EVALUATION OF DIFFERENT BIOLOGICAL ACTIVITIES OF LEAVES OF EHRETIA ACUMINATA R. BR.

INDIAN DRUGS ◽  
2021 ◽  
Vol 58 (4) ◽  
pp. 42-49
Author(s):  
Abha Shukla ◽  
◽  
Amanpreet Kaur ◽  
Rishi K. Shukla ◽  

Ehretia acuminata R. Br. is a plant with alternative medicinal properties, commonly found in Asian, African and North American countries. The present study was undertaken to prepare crude extracts of E. acuminata leaves with different polarity solvents (petroleum ether (PE), chloroform (CH), ethyl acetate (EA), ethanol (EOL) and aqua (AQ)) by using successive Soxhelet extraction method and assessing antidiabetic, antiinflammatory and antihemolytic activities by the spectrophotometric method and antimicrobial activity by the zone inhibition method. The highest antidiabetic activity was found in the chloroform extract (IC50 260-265 µg/mL) and the lowest was in the aqueous extract (IC50 1560-1550 µg/mL). In anti-inflammatory assay, highest potential was shown by ethyl acetate (IC50 290 µg/mL) extract and lowest in petroleum ether (IC50 750µg/mL) extract. The zone of inhibition is highest in ethanol extract (12-18mm) by different food poisoning microbes, similarly, ethyl acetate extract showed the highest potential in antihemolytic activity with IC50 90 µg/mL. Many extracts of E. acuminata leaves showed a high biological potential that could be attributed to the high amount of phytoconstituents and thus could be utilized as value added functional food.

2021 ◽  
Vol 16 (2) ◽  
pp. 078-086
Author(s):  
Abdulaziz Yahya Al-Ghamdi

This study aimed to investigate the phytochemical screening, total phenolic content, antioxidant and antimicrobial activities of Coleus forskohlii L. stem extract in Al-Baha area, Saudi Arabia. Stem samples were collected from Al-Baha area and air-dried followed by extraction with ethanol, petroleum ether, chloroform, ethyl acetate, and n-butanol. The extracts were then subjected to phytochemical screening, determination of total phenolic content, antioxidant and antimicrobial activities. Results showed the presence of flavonoids, alkaloids, tannins, terpenoids, steroids, saponins, and reducing sugars. Total phenolic content was significantly (P<0.001) higher in n-butanol extract (274.33±3.29 mg GAE/gm), followed by ethyl acetate extract (182.94±1.82 mg GAE/gm), ethanol extract (79.63±2.02 mg GAE/gm) and petroleum ether extract (73.38±3.07 mg GAE/gm), while the lowest content was in chloroform extract (60.06±2.12 mg GAE/gm). The antioxidant activity was significantly (P<0.001) higher in n-butanol extract (67.68±1.55%), followed by ethyl acetate extract (43.38±1.27%), ethanol extract (36.02±1.29%), petroleum ether extract (20.71±0.59%) and chloroform extract (19.73±0.74%). The antimicrobial activity showed that all microorganisms tested were resistant at the concentration of 25 and 50 mg/ml of plant extracts, whereas the concentrations of 100, 150 and 200 mg/ml showed varying activities against gram-negative (Escherichia coli, Pseudomonas aeruginosa), gram-positive (Staphylococcus aureus, Bacillus cereus) and Candida albicans. The study concluded that the stem extracts of C. forskohlli have promising pharmacological and biological activities that could be beneficial in pharmaceutical as well as food and medicinal industries.


2014 ◽  
Vol 66 (3) ◽  
pp. 1261-1270
Author(s):  
Rakesh Sindhu ◽  
Sandeep Arora

