scholarly journals Phytochemical Characteristics Evaluation of Pleurotus species Cultivated on Agricultural Wastes in Chiro, Ethiopia

2021 ◽  
Author(s):  
Getachew Gashaw ◽  
Abebe Getu
Keyword(s):  
Industrial Waste ◽  
Food Source ◽  
Agricultural Wastes ◽  
Waste Materials ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Methanolic Extracts ◽  
Pleurotus Species ◽  
Potential Sources ◽  
Qualitative Analyses

Background: Mushrooms are a nutritious food source, being rich in protein, vitamins and minerals. They are also contains substances that enhance the immune system, fight infectious disease. Mushrooms can be cultivated on a variety of substrates, including agricultural and agro-industrial waste materials. The current study was amid to evaluate the phytochemical characteristics of Pleurotus species cultivated on different agricultural wastes.Methods: Mushrooms Pleurotus ostreatus and Pleurotus florida were cultivated on different agricultural wastes for the screening of phytochemical characteristics. Qualitative analyses of the phytochemicals were evaluated in methanolic, ethanolic and aqueous extracts of both Pleurotus spp. Total phenolic and total flavonoid contents of the extracts were determined by using Folin-Ciocalteu method and Spectrophotometric method with aluminum chloride.Result: Qualitative analyses revealed the phytochemicals alkaloids, saponins, flavonoids and tannins were present in methanolic, ethanolic and aqueous extracts of both Pleurotus spp. while anthraquinones and Phlobatannins were absent in aqueous extracts. The highest concentration of phenols and flavonoids were recorded in methanolic extracts of P. ostreatus and P. florida (48.17 mg GAE/g of extract and 56.57 mg of RUE/g of extract and 46.73 mg GAE/g of extract and 55.58 mg of RUE/g of extract respectively). The results supported the methanolic extracts of P. ostreatus and P. florida might indeed be potential sources of phytochemicals. 

scholarly journals COMPARATIVE STUDY ON THE ANTIOXIDANT ACTIVITIES OF METHANOLIC AND AQUEOUS EXTRACTS OF TERMINALIA BELLERICA

2019 ◽  
pp. 103-110
Author(s):  
RASNA GUPTA ◽  
RAM LAKHAN SINGH ◽  
ANKIT GUPTA
Keyword(s):  
Antioxidant Activities ◽  
Natural Antioxidants ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Fruit Pulp ◽  
Terminalia Bellerica ◽  
Phenolic Contents ◽  
Total Phenolic Contents ◽  
Methanolic Extracts ◽  
Better Than

Objective: The present study was undertaken to investigate the antioxidative activity of fruit pulp, seed and bark of T. bellerica. Methods: Methanol (70%) and water were used for the extraction, and the respective extracts were analyzed for total phenolic contents along with the antioxidant activities through different assays. Results: Amongst the tested extracts, methanolic extracts were found to be better than aqueous with the highest total phenolic contents (TPC). Methanolic fruit pulp showed lower IC50 for free radical (118.7 µg/ml), superoxide anion radical (77.65 µg/ml) and hydroxyl radical (73.76 µg/ml) scavenging activities. Methanolic fruit pulp also showed lower IC50 for lipid peroxidation (115.6 µg/ml) and ferric thiocyanate (184.98 µg/ml) assay than aqueous extracts in comparison to standard quercetin. Further, correlation between TPC and antioxidant studies revealed that phenolics are mainly responsible for antioxidant activity of T. bellerica. Conclusion: The current study suggests that the methanolic extract of T. bellerica could be a potential source of natural antioxidants for food and pharmaceutical companies.

