The effect of ultrasound-assisted vacuum drying on the drying rate and quality of red peppers

2018 ◽  
Vol 132 (2) ◽  
pp. 1131-1143 ◽  
Author(s):  
Zeynep Hazal Tekin ◽  
Mehmet Baslar
Keyword(s):  
Vacuum Drying ◽  
Drying Rate ◽  
Ultrasound Assisted ◽  
Red Peppers

Ultrasound-assisted osmotic process on quality of microwave vacuum drying sweet potato

2018 ◽  
Vol 36 (11) ◽  
pp. 1367-1379 ◽  
Author(s):  
Camel Lagnika ◽  
Jiapeng Huang ◽  
Ning Jiang ◽  
Dajing Li ◽  
Chunquan Liu ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Vacuum Drying ◽  
Microwave Vacuum Drying ◽  
Ultrasound Assisted

scholarly journals Effects of different drying rates on the physiological quality of Coffea canephora Pierre seeds

2005 ◽  
Vol 17 (2) ◽  
pp. 199-205 ◽  
Author(s):  
Sttela Dellyzete Veiga Franco da Rosa ◽  
Delacyr da Silva Brandão Júnior ◽  
Édila Vilela de Resende Von Pinho ◽  
André Delly Veiga ◽  
Luiz Hildebrando de Castro e Silva
Keyword(s):  
Water Content ◽  
Storage Temperature ◽  
Removal Rate ◽  
Coffea Canephora ◽  
Development Stage ◽  
Seed Vigor ◽  
Drying Rate ◽  
Physiological Quality ◽  
Drying Rates

Desiccation tolerance in seeds depends on the species, development stage and drying conditions, especially the water removal rate. Coffea seeds are considered of intermediate performance, because they tolerate relative dehydration compared to orthodox seeds and are sensitive to low temperatures. The objective of this study was to verify the effect of different drying rates on the viability and storability of Coffea canephora seeds. A complete randomized experimental design was used, in a factorial 3 x 5 x 2 design, with three drying rates (fast, intermediate and slow), five final mean water contents after drying (51, 42, 33, 22 and 15 %) and two storage temperatures (10 and 20°C). The germination and seed vigor assessments, using radicle protrusion, cotyledon leaf opening, seedling emergence and emergence speed index, were performed shortly after drying and after two and four months storage. It was observed that with reduction in the water content there was reduction in the germination values and seed vigor, for all the drying rates. The greatest reductions in physiological quality occurred when the seeds were dried quickly and the best results were obtained at the intermediate drying rate. There was an effect of drying rate and storage temperature on the physiological quality of the seeds, and lower germination and vigor values were observed in seeds with lower water content stored at 20°C. C. canephora seeds were tolerant to desiccation down to 15 % water content and can be stored for four months at 10°C. A temperature of 20ºC can be used to store C. canephora seeds, as long as the water content is not reduced to values below 22 % water content.

The Effect of Microwave Vacuum Drying on the Quality of Tiegun yam

2012 ◽  
Author(s):  
Zhihuai Mao ◽  
Dong Li ◽  
Guangyue Ren ◽  
Xiaoyan Du ◽  
Wenxue Zhu
Keyword(s):  
Vacuum Drying ◽  
Microwave Vacuum Drying

Effect of Ultrasound-Assisted Dough Fermentation on the Quality of Dough and Steamed Bread with 50% Sweet Potato Pulp

2021 ◽  
Author(s):  
Min Zhang ◽  
Wenjing Suo ◽  
Yuxin Deng ◽  
Lijun Jiang ◽  
Mingming Qi ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Potato Pulp ◽  
Steamed Bread ◽  
Ultrasound Assisted

Pulsed vacuum drying (PVD) technology improves drying efficiency and quality of Poria cubes

