scholarly journals The Study of Interactions between Active Compounds of Coffee and Willow (Salixsp.) Bark Water Extract

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Agata Durak ◽  
Urszula Gawlik-Dziki

Coffee and willow are known as valuable sources of biologically active phytochemicals such as chlorogenic acid, caffeine, and salicin. The aim of the study was to determine the interactions between the active compounds contained in water extracts from coffee and bark of willow (Salix purpureaandSalix myrsinifolia). Raw materials and their mixtures were characterized by multidirectional antioxidant activities; however, bioactive constituents interacted with each other. Synergism was observed for ability of inhibition of lipid peroxidation and reducing power, whereas compounds able to scavenge ABTS radical cation acted antagonistically. Additionally, phytochemicals from willow bark possessed hydrophilic character and thermostability which justifies their potential use as an ingredient in coffee beverages. Proposed mixtures may be used in the prophylaxis or treatment of some civilization diseases linked with oxidative stress. Most importantly, strong synergism observed for phytochemicals able to prevent lipids against oxidation may suggest protective effect for cell membrane phospholipids. Obtained results indicate that extracts from bark testedSalixgenotypes as an ingredient in coffee beverages can provide health promoting benefits to the consumers; however, this issue requires further study.

INDIAN DRUGS ◽  
2021 ◽  
Vol 58 (10) ◽  
pp. 34-41
Author(s):  
Kanthlal S. K. ◽  
Jipnomon Joseph ◽  
Bindhu P. Paul ◽  
Vijayakumar M ◽  
Rema Shree A. B. ◽  
...  

Amomum subulatum, commonly known as large or black cardamom, is a commonly used spice in Indian kitchens and is traditionally used to treat various ailments. To add more knowledge about the medicinal values of the fruit, this study was conducted to evaluate the in vitro antioxidant activities of aqueous, methanol, ethanol, hydro alcohol, ethyl acetate, acetone and chloroform extracts of the fruit. Preliminary assessment was done to detect the presence of phytoconstituents using identification tests. The antioxidant activity was measured by employing methods such as diphenylpicrylhydrazyl (DPPH) radical scavenging assay, total antioxidant activity equivalent to ascorbic acid, reducing power assay and superoxide anion scavenging assay. The antioxidant activities were compared with their respective phenol and flavonoid contents. Preliminary assessment revealed that large cardamom fruit is a good source of all the bioactive constituents as well as phenol and flavonoid essential for medicinal values. The extract obtained by polar solvents showed the highest antioxidant efficacy in relation to its phenol content. Also, all the solvent-soluble fractions showed a concentration-dependent antioxidant effect. Results from our study prove that large cardamom can alleviate oxidative stress, suggesting the potential of large cardamom as a functional food


2020 ◽  
Vol 3 (2) ◽  
pp. 61-66
Author(s):  
N.Ye. Stadnytska ◽  
◽  
A.O. Kyrychuk ◽  
O.M. Fedorushyn ◽  
G.M. Shyjan ◽  
...  

The analysis of the range of drugs containing raw materials and biologically active compounds Pinus sp. registered in Ukraine and found: most drugs are presented in the form of ointments; the predominant share of the range (79%) of the studied drugs are multicomponent drugs; the share of the range of drugs manufactured at pharmaceutical enterprises of Ukraine is 38%; the largest number of drugs is manufactured by domestic manufacturers in the city of Zhytomyr PJSC "Liktravy" and LLC "DKP" Pharmaceutical Company; among importing countries, Germany dominates, followed by India and Estonia, respectively.


2020 ◽  
Vol 2020 ◽  
pp. 1-10
Author(s):  
A. S. Shakun ◽  
V. I. Vorobyova ◽  
O. E. Chygyrynets ◽  
M. I. Skiba

Antioxidants of natural origin which are based on agroprocessing waste appear as substance with high performance properties. They have complicated structure and contain a complex of biologically active compounds. This is why research of the above is particularly relevant in current competitive market. When working with plant raw materials and isolation of valuable compounds, the urgent issue is the choice of the method (extraction method) and extractant, which will ensure a maximum release of chemically active compounds. Known solvents such as methanol, ethanol, hexane, diethyl ether, and mixtures thereof are usually used for recovery. The purpose of this research was to study the effect of selected nonpolar solvents on the phytochemical composition and the antioxidant capacity of Prunus armeniaca L. Extracts were obtained using ethanol, silicone, propan-2-ol, and mixtures of ethanol silicone and propan-2-ol with silicone. In the obtained extracts, identification of the sequestered chemically active compounds was carried out by means of chromatography, mass spectrometry, and IR and UV spectrometry, and the extracts were evaluated on antioxidant properties. Various extracts showed varying degrees of antioxidant activity in various test systems, depending on the concentration. Since various antioxidant compounds have different mechanisms of action, several methods have been used to evaluate the effectiveness of antioxidant extracts. The results showed that the test solvents play an important role in the extraction of the plant material into the component composition, as well as the antioxidant ability of Prunus armeniaca L.


