OPEN VESSEL AND STEAM BOILER METHODS FOR ACID ‎BASED AGAR EXTRACTION BY GRACILARIA CORTICATA
Vol. 26 No. 1 (2017), Articles
Vol. 26 No. 1 (2017)

OPEN VESSEL AND STEAM BOILER METHODS FOR ACID ‎BASED AGAR EXTRACTION BY GRACILARIA CORTICATA

Articles
Published 31-12-2017
Fareeha Pervaiz‎
Pakistan Council of Science and Industrial Research (PCSIR), Karachi Pakistan‎
Asma Tabassum‎
Research Operations & Development, ORIC University of Karachi
Sofia Qaisar‎
Pakistan Council of Science and Industrial Research (PCSIR), Karachi Pakistan‎
Sidra Nadeem‎
Pakistan Council of Science and Industrial Research (PCSIR), Karachi Pakistan‎
Aijaz Panhwar‎
Pakistan Council of Science and Industrial Research (PCSIR), Karachi Pakistan‎
Aliya Rehman
Department of Botany, University of Karachi
Full Paper

Keywords

steam boiler methods
agar extraction
Gracilaria corticata

How to Cite

Pervaiz‎, F., Tabassum‎, A., Qaisar, S., Nadeem, S., Panhwar, A., & Rehman, A. (2017). OPEN VESSEL AND STEAM BOILER METHODS FOR ACID ‎BASED AGAR EXTRACTION BY GRACILARIA CORTICATA. Pakistan Journal of Marine Sciences, 26(1), 51–55. Retrieved from http://pakjmsuok.com/index.php/pjms/article/view/76
ACM ACS APA ABNT Chicago Harvard IEEE MLA Turabian Vancouver

Download Citation

Endnote/Zotero/Mendeley (RIS) BibTeX

Abstract

Agar is a commercially important biopolymer by marine algae and used up in various industries like microbiological, food, medicine, cosmetics. Acid based pretreatment is explored in this study for open vessel and steam boiler methods in terms of agar production at wet conditions. For the selection of acids the very strong (H2SO4), strong (HCl) and weak acid (CH3COOH) were used and CH3COOH was selected. Furthermore, the strength of CH3COOH was optimized at 1%. The steam boiler treatment with 1h soaking in 1% CH3COOH produced 10g agar which was better than open vessel treatment.

Full Paper

References

Bixler, H.J. and H. Porse. 2011, A decade of change in the seaweed hydrocolloids ‎industry. J. Appl. Chem. 23: 321-335. ‎

Fidelis, G.P., R.B.G. Camara, M.S.S.P. Queiroz, P.C. Santos and H.A.O. Rocha. 2014. ‎Proteolysis, and ultrasound enhanced extraction of anticoagulant and antioxidant ‎sulfated polysaccharides from the edible seaweed, Gracilaria birdiae. Molecules. ‎‎19(11): 18511-18526.‎ ‎ ‎

Phan, T.D., Debeaufort, F., Voilley,A.,& Luu,D.(2009). Biopolymer interactions affect ‎the ‎ functional properties of edible films based on agar, cassava and arabinoxylan ‎blends. Journal of ‎ food Engineering, 90, 548-558.‎

Praiboon, J., A. Chirapart, Y. Akakabe, O. Bhumibhamon and T. Kajiwara. 2006. ‎Physical and chemical characterization of agar polysaccharide extracted from the ‎Thai and Japanese species of Gracilaria. Science Asia. 32(suppl. 1): 11-17.‎ ‎ ‎

Rochas, C. and M. Lahaye. 1989. Average molecular weight and molecular weight ‎distribution of agarose and agarose–type polysaccharides. Carbohydrate polymers. ‎‎10: 289-298.‎ ‎ ‎ ‎ ‎

Sousa, A. and M.P. Goncalves. 2015. The influence of locust bean gum on native and ‎alkali- modified agar gels. Food Hydrocolloids. 44: 461-470. ‎

Villanueva, R., A. Sousa, M.P. Goncalves and L. Hilliou. 2010. Production and properties ‎of agar from the invasive marine alga, Gracilaria vermiculophylla (Gracilariales, ‎Rhodophyta). J. Appl. Phycol. 22(2): 211-220.‎

Yang, M.Y., J.D. Dong and M.S. Kim. 2012. Taxonomic notes on five species of ‎Gracilariaceae from Hainan, China. Algae. 27(3): 175-187.‎

Yousefi, M.K., H.R. Islami and Y. Filizadeh. 2013. Effect of extraction process on agar ‎properties of Gracilaria corticata (rhodophytra) collected from the Persian Gulf. ‎Phycologia. 52(6): 481-487.‎

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

Copyright (c) 2017 Fareeha Pervaiz‎, Asma Tabassum‎, Sofia Qaisar‎, Sidra Nadeem‎, Aijaz Panhwar‎, Aliya Rehman