The present study was undertaken to evaluate the anti-inflammatory potential of Murraya koenigii root extracts petroleum ether, ethyl acetate and chloroform (MKPE, MKEA and MKCF, respectively) and Ficus lacor aerial root extracts petroleum ether, ethyl acetate, chloroform and ethanol (FLPE , FLET, FLCF and FLET, respectively) at doses of 50 and 100 mg/kg body weight (b.w.) using animal models of acute inflammation (carrageenan-, histamine- and serotonin-induced inflammation). The results of the Murraya koenigii roots chloroform extract caused 66.4% inhibition and the ethanol extract of Ficus lacor aerial roots caused 68.3% inhibition at the dose of 50 mg/kg b.w. At a higher dose of 100 mg/kg b.w., MKPE and MKCF showed 55.10% and 70.10% inhibition, respectively. FLPE and FLET showed 74.50% and 75.40% inhibition, respectively, in the carrageenan-induced inflammation model. In histamine-induced inflammation, the MKCF showed 60% inhibition, and 67.01% and 68.02% inhibition with the petroleum ether and ethanol extracts, respectively, in Ficus lacor aerial roots at the dose of 50 mg/kg b.w. At a higher dose (100 mg/kg b.w.), MKCF showed 64% inhibition. FLPE and FLET showed 70.13%and 74.01% inhibition, respectively; 62.15% and 66.10% inhibition was observed with the petroleum ether and ethanol extracts of Ficus lacor aerial roots at 50 mg/kg b.w. At higher dose (100 mg/kg b.w.), FLPE and FLET showed 69.10% and 68.72% inhibition in serotonin-induced inflammation.


2020 ◽  
Vol 10 (19) ◽  
pp. 6987
Author(s):  
Kunle Okaiyeto ◽  
Anthony I. Okoh

The high resistance evolution of protozoans to the existing antiparasitic drugs has necessitated the quest for novel and effective drugs against plasmodium and trypanosome parasites. As a result, this study aimed to assess the antiplasmodial and antitrypanosomal potentials of chloroform, ethyl acetate and ethanol leaf extracts of Oedera genistifolia. Standard biochemical procedures were explored for the plant extraction and gas chromatography-mass spectroscopy (GCMS) was used to identify the bioactive compounds in the crude extracts. The cytotoxic effects of the crude extracts were assessed against human cervix adenocarcinoma (HeLa cells) and their antiparasitic activities were investigated against Plasmodium falciparum strain 3D7 and Trypanosoma brucei brucei. GCMS analyses of the crude extracts revealed the bioactive compounds that could be responsible for the biological activities. The extracts had no cytotoxic effect on HeLa cells and demonstrated good antiplasmodial activity (chloroform extract: IC50 = 11.6 µg∙mL−1, ethyl acetate extract: IC50 = 3.3 µg∙mL−1 and ethanol extract: IC50 = 3.7 µg∙mL−1). Likewise, they showed excellent antitrypanosomal activity with IC50 = 0.5 µg∙mL−1 for chloroform and ethyl acetate extracts and IC50 = 0.4 µg∙mL−1 for the ethanol extract. Findings from the present study indicated that O. genistifolia could be a good source of strong antiplasmodial and antitrypanosomal agents.


2018 ◽  
Vol 18 (1) ◽  
pp. 66 ◽  
Author(s):  
Laela Nur Anisah ◽  
Wasrin Syafii ◽  
Gustan Pari ◽  
Rita Kartika Sari

Samama (Anthocephalus macrophyllus) is one of a pioneer indigenous fast growing species in Indonesia which have been used as traditional medicine for various diseases. The objectives were to determine the yield extract, to analyze their antidiabetic activity by inhibition assay for α-glucosidase enzyme activity and chemical analysis with GCMS. Extraction of leaves, bark and wood samples were done by using ethanol 95%. Fractionation the most active  ethanol extract was conducted by using n-hexane and ethyl acetate. The yield of ethanol extracts in leaves, bark and wood were 13.90%, 12.87%, and 2.18% respectively. Based on antidiabetic activity assay, the bark ethanol extract was the most active extract by the IC50 value of 5.86 μg mL-1. Phytochemical analysis on bark ethanol extracts showed that they contained flavonoid, quinon, triterpenoid, saponin and tannin which were assumed have high contribution in antidiabetic activities. The result of fractionation ethanol extract bark showed that the ethyl acetate fraction was the most active fraction (IC50 6.82 μg mL-1). GCMS analysis indicated the presence of dominant phenolic compounds such as pyrocatechol, antiarol, isopropyl myristate and phenol in which were suspected have antidiabetic activity. These results strongly suggested that ethyl acetate fraction of Samama bark was a potential natural source for antidiabetic agents.


