the effect of microwave-vacuum pretreatment on the

Intensification of pretreatment and pressure leaching of

2015-12-7Abstract: The application of microwave irradiation for pretreatment of copper anode slime with high nickel content prior to pressure sulfuric acid leaching has been proposed The microwave-assisted pretreatment is a rapid and efficient process

The Effect of Microwave

The Effect of Microwave-Vacuum Pretreatment on the Drying Kinetics Color and the Content of Bioactive Compounds in Osmo-Microwave-Vacuum Dried Cranberries (Vaccinium macrocarpon) Food and Bioprocess Technology Nov 2017 Magdalena Zielinska Danuta Zielinska Marek Markowski Magdalena Zielinska Danuta Zielinska

Effects of Different Pretreatments on the Quality of Dried

The effects of blanching and 3% salt-water immersion pretreatments on the quality of dried sweet corn kernels by vacuum freezing drying high vacuum drying and vacuum microwave drying were investigated in this paper The effect of different pretreatments on the

Effect of Heat Pretreatment on the Yield and

2019-5-25The main differences between the convection oven and vacuum oven pretereatments were associated with the disappearance of free fatty acids and free phytosterols at the higher temperature pretreatments in the vacuum oven probably due to the lower boiling points of these lipids Microwave pretreatment was also effective but caused a much smaller

The Effect of Microwave

2017-11-29The aim of this study was to compare the effectiveness of microwave-vacuum pretreatment conducted at 100 500 and 800 W on the drying kinetics of whole cranberries (Vaccinium macrocarpon) during hybrid osmotic and microwave-vacuum drying ) during hybrid osmotic and microwave-vacuum

Influence of drying methods on activation energy

2012-5-10microwave pretreatment increased effective moisture diffusion Pretreatment with microwave power of 200 W had a more pronounced effect on the diffusion coefficient in comparison with that of the control and the 100 W microwave pretreatment Microwave pretreatment increases

The Effect of Methylcellulose Temperature and

2020-6-2Abstract The aim of this study was to determine the effect of microwave pretreatment usage of methylcellulose oil temperature and frying time on mass transfer during deep fat frying of chicken nuggets Methylcellulose was used in batter and as a coating on product Microwave with two power densities namely 3 7 and 7 4 W/g was used for

Effect of Microwave Pretreatment and Drying Methods on

2016-5-24The effect of microwave pretreatment with different microwave power 90 180 270 and 360 watt at 2 4 6 8 and 10 min on the quality of carrot samples was investigated Then the best microwave treatment (high quality parameters) was chosen to complete drying with two drying techniques convection and vacuum oven drier

Optimization of Vacuum

A new process of vacuum-microwave (VM) radiation pretreatment for extracting polysaccharides from the Ganoderma lucidum was proposed and the parameters were optimized by response surface methodology (RSM) The orthogonal-central composite design scheme was used and the responsive surfaces methodology of three factors and five levels was adopted and the factors influencing the

Applicability of vacuum‐microwave drying for tomato

Read Applicability of vacuum‐microwave drying for tomato fruit based on evaluations of energy cost color functional components and sensory qualities Journal of Food Processing and Preservation on DeepDyve the largest online rental service for scholarly research with thousands of academic publications available at your fingertips

The effect of high

At present there are no reports on vacuum freeze drying sea cucumber using HPEF pretreatment Therefore In the current study sea cucumber was treated in an HPEF pretreatment system prior to vacuum freeze drying and the effects of HPEF on sea cucumber's quality in terms of rehydration ratio shrinkage ratio protein values acid mucopolysaccharide content and texture characteristics

Yoghurt powder production using microwave–vacuum

3 1 Influence of microwave power chamber pressure and thickness The time required for yoghurt drying using microwave–vacuum drier at various combinations (C 0 C 1 C 2 and C 3) presented in Figure 2 As can be seen the absolute pressure level had no significant effect on drying time and no difference was observed for different pressures at the same powers while the microwave power

Effect of pretreatment prior to microwave vacuum

Fried durian chip is one of the popular durian products However fried durian chip may not be accepted by some consumers who concern about their health Drying is one of alternative methods to produce oil-free snack products This research aimed to develop dried durian chips by using microwave vacuum drying at 7 23 W g-1 and controlled pressure of 13 33 kPa

Table 7

The aim of this study was to compare the effectiveness of microwave-vacuum pretreatment conducted at 100 500 and 800nbsp W on the drying kinetics of whole cranberries (Vaccinium macrocarpon) during hybrid osmotic and microwave-vacuum drying Additionally the effect of microwave-vacuum pretreatment and subsequent osmo-microwave-vacuum drying on selected quality indicators of dried