2014 ◽  
Vol 60 (3) ◽  
pp. 34-43 ◽  
Author(s):  
Katarzyna Bączek

Summary Eight species of Eleutherococcus genus grown at Rogów Arboretum collection were compared in respect of biologically active compounds accumulation, i.e. eleutheroside B and E, phenolic acids and sterols. For the determination of content of these compounds in underground organs and stem bark high performance liquid chromatography was applied. The highest content of the sum of eleutherosides B and E was observed in underground organs and stem bark of E. leucorrhizus (322.0 and 300.8 mg × 100 g-1, respectively) and E. nodiflorus (218.9 and 363.5 mg × 100g-1, respectively). In the raw materials from E. senticosus, the content of these compounds was significantly lower (177.4 and 159.3 mg × 100 g-1, respectively). E divaricatus and E. setchuenensis were characterized by the lowest accumulation of these compounds in underground organs whereas E. divaricatus, E. sessiliflorus and E. giraldii - in stem bark. Four phenolic acids were identified in the investigated species, namely: chlorogenic, rosmarinic, ferulic and caffeic acids. The main phenolic acid in the analyzed species was chlorogenic acid. The content of this compound in underground organs varied from 102.1 (E. henryi) to 958.7 mg × 100 g-1 (E. leucorrhizus) and in stem bark from 26.7 (E. giraldii) to 542.5 mg × 100 g-1 (E. setchuenensis). The content of identified sterol compounds (sitosterol 3-O-β-D-glucoside /eleutheroside A / campesterol, stigmasterol) was relatively low, but higher in underground organs in comparison with stem bark.


2017 ◽  
Vol 47 (5) ◽  
pp. 623-634 ◽  
Author(s):  
Phisut Naknaen

Purpose The purpose of this paper is to investigate the effects of concentrations of mixed enzymes (Rapidase EX Color and Accellerase) and incubation times on the release of biologically active compounds and the extraction efficiency of cantaloupe juice. Design/methodology/approach Different concentrations of the mixed enzymes (0.25-1.0 per cent) and incubation times (1-5 h) were used. The yield, clarity, bioactive compounds and antioxidant activities were investigated. Findings The total phenolic content, total flavonoid content, β-carotene, ascorbic acid content and antioxidant capacities as evaluated by 2, 2-diphenyl-1-picrylhydrazyl-radical scavenging activity and ferric reducing antioxidant power were approximately 6, 3.25, 3, 2.5, 3.5 and 3.0 times higher than the control samples after incubating with 0.5 per cent enzyme for 2 h (p < 0.05). This condition was recommended to promote the release of biologically active compounds and still provided a 32 per cent increase in the amount of the extracted juice. Practical implications Cantaloupe juice produced by enzymatic treatment could be claimed to be a source of health enhancing compounds. This work could be used as a guideline for the industry to develop high value-added functional drinks from cantaloupe. Originality/value This study evaluates for the first study on the application of Rapidase EX Color and Accellerase for improving the phytochemical compounds in cantaloupe juice. This technique could successfully extract the cantaloupe juice with biologically active nutrients containing beneficial health effects.


2021 ◽  
Vol 59 (2) ◽  
Author(s):  
Boon-Hong Kong ◽  
Chee-Sum Alvin Yap ◽  
Muhammad Fazril Mohamad Razif ◽  
Szu-Ting Ng ◽  
Chon-Seng Tan ◽  
...  

Research background. Ophiocordyceps sinensis, a highly valued medicinal fungus is close to extinction due to overexploitation. Successful cultivation of O. sinensis fruiting body (OCS02®) shows the cultivar consists promising nutritional value and numerous bioactive compounds. Antioxidant and antiproliferative properties and biologically active proteins of the OCS02® are investigated for possible development into nutraceuticals. Experimental approach. The chemical compositions of the OCS02® cold water extract was determined, and the antioxidant activities were examined using ferric reducing, DPPH and O2- scavenging assays. MTT cytotoxic assay was performed to assess the antiproliferative activity of the extract. Bioactive proteins in the active fraction of the extract were identified using liquid chromatography (LC) and tandem-mass spectrometry (MS/MS). Results and conclusions. The OCS02® extract exhibited strong O2- scavenger ((18.40±1.12) mol TE/g extract) and potent cytotoxicity towards A549 cells (IC50=(58.17±6.79) µg/mL). High molecular mass polysaccharides, proteins and protein-polysaccharide complexes could have contributed to the antioxidant and cytotoxic selectivity of the OCS02®. LC-MS/MS analysis identified several potential cytotoxic proteases and an oxalate decarboxylase oxdC protein which may exhibit protection effects on kidneys. Novelty and scientific contributions. The findings reported the promising superoxide anion radical scavenging capacity, cytotoxic effect and presence of bio-pharmaceutical active proteins in of OCS02® extract, thus demonstrates the potential of OCS02® to be developed into functional food.