Foods ◽  
2020 ◽  
Vol 9 (7) ◽  
pp. 881 ◽  
Author(s):  
Ngan Tran ◽  
Minh Tran ◽  
Han Truong ◽  
Ly Le

The present study was performed to spray-dry the high concentration of bioactive compounds from Euphorbia hirta L. extracts that have antidiabetic activity. The total phenolic content (TPC) and total flavonoid content (TFC) of four different extracts (crude extract, petroleum ether extract, chloroform extract and ethyl acetate extract) from the dried powder of Euphorbia hirta L. were determined using a spectrophotometer. After that, the fragment containing a high number of bioactive compounds underwent spray-dried microencapsulation to produce powder which had antidiabetic potential. The total phenolic content values of the crude extract, petroleum ether extract, chloroform extract and ethyl acetate extract were 194.55 ± 0.82, 51.85 ± 3.12, 81.56 ± 1.72 and 214.21 ± 2.53 mg/g extract, expressed as gallic acid equivalents. Crude extract, petroleum ether extract, chloroform extract and ethyl acetate extracts showed total flavonoids 40.56 ± 7.27, 29.49 ± 1.66, 64.99 ± 2.60 and 91.69 ± 1.67 mg/g extract, as rutin equivalents. Ethyl acetate extract was mixed with 20% maltodextrin in a ratio of 1:10 to spray-dry microencapsulation. The results revealed that the moisture content, bulk density, color characteristic, solubility and hygroscopicity of the samples were 4.9567 ± 0.00577%, 0.3715 ± 0.01286 g/mL, 3.7367 ± 0.1424 Hue, 95.83 ± 1.44% and 9.9890 ± 1.4538 g H2O/100 g, respectively. The spray powder was inhibited 51.19% α-amylase at 10 mg/mL and reduced 51% in fast blood glucose (FBG) after 4 h treatment. Furthermore, the administration of spray powder for 15 days significantly lowered the fast blood glucose level in streptozotocin-diabetic mice by 23.32%, whereas, acarbose—a standard antidiabetic drug—and distilled water reduced the fast blood glucose level by 30.87% and 16.89%. Our results show that obtained Euphorbia hirta L. powder has potential antidiabetic activity.


2017 ◽  
Vol 45 (6) ◽  
pp. 1985-2000 ◽  
Author(s):  
Ping Huang ◽  
Wenxiu Xin ◽  
Xiaowei Zheng ◽  
Fang Luo ◽  
Qinglin Li ◽  
...  

Objectives Sceptridium ternatum is an expectorant in traditional Chinese medicine and is prescribed for the treatment of asthma. The study aim was to screen Sceptridium ternatum for ingredients with antitussive and antiasthmatic effects and to study their associated mechanisms. Methods Cough in mice was induced using ammonia. Cough latency and the number of coughs within 3 minutes were determined. Airway responsiveness was assessed using ovalbumin as a sensitizer and characteristic asthma indicators were measured. Results Chloroform and ethyl acetate extracts significantly reduced the number of coughs within 3 minutes, tidal volume, and the percentage of eosinophilic granulocytes, lymphocytes and neutrophils. All extracts decreased airway responsiveness in asthmatic mice compared with the untreated group. Petroleum ether, chloroform and n-butanol extracts lowered the Penh values of asthmatic mice. Petroleum ether and ethyl acetate extracts greatly reduced interleukin-4 expression and the interleukin-4/interferon gamma ratio. Compared with the model group, all extracts reduced mRNA expression of the cysteinyl leukotriene receptor-1 (CysLT1). Conclusions Chloroform extract and ethyl acetate extract displayed obvious antitussive effects and reduced airway inflammation. Thus, these two extracts contain the effective ingredients of Sceptridium ternatum. The active mechanism was ascribed to inhibition of mRNA expression of the CysLT1 receptor in mice with bronchial asthma.


2019 ◽  
Vol 9 (2) ◽  
pp. 19-23
Author(s):  
Rianti Putri ◽  
Rudi Hendra Sy ◽  
Hilwan Yuda Teruna

Macaranga bancana (Euphorbiaceae) known as “mahang” which is wide spread in Indragiri Hulu, Riau Province and also believed to has medicinal properties. This study to evaluate the secondary metabolites contents and toxicity activity from various extracts of M. bancana leaves. Extraction process were done by using maceration method with various solvents, such as n-hexane, dichloromethane, ethyl acetate, methanol, and ethanol. Toxicity analysis was done by Brine Shrimp Lethality Test (BSLT). The results of phytochemical screening showed that M. bancana leaves contain terpenoid, steroid, flavonoid and phenolic. Toxicity analysis showed that n-hexane extracts prossessed the highest level of toxicity followed by dichloromethane, ethyl acetate and methanol extracts with LC50 value of 65; 87; 227; 605 μg/mL, respectively while ethanol extract has not toxic. Therefore, it could be concluded that M. bancana has good toxicity level and could be used as screening for anticancer.


