scholarly journals Six New Triterpenoids from the Aerial Parts of Maytenus diversifolia

2016 ◽  
Vol 11 (8) ◽  
pp. 1934578X1601100 ◽  
Author(s):  
Narumi Anoda ◽  
Mayumi Matsunaga ◽  
Miwa Kubo ◽  
Kenichi Harada ◽  
Yoshiyasu Fukuyama
Keyword(s):  
Chemical Transformation ◽  
Brine Shrimp ◽  
Spectroscopic Data ◽  
Meoh Extract ◽  
Brine Shrimp Lethality ◽  
Aerial Parts

Five new ursane-type triterpenoids 1-5, and one new oleanane-type triterpenoids 7 were isolated from the MeOH extract of the aerial parts of Maytenus diversifolia. Their structures were elucidated by analyzing spectroscopic data and chemical transformation. Compounds 3 and 5 exhibited significant lethal activity in the brine shrimp lethality test (BST).

scholarly journals Cytotoxic Activity of Two Limonoids Isolated From Swietenia mahagoni by Using Brine Shrimp Lethality Bioassay

1970 ◽  
pp. 1-6
Author(s):  
AKM Shahidur Rahman ◽  
AK Azad Chowdhury ◽  
Hossain Reza ◽  
Mohammad Shawkat Ali ◽  
Manzurur Rahman Shah Choudhury ◽  
...  
Keyword(s):  
Cytotoxic Activity ◽  
Key Words ◽  
Column Chromatography ◽  
Brine Shrimp ◽  
Meoh Extract ◽  
Brine Shrimp Lethality ◽  
Swietenia Mahagoni

Solvent partitioning followed by column chromatography of the MeOH extract of the seeds of Swietenia mahagoni afforded two limonoids, swietenolide (compound 1) and 2-hydroxy-3-O-tigloylswietenolide (compound 2), later one is new compound. The compounds were identified by spectroscopic means. The cytotoxic activity of these compounds was assessed by using the conventional brine shrimp lethality bioassay. While both compounds were found to have moderate cytotoxic activity, compound 2 displayed overall more potent activity than compound 1. Key words: Cytotoxic; Limonoid; Swietenia mahagoni; Brine shrimp lethality bioassay DOI: 10.3329/bjpp.v24i1.5729Bangladesh J Physiol Pharmacol 2008; 24(1&2) : 1-6

scholarly journals Three New Bibenzyls from the Twigs of Smilax longifolia

2017 ◽  
Vol 12 (12) ◽  
pp. 1934578X1701201
Author(s):  
Yuka Imura ◽  
Kenichi Harada ◽  
Miwa Kubo ◽  
Yoshiyasu Fukuyama
Keyword(s):  
Brine Shrimp ◽  
Spectroscopic Data ◽  
Brine Shrimp Lethality ◽  
New Compounds

Three new bibenzyl compounds, 1-3, were isolated along with the previously known bibenzyls 4-6, one diarylpropanoid 7, and three diarylheptanoids 8-10 from the twigs of Smilax longifolia. The structures of the new compounds were elucidated by analyzing their spectroscopic data and comparing them with those of known compounds. Diarylheptanoid 9 exhibited potent lethality in the brine shrimp lethality test (BST).

scholarly journals Evaluation of Biological Activities of Evolvulus Nummularius L. through Insecticidal, Insect Repellency and Brine Shrimp Lethality Tests

2014 ◽  
Vol 8 ◽  
pp. 101-104
Author(s):  
Md Moniruzzaman ◽  
Nayeema Parvin ◽  
Sabina Sultana ◽  
Mohammad Abdullah ◽  
Ataur Rahman Khan ◽  
...  
Keyword(s):  
Tribolium Castaneum ◽  
Brine Shrimp ◽  
Biological Activities ◽  
Artemia Salina ◽  
Moderate Activity ◽  
Meoh Extract ◽  
Brine Shrimp Lethality ◽  
Whole Plant ◽  
Chcl3 Extract ◽  
Brine Shrimp Lethality Assay

