scholarly journals Phytochemical study and determination of pharmacological activities of cherry shoots dry extract

2016 ◽  
Vol 0 (1 (1)) ◽  
pp. 40-45
Author(s):  
Larysa Lenchyk ◽  
Olga Shapoval ◽  
Viktoria Kyslychenko
Keyword(s):  
Pharmacological Activities ◽  
Phytochemical Study ◽  
Dry Extract

scholarly journals Determination of Flavonoids Compounds of Three Species and Different Harvesting Periods in Crataegi folium Based on LC-MS/MS

Molecules ◽  
2021 ◽  
Vol 26 (6) ◽  
pp. 1602
Author(s):  
Ya-Ping Guo ◽  
Hong Yang ◽  
Ya-Li Wang ◽  
Xiao-Xiang Chen ◽  
Ke Zhang ◽  
...  
Keyword(s):  
Quantitative Analysis ◽  
Qualitative Analysis ◽  
Quantitative Method ◽  
Total Content ◽  
Qualitative And Quantitative Analysis ◽  
Pharmacological Activities ◽  
Time Saving ◽  
Qualitative And Quantitative ◽  
First Time

Crataegi folium have been used as medicinal and food materials worldwide due to its pharmacological activities. Although the leaves of Crataegus songorica (CS), Crataegus altaica (CA) and Crataegus kansuensis (CK) have rich resources in Xinjiang, China, they can not provide insights into edible and medicinal aspects. Few reports are available on the qualitative and quantitative analysis of flavonoids compounds of their leaves. Therefore, it is necessary to develop efficient methods to determine qualitative and quantitative flavonoids compounds in leaves of CS, CA and CK. In the study, 28 unique compounds were identified in CS versus CK by qualitative analysis. The validated quantitative method was employed to determine the content of eight flavonoids of the leaves of CS, CA and CK within 6 min. The total content of eight flavonoids was 7.8–15.1 mg/g, 0.1–9.1 mg/g and 4.8–10.7 mg/g in the leaves of CS, CA and CK respectively. Besides, the best harvesting periods of the three species were from 17th to 26th September for CS, from 30th September to 15th October for CA and CK. The validated and time-saving method was successfully implemented for the analysis of the content of eight flavonoids compounds in CS, CA and CK for the first time.

The rapid determination of the total dry extract of wines

The Analyst ◽  
1974 ◽  
Vol 99 (1182) ◽  
pp. 537 ◽  
Author(s):  
P. J. Wagstaffe
Keyword(s):  
Rapid Determination ◽  
Dry Extract

The development of technology for obtaining a dry extract of oak bark

2021 ◽  
pp. 38-45
Author(s):  
N.I. Dubovskaya ◽  
M.S. Zolotareva ◽  
A.V. Panov ◽  
S.A. Kedik
Keyword(s):  
Quantitative Determination ◽  
Bark Extract ◽  
Dry Extract ◽  
Inflammatory Agent ◽  
Anti Inflammatory

The article presents the development of a technology for obtaining a dry extract of oak bark and the quantitative determination of tannins in it. Oak bark extract is used medicinally as a local anti-inflammatory agent. The development of a technology for obtaining a dry extract will provide more opportunities for its use.

scholarly journals Phytochemical Study and Antibacterial and Antibiotic Modulation Activity of Punica granatum (Pomegranate) Leaves

Scientifica ◽  
2020 ◽  
Vol 2020 ◽  
pp. 1-7
Author(s):  
Amine Trabelsi ◽  
Mohamed Amine El Kaibi ◽  
Aïmen Abbassi ◽  
Amira Horchani ◽  
Leila Chekir-Ghedira ◽  
...  
Keyword(s):  
Antibacterial Properties ◽  
Punica Granatum ◽  
Diffusion Method ◽  
Bacterial Strains ◽  
Leaf Extracts ◽  
Phytochemical Study ◽  
E Coli ◽  
Microdilution Method ◽  
Resistant Strains

