Sorghum Malt Extract as a Growth Medium for Lactic Acid Bacteria Cultures: A Case of Lactobacillus plantarum MNC 21
Joint Authors
Byakika, Stellah
Mukisa, Ivan Muzira
Byaruhanga, Yusuf Byenkya
Source
International Journal of Microbiology
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-12-11
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
Cultivation of lactic acid bacteria cultures is vital for research and commercial production of fermented foods.
However, the conventional growth media used are generally costly.
Malt extracts from four sorghum varieties (SESO 1, SESO 3, Epuripur, and Eyera) were evaluated as alternative low-cost growth media for Lactobacillus plantarum MNC 21.
Saccharified sorghum malt extracts were inoculated with 4 log cfu/mL MNC 21 and incubated at 30°C for 24 h.
MRS broth was the reference medium.
Microbial counts, pH, titratable acidity (TA), free amino nitrogen (FAN), and total sugars were measured.
Maximum microbial counts in the extracts and MRS broth were 9 and 10 log cfu/mL, respectively.
Maximum growth rate in the extracts was 0.7–0.9 log cfu/mL/h and 0.8 log cfu/mL/h in MRS broth.
The final pH of the extracts was 3.5–3.6, with an overall increase in TA of 1.2% in Epuripur and 0.2% in other varieties.
Final pH and TA of MRS broth were 4.1 and 1.3%, respectively.
Total sugars dropped by 95.2% and FAN by 2.1% in MRS broth.
In contrast, total sugars and FAN dropped by 5.6–9.1% and 24.9–32.7% respectively, in the extracts.
Sorghum malt extracts can be adopted as alternative low-cost growth media for lactic acid bacteria cultures.
American Psychological Association (APA)
Byakika, Stellah& Mukisa, Ivan Muzira& Byaruhanga, Yusuf Byenkya. 2020. Sorghum Malt Extract as a Growth Medium for Lactic Acid Bacteria Cultures: A Case of Lactobacillus plantarum MNC 21. International Journal of Microbiology،Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1172222
Modern Language Association (MLA)
Byakika, Stellah…[et al.]. Sorghum Malt Extract as a Growth Medium for Lactic Acid Bacteria Cultures: A Case of Lactobacillus plantarum MNC 21. International Journal of Microbiology No. 2020 (2020), pp.1-7.
https://search.emarefa.net/detail/BIM-1172222
American Medical Association (AMA)
Byakika, Stellah& Mukisa, Ivan Muzira& Byaruhanga, Yusuf Byenkya. Sorghum Malt Extract as a Growth Medium for Lactic Acid Bacteria Cultures: A Case of Lactobacillus plantarum MNC 21. International Journal of Microbiology. 2020. Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1172222
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1172222