Phenolic compounds from Citrus leaves: antioxidant activity and enzymatic browning inhibition

2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Bachra Khettal ◽  
Nabil Kadri ◽  
Karim Tighilet ◽  
Ahmed Adjebli ◽  
Farid Dahmoune ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Compounds ◽  
The Other ◽  
Enzymatic Browning ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Total Phenolic Compounds ◽  
Methanolic Extracts ◽  
Citrus Leaves ◽  
Browning Inhibition

AbstractBackgroundPhenolic compounds fromMethodsMethanolic and aqueous extracts were isolated fromResultsThe results showed that aqueous extracts of all species are rich in total phenolic compounds and flavonoids (from 68.23 to 125.28 mg GAE/g DM) and (from 11.99 to 46.25 mg QE/g DM) respectively. The methanolic and aqueous extracts were examined forConclusionsIn this investigation, the assessment of antiperoxidase activity proved that the leaves extracts of different species were able to inhibit peroxidase activity. However, this inhibition varied with the species and the source of these enzymes. On the other hand, the aqueous extracts of different species showed moderate inhibition of polyphenol oxidase, while no effect on these enzymes was obtained with methanolic extracts.

scholarly journals Sustainable Bioleaching of Rare Earth Elements from Industrial Waste Materials Using Agricultural Wastes

2019 ◽  
Vol 7 (18) ◽  
pp. 15311-15319 ◽  
Author(s):  
Hongyue Jin ◽  
David W. Reed ◽  
Vicki S. Thompson ◽  
Yoshiko Fujita ◽  
Yongqin Jiao ◽  
...  
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Industrial Waste ◽  
Agricultural Wastes ◽  
Waste Materials

scholarly journals Pharmacological Approach to Glycemic Treatment Using Black, Green and Herbal Tea Extracts

2021 ◽  
Vol 50 (3) ◽  
pp. 491-498
Author(s):  
K Akhter ◽  
T Ghous ◽  
Zain ul Abdin ◽  
E Sadaf ◽  
A Hassan ◽  
...  
Keyword(s):  
Green Tea ◽  
Biological Activities ◽  
Antioxidant Properties ◽  
Radical Scavenging ◽  
Black Tea ◽  
In Vitro Assays ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Methanolic Extracts ◽  
Alpha Glucosidase

Tea is the second most widely used drink all over the world after water. It has several health benefits. The aqueous and methanolic extracts of black, green and herbal teas for the treatment of hyperglycemia and its associated complications were investigated. Nine tea samples including black, green and herbal teas namely Lipton black tea (LBT), Supreme black tea (SBT), Tapal black tea (TBT), Jasmine green tea (JGT), Lemon grass green tea (LGrT), Lemon green tea (LGT), Berginia ciliata, Bistorta affinis and Paeonia emodi were selected for the study. Total phenolic contents (TPC), total flavonoid contents (TFC), antioxidant properties including inhibitory activity against 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulphonic acid) radical (ABTS•+), iron chelation and enzymes inhibitory potential for alpha glucosidase and alpha amylase were analyzed based on in vitro assays. The percentage yield of extracts was in the range of 7.2 to 47 %. Methanolic extracts showed greater TPC values (μg GAE/g) while aqueous extracts showed greater TFC values (μg Rutin E/g). The aqueous extracts of most of the studied tea samples showed strong biological activities with very low IC50 (50% inhibitory concentration) values (0.2-69.0 μg/ml) for ABTS•+ radical scavenging, Fe2+ chelation and alpha glucosidase inhibition assays. For amylase inhibition activity, some aqueous extracts including LBT, SBT, JGT and P. emodi exhibited greater IC50 values. Bangladesh J. Bot. 50(3): 491-498, 2021 (September)

Antioxidant and Anti-inflammatory Activities of Organic and Aqueous Extracts of Northeast Algerian Marrubium vulgare

2018 ◽  
Vol 16 (S1) ◽  
pp. S119-S129
Author(s):  
I. Namoune ◽  
B. Khettal ◽  
A.M. Assaf ◽  
S. Elhayek ◽  
L. Arrar
Keyword(s):  
Ethyl Acetate ◽  
Methanolic Extract ◽  
Ethyl Acetate Extract ◽  
Interleukin 1 ◽  
Total Phenolic ◽  
Dependent Manner ◽  
Aqueous Extracts ◽  
Traditional Use ◽  
Marrubium Vulgare ◽  
Anti Inflammatory

