Publications by authors named "Muhammad I Tousif"

Consuming traditional petroleum-derived diesel fuel has long been associated with issues such as the depletion of natural energy resources. To solve these challenges, an alternate source like as biodiesel is an appealing option. Seed oils have long been recognized as an abundant and diverse source of biodiesel.

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Article Synopsis
  • Citrus fruit trees are key commercial crops in Pakistan, providing significant foreign exchange, with the Foster variety known for its valuable fruits and juices.
  • The study focused on extracting essential oil from the peels of the fruit, revealing major components like limonene and caryophyllene through GC-MS analysis, along with examining its antioxidant and enzyme inhibition properties.
  • Results indicated the essential oil has weak free radical inhibition but shows potential in antioxidant assays and as an inhibitor for enzymes linked to diabetes and skin care, suggesting its applicability in nutraceuticals and cosmetics.
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Tanacetum falconeri is a significant flowering plant that possesses cytotoxic, insecticidal, antibacterial, and phytotoxic properties. Its chemodiversity and bioactivities, however, have not been thoroughly investigated. In this work, several extracts from various parts of T.

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Unlike simple molecular screening, a combined hybrid computational methodology has been applied which includes quantum chemical methods, molecular docking, and molecular dynamics simulations to design some novel ketonic derivatives. The current study contains the derivatives of an experimental ligand which are designed as a trade-off between drug likeness and inhibition strength. We investigate the interaction of various newly designed ketonic compounds with the breast cancer receptor known as the Estrogen Receptor Alpha (ERα).

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  • - Human neutrophil elastase (HNE) is an important enzyme linked to inflammatory diseases like COPD and cystic fibrosis, making HNE inhibitors potentially valuable for treatment.
  • - Terpenoids, particularly β-caryophyllene and geraniol, found in plants, have been identified as effective natural inhibitors of HNE, suggesting they could lead to new therapies for inflammatory conditions.
  • - This review presents a comprehensive exploration of terpenoids from natural sources, documenting 251 compounds and discussing their chemical diversity and effectiveness in inhibiting HNE activity up to 2022.
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Enzymes are biologically active complex protein molecules that catalyze most chemical reactions in living organisms, and their inhibitors accelerate biological processes. This review emphasizes medicinal food plants and their isolated chemicals inhibiting clinically important enzymes in common diseases. A mechanistic overview was investigated to explain the mechanism of these food bases enzyme inhibitors.

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Jacquin is a flowering plant that belongs to the coffee family. As a rich source of polyphenols with significant antioxidant potential, may have health benefits. Therefore, in the current work, ethanolic extract of aerial parts and its n-hexane, ethyl acetate, and n-butanol soluble fractions were analyzed for their antioxidant potential and various enzyme inhibition properties.

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L. (guava) is a small tree known for its fruit flavor that is cultivated almost around the globe in tropical areas. Its fruit is amazingly rich in antioxidants, vitamin C, potassium, and dietary fiber.

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Roots of are a rich source of phytochemicals with high antioxidant potential and thus may possess health benefits. This study used the LC-MS technique to identify phytoconstituents in roots extract/fractions. Results revealed that -butanol fraction and ethanolic extract contained total phenolic and flavonoid contents with values of 155.

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Objectives: Owing to extraordinary healing power, Terminalia species have been used in traditional medicine systems to treat various diseases. Many folklore uses of Terminalia neotaliala (Madagascar's almond) included treating arterial hypertension, diabetes, diarrhea, dysentery, colic, oral and digestive candidiasis, intestinal parasitic infections, inflammatory skin conditions, postpartum care, and mycotic infections but nevertheless scientifically explored for its medicinal and pharmacological importance. Therefore, the current study intended to prepare methanolic extract and its fractionation with hexane, chloroform, and butanol followed by evaluation of their polyphenolic content, biological activities, and LCMS analysis.

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In our continuous screening for bioactive microbial natural products, the culture extracts of a terrestrial Actinomycetes sp. GSCW-51 yielded two new metabolites, i. e.

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The present work describes medicinal potential and secondary metabolic picture of the methanol extract (PP-M) of Polygonum plebeium R.Br. and its fractions; hexane (PP-H), ethyl acetate (PP-E) and water (PP-W).

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Meroterpenoids are secondary metabolites formed due to mixed biosynthetic pathways which are produced in part from a terpenoid co-substrate. These mixed biosynthetically hybrid compounds are widely produced by bacteria, algae, plants, and animals. Notably amazing chemical diversity is generated among meroterpenoids via a combination of terpenoid scaffolds with polyketides, alkaloids, phenols, and amino acids.

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Suaeda fruticosa is an edible medicinal halophyte known for its traditional uses. In this study, methanol and dichloromethane extracts of S. fruticosa were explored for phytochemical, biological and toxicological parameters.

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is one of the most important plant genera to have conventional folklore importance, and hence is a potential source of bioactive compounds. Thus, the present study was designed to explore the therapeutic potential of Desf., a relatively under-explored medicinal plant species.

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Serine protease, Human Neutrophil Elastase (HNE), has been shown to be useful in medical science, however, its over production and malfunctioning may produce devastating effects and cause serious damage to the host. Unfortunately, the present approved drug, sivelestat, only alleviates the symptoms of the diseases caused by malfunction of HNE but not the disease progression. Therefore, there is a crucial need to search potent and safer molecules as elastase inhibitors and to develop better anti-inflammatory drugs in future.

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Two new cryptosporioptide-derived polyketides cryptosporioptides A (2) and B (3) were isolated from the extract of endophytic fungus Cryptosporiopsis sp. associated with the shrub, Viburnum tinus. The structures of the isolates were determined through spectral analysis including 1D NMR ((1)H, (13)C) and 2D NMR (HSQC, HMBC, COSY) techniques, HR-FAB-MS and by comparison with the reported data of cryptosporioptide (1).

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The electronic circular dichroism (ECD) spectra of two sesquiterpenoids (1 and 2) related to oplopanone, obtained from a methanolic extract of the plant Serphidium stenocephalum (Artemisia stenocephala), were measured and reproduced by means of time-dependent density functional theory (TDDFT) calculations, establishing their absolute configuration. The application of ketone octant rule for carbonyl n-π* ECD band to compounds 1 and 2, which include an acyclic carbonyl group, was critically assessed. The peculiar oplopanone skeleton makes a straightforward application of the octant rule impossible, because of the uncertainty related to the shape of the so-called third nodal surface separating front and back octants.

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An antibiotic polyketide, Cryptosporioptide (1) was isolated from the culture extract of the endophytic fungus Cryptosporiopsis sp. The structure of Cryptosporioptide has been established with the help of 1D ((1)H, (13)C), 2D NMR (HSQC, HMBC, COSY, NOESY) techniques and mass spectrometry (FABMS, HRFABMS). The absolute configuration was established by means of electronic circular dichroism (ECD).

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