microwave and microwave-assisted drying effect on

EFFECTS OF FREEZING PRETREATMENT MICROWAVE‐ASSISTED

ABSTRACT Three drying factors including pre‐drying treatment (freezing) microwave‐assisted drying (single‐mode applicator‐microwave vibro‐fluidized bed [SMA‐MVFB] and vibro‐fluidized bed [VFB] drying) and drying temperatures (110–185C) were varied to investigate their effects on drying characteristics energy consumption and instant rice quality

EFFECTS OF FREEZING PRETREATMENT MICROWAVE‐ASSISTED

Aug 01 2013ABSTRACT Three drying factors including pre‐drying treatment (freezing) microwave‐assisted drying (single‐mode applicator‐microwave vibro‐fluidized bed (SMA‐MVFB) and vibro‐fluidized bed (VFB) drying) and drying temperatures (110–185C) were varied to investigate their effects on drying characteristics energy consumption and instant rice quality During drying cooked

Effect of microwave assisted hot air drying on quality of

The research aimed to compare quality of dried pumpkin among hot air drying at 60C and 70C microwave (8 W/g) assisted hot air drying (70C) and microwave (8 W/g and 9 6 W/g) assisted hot air drying (70C) under vacuum condition (13 3 kPa) Applying microwave could reduce drying time by 80% Due to the decreased drying time the microwave assisted hot air drying produced dried

Microwave Technology in Freeze

Jul 05 2017Dehydrating is one of the most common processes in industry This process is implemented by various techniques such as freeze-drying It is an energy-consuming process Microwave sources are a good choice to supply the energy needed for this process In reality it is microwave-assisted freeze-drying The microwave sources can be delivered around a few kilowatts

How exactly do I microwave and decarboxylate cannabis?

Jul 06 2013I will not use the microwave to dry my Cannabis It takes away too much of the natural goodness The taste is terrible and it drains the potency from the THC out of Cannabis Here is a couple of microwave instructions you can use if you must I

Effect of microwave power on foam

The increase of microwave power accelerated the dehydration of the foam and it was observed that the drying time reduced about 15-16 times in case of microwave assisted foam-mat drying as compared to simple foam-mat drying There was no adverse effect on colour titrable acidity and pH of the product and the retention of

CiteSeerX — Effect of microwave power on foam

The increase of microwave power accelerated the dehydration of the foam and it was observed that the drying time reduced about 15-16 times in case of microwave assisted foam-mat drying as compared to simple foam-mat drying There was no adverse effect on colour titrable acidity and pH of the product and the retention of ascorbic acid in

Effects of Combined Coating and Microwave Assisted Hot

The effect of coating hot-air and microwave drying on the texture microstructure and rehydration characteristics of Golden Deliciousapple slices (22mm diameter 4mm thickness) was investigated Blanching was carried out in hot water (80C 1 min)

Microwave Pasteurization and Sterilization of Foods

Microwave has been successfully used to heat dry and sterilize many food products Compared with conventional methods microwave processing offers the following advantages: (i) microwave penetrates QfE2 o 2 Microwave Pasteurization and Sterilization of Foods 693 TABLE 28 1 Frequencies Assigned by the Federal Communications

Effect of microwave pretreatment on permeability and

Full Article Effect of Microwave Pretreatment on Permeability and Drying Properties of Wood Xia He a Xingyang Xiong a Jie Xie a Yunyan Li a Yanqiang Wei a Peng Quan a Qunying Mou b and Xianjun Li a * A microwave (MW) treatment of plantation eucalyptus (Eucalyptus urophylla) wood was investigated by applying MW treatments with varying conditions such as radiation power irradiation

The Influence of Microwave Drying on Biomass Pyrolysis

Sep 19 2007Microwave drying is a rapid high-effect and economical method to decrease the moisture content of biomass materials to produce higher quantity and better quality bio-oil during the fast pyrolysis process In this paper the influence of microwave drying on the behavior of biomass pyrolysis was investigated in a bench-scale fluidized-bed reactor in comparison to drying in an electrical oven

FLUIDIZED BED MICROWAVE AND MICROWAVE ASSISTED

This study is aimed to compare the fluidized bed and microwave drying with microwave assisted fluidized bed drying For this purpose macaroni beads (2 40 08 was concluded that the drying time was reduced more by the effect of microwave energy than the fluidization

