scholarly journals Variations in the Antioxidant Profile of Aegle marmoles with Drying and Solvent of Extraction

2019 ◽  
Vol 9 (3) ◽  
pp. 22-25
Author(s):  
Madhava Reddy Ch ◽  
Ganesh Kumar Y ◽  
Pranitha D ◽  
Phaneendra Pavan D
Keyword(s):  
Antioxidant Activity ◽  
Chemical Constituents ◽  
International Markets ◽  
Crude Drug ◽  
Significant Step ◽  
Massive Scale ◽  
Crude Drugs ◽  
Post Harvesting ◽  
Determining Factor

There are various processes in the crude drug processing which affects the quality of the drug in many ways. The quality of the crude drug is the determining factor that is responsible for the imports and exports of the drug to international markets. Drying is a significant step in those post-harvesting stages of the crude drug. This alone determines the microorganism contamination in the drug. Other post-harvesting methods that affect the final extract of the crude drug is the selection f solvent for extraction. The solvent selection is to be based on the parameters like the partition coefficient, the solubility of the chemical constituents. Aegle marmoles is well known for its antioxidant activity and other potential activities, and the exports of the drug were in more massive scale. To ensure the quality of the drug, the post-harvest technology of the drug was essential to determine the quality of the crude drugs. The leaves were dried in different methods and extracted with different solvents, and the investigations were done for the antioxidant activity. The results showed that the extract of the shade dried drug and the methanol solvent extracted drug showed a better phenol content and also better antioxidant activity.

scholarly journals Evaluation of Physiochemical Screening and Standardization on the Root of Rotula aquatica Lour.

2013 ◽  
Vol 1 (01) ◽  
pp. 63-67
Author(s):  
Abhishek B. ◽  
Avinash Saini
Keyword(s):  
Moisture Content ◽  
Water Soluble ◽  
Isolation And Identification ◽  
Crude Drug ◽  
Successive Extraction ◽  
The Family ◽  
Microscopic Studies ◽  
Crude Drugs ◽  
Chloroform Methanol

The root of Rotula aquatica is also called as pashanbed, belonging to the family Borogenaceae. It is widely distributed in India from kumaun to Assam and western to southern India.The medicinal values of plant lie in their component phytochemicals such as alkaloids, flavonoids, phenolic compounds and other nutrients like as amino acid, proteins, which produce a definite physiological action on the human body. The proximate values such as moisture content, ash value, extractive value, were carried out. The dried roots powder was subjected to successive extraction with different solvents like petroleum ether, benzene, chloroform, methanol, ethanol and water. Macroscopic as well as microscopic studies of any crude drug are the primary steps to establish its botanical quality control before going to other studies. Hence Standardization of crude drug plays a very important role in identifying the purity and quality of crude drugs. The present investigation reveals Standardization which include Moisture Content, Total ash, Acid insoluble ash, Water soluble ash, Water soluble Extractive value, Alcohol soluble Extractive value, Phytochemical screening, and further isolation and identification of Phytoconstituents.

Variation of the antioxidant activity with the extraction method and solvent selection

2020 ◽  
Vol 10 (4) ◽  
pp. 39-42
Author(s):  
Sravan Kumar P ◽  
Akila CR ◽  
Vinaya B ◽  
Dinesh Babu J
Keyword(s):  
Antioxidant Activity ◽  
Extraction Method ◽  
Chemical Constituents ◽  
Extraction Process ◽  
Vital Role ◽  
Distilled Water ◽  
Polar Solvents ◽  
Extraction Solvent ◽  
Significant Step ◽  
Guava Leaves

Extraction is a significant step in the processing of the crude drug to get its chemical constituents out and keep them of high and exportable quality. The plants have various chemical constituents that are responsible for various activities in which antioxidant activity is the important one. There is another step that is crucial in the extraction process that is the selection of the suitable for extraction. Various solvents are used for extraction. They too range from the highly non-polar solvents like benzene and chloroform to the highly polar solvents like Ethanol and distilled water. So, in this work, the focus has been put on to find the effect of the extraction method and the extraction solvent on the antioxidant profile of the guava leaves. The extracts of the solvent Water in the method of ultrasound showed the highest inhibition of the free radicals and the least was with the extracts of the pet ether and using soxhlation. This is indicative that the method of extraction is critical, and the solvent of extraction played a vital role in the content of chemical constituents and the pharmacological activity too. The results showed that the ultrasound method was beneficial in extracting the soft drugs like leaves, and the distilled water was effective in extracting the chemicals from the guava leaves.