Author(s):  
Carla Wulandari Sabandar ◽  
Juriyati Jalil ◽  
Norizan Ahmat ◽  
Nor-Ashila Aladdin ◽  
Harni Sartika Kamaruddin ◽  
...  

Songi (Dillenia serrata) is a tree endemic to Southeast Sulawesi and its stem bark been used in folk medicine. Nonetheless, only a handful scientific knowledge regarding chemistry and biological activities has been investigated on the plant. The present study aimed to investigate the antioxidant and xanthine oxidase (XO) inhibitory activity of the stem bark of the plant. Methanol extract and organic fractions (petroleum ether, ethyl acetate, and methanol) of the dried powdered stem bark of songi were evaluated for phytochemical screening, total phenolic (TPC), total flavonoid contents (TFC), DPPH, FRAP, and XO in vitro assays. Flavonoids, tannins, terpenoids, steroids, and saponins present in the extract. TPC and TFC in extract were 59.2 mg GAE/g and 23.4 mg QE/g. The contents in organic fractions were in solvent-dependent manner (methanol>ethyl acetate>petroleum ether). Extract and fractions scavenged DPPH radicals (48.2–59.7%) at 100 μg/mL compared to ascorbic acid, trolox, and gallic acid (90.3–93.8%). FRAP values varied from 0.8–3.4 μg/μg equivalent trolox amount (quercetin and gallic acid were 25.7 dan 32.4 μg/μg, respectively). They also inhibited xanthine oxidase (15.3–50.3%) at 100 μg/mL (allopurinol, 98.2%). The study concluded the potential of methanol extract and organic fraction of the stem bark of songi, thus highlighted the prospect of songi to be used in herbal and drugs development from nature.


2019 ◽  
Vol 1 (4) ◽  
pp. 199-216 ◽  
Author(s):  
Khine Zar Wynn Lae ◽  
Su Swe Su ◽  
Nwet Nwet Win ◽  
Ni Ni Than ◽  
Hla Ngwe

A large number of the plants are claimed to possess the antibiotic properties in the traditional system and are also used extensively by the tribal people throughout the world. It is now mostly thought that nature has given the cure of every disease in one form or another. Plants have been known to cure people from various diseases in Ayurveda. This research focused on the screening of phytochemicals and some biological activities of Phyllanthus albizzioides. The research showed that the ethanol extracts were found to be greater chemical constituents than watery extracts. Among the chemical constituents, steroid compounds were observed in highest amount in ethanol extract and the second highest in flavonoid compounds followed by tannin compounds and pheolic compounds. Furthermore, the ethanol extracts were more effective than the watery extracts in all tested biological activities such as antioxidant, anti-diabetic, cytotoxicity, antimicrobial, antitumor and NO inhibition activities. A cyclohexanone compound was isolated from the chloroform extract of the stem bark of P. albizzioides. The relative structure was determined to be 4,5-dihydroxy-3-methyl-cyclohex-2-enone on the basic of HRESIMS, 1H NMR and 13C NMR spectroscopic analyses, including 2D NMR experiments.


2020 ◽  
Vol 17 (2) ◽  
pp. 158-168
Author(s):  
Nusrat Shafiq ◽  
Sahrish Shafiq ◽  
Naila Rafiq ◽  
Shagufta Parveen ◽  
Irum Javed ◽  
...  

Seriphidium plants were reported to be utilized by local communities to cure their ailments in the form of paste, tincture, tea, nutraceuticals due to their medicinal properties. Most of the species are used as food, forage and ornamentals, etc. Due to the significant properties of the Seriphidium plants, the present article was designed to compile the data of major aspects and chemical constituents of genus Seriphidium responsible for their significant uses. This review article comprehensively covers the biological potential of different plants with their secondary metabolites and describes an overview of the biological activities of the different species belonging to genus Seriphidium. The main secondary metabolites isolated from different species of the genus Seriphidium are triterpenoid, sesquiterpenes, flavonoids, coumarins, chromones, anthraquinones, polyphenols and their glycosides, phenolic derivatives, balchanins, costunolides, Vulgarin, pyridine derivatives, ceramides, biphenyls, isoflavones. All these compounds are used in the drug industry.


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