COMPARATIVE STORAGE STUDY OF CUSTARD APPLE PULP SEPARATED BY MACHINE AND MANUAL

P.H. BAKANE¹*, M.M. KHAKARE², M.H. GAJABE³, P.A. BORKARAND⁴, H.M. KHOBRAGADE^5
1Associate Professor, Department of Agricultural Process Engineering, Dr. PDKV, Akola, M.S., India
²Project Assistant, Department of Agricultural Process Engineering, Dr. PDKV, Akola, M.S., India
³Junior Research Fellow, Department of Agricultural Process Engineering, Dr. PDKV, Akola, M.S., India
⁴Head, Department of Agricultural Process Engineering, Dr. PDKV, Akola, M.S., India
⁵Senior Research Assistant, Department of Agricultural Process Engineering, Dr. PDKV, Akola, M.S., India
* Corresponding Author : pramodbakane@gmail.com, madhurigajabe@gmail.com

Received : 10-08-2015     Accepted : 16-09-2015     Published : 07-11-2015
Volume : 7     Issue : 8       Pages : 647 - 651
Int J Agr Sci 7.8 (2015):647-651

Keywords : Custard apple, Pulp, Physiochemical properties and Microbial count
Academic Editor : S. Pavankumar G. V., Santosh Kuar Jha, V. S. Baviskar, Er. Kundan Kr. Jain
Conflict of Interest : None declared
Acknowledgements/Funding : None declared

A research was carried out to study storage of custard apple pulp. The custard apple fruits were split into two halves and pulp with seed were scooped out manually. The seed from the pulp was separated by machine and compared with pulp separated by manual. The pulp was treated with ascorbic acid (0.25 %) and potassium metabisulphite (0.1 %)to check the browning of pulp during storage. Treated pulp (50 gm) was packed in HDPE bags and stored in deep freeze at -20° C for 6 month. The stored pulp wereanalyzed every month for physiochemical qualities and microbial load. The pH, TSS, Total sugar, water activity, acidity and colour(L-Value)of the stored custard apple pulp was found to be in the range of 5.52 to 5.28, 23° to 27°brix, 13.28 to 20.61,0.857 to 0.940,0.44 to 0.20 and 69.98 to59.03, respectively.The microbial load and fungal count of stored custard apple pulp was found to be less than 1000 cfu/g and 100 cfu/g, respectively. The microbial load was less in potassium metabisulphite and ascorbic acid treated sample than that of control sample. Pulp separated by any method scould be stored at -20°C with 0.1%KMS for 180 days without spoilage.