Marrubium vulgare (Lamiaceae) is frequently used in traditional medicine to treat many illnesses from ancient times. Its beneficial effects include antibacterial, antioedematogenic, and analgesic activities. This study was designed to evaluate the antioxidant and anti-inflammatory activities of organic and aqueous extracts of the leaves, the flowers, the stems, and the roots of Marrubium vulgare. The total phenolic and flavonoid contents as well as the antioxidant and the anti-inflammatory effects of methanol, chloroform, ethyl acetate, and aqueous extracts have been investigated by using different in-vitro methods. It was found that the ethyl acetate extract from Marrubium vulgare stems had the highest total phenolic content, while the ethyl acetate extract from the leaves yielded a high concentration of flavonoids. The ethyl acetate extract from the stems exhibited the highest activity in scavenging of 2,2-diphenyl- 1-picrylhydrazyl (DPPH), as well as in protecting erythrocytes. The leaves aqueous extract exhibited the highest ferrous chelating activity and its methanolic extract was found to be the strongest inhibitor of lipid peroxidation in β-carotene bleaching assay. The leaves chloroform extracts as well as the flowers methanol, chloroform, and ethyl acetate extracts were found to decrease the pro-inflammatory tumor necrosis factor alpha (TNF-α) cytokine levels in a dose-dependent manner. On the other hand, the flowers methanolic extract and the leaves methanol, ethyl acetate, and aqueous extracts decreased the interleukin-1 beta (IL- 1β) release. It was also found that the methanol extract from the flowers and the chloroform extract from the stems of Marrubium vulgare inhibited interleukin-8 (IL-8) release. This study provides a scientific basis for the traditional use of Marrubium vulgare as an anti-inflammatory agent and for the plant to be considered as an important resource of natural antioxidants.

Evaluation of diuretic and antioxidant properties in aqueous bark and fruit extracts of pine

2020 ◽  
Vol 17 ◽  
Author(s):  
Hadi Shariati ◽  
Mohammad Hassanpour ◽  
Gholamreza Sharifzadeh ◽  
Asghar Zarban ◽  
Saeed Samarghandian ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Phenolic Content ◽  
Antioxidant Properties ◽  
Pine Bark ◽  
Male Rats ◽  
Total Phenolic ◽  
Dependent Manner ◽  
Aqueous Extracts ◽  
Antioxidant Power ◽  
Dose Dependent

Objective: The present study has been carried out to evaluate the diuretic and antioxidant properties of pine herb in an animal model. Materials and Methods: 45 adult male rats were randomly divided into nine groups including: groups I (the negative control), groups II (positive control, furosemide 10 mg/kg), groups III to VIII (treatment groups received 100, 200, 400 mg/kg of the aqueous extracts of bark and fruit) and group IX received the combination of aqueous extract of bark (100 mg/kg) and the fruit (100 mg/kg). The urine output, glomerular filtration rate (GFR), electrolytes, urea, and creatinine levels were evaluated . Furthermore, the phenolic content and antioxidant activity of both extracts were also assessed using 2, 2-diphenyl-1-picrylhydrazyl (DPPH), ferric reducing antioxidant power (FRAP) and Folin–Ciocalteu methods. Results: The aqueous extracts of the pine bark and fruit increased the urinary output in a dose-dependent manner. The combination of the two extracts compared to the other extracts alone significantly increased the serum potassium level. This study also showed each extract increase creatinine clearance in a dose-dependent manner (p<0.01 and p<0.05). The increase of GFR in the combination group was not significant. The current data showed a significant increase in the total phenolic content in pine bark extract in compared with the fruit extract. Conclusion: The pine bark and fruit can be useful in the prevention and treatment of kidney stones due to the high antioxidant activity.

scholarly journals Antifungal and Antioxidant Potential of Methanolic Extracts from Acorus calamus L., Chlorella vulgaris Beijerinck, Lemna minuta Kunth and Scenedesmus dimorphus (Turpin) Kützing

