Author(s): Nupur Ojha, Nilanjana Das

Email(s): nilanjanamitra@vit.ac.in

DOI: 10.5958/0974-360X.2017.00161.5   

Address: Nupur Ojha, Nilanjana Das*
Bioremediation Laboratory, School of Bio Sciences and Technology, VIT University, Vellore-632014, Tamil Nadu, India
*Corresponding Author

Published In:   Volume - 10,      Issue - 3,     Year - 2017


ABSTRACT:
The present study investigates the role of yeasts, isolated from different environments for its abilities to synthesize biodegradable polymer, Polyhydroxyalkanoates (PHA) and its copolymers. Serial dilution method and spread plate technique had been used for the isolation of yeasts from different samples. Screening had been done by crotonic assay followed by UV Spectrophotometric analysis. Growth parameters such as effect of carbon sources, incubation period, inoculum percentage, incubation temperature and pH of the production medium were optimized for each of the screened isolates. Characterization of PHA was done by FTIR and GC-MS analysis. Maximum PHA produced was observed after 96 hours of incubation period inoculated with 2% (v/v) of inoculum in minimal media of pH 8 containing various carbon sources viz. 5% sucrose for Isolate1; 5% glucose for Isolate 2; 3% starch for Isolate 3 and 5% Lactose for Isolate 4. Incubation temperature was maintained at 37°C. Maximum PHA production was noted as 40 % in Isolate 1, 33% in Isolate 2, 29% in Isolate 3and 25% in Isolate 4 respectively on the basis of dry cell weight under optimized condition. Prominent peaks obtained through FTIR analysis at wavelength 3273, 2922, 1739 and 1462 cm -1 showed the presence of stretching bands of –OH-,-CH-, -C=O- and –CH3- group which are the characteristic peaks of PHA polymer. GC-MS chromatogram detected the peaks at retention time 3.063 and 19.25 min were corresponding to the derivatized products of butanoic acid (polyhydroxybutyrate) and octadecanoic acid (polyhydroxyoctadecanoate).The present study demonstrated that yeast Isolate 1 could produce high amount of PHA (40% on dry cell weight basis ) with hydroxybutyrate (HB) and hydroxyoctadecanoate (HOD) as its main constituents.


Cite this article:
Nupur Ojha, Nilanjana Das. Optimization and Characterization of Polyhydroxyalkanoates and its Copolymers Synthesized by Isolated Yeasts. Research J. Pharm. and Tech. 2017; 10(3): 861-868. doi: 10.5958/0974-360X.2017.00161.5


Recomonded Articles:

Author(s): Niharika, Navneet Verma

DOI: 10.5958/0974-360X.2016.00182.7         Access: Open Access Read More

Author(s): Jino Elsa Thomas, Usha Y Nayak*, Jagadish PC, Koteshwara KB

DOI: 10.5958/0974-360X.2017.00007.5         Access: Open Access Read More

Author(s): Abhirup Dey, Mangala Lakshmi Ragavan, Sanjeeb Kumar Mandal, Nilanjana Das

DOI: 10.5958/0974-360X.2017.00136.6         Access: Open Access Read More

Author(s): Vandana Gautam, Dhriti Kapoor, Saroj Arora, Renu Bhardwaj*

DOI: 10.5958/0974-360X.2016.00166.9         Access: Open Access Read More

Author(s): Sonte Sushmitha, Sedimbi Revathi Priyanka, L. Mohan Krishna, M. Srinavasa Murthy

DOI: Not Available         Access: Open Access Read More

Author(s): Siripurapu Sriram, Venkata Ravibabu Mandla, Chaithanya Sudha M, Saladi S.V. Subba Rao, Nagaveni Ch, Vani V., Gobinath P., Raj Kumar KVG., Jaydeep Lella, Sannidhi Krishna Praveen, Debjit Datta

DOI: 10.5958/0974-360X.2017.00078.6         Access: Open Access Read More

Author(s): Mistry Khushboo, Kavya Naik, Vasanthi, Alicia Menezes, Anup Naha, K.B. Koteshwara, K. Girish Pai

DOI: 10.5958/0974-360X.2017.00540.6         Access: Open Access Read More

Author(s): Deepak Karki, Gururaj S. Kulkarni, Shivakumar Swamy, Sheeba FR

DOI: 10.5958/0974-360X.2017.00750.8         Access: Open Access Read More

Author(s): Malarkodi Velraj, P. Jasmine Shiney, Biplab Paul, Rashmi. S, Nivethitha

DOI: 10.5958/0974-360X.2017.00006.3         Access: Open Access Read More

Author(s): Rekha Rajendran, R Hemachander, T Ezhilarasan, C Keerthana, DL Saroja, KV Saichand, Mohamed Gasim Abdullah

DOI: Not Available         Access: Open Access Read More

Author(s): Vaseeha Banu T.S., Sandhya K.V., K.N. Jayaveera

DOI: Not Available         Access: Open Access Read More

Author(s): Mahadeva Rao US, San San Oo, Nurul Liana Sabrin, Norsyahira Syazwana Mohd Razali, Khairunnisa Khalid, Nurul Farihah Mohamed Nadzari, Thant Zin

DOI: 10.5958/0974-360X.2017.00065.8         Access: Open Access Read More

Author(s): Yarnykh T.G., Azarenko Iu. M., Buryak M.V., Bubilieva L. A.

DOI: 10.5958/0974-360X.2016.00115.3         Access: Open Access Read More

Author(s): N. Chandarsekaran, M. Balamurugan

DOI: Not Available         Access: Open Access Read More

Author(s): Mahanthesh M.C., Girendra Gautam, Jalalpure S.S.

DOI: 10.5958/0974-360X.2017.00250.5         Access: Open Access Read More

Research Journal of Pharmacy and Technology (RJPT) is an international, peer-reviewed, multidisciplinary journal.... Read more >>>

RNI: CHHENG00387/33/1/2008-TC                     
DOI: 10.5958/0974-360X 

0.38
2018CiteScore
 
56th percentile
Powered by  Scopus


SCImago Journal & Country Rank


Recent Articles




Tags