2017 ◽  
Vol 36 (8) ◽  
pp. 908-921 ◽  
Author(s):  
Weipeng Zhang ◽  
Zhongli Pan ◽  
Hongwei Xiao ◽  
Zhian Zheng ◽  
Chang Chen ◽  
...  
Keyword(s):  
Vacuum Drying ◽  
Drying Efficiency

scholarly journals Small Scale Investigation of the Potential of Solar Drying of Water Hyacinth (Eichhornia Crassipes) as A Control Measure in Makurdi

2015 ◽  
Vol 6 ◽  
pp. 129-138
Author(s):  
A O Edeoja ◽  
A O Owolabi
Keyword(s):  
Water Hyacinth ◽  
Mixed Mode ◽  
Eichhornia Crassipes ◽  
Control Measure ◽  
Small Scale ◽  
Drying Rate ◽  
Aquatic Weed ◽  
Solar Drying ◽  
Water Weed

Water hyacinth is the world's worst water weed that is responsible for many environmental and economical problems. Nigerian fresh waters have been infested with this aquatic weed. In this work, a Natural Convection Mixed Mode Solar Dryer for drying water hyacinth to about 10% of its moisture content was constructed and tested as a component of controlling its infestation of the River Benue. The performance of the dryer was compared with the traditional open–air sun drying as the control for drying water hyacinth in Makurdi, Benue State Nigeria. The water hyacinth was dried for 8 hours each day for 4 days. 500g of water hyacinth on wet basis was dehydrated by about 437g on dry basis in 20 hours in the dryer while the control required 32 hours. The dryer was found to be technically more suitable for drying water hyacinth both in terms of the drying rate and quality of the dried product.

Drying Rate Modeling Through Variable Diffusivity Approach for Vacuum Drying of Onion Slices

2010 ◽  
Author(s):  
JAYEETA MITRA ◽  
S L SHRIVASTAVA ◽  
SRINIVASA RAO PAVULURI
Keyword(s):  
Vacuum Drying ◽  
Drying Rate ◽  
Variable Diffusivity

The comparison of ultrasound-assisted thawing, air thawing and water immersion thawing on the quality of slow/fast freezing bighead carp (Aristichthys nobilis) fillets

2020 ◽  
Vol 320 ◽  
pp. 126614 ◽  
Author(s):  
Dongni Li ◽  
Huanhuan Zhao ◽  
Aliyu Idris Muhammad ◽  
Luyao Song ◽  
Mingming Guo ◽  
...  
Keyword(s):  
Water Immersion ◽  
Bighead Carp ◽  
Aristichthys Nobilis ◽  
Ultrasound Assisted ◽  
Fast Freezing

scholarly journals Effect of Drying Methods on Physicochemical Parameters of Different Red Beetroots (Beta vulgaris L.) Species

2019 ◽  
Author(s):  
Dóra Székely ◽  
Klaudia Vidák ◽  
Diána Furulyás ◽  
Ákos Ribárszki ◽  
Mónika Stéger-Máté
Keyword(s):  
Physicochemical Parameters ◽  
Color Change ◽  
Vacuum Drying ◽  
Drying Methods ◽  
Total Polyphenol ◽  
Microwave Vacuum Drying ◽  
Hot Air ◽  
Vacuum Method ◽  
Drying Technology

The aim of this work was to study the influence of atmospheric, vacuum and microwave vacuum drying methods on the quality of dried beetroots. Three different red beetroot species ('Alto F1', 'Cylindra', 'Detroit') were chosen in this study. The microwave vacuum method reduced the total time of drying and decreased the shrinkage compared to the other drying methods. The quality of the dehydrated material was described by its color change, antioxidant capacity, total polyphenol, betacyanin, betaxanthin and each phenolic acids content. The attempts were made to suggest the microwave vacuum method for red beetroot samples as a gentle drying technology to reach a special texture that is favoured by costumers. During the experiments relevant differences could be observed between the investigated beetroot species on the effect of different drying methods. According to the examined parameters the 'Cylindra' species proved the most appropriate beetroot variety for microwave vacuum drying. Based on the results, the combined methods with hot-air at 60 °C followed by microwave vacuum finish drying was the most suitable assay to preserve the investigated parameters in the highest amount.

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