scholarly journals MANUFACTURE OF TOMATOES HALVING PROTOTYPE FOR NATURAL DRYING PROCESS

2021 ◽  
Vol 0 (0) ◽  
pp. 0-0
Author(s):  
Wael El Magd
Keyword(s):  
Drying Process ◽  
Natural Drying

scholarly journals Prospects for optimizing the drying process of Virginia 202 tobacco leaves

2021 ◽  
Vol 17 (1) ◽  
pp. 70-77
Author(s):  
E. Е. Ulyanchenko ◽  
N. N. Vinevskaya
Keyword(s):  
Quality Indicators ◽  
Raw Materials ◽  
Control Sample ◽  
Physical Method ◽  
Cost Effective ◽  
High Energy ◽  
Drying Process ◽  
Drying Time ◽  
Apply Physical ◽  
Natural Drying

Cultivation and use of Virginia 202 broadleaf skeletal variety for the production of smoking tobacco has broad prospects. Problems of post-harvest processing of large leaves with a massive midrib consist in high energy costs with an artificial drying method or the provision of facilities for long-term natural drying. The aim of the research is to apply physical method of cutting the leaf midrib to intensify drying and to determine the effect of this technique on the quality indicators of raw materials. It has been found that the technique of cutting the midrib on the Virginia 202 variety contributes to a significant optimization of the drying process without reducing the quality of raw materials. The drying time of leaves with the combined method is reduced by 2,8 times, with the natural method – by 2,3 times, and the quality indicators of raw materials improve. Commercial quality is characterized by the yield of 1 commercial grade, for combined drying the yield of 1 grade has increased in comparison with the control sample by 27% and amounted to 86,5%, with natural drying – the increase in yield is 4%. Cutting the midrib increases the fiber yield by 3–5% and contributes to an increase in the volumetric-elastic properties of the fiber, providing an economical consumption of raw materials for the production of smoking articles, the consumption is 676,8–753,8 g/1000 pcs. The gustatory quality improves, raw materials with a cut midrib have optimal values of the ratio of carbohydrate-protein balance in the range of 1,08–1,5, the strength is preserved due to the lower consumption of nicotine during the shorter drying period, in comparison with drying the leaf without cutting the midrib. Cutting the midrib in Virginia 202 is cost effective.

Field monitoring of ripening of dredged material at three sites in the Netherlands (preliminary results)

1998 ◽  
Vol 37 (6-7) ◽  
pp. 371-378 ◽  
Author(s):  
W. de Haan ◽  
K. J. Otten ◽  
J. J. M. Heynen ◽  
H. Folkerts ◽  
M. Elsman
Keyword(s):  
Mineral Oil ◽  
Monitoring Programme ◽  
Dredged Material ◽  
Drying Process ◽  
Ripening Process ◽  
Calibration And Validation ◽  
Input And Output ◽  
Clayey Material ◽  
Leaching Characteristics ◽  
Natural Drying

Ripening of dredged material in a deposit is a natural ‘drying’ process by which raw dredged material transforms into soil. The aim of ripening is to obtain soil which complies with environmental legislations and geotechnical specifications for application in earthworks (e.g. dikes, noise reduction banks, landfill covers). The paper deals with the background and contents of a monitoring programme on the ripening behaviour of clayey, peaty, and sandy dredged material, and changes in chemical composition, especially of organic compouds, and leaching characteristics during ripening. The main objectives of the monitoring programme are (1) to develop a management system for the ripening process, (2) to quantify the input and output volumes of dredged material, and (3) to develop guidelines for the design of (transit) deposits. The results of the monitoring programme will also be used for calibration and validation of a computer model on ripening. Prelimanary results on ripening of clayey material and biodegration of PAH and mineral oil are presented. On the basis of these results it is expected that large volumes of slightly to moderately contaminated dredged material are suitable for beneficial use after ripening.

scholarly journals Release Behaviors of Arsenic and Heavy Metals from Arsenic Sulfide Sludge during Simulated Storage