Assessment of Evolvulus nummularius L. through whole plant extracts (collected in petroleum ether [Pet.E.], chloroform [CHCl3] and methanol [MeOH]) were made against Tribolium castaneum (Hbst.) for insecticidal and insect repellency and against Artemia salina L. for brine shrimp lethality, and the results were promising. The LC50 values against T. castaneum adults for Pet.E. extract were 1.280, 1.220, 1.096 and 1.030?g cm-2; for CHCl3 extract 3.249, 2.990, 2.526 and 2.204?g cm-2; and for MeOH extract 2.925, 1.899, 1.875 and 1.789?g cm-2, respectively for 12, 24, 36 and 48h of exposure. The intensity of activity could be arranged in a descending order: Pet.E. extract> MeOH extract> CHCl3 extract. For repellency, CHCl3 and MeOH extracts offered moderate activity (P <0.01), but the Pet.E. extract did not show efficacy against the beetles. The same extracts responded positively in brine shrimp lethality assay where the LC50 values for Pet.E. extract were 141.553, 98.941, 24.684 and 8.560ppm; for CHCl3 extracts 699.048, 366.663, 326.0039 and 40.114ppm; and for MeOH extracts 2336.982, 1258.605, 355.962 and 137.0589ppm respectively for 12, 18, 24 and 30h of exposure. However, the intensity of activity could be arranged in a descending order: Pet.E. extract> CHCl3 extract> MeOH extract. DOI: http://dx.doi.org/10.3329/jles.v8i0.20153 J. Life Earth Sci., Vol. 8: 101-104, 2013

scholarly journals A New 1,6-Benzoxazocine-5-one Alkaloid isolated from the Aerial Parts of Peristrophe lanceolaria

2014 ◽  
Vol 9 (10) ◽  
pp. 1934578X1400901 ◽  
Author(s):  
Wasana Prapalert ◽  
Dammrong Santiarworn ◽  
Saisunee Liawruangrath ◽  
Boonsom Liawruangrath ◽  
Stephen G. Pyne
Keyword(s):  
Antioxidant Activity ◽  
Spectroscopic Data ◽  
Meoh Extract ◽  
Aerial Parts ◽  
Dpph Method ◽  
First Time

A new 1,6-benzoxazocine-5-one alkaloid has been isolated as its butyl acetal derivative (1) along with peristrophine from the n-BuOH and EtOAc fractions of the crude MeOH extract of the aerial parts of Peristrophe lanceolaria growing in Thailand. The structures of these compounds were elucidated on the basis of their spectroscopic data. These compounds were isolated for the first time from P. lanceolaria. The EtOAc and n-BuOH fractions also possessed significant antioxidant activity with IC50 values of 57 and 50 μg/mL, respectively (DPPH method), whereas 1 had an IC50 value of 23 μg/mL.

scholarly journals Cytotoxic Flavonoids from the Aerial Parts of Stachys lavandulifolia Vahl

2018 ◽  
Vol 24 (4) ◽  
pp. 332-339 ◽  
Author(s):  
Mohammad-Reza Delnavazi ◽  
Parisa Saiyarsarai ◽  
Saeedeh Jafari-Nodooshan ◽  
Mahnaz Khanavi ◽  
Saeed Tavakoli ◽  
...  
Keyword(s):  
Essential Oil ◽  
Mtt Assay ◽  
Brine Shrimp ◽  
Chloroform Extract ◽  
Assay Method ◽  
Medicinal Uses ◽  
Brine Shrimp Lethality ◽  
Aerial Parts ◽  
Western Asia ◽  
Drug Development Research

Background: Stachys lavandulifolia Vahl is a herbaceous plant distributed in the west and south western Asia. Despite of the wide medicinal uses, there are some reports on toxicity potential of this plant. In present study we attempted to evaluate the toxicity and to characterize the cytotoxic principles of S. lavandulifolia. Methods: Brine shrimp lethality test (BSLT) was used to evaluate the general toxicity of the extracts and essential oil obtained from the aerial parts of S. lavandulifolia. Phytochemical constituents of the active extract were investigated using various chromatographic and spectroscopic methods. GC and GC-MS were also used to analyze the plant essential oil. GC and GC-MS were used to analyze the plant essential oil. Cytotoxic activities of the isolated compounds were also evaluated using MTT assay method. Results: In brine shrimp lethality test (BSLT), chloroform extract and the plant essential oil exhibited the most toxicity against Artemia salina larvae (LD50: 121.8±5.6 and 127.6±14.7 µg ml-1, respectively). GC and GC-MS analyses of essential oil led to the characterization of forty compounds of which α-bisabolol (23.85%) and thymol (17.88%) were identified as the main constituents. Nine flavonoids, Pachypodol (1), chrysosplenetin (2), kumatakenin (3), velutin (4), penduletin (5), viscosine (6), chrysoeriol (7), hydroxygenkwanin (8) and apigenin (9) were isolated from the chloroform extract of S. lavandulifolia. Among the isolated compounds, chrysosplenetin (2), a polymethoxylated flavonoid, was found as the most toxic compound toward MDA-MB-23 and HT-29 cells, with IC50 values of 88.23 and 116.50 µg ml-1, respectively. Furthermore, chrysosplenetin (2), kumatakenin (3) and viscosine (6) with selectivity indices of 2.70, 2.59 and 3.33, respectively, showed higher preferential toxicity against MDA-MB-23 cells in comparison with tamoxifen (SI:2.45). Conclusion: This study reports methoxylated flavonoids as compounds which could be involved in toxicity of S. lavandulifolia. The results of MTT assay also suggest some of these compounds as appropriate candidates for anti-cancer drug development research.

