Drying intensification combining ultrasound pre-treatment and ultrasound-assisted air drying

2017 ◽  
Vol 215 ◽  
pp. 72-77 ◽  
Author(s):  
Madson L. Magalhães ◽  
Samuel J.M. Cartaxo ◽  
Maria Izabel Gallão ◽  
José V. García-Pérez ◽  
Juan A. Cárcel ◽  
...  
Keyword(s):  
Air Drying ◽  
Ultrasound Assisted ◽  
Pre Treatment

scholarly journals Determining the Effect of Pre-Treatment in Rice Noodle Quality Subjected to Dehydration through Hierarchical Scoring

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1309
Author(s):  
Muhammad Heikal Ismail ◽  
Hii Ching Lik ◽  
Winny Routray ◽  
Meng Wai Woo
Keyword(s):  
Heat Pump ◽  
Freeze Drying ◽  
Oil Content ◽  
Hot Air Drying ◽  
Air Drying ◽  
Starch Gelatinization ◽  
Hot Air ◽  
Heat Pump Drying ◽  
Pre Treatment ◽  
Noodle Quality

Fresh rice noodle was usually coated in a large amount of oil to avoid stickiness and extend the shelf life. Pre-treatment has been applied to reduce the quantity of oil in rice noodle. In this research, the pre-treatment and temperature effect on the rice noodle quality subjected to hot air drying, heat pump drying, and freeze drying was investigated. Texture, color, oil content, and starch gelatinization of the dried noodle was further evaluated. Results revealed that there were significant differences (p < 0.05%) in texture, color, oil content, and starch gelatinization in rice noodle subjected to pre-treatment. Furthermore, the texture, color, oil content, and starch gelatinization demonstrated a significant difference (p < 0.05%) in freeze drying rather than hot air drying and heat pump drying. The findings indicate that the qualitative features of the dehydrated noodle are synergistic to pretreatment and drying temperature. Despite superior quality shown by freeze drying, the hierarchical scoring has proven that rice noodle undergoing hot air drying at 30 °C to produce comparable quality attributes. The hierarchical scoring can be a useful tool in quality determination for the food industry.

Effect of Combined Air-Drying-Osmotic Dehydration on Kinetics of Techno-functional Properties, Color and Total Phenol Contents of Lemon (Citrus limon. v. lunari) Peels

2016 ◽  
Vol 12 (6) ◽  
pp. 515-525 ◽  
Author(s):  
N. Ghanem Romdhane ◽  
N. Djendoubi ◽  
C. Bonazzi ◽  
N. Kechaou ◽  
N. Boudhrioua Mihoubi
Keyword(s):  
Sucrose Solution ◽  
Osmotic Dehydration ◽  
Color Stability ◽  
Significant Loss ◽  
Total Phenol ◽  
Total Phenol Content ◽  
Citrus Limon ◽  
Retention Capacity ◽  
Air Drying ◽  
Pre Treatment

Abstract Combined osmotic dehydration (sucrose solution: 50–70 % w/w, 30–50 °C for 2 h followed by air drying at 40 and 60 °C) is an appropriate process for preservation of oil retention capacity, lightness and yellowness of lemon peels (Citrus limon. v. lunari). Incorporation of sugars to lemon cuboids pieces increased drying rate during the first falling rate phase of the air dehydration step and improved their color stability. Osmotic dehydration process allows protective effect against further total phenol loss during air drying: significant loss of total phenol content (70–80 %) was recorded during osmotic dehydration and then it remains constant during air drying at 40 and 60 °C. For the investigated temperature of osmotic pre-treatment (30–50 °C), water retention capacities were reduced by up to 70 % and were maintained constant during air drying.

Research on Detecting Tris-(2,3-dibromopropyl)-Phosphate in Textiles with the HPLC/DAD Method

2012 ◽  
Vol 441 ◽  
pp. 640-644
Author(s):  
Ke Jie Fu ◽  
Li Sheng Yang ◽  
Chang Sheng Feng ◽  
Liang Chen
Keyword(s):  
Limit Of Detection ◽  
Extraction Process ◽  
Ultrasound Assisted Extraction ◽  
Routine Testing ◽  
Assisted Extraction ◽  
Ultrasound Assisted ◽  
Pre Treatment ◽  
Finishing Agent ◽  
Detecting Method ◽  
Precision Test

A detecting method for toxic flame retardant finishing agent tris-(2,3-dibromopropyl) -phosphate (TRIS for short) in textiles was studied. In the method, an acetonitrile ultrasound-assisted extraction process was included in sample pre-treatment, and HPLC/DAD was used in the separation and identification of extractives. After that, the conditions of pre-treatment and chromatograph were optimized. The results showed that the limit of detection (LOD) by this method (S/N10) is 1.0 mg/kg, its recovery ranged from 78.1% to 98.4%, and RSD of the precision test is 3.2%, of which all met the requirements for routine testing.

