Effect of different extraction techniques and drying conditions for the assay of isoflavone from Harit soya seeds

2021 ◽  
Author(s):  
Deepika Kathuria ◽  
Anju K Dhiman ◽  
Surekha Attri
Keyword(s):  
Extraction Techniques ◽  
Drying Conditions

scholarly journals Physical Properties and Total Phenolic Content by Different Drying and Extraction Techniques of Clinacanthus Nutans Leaves

2018 ◽  
Vol 7 (2.29) ◽  
pp. 1126
Author(s):  
Yvonne Melse Laurence ◽  
Mohammad Shaheen Khan ◽  
Mohd Sani Sarjadi
Keyword(s):  
Physical Properties ◽  
Total Phenolic Content ◽  
Phenolic Content ◽  
Soxhlet Extraction ◽  
Extraction Methods ◽  
Total Phenolic ◽  
Extraction Techniques ◽  
Vacuum Oven ◽  
Clinacanthus Nutans ◽  
Drying Conditions

This report presents a series of different drying condition and extraction methods on Clinacanthus nutans leaves. C. nutans leaves were dried using three different drying conditions: oven (40°C, 60°C and 80°C), vacuum oven and air drying. Then, the physical properties of dried leaves obtained were analyzed in terms of the moisture content and water activity. Thus, the series of extraction was performed using three different extraction techniques: soxhlet, maceration and ultrasound-assisted solvent extraction respectively. Finally, the total phenolic content of each extracts were determined with the Folin-Ciocalteu method. The results showed that the choice of drying method and extraction technique influenced the phenolic compound yield of C. nutans extract. Excellent performance of the combination of drying C. nutans leaves using laboratory oven at 60°C and soxhlet extraction obtained the highest total phenolic content yield at 65.92 ± 2.19 mg GAE/g.  

scholarly journals Effects of different drying conditions on curcumin concentration in turmeric

2018 ◽  
Author(s):  
George Srzednicki ◽  
Qixin Li ◽  
Robert H Driscoll
Keyword(s):  
Pharmaceutical Industry ◽  
Air Temperature ◽  
Extraction Efficiency ◽  
Curcuma Longa ◽  
Soxhlet Extraction ◽  
Extraction Techniques ◽  
Air Temperatures ◽  
Pre Treatment ◽  
Drying Conditions ◽  
Natural Phenols

Turmeric (Curcuma longa), belongs to Zingiberaceae family. The rhizomes contain bioactive compounds of the curcuminoids group (natural phenols). They are used in food and pharmaceutical industry. The aim of this research was to acquire dried turmeric with high total curcumin content. In this study, optimum turmeric drying conditions and new extraction techniques were explored. Fresh turmeric samples were subjected to constant vs changing drying air temperatures and pre-treatment (blanching). Changing drying air temperature and use of non-blanched turmeric slices resulted in the highest concentration of curcumin. Ultrasonic extraction instead of soxhlet extraction improved the extraction efficiency and decreased extraction time. Keywords: Turmeric, Curcumin; Drying; Blanching; Extraction

The Evolution of Lead Extraction

2009 ◽  
Vol 5 (1) ◽  
pp. 32
Author(s):  
Melanie Maytin ◽  
Laurence M Epstein ◽  
◽  
Keyword(s):  
Natural Selection ◽  
Lead Extraction ◽  
Significant Morbidity ◽  
Extraction Techniques ◽  
Extraction Technology ◽  
Device Management ◽  
Future Developments ◽  
The Past ◽  
New Methods ◽  
Life Threatening

Prior to the introduction of successful intravascular countertraction techniques, options for lead extraction were limited and dedicated tools were non-existent. The significant morbidity and mortality associated with these early extraction techniques limited their application to life-threatening situations such as infection and sepsis. The past 30 years have witnessed significant advances in lead extraction technology, resulting in safer and more efficacious techniques and tools. This evolution occurred out of necessity, similar to the pressure of natural selection weeding out the ineffective and highly morbid techniques while fostering the development of safe, successful and more simple methods. Future developments in lead extraction are likely to focus on new tools that will allow us to provide comprehensive device management and the design of new leads conceived to facilitate future extraction. With the development of these new methods and novel tools, the technique of lead extraction will continue to require operators that are well versed in several methods of extraction. Garnering new skills while remembering the lessons of the past will enable extraction technologies to advance without repeating previous mistakes.

Data Extraction Techniques for Spreadsheet Records

2007 ◽  
Vol 2 (1) ◽  
pp. 119-129 ◽  
Author(s):  
Mark G. Simkin
Keyword(s):  
Data Extraction ◽  
Stratified Sampling ◽  
Specific Information ◽  
Extraction Techniques ◽  
Filtering Techniques

Abstract Many accounting applications use spreadsheets as repositories of accounting records, and a common requirement is the need to extract specific information from them. This paper describes a number of techniques that accountants can use to perform such tasks directly using common spreadsheet tools. These techniques include (1) simple and advanced filtering techniques, (2) database functions, (3) methods for both simple and stratified sampling, and, (4) tools for finding duplicate or unmatched records.

Heavy metals pollution potentials in the National Iron Ore Mining Company, Itakpe

2020 ◽  
Vol 3 (2) ◽  
Author(s):  
Cyril Ocheri ◽  
A. D. Omah ◽  
C. N. Mbah ◽  
R. E. Njoku ◽  
N. A. Urama ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Sea Level ◽  
Toxic Elements ◽  
Iron Ore ◽  
Pollution Potential ◽  
Extraction Techniques ◽  
Mining Company ◽  
Mining Sites ◽  
Metals Pollution ◽  
Heavy Metals Pollution

Heavy metals pollution potential in National Iron Ore Mining Company, Itakpe was investigated. Two mining sites located at the east mining pits such as M3O, which is 370 m above sea level and M2O, which is 350 m above sea level were studied.  Sequential extraction techniques was utilised to examine the distribution effect of the heavy metals pollution potential on the environment. Twelve representative (six-soil, two-sediment, two-plant and two-water) samples were collected, pre-treated and prepared for this study. The atomic absorption spectrometer was used to analyse the concentration of the metals after the sequential and single-stage extractions were determined. Results showed that Chromium, Arsenic, Cadmium and Copper are more bioavailable in the study area than Lead and Iron. This findings indicate that human, animals and plants are exposed to toxic elements (metals and metalloids).

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