Minerals ◽  
2019 ◽  
Vol 9 (2) ◽  
pp. 130 ◽  
Author(s):  
Liwei Yao ◽  
Xiaobo Min ◽  
Yong Ke ◽  
Yunyan Wang ◽  
Yanjie Liang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Preventive Measures ◽  
Oxidation Process ◽  
Ferrous Metal ◽  
Environmental Risks ◽  
Arsenic Sulfide ◽  
Drying Process ◽  
Secondary Pollution ◽  
Release Ratio ◽  
Natural Drying

Non-ferrous metal smelting enterprises produce hundreds of thousands of tons of arsenic sulfide sludge (ASS) each year in China. Most of the ASS are stored at the companies without enough preventive measures. During the storage and natural drying process, arsenic sulfide is easily oxidized, thereby causing secondary pollution and increasing environmental risks. In this paper, experiments of simulated storage were used to study the release characteristics of heavy metals. During the simulated storage, the release concentrations of As, Pb, and Cd increased rapidly at first and then slowly. Although the total amount of arsenic released was the largest, the release ratio was in the order of Cd > Pb > As. The effects of different atmospheres and conditions on the release of arsenic and heavy metals were explored. The more the H2SO4 in the sludge, the higher the release concentration, and the addition of an appropriate amount of Ca(OH)2 is beneficial for reducing the release of heavy metals. Finally, SEM, XRD and TG-DTG techniques were carried out to confirm that the release of heavy metals was caused by the oxidation process resulting from the residual H2SO4 in the ASS and the air.

scholarly journals РАЗРАБОТКА И ИСПЫТАНИЕ СОЛНЕЧНОЙ УСТАНОВКИ С ПОЛИКАРБОНАТНЫМ ПОКРЫТИЕМ ДЛЯ СУШКИ ПРОДУКТОВ СЕЛЬСКОГО ХОЗЯЙСТВА

World Science ◽  
2021 ◽  
Author(s):  
Ketevan Archvadze ◽  
Ilia Chachava ◽  
Ketevan Papava ◽  
Nanuli Khotenashvili ◽  
Riva Liparteliani ◽  
...  
Keyword(s):  
Vitamin C ◽  
Air Temperature ◽  
Laboratory Analysis ◽  
Agricultural Products ◽  
Solar Drying ◽  
Drying Process ◽  
Drying Time ◽  
Drying System ◽  
Natural Drying

The proposed solar drying system significantly reduces the drying time and improves the quality of the product, including the preservation of vitamins. When drying rosehip, a laboratory analysis for vitamin "C" showed that 28% of this vitamin is destroyed during natural drying, and 17% when using a solar dryer.The drying speed increases by 2.5 - 4 times compared to traditional outdoor drying.In the proposed installation, you can dry different agricultural products, you can change the coating of the solar drying unit. In S/D, the air temperature is higher than in the environment from about 13 to 32 degrees Celsius, depending on weather conditions.The drying process in the S/D apparatus allows you to ensure the purity of the products. S/D is covered and during the drying process the product is not contaminated with dust and rain, by influence of dew, is not damaged by birds, insects or wasps.This device is convenient for transportation, during the day it can be moved and rotated to align to the sun.The proposed solar dryer is easy to manufacture and can be widely used in large and small farms, private and subsidiary farms.

scholarly journals Dynamic Changes in Endophytic Microorganisms and Metabolites During Natural Drying of Licorice

2021 ◽  
Vol 12 ◽  
Author(s):  
Ting Li ◽  
Guangxi Ren ◽  
Dan Jiang ◽  
Chunsheng Liu
Keyword(s):  
Scientific Basis ◽  
Shannon Index ◽  
Drying Method ◽  
Drying Process ◽  
Dynamic Changes ◽  
Endophytic Microorganisms ◽  
Relationship Of ◽  
The Relationship ◽  
Natural Drying