This study aimed to determine phytochemical contents, antibacterial properties, and antibiotic modulating potential of Punica granatum leaf extracts: hexane, chloroform, ethyl acetate, ethanol, and aqueous extracts as well as an extract enriched with total oligomer flavonoids (TOFs). The TOF extract contained the highest value of phenols and flavonoids. Rutin, luteolin, gallic acid, and ellagic acid were determined by HPLC analysis of this extract. The antibacterial activity was assayed by the disc diffusion method and microdilution method against Staphylococcus aureus and Escherichia coli standard ATCC strains and clinical isolates resistant strains. The TOF extract was the most active against all tested strains. The checkerboard method was used for the determination of synergy between two antibiotics (amoxicillin and cefotaxime) and P. granatum leaf extracts. The best synergistic interaction was found with TOF extract combined with amoxicillin for penicillin-resistant E. coli and penicillin-resistant S. aureus. These results can be assigned to tannins, flavonoids, and phenolic acids found in P. granatum leaf extracts. Pomegranate leaf extracts or active compounds isolated from these extracts could be used to fight the emergence and spread of resistant bacterial strains.

scholarly journals A PHARMACOGNOSTIC AND PHARMACOLOGICAL REVIEW ON CURCUMA PSEUDOMONTANA J.GRAHAM

2018 ◽  
Vol 11 (12) ◽  
pp. 17
Author(s):  
Vanita Kanase ◽  
Jyoti D Singh
Keyword(s):  
Andhra Pradesh ◽  
Nutritive Value ◽  
Fluorescence Analysis ◽  
Eastern Ghats ◽  
Pharmacological Activities ◽  
Peninsular India ◽  
Phytochemical Study ◽  
Primary And Secondary Metabolites ◽  
Current Review ◽  
The Family

Curcuma pseudomontana J. Graham belongs to the family Zingiberaceae, commonly known as hill turmeric. It is an endemic to the Western and Eastern Ghats, of peninsular India. C. pseudomontana rhizome is beneficial against leprosy, dysentery, and cardiac diseases. The Savara, Bagata, and Valmiki tribes of Andhra Pradesh use tuber extracts to cure jaundice and Bagata tribes use this plant for diabetes. In the present study, the preliminary phytochemical study and antioxidant activity of the rhizome extracts of C. pseudomontana were evaluated. Phytochemical screening indicated that rhizomes are rich in a variety of primary and secondary metabolites such as carbohydrates, alkaloids, Vitamin C, Vitamin E, flavonoids, phenols, glycosides, and saponins. The study highlights the biochemical and ethnopharmacological significance of an endemic C. pseudomontana. The results of pharmacognostic analysis will be helpful in developing standards for quality, purity, and sample identification. The current review summarizes the pharmacognostic parameters such as macroscopic, microscopic, physicochemical constituents, fluorescence analysis, nutritive value, behavior analysis of rhizome powder, and pharmacological activities prove it is a useful medicinal plant.

Rapid Determination of Fungicide Contaminated on Tomato Surfaces Using the DESIR-NIR: A System for ppm-order Concentration

2005 ◽  
Vol 13 (3) ◽  
pp. 169-175 ◽  
Author(s):  
Innapa Saranwong ◽  
Sumio Kawano
Keyword(s):  
Infrared Spectroscopy ◽  
Near Infrared Spectroscopy ◽  
Satisfactory Result ◽  
Filter Paper ◽  
Near Infrared ◽  
Rapid Determination ◽  
Petri Dish ◽  
Fruit Weight ◽  
Dry Extract

A system for rapid fungicide determination using near infrared spectroscopy was developed using the dry-extract system for infrared (DESIR) technique. Glass microfibre filter paper was used as the substrate. Fungicide solutions were prepared by dissolving the commercial dichlofluanid-carrying fungicide, Euparen, into acetone at concentrations of 2 ppm to 90 ppm of the active ingredient. Some techniques for adding the fungicide solutions onto the filter paper were examined. It was found that by adding 2 mL of the fungicide solution to the filter paper held in an identical size Petri dish made of polysyrene, a sufficiently accurate calibration result with SEP of 6.58 ppm could be obtained. In the following step, the technique was applied to the determination of fungicide on tomato surfaces. The fungicide was extracted from the fruit by washing with acetone. Then, the acetone solution was used for the DESIR embedding instead of the fungicide solution in the first experiment. A satisfactory result, with an SEP of 7.89 ppm for the washed solution that was equivalent to approximately 1.58 ppm per gram fruit weight, could be obtained.

