Improvement of the catalytic infrared drying process and quality characteristics of the dried garlic slices by ultrasound-assisted alcohol pretreatment

LWT ◽  
2019 ◽  
Vol 116 ◽  
pp. 108577 ◽  
Author(s):  
Yabin Feng ◽  
Cunshan Zhou ◽  
Abu ElGasim A. Yagoub ◽  
Yanhui Sun ◽  
Patrick Owusu-Ansah ◽  
...  
Keyword(s):  
Quality Characteristics ◽  
Drying Process ◽  
Infrared Drying ◽  
Ultrasound Assisted

scholarly journals Quality characteristics of coffee beverage processed by ultrasound-assisted extraction

2016 ◽  
Vol 23 (5) ◽  
pp. 660-665
Author(s):  
Hun-Sik Chung ◽  
Jeong-Seok Cho ◽  
Han-Soo Kim ◽  
Dong-Seob Kim ◽  
Young-Guen Lee ◽  
...  
Keyword(s):  
Quality Characteristics ◽  
Ultrasound Assisted Extraction ◽  
Assisted Extraction ◽  
Ultrasound Assisted

scholarly journals Ultrasound-assisted emulsions with biopolymers for spray-drying of lemongrass essential oil

2021 ◽  
Vol 56 ◽  
Author(s):  
Gabriel Ribeiro Carvalho ◽  
Amanda Maria Teixeira Lago ◽  
Maria Cecília Evangelista Vasconcelos Schiassi ◽  
Priscila de Castro e Silva ◽  
Soraia Vilela Borges ◽  
...  
Keyword(s):  
Essential Oil ◽  
Spray Drying ◽  
Gum Arabic ◽  
Partial Substitution ◽  
Partial Replacement ◽  
Wall Material ◽  
Drying Process ◽  
Osa Starch ◽  
Ultrasound Assisted ◽  
Lemongrass Essential Oil

Abstract The objective of this work was to evaluate the partial replacement of gum arabic by modified starches on the spray-drying microencapsulation of lemongrass (Cymbopogon flexuosus) essential oil. The ultrasound-assisted emulsions were prepared with 30% (w/w) of wall material, 7.5% (w/w) of oil load, and 1:1 (w/w) replacement ratio for all treatments. After 16 hours, the incompatibility observed between gum arabic and octenyl succinic anhydride (OSA) starch did not affect the obtained microparticles, since the treatment with OSA starch, partially replacing gum arabic, showed the best results for the process yield and for the oil charge retention after spray-drying process, and the treatment showed Newtonian viscosity close to that of the treatment prepared with gum arabic. Maltodextrin dextrose equivalent 10 (10DE) shows an oil load similar to that of the treatment with gum arabic, while the presence of maize maltodextrin DE20 reduces the content of encapsulated oil and the efficiency of the drying process due to the adherence of particles to the chamber. Therefore, the partial substitution of gum arabic is an alternative for the formation of emulsions, for the spray-drying microencapsulation of lemongrass essential oil.

Optimization of microwave and infrared drying process of nettle leaves using design of experiments

2018 ◽  
Vol 135 (3) ◽  
pp. 1677-1685 ◽  
Author(s):  
Kamyar Movagharnejad ◽  
Fateme Vahdatkhoram ◽  
Sara Nanvakenari
Keyword(s):  
Design Of Experiments ◽  
Drying Process ◽  
Infrared Drying

Far-Infrared Drying Effects onto the Physical Characteristics of Aquilaria malaccensis Leaves

2019 ◽  
Vol 797 ◽  
pp. 196-201
Author(s):  
Habsah Alwi ◽  
Nurul Shazana Mohd Zain ◽  
Hanafiah Zainal Abidin ◽  
Jefri Jaafar ◽  
Ku Halim Ku Hamid
Keyword(s):  
Moisture Content ◽  
Manufacturing Industry ◽  
Food Product ◽  
Far Infrared ◽  
Color Difference ◽  
Drying Process ◽  
Infrared Drying ◽  
Aquilaria Malaccensis ◽  
Before And After ◽  
Very High

Drying also known as dehydration is commonly used as a unit operation in herbs manufacturing industry to preserve the food product by removing the moisture content in the herbs. Unfortunately, most drying process degraded the product quality because the feedstock is exposed to a very high temperature within a long period of time by using conventional oven Therefore this research has focused on the alternatives technique in overcoming the degradation of nutrients by applying the irradiation concepts. The objectives of this research were to investigate the effect of drying onto the physical properties of Aquilaria Malaccensis leaves by using fabricated far-infrared dryer. The experiments were conducted at various temperature ranging from 40, 50 and 60°C. The color difference and the moisture content of the leaves before and after drying were examined. The color measurements data shows that at 60°C, the brightness and the chroma were the highest. On the other hand, the hue angles were the highest for 60°C when the time was reached 100 minutes.

scholarly journals Modeling Of Infrared Drying Of Polymer Solutions

2021 ◽  
Author(s):  
MD Z Islam
Keyword(s):  
Dynamic Models ◽  
Nonlinear Partial Differential Equations ◽  
Polymer System ◽  
Drying Process ◽  
Free Volume Theory ◽  
Infrared Drying ◽  
System Temperature ◽  
Molecular Sizes ◽  
Using Data ◽  
Moving Substrate

This thesis presents the development of dynamic models for drying a coating polymer layer placed on fixed and moving substrate in a dryer using infrared (IR) heat source. The IR drying model is a set of coupled nonlinear partial differential equations (PDEs) arising from simultaneous mass and heat balances and they describe variations of the solvent concentration and the polymer system temperature during the drying process. The model was numerically solved in MATLAB environment and then validated using data from literature. Using polyvinyl acetate (in toluene) as a coating material on a polyester substrate, the simulation revealed that the model agrees with data and describes adequately well the drying kinetics. The modeling approach was also extended to simulate the drying of a polymer solution in a container. Since solvent and polymer molecular sizes are quite different, the diffusion coefficient was better described with free volume theory.

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