Short communication, Note

Potential Use of Gelidium amansii Acid Hydrolysate for Lactic Acid Production by Lactobacillus rhamnosus

Sung-Soo Jang ; Department of Biological Functions and Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2–4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan
Yoshihito Shirai ; Department of Biological Functions and Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2–4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan
Motoharu Uchida ; National Research Institute of Fisheries and Environment of Inland Sea, Fisheries Research Agency, 2-17-5 Maruishi, Hatsukaichi, Hiroshima 739-0452, Japan
Minato Wakisaka ; Department of Biological Functions and Engineering, Graduate School of Life Science and Systems Engineering, Kyushu Institute of Technology, 2–4 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0196, Japan

Abstract

Galactose and glucose are the main monosaccharides produced from the saccharification of Gelidium amansii. They were hydrolysed with 3 % (by volume) H2SO4 at 140 °C for 5 min and obtained at concentrations of 19.60 and 10.21 g/L, respectively. G. amansii hydrolysate (5 %, by mass per volume) was used as a substrate for L(+)-lactic acid production by Lactobacillus rhamnosus. The maximum lactic acid yield (YP/S) was 42.03 % with optical purity of 84.54 %. Lactic acid produced from G. amansii hydrolysate can be applicable, among others, for the production of lactic acid esters, like ethyl or methyl lactate, and disinfectant in seaweed cultivation.

Keywords

Gelidium amansii; galactose; lactic acid fermentation; Lactobacillus rhamnosus; acid hydrolysis

Hrčak ID:

99764

URI

https://hrcak.srce.hr/99764

Publication date:

29.3.2013.

Article data in other languages: croatian

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