The method of drying licorice is an important factor affecting the quality of the final product. To determine the best processing method of licorice postharvest, we investigated the interaction of increasing aridity between the endophytic microorganisms and the accumulation of metabolites. Samples from the roots of licorice growing along an aridity gradient during the natural drying process were collected, and the metabolic components, the content of the main active substances and the dynamic changes of the endophytic microbial community were assessed. The glycyrrhizic acid and liquiritin contents decreased slightly or remained flat during natural drying, whereas those of liquiritigenin and isoliquiritigenin increased slightly. Moreover, the Shannon index of endophytic microbial diversity of licorice was the highest in the fresh period and showed a downward trend during the drying process. When the licorice were fresh, Cladosporiaceae and Burkholderiaceae were the dominant family present, but after drying, Nectriaceae and Enterobacteriaceae were the dominant families. A similar trend was also found in which the differential metabolites of licorice were reduced during natural drying. Furthermore, correlation analysis between dominant families and differential metabolites showed that there was a correlation between the two. Therefore, fresh processing is an effective drying method to ensure the quality of licorice. This study revealed the relationship of endophytic microbiota and changes in the licorice metabolites during different stages of drying, which provided a scientific basis for the drying method of licorice.

scholarly journals Grape Dryer Using Infrared Radiation : An Experimental Study

2014 ◽  
Vol 8 ◽  
pp. 18-22 ◽  
Author(s):  
Joshi Snehal Santosh ◽  
Joshi Santosh Vishnu
Keyword(s):  
Experimental Study ◽  
Low Temperature ◽  
Product Quality ◽  
Experimental Analysis ◽  
Infrared Radiation ◽  
Drying Process ◽  
Drying Time ◽  
Floor Space ◽  
Natural Drying

Preserving fruits by drying is an important operation continued from prehistoric period. Infrared radiation can be used for grape drying purpose. It is unique process and distinctly different from conventional or natural drying. The infrared radiations accelerate drying process with a better control to achieve uniform drying, reduced drying time and ultimately improved product quality. Besides, it requires less floor space and compact system are the additional advantages. In this paper existing natural grape drying process is modified with suitable enclosure containing IR radiators and allied system. Appropriate sensors are used to measure parameters like humidity, temperature and weight of sample. Experimental analysis done with the help of dryer proves the uniform drying of the grapes with the help of infrared radiation. The original color of grapes is better conserved as the drying takes place at low temperature. The drying time is reduced to a significant level as compared to natural drying process.  DOI: http://dx.doi.org/10.3126/jfstn.v8i0.11722 J. Food Sci. Technol. Nepal, Vol. 8 (18-22), 2013

scholarly journals Human specimen plastination by using synthetic plastic polymer

2014 ◽  
Vol 1 (4) ◽  
pp. 66-68
Author(s):  
J Chaudhary ◽  
K Supriya ◽  
S Singh ◽  
SK Shah
Keyword(s):  
Museum Specimen ◽  
Educational Tool ◽  
Drying Process ◽  
Medical Sciences ◽  
Human Specimen ◽  
Formalin Fixed ◽  
Preservation Technique ◽  
Natural Drying

Plastination is a preservation technique which keeps human specimen in natural, dry, hard and odour less state. This is introduced by Dr. Gunther Van Hagen. Recently, anatomists are doing research in plastination to give durable and better human specimen for demonstration tool, museum specimen without formalin irritation. In the department of anatomy, plastic polymer and chloroform is used in plastination. The formalin fixed specimens are dehydrated in acetone. Then transferred to polythene polymer mixer for impregnation and harden in natural drying process. At the end dry, hard and odour less specimens are obtained. In our experience plastination shows the plastinates are natural, dry, hard and odour less state can be an excellent medical educational tool. DOI: http://dx.doi.org/10.3126/jucms.v1i4.9580 Journal of Universal College of Medical Sciences (2013) Vol.1 No.04: 66-68

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