The Production of Lactic Acids grom Lactobacillus acidophilus

Amhar Abubakar


ABSTRACT.The ratio of D-and L-lactic acid produced in media by 39 strains of the L. acidophilus group lactic acid bacteria (A1-A4,B1, and B2 subgroups) was analyzed by high performance liquid chromatography (HPLC). L. acidophilus (A1) and L. jhonsonii (B2) produced the lowest ( 5 strains average : 41.9%) contents of D-lactic acid in MRS broth, respectively. Generally, the most dominant lactic acid (more than 50%) produced by each strain in MRS broth was a D-type isomer, except for the A1 subgroup. In L. gasseri DSM 20243T (B1), increases in the sugar content in MRS broth induced both a high production of total lactic acids and a high ratio of D-lactic acid. In skim milk, D-lactic acid decreased by 20 – 30 % in 5 strain types of the L. acidophilus group except L. amylovorus JCM 1126 T (A3). By sequentially changing the medium, the content of D-lactic acid in the final MRS broth reverted to almost the same level of that in the initial MRS broth. These results indicated that the ratio of D-lactic acid produced by L. acidophilus group bacteria may be controlled by improving fermentative condition


Lactic acid; D-lactic acid; lactobasillus acidophilus; HPLC

Full Text:




  • There are currently no refbacks.

Copyright (c) 2000 Jurnal Agripet

License URL:

Creative Commons LicenseISSN: 1411-4623E-ISSN: 2460-4534
Copyright© 2000-2020 | ISSN: 1411-4623 | EISSN: 2460-4534 
Jurnal Agripet is licensed under a Creative Commons Attribution 4.0 International License.


Published by: 
Animal Husbandry DepartmentThe Faculty of Agriculture, Syiah Kuala University 
associated with Animal Scientist's Society of Indonesia (HILPI)
Jl. Tgk. Hasan Krueng Kalee No. 3, Kopelma Darussalam,
Banda Aceh, 23111, Indonesia.
Phone: +62-81383736633
Email: &

Online Submissions & Guidelines Editorial Policies | Contact Statistics Indexing | Citations