MCQs Quiz

Introduction: Chaulmoogra oil is a historically important natural oil derived from seeds of Hydnocarpus and related species, valued for its unique cyclopentenyl fatty acids such as chaulmoogric and hydnocarpic acids. This topic covers chaulmoogra oil chemistry, botanical sources, methods of preparation (expression, solvent extraction, hydrolysis, and esterification), analytical evaluation (acid value, saponification, iodine value, GC … Read more

Castor oil is a unique vegetable oil rich in ricinoleic acid, a hydroxylated fatty acid that defines its chemistry and pharmaceutical value. B.Pharm students should master its botanical sources (Ricinus communis), methods of preparation (cold pressing, solvent extraction, refining), and key physicochemical properties (saponification, iodine, acid values, refractive index). Understanding evaluation, preservation, storage and quality … Read more

Lipids are a diverse class of biomolecules central to pharmacy, encompassing fatty acids, triglycerides, phospholipids and sterols. This introduction covers lipid chemistry, natural and industrial sources, extraction and preparation methods (Soxhlet, Folch, Bligh & Dyer, transesterification), analytical evaluation (iodine, saponification, peroxide, acid values; GC, HPLC, TLC), preservation and storage strategies (antioxidants, cold, inert atmosphere), therapeutic … Read more

Pepsin – chemistry, sources, preparation, evaluation, preservation, storage, therapeutic uses and commercial utility is a concise guide for B.Pharm students exploring this important gastric proteolytic enzyme. Pepsin is an aspartic endopeptidase (≈34 kDa) derived from pepsinogen, with optimal activity at pH 1.5–2 and specificity for peptide bonds near aromatic residues. Key topics include common sources … Read more

Streptokinase is a bacterial plasminogen activator widely studied for its thrombolytic properties. This concise primer for B.Pharm students covers streptokinase chemistry, microbial sources, fermentation and recombinant preparation, purification and potency evaluation, formulation, preservation and storage strategies (including lyophilization and stabilizers), therapeutic uses (acute myocardial infarction, pulmonary embolism, DVT), safety, antigenicity and comparative commercial utility versus … Read more

Urokinase is a serine protease used as a thrombolytic agent; its chemistry involves a single‑chain prourokinase (scuPA) activated to a two‑chain enzyme (uPA) that converts plasminogen to plasmin. Sources include human urine and recombinant expression systems (e.g., CHO cells). Preparation covers fermentation, purification (ion‑exchange, affinity, gel filtration), and formulation as sterile lyophilized product. Evaluation uses … Read more

Serratiopeptidase (serrapeptase) is a potent proteolytic enzyme of microbial origin with applications across pharmaceutical and nutraceutical sectors. This introduction covers its chemistry as a zinc-dependent metalloprotease, microbial sources (Serratia spp., silkworm gut isolates), fermentation-based preparation, purification (precipitation, ion-exchange, gel-filtration), analytical evaluation (casein/azocasein assays, zymography, SDS-PAGE, HPLC), and stabilization strategies (lyophilization, stabilizers, cold storage). Therapeutic uses … Read more

Bromelain is a proteolytic enzyme complex derived primarily from the stem and fruit of Ananas comosus (pineapple). It includes cysteine proteases with molecular isoforms that show optimum activity around neutral pH and moderate temperatures. Bromelain extraction and preparation involve homogenization, centrifugation, ammonium sulfate precipitation, dialysis and chromatographic purification, while evaluation uses activity assays (casein/azocasein), SDS-PAGE … Read more

Introduction Papain is a plant-derived proteolytic enzyme (a cysteine protease) obtained primarily from the latex of Carica papaya. This introduction covers papain chemistry, natural sources, extraction and preparation methods, purification and evaluation (activity assays, SDS-PAGE, zymography), and preservation and storage strategies (lyophilization, stabilizers, temperature control). Clinical and therapeutic uses include wound debridement, digestive aids and … Read more

Introduction: Casein is a major milk phosphoprotein integral to pharmaceutical science, encompassing chemistry, sources, preparation, evaluation, preservation, storage, therapeutic uses and commercial utility. B.Pharm students should understand casein chemistry (phosphoserine residues, amphiphilic domains, casein micelle architecture), common sources (bovine, caprine milk), preparation methods (acid precipitation, rennet coagulation, spray drying), analytical evaluation (Kjeldahl, SDS-PAGE, FTIR, phosphorus … Read more