Effect of process variables on energy efficiency in

microwave vacuum dryer at different microwave power and vacuum levels The weight of the sample was recorded at every 5 min intervals by putting "Off" the microwave oven and releasing the vacuum which took about a minute for each observation The samples were dried until its moisture content is reduced to 6 to 6 5 % (w b )

Effect of calcium pretreatments vacuum levels and

Apples were washed sliced steam blanched and dipped in 0-5% calcium chloride solution These slices were air dried to a moisture content of ~50%db and then vacuum microwave dried (VMD) to a final moisture content of ~5%db The effects of calcium pretreatment vacuum levels and apple varieties on the textural characteristics of VMD apple chips were determined by a TA XT2 Texture Analyzer

Bioengineering

The effect of the microwave pretreatment time on the DH under 800W microwave power after 15 to 210 s is shown in Figure 2 The variation of DH varied significantly (p 0 05) from one interval time to the other The DH values as a function of exposure time ranged from 11 25 to 25 7% and the results showed that the DH of the lotus seed proteins

Effect of Pretreatment Method on the Content of

The aim of the current research was to determine the best blanching method for processing of dill prior to microwave vacuum drying based on the content of phenolic compounds vitamin C and free radical scavenging activity Two blanching mediums were used – water and steam and for part of the samples microwave pretreatment was additionally used

Effect of Microwave Pretreatment on Gaharu Essential

This paper aims to investigate the effect of microwave pretreatment on gaharu essential oil extraction using the hydrodistillation method for the lower grade wood The gaharu wood was pre-treated with microwave irradiation power of 800 kW at three different durations which were 1 2 and 3 min

The Effect of Microwave Pretreatment on

2 2 Effect of Microwave Pretreatment on Physicochemical Properties of Oil Color plays a very important role in the sensory properties of oil As shown in Table 1 the MW treatment significantly (p 0 05) affected the Lovibond color of extracted peanut oils With the increasing MW treatment time the color of extracted oil gradually changed from light yellow (R 0 00/Y 1 20 Control) to light

The Effect of Microwave

2017-11-29The aim of this study was to compare the effectiveness of microwave-vacuum pretreatment conducted at 100 500 and 800 W on the drying kinetics of whole cranberries (Vaccinium macrocarpon) during hybrid osmotic and microwave-vacuum drying Additionally the effect of microwave-vacuum pretreatment and subsequent osmo-microwave-vacuum drying on selected quality indicators of dried

Effect of pretreatment prior to microwave vacuum

Fried durian chip is one of the popular durian products However fried durian chip may not be accepted by some consumers who concern about their health Drying is one of alternative methods to produce oil-free snack products This research aimed to develop dried durian chips by using microwave vacuum drying at 7 23 W g-1 and controlled pressure of 13 33 kPa

Influence of drying methods on activation energy

2012-5-10microwave pretreatment increased effective moisture diffusion Pretreatment with microwave power of 200 W had a more pronounced effect on the diffusion coefficient in comparison with that of the control and the 100 W microwave pretreatment Microwave pretreatment increases

Effects of osmotic dehydration vacuum

A high degree of vacuum was beneficial to the qualities of fillets In conclusion tilapia fillets retained their original quality properties after osmotically dehydrated vacuum-microwave drying (OD-VMD) optimum process parameters were MGR = 2 microwave time = 10 min power density = 20 W/g and vacuum degree = 0 08 MPa

The Effect of Methylcellulose Temperature and

2020-6-2Abstract The aim of this study was to determine the effect of microwave pretreatment usage of methylcellulose oil temperature and frying time on mass transfer during deep fat frying of chicken nuggets Methylcellulose was used in batter and as a coating on product Microwave with two power densities namely 3 7 and 7 4 W/g was used for

Effect of Convective and Vacuum–Microwave Drying

The Effect of Microwave-Vacuum Pretreatment on the Drying Kinetics Color and the Content of Bioactive Compounds in Osmo-Microwave-Vacuum Dried Cranberries (Vaccinium macrocarpon) Development of apple chips technology Development of apple chips technology

Effect of ultrasound pretreatment on wood prior to

Effect of ultrasound pretreatment on vacuum drying of chinese catalpa wood Drying Technology 30(15): 1750-1755 [ Links ] Hillis W 1996 Formation of robinetin crystals in vessels of Intsia species Iawa J 17: 405-420 [ Links ] Jangam S V 2011