Comparative Pharmacognostic, Physicochemical and Phytochemical Studies of Different Samples of Plumbago zeylanica L. Roots

2017 ◽  
Vol 9 (06) ◽  
Author(s):  
Neha Jain ◽  
Mohan Lal Kori
Keyword(s):  
Phytochemical Analysis ◽  
Local Market ◽  
Herbal Drugs ◽  
Disease Treatment ◽  
Organoleptic Evaluation ◽  
Plumbago Zeylanica ◽  
Qualitative And Quantitative ◽  
Crude Drugs ◽  
Phytochemical Studies

The objective of the present study is to evaluate the quality of the marketed and self collected samples of Plumbago zeylanica L. roots on the standardization parameters. This study is planned mainly to confirm changes with quality of drug. Now a day’s more demand of herbal drugs for disease treatment, lack of knowledge of proper methodology and availability are promoting the practices of adulteration and substitution. Thus, the standardization of the plant crude drugs is necessary to maintain their therapeutic efficacy. Comparative studies were carried out to evaluate the standards of P. zeylanica L. with emphasis on organoleptic evaluation, physicochemical and phytochemical analysis. Samples were procured from local market and self collected to determine the qualitative and quantitative variations. The result indicates that self collected sample showed significant results with comparison to marketed sample.

Impact of Organizational Culture and Teacher Performance on Quality of Learning Processes

2020 ◽  
Vol 4 (2) ◽  
pp. 95-110
Author(s):  
Buyung Syukron ◽  
Andi Thahir ◽  
Tin Amalia Fitri ◽  
Asep Rohman
Keyword(s):  
Organizational Culture ◽  
Elementary Schools ◽  
Learning Process ◽  
Teacher Performance ◽  
Work Culture ◽  
Timely Manner ◽  
Quality Learning ◽  
The City ◽  
Determining Factor

The learning process in madrasas (Islamic-based elementary schools) is seen as being able to contribute to instilling values and norms in students following Islamic teachings. The issue of organizational culture and teacher performance also becomes a determining factor in creating a quality learning process. In this research, the aim is to determine: 1) the effect of organizational culture on the quality of the learn-ing process; 2) the effect of teacher performance on the quality of the learning process; and 3) the influ-ence of organizational culture on teacher performance. Respondents in this study were all class teachers from three madrasas as a sample representing all public madrasas in the city of Bandar Lampung, Indo-nesia. The results obtained indicate that the variables of organizational culture and the quality of the learning process have an influence, with R squared of 0.67 or 67%, which is classified as moderate. This shows that madrassas have implemented predetermined work culture values, namely: a) integrity, the harmony between correct thoughts, words, and deeds; b) professionalism, working in a disciplined, competent, and timely manner with the best results; c) innovation, perfecting existing and creating new and improved techniques and ideas; d) responsibility, working thoroughly and with thought for the con-sequences; and e) being exemplary, setting a good example for others.

Features of Ensuring Economic and Food Security in the Context of Globalization

2020 ◽  
pp. 15-19
Author(s):  
S.U. Nuraliev ◽  
Keyword(s):  
Quality Of Life ◽  
Food Security ◽  
International Markets ◽  
Current Situation ◽  
Economic Resources ◽  
Competitive Advantages ◽  
State Control ◽  
Food Trade ◽  
Economic Goods

The article discusses issues of ensuring economic and food security of the country in terms of globalization, the peculiarities of state control and regulation of the economy and efficiency of the economic resources of society for the production of economic goods to meet public needs, increasing the level of income and quality of life of the population. The article focuses on assessing the current situation and analyzing foreign experience, studying the main issues of organizing commodity movement, solving problems of wholesale food trade, and improving the mechanism of state support in this area to realize Russia’s competitive advantages and opportunities in the domestic and international markets.