2021 ◽  
Vol 11 (11) ◽  
pp. 4745
Author(s):  
Toncho Dinev ◽  
Milena Tzanova ◽  
Katya Velichkova ◽  
Diyana Dermendzhieva ◽  
Georgi Beev
Keyword(s):  
Antioxidant Activity ◽  
Chlorella Vulgaris ◽  
Phenolic Content ◽  
Radical Scavenging ◽  
Total Phenolic ◽  
Acorus Calamus ◽  
Total Flavonoid Content ◽  
Flavonoid Content ◽  
Methanolic Extracts ◽  
Scenedesmus Dimorphus

Plant extracts are an important alternative to antibiotics, which are ever more restricted because of their developing microbial resistance and some adverse effects that have been observed following frequent application. The aim of the present study was to determine the antifungal and antioxidant activity of the methanolic extracts of Acorus calamus, Chlorella vulgaris, Lemna minuta and Scenedesmus dimorphus. The antifungal activity of the extracts against strains of Aspergillus flavus, Aspergillus parasiticus, Aspergillus ochraceus, Aspergillus niger, Aspergillus carbonarius, Fusarium graminearum, Fusarium oxysporum, Penicillium chrysogenum and Alternaria alternata was evaluated via the agar well diffusion method. The antioxidant activity of the extracts was measured through the determination of three parameters—total phenolic content, total flavonoid content and radical scavenging potential (determined through UV/Vis analysis). A. calamus extracts had the highest antimicrobial activity against eight fungal strains, followed by the C. vulgaris, L. minuta and S. dimorphus extracts, which were inhibitory against two to three strains. Among the extracts from the species studied, the extract from S. dimorphus showed the highest antioxidant potential, as determined via the DPPH (1,1’-diphenyl-2-picrylhydrazil-radical) method. This correlated to its high total phenolic and flavonoid content. From A. calamus and L. minuta, methanolic extracts were obtained that exhibited similar values of the aforementioned parameters, followed by C. vulgaris extracts, which showed the lowest antioxidant activity. Based on the Pearson correlation coefficients, the impacts of the total phenolic content and the total flavonoid content on radical scavenging capacity are similar, and flavonoids were a significant part of the total phenolic compounds extracted from the plant materials studied.

scholarly journals Phytochemical Analysis, Antioxidant and Anticancer Potential of Sideritis niveotomentosa: Endemic Wild Species of Turkey

Molecules ◽  
2021 ◽  
Vol 26 (9) ◽  
pp. 2420
Author(s):  
Ela Nur Şimşek Şimşek Sezer ◽  
Tuna Uysal
Keyword(s):  
Cell Lines ◽  
Phenolic Content ◽  
Radical Scavenging ◽  
Total Phenolic ◽  
Phytochemical Analysis ◽  
Expression Levels ◽  
Phenolic Contents ◽  
Scavenging Effect ◽  
Methanolic Extracts ◽  
Total Antioxidant

Sideritis niveotomentosa Hub. -Mor. is a local endemic species belonging to the Lamiaceae family. In this study, GC/MS analysis, total antioxidant capacity and anticancer effects of different extracts obtained from S. niveotomentosa were investigated comparatively. Total phenolic contents of extracts were determined by the Folin–Ciocalteu method, total flavonoid contents by aluminum chloride method, and also the free radical scavenging activities of the extracts by DPPH (2,2-diphenyl-1-picryl-hydrazyl-hydrate) assay. The cytotoxic effect of the extracts was studied via MTT (3-(4,5-Dimethylthiazol-2-yl)-2,5-Diphenyltetrazolium Bromide) assay on DLD1, HL60 and ARH77 cell lines. Pro-apoptotic gene expression levels were also tested in the most sensitive cell line ARH77 by Real-Time PCR. The expression levels of 4 pro-apoptotic genes, APAF, BAX, CASP3, and HRK were found to be upregulated in ARH77 cells that were treated extracts. Results showed that methanolic extracts contain more phenolic content than acetone extracts, consistent with DPPH results. As a result, Sideritis niveotomentosa extracts, especially methanolic extracts, are rich in phenolic content and have a strong radical scavenging effect. In addition, the extracts showed selective effects on cell lines. This study is pioneering in terms of future studies, and the findings provide hope for future experimentation.

