February 22, 2024

Honey: Physical and chemical tests / Analysis of crude drugs

Honey: Physical and chemical tests / Analysis of crude drugs

Chemical test for Honey

1.Fiehe’s test   Take about 3ml of honey + 2ml of ether and shake thoroughly and allow the 2 layers to separate and evaporate to dryness. The upper etherial layer is separated and put in a china dish and evaporate, to the residue add 1% resorcinol and HCl.    Transient pink colour         Permanent red colour    Pur honey         Adulterated honey(Invert sugar)
2.Molisch’s Test   Honey  is  treated  with  alpha  Napthol and concentrated sulphuric acidPurple colourPresence carbohydrate
3.Reducing Sugar Test   Heat  honey  to  this  add  a  drop  of mixture of Fehling’s solution A & B    Brick    red   colour    of cuprous oxide    Presence monosaccharide


From the above morphological characteristics and chemical tests, the crude drug is identified as Honey.


Kokate CK. Practical Pharmacognosy, 4 edition, VallabhPrakashan. Delhi; 1994: 98

Second Year B Pharm Notes, Syllabus, Books, PDF Subjectwise/Topicwise

S Y B Pharm Sem IIIS Y B Pharm Sem IV
BP301T Pharmaceutical Organic Chemistry II TheoryBP401T Pharmaceutical Organic Chemistry III Theory
BP302T Physical Pharmaceutics I TheoryBP402T Medicinal Chemistry I Theory
BP303T Pharmaceutical Microbiology TheoBP403T Physical Pharmaceutics II Theory
BP304T Pharmaceutical Engineering TheoryBP404T Pharmacology I Theory
BP305P Pharmaceutical Organic Chemistry II PracticalBP405T Pharmacognosy I Theory
BP306P Physical Pharmaceutics I PracticalBP406P Medicinal Chemistry I Practical
BP307P Pharmaceutical Microbiology PracticalBP407P Physical Pharmaceutics II Practical
BP308P Pharmaceutical Engineering PracticalBP408P Pharmacology I Practical
BP409P Pharmacognosy I Practical

Suggested readings