Author(s):  
Dalija Segliņa ◽  
Inta Krasnova ◽  
Sanita Alsiņa

Abstract Lonicera caerulea L., also known as honeysuckle berries, are rich in biologically active compounds, which makes them a valuable raw material for the development of functional foods. The objects of the research were three honeysuckle cultivars (‘Zoluška’, ‘Siņaja Ptica’, ‘Goluboje Vereteno’), four genotypes (No 2A; No 3; No 5; No 8) and kefir, enriched with various amounts (3–10%) of fruit puree. Physical and chemical analyses to determine the qualitative indicators of raw materials and products were performed. The degree of liking of kefir was assessed using sensory analysis: hedonic and line scales. The results obtained showed that among the cultivars the highest content of anthocyanins (1103.5 mg·100 g−1), total phenols (693.3 mg·100 g−1), flavonoids (753.9 mg·100 g−1), and tannins (1.6 mg·100 g−1), were found in ‘Siņaja Ptica’ berries, while among the genotypes, berries of No 8 had the highest concentration of the aforesaid compounds. Both samples also showed the highest antiradical activity: ABTS+• on average by 71.7% and DPPH− by 43.7%. According to the sensory evaluation, kefir with 10% honeysuckle puree was rated the highest. Honeysuckle berries could be used as a promising source of natural anti-oxidants in future research aimed at developing different new products that could meet consumer expectations.


Author(s):  
Roland Kopaliani ◽  
Temur Gvinianidze ◽  
Rezo Jabnidze

This paper dwells on the uvological characteristics of cultivar Vitis vinifera L. ‘Red Aladasturi’ grape raw materials growing in the viticulture and winemaking zone of Imereti (Georgia), as well as biologically active compounds and antioxidant activity of hydrophilic extracts and liquid concentrates of its solid matters (stone and skin). Research also covered hydrophilic extracts of grape skin and stone thickened by the vacuum of ‘Red Aladasturi’ grapes raw materials, as well as the concentrates produced from their composition. For research, there were used gravimetric, extractive, spectral and chromatographic methods. We processed samples of grapes raw materials according to the following pattern: identifying qualitative indicators of grapes raw materials; passing grapes raw materials through the DMCSI-type grape clustercomb divider; pressing-out the combless must in a basket press and separation of juice; vacuum sublimation drying of juiceless sweet pomace with an initial moisture content of 45–65% to a final moisture content of 9–10%; separation of the ‘Red Aladasturi’ cultivar’s skin and stone dried to the moisture content of 9–10%, using tea sorting machine designed by G. Lominadze; crushing separately the skin and stone in a micro-mill (TP2 Hammer Mill) until the fraction of 50–100 µm. we have blended the obtained grape-stone ethanol and fluid extracts containing 74–75% of solid maters at an equal ratio (1:1:1) and assessed biologically active compounds and antioxidant activity in this composition. It has been established that the bio-flavanoid liquid concentrate ‘Red Aladasturi’ is strong antioxidant  (55.31–57.45%), and one tablespoon or 8–9 ml of it contains 110–127 mg of flavanoids, which is 105–110% of a full day of rations per person per day.


Author(s):  
Dmitry N. Kuznetsov ◽  
Konstantin I. Kobrakov ◽  
Anna G. Ruchkina ◽  
Galina S. Stankevich

For citation:Kuznetsov D.N., Kobrakov K.I., Ruchkina A.G., Stankevich G.S. Biologically active synthetic organic dyes. Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol. 2017. V. 60. N 1. P. 4-33.This review is based on the publications found in CAS (Chemical Abstracts Service) database available from STN (The Scientific and Technical Information Network) with respect to dyes, and the compounds that can be classified as the dyes molecular variants. The substances were categorised based on the dyes chromophore properties. Special care was taken to determine the “composition - property” profile within the range of structurally similar compounds. An extensive list of literature references is provided to support the review's subject, including the authors’ own studies on the synthesis, properties and applications of coloured biologically active compounds. The view covers the uses of coloured biologically active compounds as textile dyes and the uses in other industries such as medical, agricultural etc. The review is substantially focused on biocidal azo dyes for the reason of the great variety of possible diazo and azo components which are used for the synthesis of dyes to create an abundance of biocidal dyes with a wide scale of colors. Usage of dyes which add expressed biocidal properties to the coloured textile and other materials and make them resistent to physical and chemical agents is a subject of obvious practical interest, as this enables the combination of two manufacturing processes in one step: coloration and special chemical treatment. Moreover, as it appears from the review, biocidal dyes may be used as additives to the primary dye, without affecting the colour of the object being dyed, albeit in quantities sufficient to endow the required biocidal properties. As demonstated by the review, streamlined synthesis of textile dyes exhibiting biocidal properties, which are able to make a material resistent to biodeterioration or add medicinal properties to the material, is hard to accomplish due to the lack of profound understanding of the mode of action of such compounds. However, the available “composition - property” data and the computer-aided screening data of the biological activity of organic compounds allow us to model and synthesise target products with a high degree of confidence. The review doesn’t cover the properties of biocidal dyes derived from natural raw materials.


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