scholarly journals Determination of Quality Characteristics, Phenolic Compounds and Antioxidant Activity of Propolis from Southeastern Mexico

2021 ◽  
Vol 65 (1) ◽  
pp. 109-122
Author(s):  
Enrique Sauri-Duch ◽  
Cesia Gutiérrez-Canul ◽  
Luis F. Cuevas-Glory ◽  
Lorena Ramón-Canul ◽  
Emilio Pérez-Pacheco ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
Geographical Location ◽  
Principal Component ◽  
Total Phenolic ◽  
Dry Extract ◽  
Extract Content ◽  
The Individual

Abstract The objective of this work was to investigate the variability of physicochemical parameters, phenolic compounds and in vitro antioxidant activity of propolis collected from different apiaries in southeastern Mexico. A high variability was found in the moisture content (1.96–8.26%), ash (0.66–5.50%) and sensory characteristics of raw propolis from southeastern Mexico, but the raw propolis samples met the requirements of the quality regulations. In the same way, most of the ethanolic extracts also complied with the quality regulations. Of all the extracts, PE2 obtained from Santa Cruz showed the highest values for dry extract, content of total phenolic compounds (TPC), total flavonoids (TF) and antioxidant activity (DPPH and ABTS). The content of the individual phenolic compounds varied according to the geographical location of the apiary, but the PE2 extract resulted in the highest pinocembrin and chrysin content. A positive correlation was obtained between TPC and TF with antioxidant activity. Propolis extracts were classified into two groups through principal component analysis (PCA). These results indicate that the apiary location in southeastern Mexico influenced the characteristics of propolis.

scholarly journals Antiradical and antidiabetic activity of Pleurotus ostreatus extracts

2020 ◽  
Vol 215 ◽  
pp. 05006
Author(s):  
Mark Shamtsyan ◽  
Lea Pogačnik
Keyword(s):  
Pleurotus Ostreatus ◽  
Antiradical Activity ◽  
Hot Water ◽  
Antidiabetic Activity ◽  
Inhibition Assay ◽  
Human Diet ◽  
Hot Water Extraction ◽  
Dry Extract ◽  
Ethanol Extracts

Mushrooms have been an important part of the diet for centuries. There are more than 2,000 different species of mushrooms found in the nature, but only 25 species are generally used in the human diet, and even fewer are grown commercially. One of the more popular mushrooms for cultivation and culinary use are mushrooms of the genus Pleurotus. The objectives of this study were: (i) preparation of isolates from the basidiomycetes Pleurotus ostreatus by sequential extraction with cold and hot water, extraction with hot water and extraction with hot alkali solution for determination of antiradical activity and (ii) preparation of water and 70% ethanol extracts for determination of antidiabetic activity. The antiradical activity of the extracts was determined using spectrophotometric method based on inhibition of free radical 2,2- diphenyl-1-picrylhydrazyl. Antidiabetic activity was determined using α- amylase inhibition assay with DNSA reagent and spectrophotometric determination. As a result of the work carried out, it was found that the preparations obtained by extraction exhibit antiradical activity. Regarding antidiabetic activity, all tested extracts showed considerable antidiabetic activity. Moreover, water extracts were inhibiting α-amylase significantly more than ethanol extracts at higher concentrations of dry extract (50 and 100 mg/mL), whereas at lower concentrations (1 and 10 mg/mL) of ethanol extracts were more efficient than water ones.

scholarly journals DETERMINATION OF ACUTE TOXICITY OF LARGE-PLANTOGO MAJOR DRY EXTRACT

2021 ◽  
Author(s):  
Dilsuz Fayzullaeva ◽  
Nodira Abdulladzhanova ◽  
Zilola Turdieva
Keyword(s):  
Acute Toxicity ◽  
Dry Extract
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