Dielectric heating

Dielectric heating also known as electronic heating radio frequency heating and high-frequency heating is the process in which a radio frequency (RF) alternating electric field or radio wave or microwave electromagnetic radiation heats a dielectric material At higher frequencies this heating is caused by molecular dipole rotation within the dielectric

Coupling Microwave

2 2 Microwave-Assisted Low-Temperature Air Drying Coconut samples were dried using a microwave-assisted hot-air drying apparatus (Shikoku Instrumentation Co Ltd Japan) The apparatus operates at a frequency of 2 45GHz similar to that of a domestic microwave oven with a power programmable from 0 to 1500W

Effect of microwave assisted hot air drying on quality of

The research aimed to compare quality of dried pumpkin among hot air drying at 60C and 70C microwave (8 W/g) assisted hot air drying (70C) and microwave (8 W/g and 9 6 W/g) assisted hot air drying (70C) under vacuum condition (13 3 kPa) Applying microwave could reduce drying time by 80% Due to the decreased drying time the microwave assisted hot air drying produced dried

Kinetics and Quality of Microwave

The effect of microwave-assisted convective air-drying on the drying kinetics and quality of mango was evaluated Both microwave power and pretreatment time were significant factors but the effect of power was more profound Increase in microwave power and pretreatment time had a positive effect on drying time The nonenzymatic browning index of the fresh samples increased from 0 29 to 0 60

Mathematical modeling of microwave

the effect of microwave-assisted convective drying on the color of dried grapes 2 Mathematical modeling of heat and mass transfer 2 1 Heat transfer modeling In order to explain the heating profile of grapes during microwave-assisted convective drying a mathematical model was proposed by applying one-dimensional heat transfer equation in

Comparison of carrot (Daucus carota) drying in microwave

Souraki B A Andrs A and Mowla D Mathematical modeling of microwave-assisted inert medium fluidized bed drying of cylindrical samples carrot Chemical Engineering and Processing: Process Intensification 48 p 296 (2009) [ Links ] Stepien B Effect of vacuum-microwave drying on selected mechanical and rheological properties of carrot

Spouted bed and microwave

Microwave-assisted spouted bed drying at microwave power of 3 5W/g and 7 5W/g reduced drying time by at least 60% and 85% respectively compared to spouted bed drying The effective diffusivity values were in the range of 1 4410−10–3 3210−10 in spouted bed drying while they were between 5 0610−10 and 11 310−10 in microwave

Microwave

In order to overcome the downside of long conventional freeze-drying (CFD) process times for monoclonal antibody formulations microwave-assisted freeze-drying (MFD) was introduced Recently the general applicability and potential shortening of drying times were shown However little is known about the storage stability of MFD products compared to CFD references

Drying: An Excellent Method for Food Preservation

assisted microwave drying microwave assisted fluidized bed drying Some of them are discussed in this review paper are given below- i Hot air convective drying The principle of hot air convective drying is based on conventional heat transfer from heated (2006) studied the effect of air parameters on microwave-assisted drying of bananas

Microwave assisted drying of banana: effects on reducing

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 axial positions in thick slices of banana according to a properly defined cutting and assaying protocol The effects of the microwave-assisted drying process were compared to the convective

Microwave

reaction mixtures i e microwave‐assisted chemistry The application of microwave radiation in chemistry has lead to better yields improved selectivity or enables conversions otherwise impossible 2‐5 These combined observations have been referred to as microwave effects

Significant Drying Time Reduction Using Microwave

freeze-drying (CFD) 1 2 One approach to reduce drying time is microwave-assisted freeze-drying (MFD) which is a well-known process in food technology for high-value goods needing signifi-cantly shorter process times while maintaining overall quality of the product that is color taste texture and shape 3-5 Especially in

Trends in microwave

Trends in microwave-assisted freeze drying of foods: Authors: Duan X Zhang M Mujumdar S Wang R Keywords: Dehydration Drying time Energy savings and freeze drying and assisted microwave/vacuum microwave drying in two consecutive separate drying stages (MFD-2) MFD is a rapid dehydration technique that can be applied to certain foods