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Bioresour Technol. 2016 Aug;213:283-288. doi: 10.1016/j.biortech.2016.03.020. Epub 2016 Mar 12.

Simultaneous saccharification and fermentation (SSF) of jackfruit seed powder (JFSP) to l-lactic acid and to polylactide polymer.

Author information

1
Biotechnology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695019, India.
2
Biotechnology Division, National Institute for Interdisciplinary Science and Technology, CSIR, Trivandrum 695019, India. Electronic address: madhavan85@hotmail.com.
3
Agricultural and Food Engineering Department, IIT, Kharagpur, India.
4
Department of Microbiology, UCS, Osmania University, Hyderabad, India.

Abstract

A newly isolated amylolytic lactic acid bacterium, Streptococcus equinus, was used for the production of l-lactic acid from jackfruit seed powder (JFSP) by simultaneous saccharification and fermentation (SSF). After optimization of shake flask fermentation by a response surface box-behnken design, the maximum lactate titer was 109g/L from 200g/L jackfruit seed powder. Amberlite IRA67, a weak base resin, was used to recover pure lactic acid from fermented broth and subsequently used for the synthesis of polylactic acid by direct condensation polymerization method with a yield of 62%.

KEYWORDS:

Bioplastic; Jackfruit seeds; Lactic acid; Polylactide; Streptococcus equinus

PMID:
27005791
DOI:
10.1016/j.biortech.2016.03.020
[Indexed for MEDLINE]

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