scholarly journals Bioactive Compounds, Antioxidant, and Antibacterial Properties of Lonicera caerulea Berries: Evaluation of 11 Cultivars

Plants ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 624
Author(s):  
Laima Česonienė ◽  
Juozas Labokas ◽  
Ina Jasutienė ◽  
Antanas Šarkinas ◽  
Vilma Kaškonienė ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Vitamin C ◽  
Organic Acids ◽  
Bioactive Compounds ◽  
Total Phenolic ◽  
Aqueous Extracts ◽  
Lonicera Caerulea ◽  
Phenolic Contents ◽  
Total Phenolic Contents ◽  
Ethanolic Extracts

The aim of the study was to evaluate 11 cultivars of blue honeysuckle (Lonicera caerulea L.) for bioactive compounds, antioxidant capacity, and the antibacterial activity of berries. Total phenolic contents (TPCs) and total anthocyanin contents (TACs) were established by using ethanolic extracts. For contents of organic acids and saccharides, aqueous extracts were used, and vitamin C was determined by using oxalic acid solution. DPPH• radical scavenging capacity was evaluated by using ethanolic extracts; antibacterial activity was assessed by using both ethanolic and aqueous extracts. The TPC varied from 364.02 ± 0.41 mg/100 g in ‘Vostorg’ to 784.5 ± 0.3 mg/100 g in ‘Obilnaja’, and TAC ranged from 277.8 ± 1.1 mg/100 g in ‘Čelnočnaja’ to 394.1 ± 8.4 mg/100 g in ‘Nimfa’. Anthocyanins comprised 53.8% of total phenolic contents on average. Among organic acids, citric acid was predominant, averaging 769.41 ± 5.34 mg/100 g, with malic and quinic acids amounting to 289.90 ± 2.64 and 45.00 ± 0.37 mg/100 g on average, respectively. Contents of vitamin C were 34.26 ± 0.25 mg/100 g on average. Organic acids were most effective in the inhibition of both Gram-positive and Gram-negative bacteria tested. In conclusion, berries of L. caerulea are beneficial not only for fresh consumption, but also as a raw material or ingredients of foods with high health-promoting value.

scholarly journals Development of UHPC Mixtures Utilizing Natural and Industrial Waste Materials as Partial Replacements of Silica Fume and Sand

2014 ◽  
Vol 2014 ◽  
pp. 1-8 ◽  
Author(s):  
Shamsad Ahmad ◽  
Ibrahim Hakeem ◽  
Mohammed Maslehuddin
Keyword(s):  
Silica Fume ◽  
Industrial Waste ◽  
Steel Slag ◽  
Limestone Powder ◽  
Waste Materials ◽  
Cement Kiln ◽  
Test Results ◽  
Strength Criteria ◽  
Natural Pozzolana ◽  
Kiln Dust

In the exploratory study presented in this paper, an attempt was made to develop different mixtures of ultrahigh performance concrete (UHPC) using various locally available natural and industrial waste materials as partial replacements of silica fume and sand. Materials such as natural pozzolana (NP), fly ash (FA), limestone powder (LSP), cement kiln dust (CKD), and pulverized steel slag (PSS), all of which are abundantly available in Saudi Arabia at little or no cost, were employed in the development of the UHPC mixtures. A base mixture of UHPC without replacement of silica fume or sand was selected and a total of 24 trial mixtures of UHPC were prepared using different percentages of NP, FA, LSP, CKD, and PSS, partially replacing the silica fume and sand. Flow and 28-d compressive strength of each UHPC mixture were determined to finally select those mixtures, which satisfied the minimum flow and strength criteria of UHPC. The test results showed that the utilization of NP, FA, LSP, CKD, and PSS in production of UHPC is possible with acceptable flow and strength. A total of 10 UHPC mixtures were identified with flow and strength equal to or more than the minimum required.

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