black Tea
hot drink microwave drying polyphenols antioxidant activity quality characteristics sensory analysis
2016/12/9
Although the quality of black tea mainly depends on the constituents and conditions of raw material, the manufacturing process also plays a significant role in obtaining high quality tea products. In ...
Optimisation of microwave-assisted extraction of flavonoids and phenolics from celery (Apium graveolens L.) leaves by response surface methodology
Box-Behnken experimental design total flavonoids total phenolics antioxidant activity
2016/12/9
The conditions for microwave-assisted extraction (MAE) of total flavonoids (TF) and total phenols (TP), and antioxidant activity from celery (Apium graveolens L.) leaves by response surface methodolog...
Effect of microwave modification on mechanical properties and structural characteristics of soy protein isolate and zein blended film
protein film protein modification breaking strength fracturing distance structural characteristics
2016/5/11
Soy protein isolate (SPI) and zein were blended at different ratios, and native and microwave-modified films were prepared at pH 12 in an ethanol/water (20 : 80) mixture. The effect of the...
Microwave drying of green bean slices: drying kinetics and physical quality
Phaseolus vulgaris effective diffusivity drying mathematical modelling rehydration colour
2015/7/28
Several microwave power settings were applied to green beans in order to determine the effect on the drying kinetics along with the rehydration ratio and colour values. In the experiments, several mic...
Utilization of Egyptian Tomato Waste as a Potential Source of Natural Antioxidants Using Solvents, Microwave and Ultrasound Extraction Methods
Egyptian Tomato Waste Natural Antioxidants
2016/6/2
This study was conducted to access the extraction yield of antioxidant and their activity from Egyptian tomato waste. Conventional and novel assisted extraction methods (ultrasound and microwave) usin...
Microwave assisted drying of banana: effects on reducing sugars and polyphenols contents
microwave banana reducing sugar polyphenolpoly-phenol-oxidase
2014/8/11
The effects of microwave assisted drying on banana fruit was evaluated. Water, reducing sugars, and polyphenol contents, as well as poly-phenol-oxidase activity were evaluated along the radial and axi...
Antioxidant activity of red beet juices obtained after microwave and thermal pretreatments
betalains Beta vulgaris L. ORAC HORAC fruit-vegetable juices
2014/2/24
Pressed juices and water extracts from untreated, microwave pretreated, and thermally treated red beet were obtained. The highest total betalain content ?606.34 mg/100 g dry matter (DM) was found in p...
Microwave drying behaviour of tomato slices
drying rate diffusion moisture content colour analysis
2014/2/24
The microwave drying behaviour of tomato slices was investigated experimentally to determine the effects of microwave power on the drying rate, energy consumption, and dried product quality in terms o...
Effect of microwave thawing on microstructure and physicochemical stability of low fat white sauces made with soy protein
Confocal laser scanning microscopy (CLSM) microwave heating SDS-PAGE soy protein isolate starch
2014/2/24
The microstructural and physicochemical stability of white sauces made with soy protein and modified waxy maize starch was evaluated after subjecting them to a freezing-thawing process in a convention...
Diastase number changes during thermaland microwave processing of honey
honey microwave enzymes heating
2014/2/25
The presented paper covers the preliminary studies on microwave inactivation of honey enzymes described as diastase number (DN). All the investigations were done on commercially available honey from P...
Microwave-assisted phosphorylation of soybean protein isolates and their physicochemical properties
soybean protein sodium tripoly phosphate microwave-phosphorylation emulsifying properties molecular characteristics
2014/2/25
In order to improve the functional properties of soybean protein isolates (SPI), microwave-assisted phosphorylation (MAP) was applied. The result showed that after microwaving at 600 W for 3 min, the ...
Determination of fluoride in plant material using microwave induced oxygen combustion
ion-selective electrode sample preparation tea
2014/2/25
Fluorine is essential in human and/or animal nutrition, thus it is important to know its concentration in a diet. One of the important sources of fluorine for humans is tea, containing relatively high...
HS-SPME/GC/MS profiles of convectively and microwave roasted Ivory Coast Robusta coffee brews
coffee brew HS-SPME/GC/MS roasting, microwaves volatile compounds
2014/2/25
Robusta coffee beans were convectively, microwave, and convectively-microwave heated at 230°C, 700 W, and 230°C/700 W (coupled heating), respectively, over periods of time ensuring the optimum sensory...
Impact of microwave heating on hydroxymethylfurfural content in Czech honeys
honey hydroxymethylfurfural HMF microwave heating
2014/2/25
As far as honey is concerned, microwave oven heating finds its use especially for crystallised honey reliquefying. We focused on monitoring the changes in hydroxymethylfurfural content which is an ind...
Microwave Assisted Synthesis and Characterization of Acetate Derivative Cassava Starch
Microwave Assisted Synthesis Characterization of Acetate Derivative Cassava Starch
2010/11/8
The aim of this study were to observe the possibility of application of microwave heating in the acetylation of cassava starch and to study the physicochemical properties of the starch acetate obtaine...