Assessing air-drying and rewetting pre-treatment effect on some soil enzyme activities under Mediterranean conditions

2006 ◽  
Vol 38 (8) ◽  
pp. 2125-2134 ◽  
Author(s):  
R. Zornoza ◽  
C. Guerrero ◽  
J. Mataix-Solera ◽  
V. Arcenegui ◽  
F. García-Orenes ◽  
...  
Keyword(s):  
Treatment Effect ◽  
Enzyme Activities ◽  
Soil Enzyme ◽  
Soil Enzyme Activities ◽  
Air Drying ◽  
Drying And Rewetting ◽  
Pre Treatment ◽  
Mediterranean Conditions

Effect of microwave and air-borne ultrasound-assisted air drying on drying kinetics and phytochemical properties of broccoli floret

2019 ◽  
Vol 38 (13) ◽  
pp. 1733-1748 ◽  
Author(s):  
Ye Cao ◽  
Yang Tao ◽  
Xuhao Zhu ◽  
Yongbin Han ◽  
Dandan Li ◽  
...  
Keyword(s):  
Drying Kinetics ◽  
Air Drying ◽  
Ultrasound Assisted

scholarly journals Advanced Extraction of Lipids with DHA from Isochrysis galbana with Enzymatic Pre-Treatment Combined with Pressurized Liquids and Ultrasound Assisted Extractions

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3310
Author(s):  
María Señoráns ◽  
Natalia Castejón ◽  
Francisco Javier Señoráns
Keyword(s):  
Fatty Acids ◽  
Isochrysis Galbana ◽  
Extraction Methods ◽  
Polar Lipids ◽  
Omega 3 ◽  
Extraction Techniques ◽  
Advanced Technique ◽  
Microalgal Biomass ◽  
Ultrasound Assisted ◽  
Pre Treatment

Microalgal biomass is a sustainable and valuable source of lipids with omega-3 fatty acids. The efficient extraction of lipids from microalgae requires fast and alternative extraction methods, frequently combined with biomass pre-treatment by different procedures. In this work, Pressurized liquid extraction (PLE) was optimized and compared with traditional lipid extraction methods, Folch and Bligh and Dyer, and with a new Ultrasound Assisted Extraction (UAE) method for lipids from microalgae Isochrysis galbana. To further optimize PLE and UAE, enzymatic pre-treatment of microalga Isochrysis galbana was studied with commercial enzymes Viscozyme and Celluclast. No significant differences were found for lipid yields among different extraction techniques used. However, advanced extraction techniques with or without pre-treatment are a green, fast, and toxic solvent free alternative to traditional techniques. Lipid composition of Isochrysis was determined by HPLC-ELSD and included neutral and polar lipids, showing that each fraction comprised different contents in omega-3 polyunsaturated fatty acids (PUFA). The highest polar lipids content was achieved with UAE (50 °C and 15 min) and PLE (100 °C) techniques. Moreover, the highest omega-3 PUFA (33.2%), eicosapentaenoic acid (EPA) (3.3%) and docosahexaenoic acid (DHA) (12.0%) contents were achieved with the advanced technique UAE, showing the optimized method as a practical alternative to produce valuable lipids for food and nutraceutical applications.

scholarly journals Ultrasound Assisted Osmotic Dehydration as Pretreatment for Hot-air Drying of Carrot

2014 ◽  
Vol 20 (1) ◽  
pp. 31-41 ◽  
Author(s):  
Yunhong Liu ◽  
Jianye Wu ◽  
Cuijuan Chong ◽  
Shuai Miao
Keyword(s):  
Osmotic Dehydration ◽  
Hot Air Drying ◽  
Air Drying ◽  
Hot Air ◽  
Ultrasound Assisted

Ultrasound as Pre-Treatment for Drying of Genipap (Genipa americana L.)

2012 ◽  
Vol 8 (3) ◽  
Author(s):  
Fabiano An. Fernandes ◽  
Sueli Rodrigues
Keyword(s):  
Ultrasonic Treatment ◽  
Sugar Content ◽  
Drying Process ◽  
Drying Time ◽  
Air Drying ◽  
Tropical Fruit ◽  
Dried Fruits ◽  
Water Diffusivity ◽  
Pre Treatment

Abstract Genipap (Genipa americana L.) is an exotic tropical fruit that can be used in production of sweets, liqueurs, and several other foodstuffs. In this work the effect of ultrasonic pre-treatment prior to air-drying on dehydration of genipap was investigated. The study allowed estimating the water diffusivity in the air-drying process for genipaps submitted to ultrasound. Results showed that the water diffusivity increased after application of ultrasound and that the overall drying time was reduced by 28.2%. During the ultrasonic treatment, genipaps lost sugar showing that the ultrasonic pre-treatment can be a valuable process to produce dried fruits with lower sugar content.

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