Synergistic Effect of Metagenome‐Derived Starch‐Degrading Enzymes on Quality of Functional Bread with Antioxidant Activity

2021 ◽  
pp. 2100098
Author(s):  
Seyedeh Fatemeh Sadeghian Motahar ◽  
Maryam Salami ◽  
Shohreh Ariaeenejad ◽  
Zahra Emam‐Djomeh ◽  
Atefeh Sheykhabdolahzadeh Mamaghani ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Synergistic Effect ◽  
Degrading Enzymes ◽  
Functional Bread

scholarly journals Geospatial Open Data Usage and Metadata Quality

2021 ◽  
Vol 10 (1) ◽  
pp. 30
Author(s):  
Alfonso Quarati ◽  
Monica De Martino ◽  
Sergio Rosim
Keyword(s):  
Spatial Information ◽  
Open Data ◽  
Poor Quality ◽  
Data Usage ◽  
Open Government Data ◽  
Metadata Quality ◽  
Geospatial Datasets ◽  
Government Data ◽  
Determining Factor

The Open Government Data portals (OGD), thanks to the presence of thousands of geo-referenced datasets, containing spatial information are of extreme interest for any analysis or process relating to the territory. For this to happen, users must be enabled to access these datasets and reuse them. An element often considered as hindering the full dissemination of OGD data is the quality of their metadata. Starting from an experimental investigation conducted on over 160,000 geospatial datasets belonging to six national and international OGD portals, this work has as its first objective to provide an overview of the usage of these portals measured in terms of datasets views and downloads. Furthermore, to assess the possible influence of the quality of the metadata on the use of geospatial datasets, an assessment of the metadata for each dataset was carried out, and the correlation between these two variables was measured. The results obtained showed a significant underutilization of geospatial datasets and a generally poor quality of their metadata. In addition, a weak correlation was found between the use and quality of the metadata, not such as to assert with certainty that the latter is a determining factor of the former.

scholarly journals Quality of Watermelon Juice Concentrated by Forward Osmosis and Conventional Processes

Processes ◽  
2020 ◽  
Vol 8 (12) ◽  
pp. 1568
Author(s):  
Rebecca R. Milczarek ◽  
Carl W. Olsen ◽  
Ivana Sedej
Keyword(s):  
Antioxidant Activity ◽  
Large Scale ◽  
Citrullus Lanatus ◽  
Forward Osmosis ◽  
Soluble Phenolics ◽  
Nutritional Components ◽  
Watermelon Juice ◽  
Juice Concentrate ◽  
And Storage

Watermelon (Citrullus lanatus) juice is known for its refreshing flavor, but its high perishability limits its availability throughout the year. Watermelon juice concentrate has extended shelf-life and lower transportation and storage costs, but the conventional thermal evaporation process for concentrating juice degrades the nutritional components and sensory quality of the product. Thus, in this work, a large-scale, non-thermal forward osmosis (FO) process was used to concentrate fresh watermelon juice up to 65°Brix. The FO concentrate was compared to thermal concentrate and fresh juices, and to commercially available refrigerated watermelon juices, in terms of lycopene and citrulline content, total soluble phenolics, antioxidant activity, and sensory properties. The FO concentrate had statistically similar (p < 0.05) levels of all the nutrients of interest except antioxidant activity, when compared to the thermal concentrate. The reconstituted FO concentrate maintained the same antioxidant activity as the raw source juice, which was 45% higher than that of the reconstituted thermal concentrate. Sensory results showed that reconstituted FO concentrate resulted in highly liked juice, and it outperformed the reconstituted thermal concentrate in the sensory hedonic rating. This work demonstrates the possibility to produce a high-quality watermelon juice concentrate by forward osmosis.

Sign in / Sign up

Export Citation Format

Share Document