1. PH103.56

2. ENZYMES
PAPAYA
PH103.56

3. 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 : PH103
Topic : ENZYMES
Duration : 50 Mts
Sub Topic : PAPAYA
Teaching Aids : PPT, Photographs
PH103.56
ER-91/PH-103/1 of 5

4. Objectives
On completion of this lesson, you would be able to know about :
Definition and classification of the enzymes
Monograph of papaya
PH103.56

5. Known to Unknown
Have you heard about proteolytic enzymes in earlier college study?
Can you tell one fruit which contains those principles?
PH103.56

6. Enzymes
Definition : Enzymes are the protein substances which serve a role of catalysing biochemical reactions.
They are
• Colloidal in nature
• Thermolabile and
• Highly specific in action.
PH103.56

7. Classification of Enzymes
1. Hydrolases : For catalysis of hydrolytic reactions 2. Transferases : For the transfer of chemical group from one molecule to another 3. Oxido reductases : Catalyse the oxidation – reduction reactions
PH103.56

8. Classification of Enzymes
4. Lyases : Catalyse the addition of groups to
double bonds or vice-versa
5. Isomerases : Responsible for intra-molecular
re arrangements
6. Synthetases : Catalyse the condensation of two
molecules coupled with the cleavage
of Pyrophosphate bond of ATP.
PH103.56

9. Papaya Biological source : It is cultivated fruiting tree known as
Carica papaya
Family : Caricaceae
Geographical Source :
Topical America
Sri Lanka
Tanzania
Hawali
Florida
India
Fig.56.1 Papaya fruit
PH103.56

10. Papaya Description : Colour : Light brown or
white coloured amorphous powder
Odour : Typical
Taste : Typical
Solubility : Partly Soluble in water
Soluble in Glycerine
Fig.56.1 Papaya Tree
PH103.56

11. Papaya Chemical Constituents : Enzymes • Papain • Chymopapain
• Polypeptides • Amides
Chemical Tests:
gm of Papaya latex + 10 ml water
Shake well
Add KMnO4
Decolorisation
2. 20 ml of milk gm of Papaya latex
Curdling takes place.
PH103.56

12. PAPAYA Uses : In clarification of Beverages Meat tenderiser
In cheese manufacture as substitute of Rennin
Degumming of silk fibres in textile industry
Dehairing of skins and hides in Leather industry
Digestant (proteolytic)
Anti-inflammatory agent
Relieving symptoms of Episiotomy.
PH103.56

13. PAPAYA Storage : Stored in well closed containers protected from
light and in cool place
PH103.56

14. Summary In this class we learnt about :
Papaya is obtained from half ripe fruits belongs to family Caricaceae chiefly constitutes proteolytic enzyme Papain
It is used as Digestant (proteolytic) and
Anti inflammatory agent.
PH103.56

15. Quiz Papaya contains Vitamins Enzymes Minerals None of the above
PH103.56

16. Quiz 2. Papaya belongs to Leguminosae Caricaceae Solanaceae Graminae
PH103.56

17. Quiz 3. Papaya is used as Proteolytic Anti inflammatory
Treatment of Episiotomy
All of the above
PH103.56

18. Frequently asked Questions
Write the family, Chemical constituents and Uses of Papaya
Write the monograph of Papaya.
Write the family, Biological source and uses of Papaya
PH103.55