Pharmacy Freak Editorial Team

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

Gelatin is a versatile protein obtained by controlled hydrolysis of collagen and is central to many pharmaceutical applications including capsule shells, stabilizers and drug delivery matrices. B. Pharm students should master gelatin chemistry—amino acid composition, gelation mechanism, bloom strength, viscosity and molecular weight distribution—along with common sources (bovine, porcine, fish), extraction methods (acidic Type A, … Read more

Proteins – chemistry, sources, preparation, evaluation, preservation, storage, therapeutic uses and commercial utility Proteins are polymers of amino acids linked by peptide bonds and exhibit primary, secondary, tertiary and quaternary structures essential for biological function. B. Pharm students must understand protein chemistry, natural and recombinant sources, extraction and purification techniques (chromatography, ultrafiltration, dialysis), analytical evaluation … Read more

Honey is a natural, complex substance produced by bees from floral nectar and honeydew and is important for pharmacy studies due to its chemistry, therapeutic uses, and commercial utility. This overview summarizes honey’s chemical composition—major sugars, enzymes, organic acids, and phenolic compounds—and common botanical and geographical sources. It outlines preparation and processing methods, evaluation parameters … Read more

Tragacanth – chemistry, sources, preparation, evaluation, preservation, storage, therapeutic uses and commercial utility MCQs With Answer Tragacanth is a natural gum from Astragalus species used widely as a pharmaceutical excipient. Its chemistry features complex polysaccharides—mainly water-soluble tragacanthin and swelling bassorin—giving high viscosity, pseudoplastic rheology and excellent mucilage formation. B.Pharm students should master sources, collection and … Read more

Agar — chemistry, sources, preparation, evaluation, preservation, storage, therapeutic uses and commercial utility is a vital topic for B.Pharm students. Agar is a natural polysaccharide composed mainly of agarose and agaropectin, extracted from red algae such as Gelidium and Gracilaria. Understanding its chemistry (monomer units, sulfate content), preparation (alkali treatment, purification), analytical evaluation (gel strength, … Read more