scholarly journals South Africa’s Best BARK Medicines Prescribed at the Johannesburg Muthi Markets for Skin, Gut, and Lung Infections: MIC’s and Brine Shrimp Lethality

Antibiotics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 681
Author(s):  
Gugulethu P. Khumalo ◽  
Nicholas J. Sadgrove ◽  
Sandy F. Van Vuuren ◽  
Ben-Erik Van Wyk
Keyword(s):  
South Africa ◽  
Brine Shrimp ◽  
Bark Extract ◽  
Respiratory Pathogens ◽  
Medicinal Uses ◽  
Brine Shrimp Lethality ◽  
Sclerocarya Birrea ◽  
Lung Infections ◽  
Tract Infections

Indigenous trade of medicinal plants in South Africa is a multi-million-rand industry and is still highly relevant in terms of primary health care. The purpose of this study was to identify today’s most traded medicinal barks, traditionally and contemporaneously used for dermatological, gastrointestinal, and respiratory tract infections; then, to investigate the antimicrobial activity and toxicity of the respective extracts and interpret outcomes in light of pharmacokinetics. Thirty-one popularly traded medicinal barks were purchased from the Faraday and Kwa Mai-Mai markets in Johannesburg, South Africa. Information on the medicinal uses of bark-based medicines in modern commerce was recorded from randomly selected traders. The minimum inhibitory concentration (MIC) method was used for antimicrobial screening, and brine shrimp lethality was used to determine toxicity. New medicinal uses were recorded for 14 bark species. Plants demonstrating some broad-spectrum activities against tested bacteria include Elaeodendron transvaalense, Erythrina lysistemon, Garcinia livingstonei, Pterocelastrus rostratus, Rapanea melanophloeos, Schotia brachypetala, Sclerocarya birrea, and Ziziphus mucronata. The lowest MIC value of 0.004 mg/mL was observed against Staphylococcus epidermidis for a dichloromethane bark extract of E. lysistemon. The tested medicinal barks were shown to be non-toxic against the Artemia nauplii (brine shrimp) bioassay, except for a methanol extract from Trichilia emetica (69.52% mortality). Bacterial inhibition of bark extracts with minimal associated toxicity is consistent with the safety and valuable use of medicinal barks for local muthi market customers. Antimicrobial outcomes against skin and gastrointestinal pathogens are feasible because mere contact-inhibition is required in vivo; however, MIC values against respiratory pathogens require further explaining from a pharmacokinetics or pharmacodynamics perspective, particularly for ingested rather than smoked therapies.

Antidiabetic and Antioxidant Activities of Major Flavonoids of Cynanchum acutum L. (Asclepiadaceae) Growing in Egypt

2008 ◽  
Vol 63 (9-10) ◽  
pp. 658-662 ◽  
Author(s):  
Ghada A. Fawzy ◽  
Hossam M. Abdallah ◽  
Mohamed S. A. Marzouk ◽  
Fathy M. Soliman ◽  
Amany A. Sleem
Keyword(s):  
Blood Glucose ◽  
Spectroscopic Data ◽  
Methanolic Extract ◽  
Antioxidant Activities ◽  
First Report ◽  
Insulin Levels ◽  
Butanol Fraction ◽  
Aerial Parts ◽  
First Time

Seven flavonoids were isolated from the butanol fraction of the methanolic extract of the aerial parts of Cynanchum acutum L. (Asclepiadaceae). All of which have been isolated for the first time from the genus Cynanchum. Their structures were established as quercetin 3-O-β-galacturonopyranoside (1), quercetin 7-O-β-glucopyranoside (2), tamarixtin 3-O-β-galacturonopyranoside (3), kaempferol 3-O-β-galacturonopyranoside (4), 8-hydroxyquercetin 3-O-β-galactopyranoside (5), tamarixtin 3-O-α-rhamnopyranoside (6), and tamarixtin 7-O-α-arabinopyranoside (7) on the basis of their chromatographic properties, chemical and spectroscopic data. The major isolated flavonoids 1, 2 and 3 were found to exhibit significant antioxidant and antidiabetic activities (by measuring blood glucose and insulin levels). This is the first report about the antioxidant and antidiabetic activities of compounds 1 - 3.

