Antiseptics and Disinfectants Benzoin

Department of Technical Education Andhra Pradesh Name: BVSN Murty Designation : Lecturer in Pharmacy Branch: PHARMACY Institute: Govt. Polytechnic for Women, Srikakulam Year/Semester: I Year Subject: Pharmacognosy Subject code: PH-103 Topic: Antiseptics and Disinfectants Duration: 50 Mts Sub Topic: Benzoin Teaching Aids: PPT, Photographs

Objectives On completion of this period you would be able to learn about: Definition of Antiseptics and Disinfectants Monograph of Benzoin

Known to Unknown 1.Have you heard about Sambrani in Telugu? 2.Can you name one TSincture of it in the market? 3.What is the official name of it? For what purpose its vapours are used for children?

Antiseptics and Disinfectants Definition : Antiseptics are the chemical sterilizing substances which are used to kill pathogenic microbes or for prevention of their growth They are directly applied to tissues, to broken skin after burns and wounds Disinfectants are the substances which are used for destruct the bacteria and their spores and are not directly applied to tissues due to their toxicity

Synonym : Sumatra Benzoin, Gum Benzoin Biological source: It is a balsamic resin obtained from Styrax benzoin (Sumatra benzoin ) Styrax tonkinesis (Siam benzoin) and other species of Styrax Family : Styraceae Geographical source : South eastern Asia, Thailand and Vietnam Benzoin

Description Sumatra Benzoin: Colour : It is greyish - brown or grey Odour : Aromatic and characteristic Taste : Sweetish and slightly acrid Benzoin Fig.49.1 Benzoin

Description Siam Benzoin : Colour : Yellowish brown to rusty brown Odour : Agreeable and Vanilla like Taste : Sweetish and slightly acrid Benzoin Fig.49.2 Benzoin

Benzoin Standards : Benzoic acid content :Not less than 60% (Sumatra) Not less than 12% (Siam) Alcohol soluble matter:Not less than 70% (Sumatra) Not less than 90% (Siam) Acid in soluble ash :Not less than 10%

Benzoin Chemical constituents : Sumatra benzoin contains free balsamic acids and esters derived from them Triterpenoid acids such as sumaresinolic and Siaresinolic acids are also present The major constituent of Siam benzoin is an ester of Coniferyl benzoate

Benzoin Identification tests : Alcoholic solution of Benzoin with water gives milky white solution Benzoin + Ether Extract + H 2 SO 4 Brown colour (Sumatra Benzoin) Deep purplish red (Siam) Benzoin + 4 ml KMno 4 Odour of Benzaldehyde

Uses : Irritating Expectorant, Carminative, Diuretic Externally used as Antiseptic and Protective Treatment of Upper Respiratory Tract infections Benzoin

Summary In this class we learnt about : Benzoin is a balsamic resin obtained from the various species of Styrax It is used as Irritating expectorant, Carminative, Diuretic and externally used as Antiseptic and Protective

1.Benzoin is obtained from a.Styrax species b.Curcuma longa c. Melia azadirachta d.None of the above Quiz

2. Benzoin is used as a.Antiseptic & disinfectant b.Carminative c.Antacid d.All of the above Quiz

Frequently asked Questions 1.Write the Biological Source and uses of Benzoin 2.Give the list of Chemical constituents of Benzoin 3.Write the identification tests for Benzoin