Formulation of pullulan/plasticizer blended films for their physical and biodegradability studies

Order of Publishing in Issue: 
3
Volume :14
Issue :3
July, 2020 - September, 2020
Page No: 
263-270
Authors: 
V S Rama Krishna Ganduri[1,*], Usha Kiranmayi M[2], K.R.S.Sambasiva Rao[3], Sudhakar Poda[3]
Address: 
[1]Department of Biotechnology, Koneru Lakshmaiah Education Foundation, Vaddeswaram- 522502, A.P., India
Address: 
[2]Department of Microbiology and Botany, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur- 522510, A.P., India
Address: 
[3]Department of Biotechnology, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur- 522510, A.P., India

The present investigation utilizes the ecoefficient pullulan polysaccharide as film-forming biopolymer. Pullulan-based edible films offer good physical, thermal and mechanical properties which enable them to use in shelf-life preservation of fresh produce. Blends of other film-forming polysaccharides, plasticizers and an antioxidant with pullulan (Pu) solution were prepared in order to determine physical and optical parameters of those films. The morphological and biodegradable studies were attempted to identify the changes on the films’ surfaces. The films made from (only) pullulan (10Pu), pullulan composited with sodium alginate(10Pu_0.5SA), gelatin (10Pu_0.5G), polyethylene glycol (10Pu_0.5PG), calcium chloride and lemon juice (10Pu_1CC_2L) resulted heavier film densities, higher whiteness indexes and lower total color difference values. All the films were tested for their biodegradability in soil, where visual changes were appreciated after 15 days, partial and complete degradation took place at the end of 34 days and 53 days, respectively. Thus, these pullulan blended films could be a better replacement for synthetic films towards environmental problems.

Keywords: 
Pullulan, Plasticizers, antioxidant, edible film, biodegradable
AttachmentSize
PDF450.58 KB

 
To download full text articles and issues in PDF at no cost.All you have to do is fill out a brief registration form. It's easy and it's free. At any time, you may request removal of your contact information from our database.
Click here to Register | Click here if you have already registered

2018 ABAP Awards

Invitation for Nominations to 2019 ABAP Awards
The Association of Biotechnology and Pharmacy invites nominations for the following awards from the eligible talented people with proven track record and achievements on or before August 31, 2019 in the prescribed format.

DOWNLOAD CIRCULAR | APPLICATION FORM

AWARDS

Upcoming 0 events

  • No upcoming events available

User login