Two New Cyclolignan Glycosides from Acanthus ilicifolius

2004 ◽  
Vol 59 (3) ◽  
pp. 341-344 ◽  
Author(s):  
Jun Wu ◽  
Si Zhang ◽  
Qingxin Li ◽  
Jianshe Huang ◽  
Zhihui Xiao ◽  
...  
Keyword(s):  
Spectroscopic Data ◽  
Structure Elucidation ◽  
Aerial Parts ◽  
Acanthus Ilicifolius

Two new cyclolignan glycosides, (+)-lyoniresinol 3a-O-α-D-galactopyranosyl-(1 → 6)-β -D-glucopyranoside (1) and (+)-lyoniresinol 2a-O-α-D-galactopyranosyl-3a-O-β -D-glucopyranoside (2) were isolated from the aerial parts of Acanthus ilicifolius. Their structure elucidation is based on the analyses of spectroscopic data

scholarly journals Isolasi, Identifikasi Senyawa Alkaloid dari Daun Rivina humilis L. serta Uji Sitotoksik Menggunakan Metode BSLT (Brine Shrimp Lethality Test)

2015 ◽  
Vol 18 (2) ◽  
pp. 67-72
Author(s):  
Edwin Fadhly ◽  
Dewi Kusrini ◽  
Enny Fachriyah
Keyword(s):  
Brine Shrimp ◽  
Brine Shrimp Lethality

Penelitian tentang penapisan fitokimia, isolasi, identifikasi alkaloid dari daun getih-getihan (Rivina humilis L.) serta uji sitotoksisitas dengan metode BSLT telah dilakukan. Isolasi alkaloid diawali dengan maserasi daun Rivina humilis L. dengan pelarut etanol 96%, dilanjutkan penghilangan klorofil dengan menggunakan aquades (1:1). Selanjutnya hasil maserasi tersebut dipartisi dengan pelarut n-heksana, diperoleh ekstrak n-heksana dan ekstrak etanol-air. Ekstrak etanol-air dilakukan isolasi alkaloid hingga diperoleh ekstrak alkaloid berwarna coklat kemerahan sebanyak 0,7323 gram. Pemisahan alkaloid dilakukan dengan metode kromatografi lapis tipis preparatif dan uji kemurniannya menggunakan metode KLT dengan berbagai eluen didapatkan 1 noda pada pita A1. Isolat alkaloid A1 berbentuk padatan putih dan mempunyai titik leleh sebesar 290-292°C. Hasil analisis spektrofotometer UV-Vis memperkirakan bahwa senyawa alkaloid A1 mempunyai struktur dasar indol. Analisis dengan spektofotometer FTIR menunjukkan adanya gugus N-H, O-H, =C-H aromatik, CH2, C=N, C=O, C=C aromatik, dan C-O eter. Sedangkan kromatogram LC-MS menunjukkan puncak tertinggi pada waktu retensi 1,8 menit dan memiliki bobot molekul sebesar 267.27 g/mol. Hasil uji sitotoksik menunjukkan bahwa ekstrak alkaloid mempunyai harga LC50 sebesar 25,439 ppm.

scholarly journals Isolasi Metabolit Sekunder dari Ekstrak Etil Asetat Kulit Batang Meranti Rambai (Shorea acuminata Dyer)

2017 ◽  
Vol 1 (1) ◽  
pp. 19-26
Author(s):  
Enda Mora ◽  
Septi Muharini ◽  
Emrizal Emrizal ◽  
Rahayu Utami ◽  
Mella Silfia Andriani
Keyword(s):  
Brine Shrimp ◽  
Brine Shrimp Lethality

Telah dilakukan isolasi dan pengujian sitotoksik ekstrak etil asetat kulit batang merantirambai (Shorea acuminata Dyer). Ekstraksi dilakukan dengan maserasi bertingkat dan uji sitotoksikdengan metode Brine Shrimp Lethality Test (BSLT). Isolasi dilakukan dengan kromatografi kolommemakai sistem gradient dan diperoleh senyawa D1, berupa amorf berwarna putih sebanyak18 mg dengan titik leleh 280-282oC. Berdasarkan hasil reaksi dengan reagen Liebermann-Buchard(yaitu warna orange kecoklatan) dan hasil karakterisasi dengan spektroskopi UV, IR, 1H-RMI, dan 13CRMI,maka dapat disimpulkan bahwa senyawa D1 termasuk golongan terpenoid. Dari hasil pengujiansitotoksik ekstrak etil asetat didapatkan nilai LC50 sebesar 3,68 ppm dan dapat dinyatakan bahwaekstrak etil asetat kulit batang meranti rambai memiliki sifat sangat toksik terhadap kematian Artemiasalina Leach.

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