Biotechnological Methods for Selection of High-Yielding Cell Lines and Production of Secondary Metabolites in Medicinal Plants

2008 ◽  
pp. 187-201
Author(s):  
Donald P. Briskin
2019 ◽  
Vol 23 (4) ◽  
pp. 770-776
Author(s):  
HUSNUNNISA HUSNUNNISA ◽  
Friardi ISMED ◽  
Muhammad TAHER ◽  
Solachuddin Jauhari Arief ICHWAN ◽  
Amri BAKHTIAR

2021 ◽  
Vol 72 (1) ◽  
pp. 100-110
Author(s):  
Nusrat Shafiq ◽  
Farah Yasmin ◽  
Sadia Noreen ◽  
Alina Shahzad ◽  
Zill-I-huma Nazli ◽  
...  

Although Pakistan is stacked with enormous varieties of medicinal plants, only a little proportion of these plants has been evaluated for their medicinal and therapeutic properties. Herein, four indigenous medicinal plants Citrus sinenesis, Citrus paradiasii, Moringa olifera, and Hibiscus rosa-sinenesis were collected and subjected to phytochemical analyses to scrutinize the presence of secondary metabolites. Qualitative analy�sis showed the presence of an array of secondary metabolites in the selected plants, which were further corroborated by high-performance liquid chromatography. Results revealed the presence of 33.24, 21.04, 15.2 ppm gallic acid in methanol, ethyl acetate and n-hexane fraction of C. sinensis peels extract, respectively. C. paradaissi peels consist of 24.06, and 18.24 ppm of gallic acid and caffeic acid, respectively, in methanol and chloroform fractions, whereas its methanolic seeds extract contain caffeic acid as a major component (10.63 ppm). H. rosa-sinenesis has shown p-coumaric acid, caffeic acid, and gallic acid at 35.26, 15.04, and 11.4 ppm, respectively. M. olifera contained 3.24 ppm gallic acid in pods extract while stems and leaves extract contain a very low amount. Anticancer profile evinced that Citrus sinensis extract showed the highest percent inhibition (142.746%) of human liver cancer (Hep G2) cell lines followed by H. rosa-sinensis (132.49%), C. paradaisii (82.39%) and M. olifera (68.0%). The determined IC50 values for antioxidant activity were C. sinenesis (IC50=0.49 mM), C. paradaisii (IC50=0.43 mM), M. olifera (IC50=0.42 mM) and H. rosa-sinensis (IC50=0.41 mM). Conclusively, the selected plants could be an effective alternative and deliverable chemical therapeutic to the pharmaceutical industry due to their excellent biological effects.


2021 ◽  
Vol 59 (1) ◽  
pp. 424-437
Author(s):  
Justyna Stefanowicz-Hajduk ◽  
Barbara Król-Kogus ◽  
Barbara Sparzak-Stefanowska ◽  
Katarzyna Kimel ◽  
J. Renata Ochocka ◽  
...  

Author(s):  
W. C. Noble

SynopsisThe mechanisms of interaction are discussed in general terms; this is followed by a review of interaction which may occur in tinea paedis.The production of penicillin-like and other antibiotics by dermatophyte fungi in lesions of athletes foot may result in the selection of an antibiotic-resistant bacterial flora which, perhaps by production of antibiotic or other secondary metabolites, can reduce the viability of the fungi. The effect on the host is to bring about a change from a fungal skin lesion which is dry and scaly to a bacterial lesion which is macerated and malodorous.


2011 ◽  
Vol 6 (12) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Maria del Rosario Jacobo-Salcedo ◽  
Angel Josabad Alonso-Castro ◽  
Luis A. Salazar-Olivo ◽  
Candy Carranza-Alvarez ◽  
Luis Ángel González-Espíndola ◽  
...  

The antimicrobial effects of the Mexican medicinal plants Guazuma ulmifolia, Justicia spicigera, Opuntia joconostle, O. leucotricha, Parkinsonia aculeata, Phoradendron longifolium, P. serotinum, Psittacanthus calyculatus, Tecoma stans and Teucrium cubense were tested against several human multi-drug resistant pathogens, including three Gram (+) and five Gram (-) bacterial species and three fungal species using the disk-diffusion assay. The cytotoxicity of plant extracts on human cancer cell lines and human normal non-cancerous cells was also evaluated using the MTT assay. Phoradendron longifolium, Teucrium cubense, Opuntia joconostle, Tecoma stans and Guazuma ulmifolia showed potent antimicrobial effects against at least one multidrug-resistant microorganism (inhibition zone > 15 mm). Only Justicia spicigera and Phoradendron serotinum extracts exerted active cytotoxic effects on human breast cancer cells (IC50≤30 μg/mL). The results showed that Guazuma ulmifolia produced potent antimicrobial effects against Candida albicans and Acinetobacter lwoffii, whereas Justicia spicigera and Phoradendron serotinum exerted the highest toxic effects on MCF-7 and HeLa, respectively, which are human cancer cell lines. These three plant species may be important sources of antimicrobial and cytotoxic agents.


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