Conversion of inorganic selenium to organic form(s) by Lactobacillus acidophilus
Other Title(s)
تحويل السيلنيوم غير العضوي إلى عضوي باستخدام مزارع Lactobacillus acidophilus
Joint Authors
Zammarah, Muhsin Abd al-Aziz
Prukisch, Juzif
Source
Alexandria Journal of Food Science and Technology
Issue
Vol. 16, Issue 2 (31 Dec. 2019), pp.17-24, 8 p.
Publisher
The Scientific Society of Food Industry
Publication Date
2019-12-31
Country of Publication
Egypt
No. of Pages
8
Main Subjects
Abstract EN
The bioconversion of 2 forms of inorganic selenium namely selenite (SeIV) and selenate (SeVI) to organic form(s) by Lactobacillus acidophilus strain was investigated.
The cultured media (MRS) was supplemented with 1, 2, 5, 10, 20 ppm of Se in the form of sodium selenite (Na2SeO3, SeIV) or sodium selenate (Na2SeO4, SeVI) and incubated at 37°C up to 24 hr Both Se forms showed no marked effect on the bacterial growth indicating no cytotoxicity at these concentrations.
However, the media supplemented with 5, 10 and 20 ppm of Se(IV), but not Se(VI), became reddish after 24 hr of incubation with increasing the red color intense with increasing the Se content in the media.
The scanning electron microscope (SEM) investigation clarified the presence of Se-nano particles (SeNPs) in the media.
Se speciation of the cultured media supernatant and its corresponding cell fractions using HPLC-ICP-MS technique indicated that the bioconversion rate of Se to organic form(s) was extremely higher in Se(IV) than Se(VI) in both fractions however, the cell fractions contained the highest content.
The organic Se gradually increased in both fractions with increasing the media Se content.
The inorganic Se was completely bio-converted to organic form(s) without any residual only in the medium contained 1 ppm Se(IV).
Our results demonstrate the ability of L.
acidophilus to convert Se(IV) but not Se(VI), at a limit concentration of 1 ppm and accumulate organic Se form(s) in the cell fraction.
These results confirm the possible bio-production of organic Se enriched fermented dairy products.
American Psychological Association (APA)
Zammarah, Muhsin Abd al-Aziz& Prukisch, Juzif. 2019. Conversion of inorganic selenium to organic form(s) by Lactobacillus acidophilus. Alexandria Journal of Food Science and Technology،Vol. 16, no. 2, pp.17-24.
https://search.emarefa.net/detail/BIM-956109
Modern Language Association (MLA)
Zammarah, Muhsin Abd al-Aziz& Prukisch, Juzif. Conversion of inorganic selenium to organic form(s) by Lactobacillus acidophilus. Alexandria Journal of Food Science and Technology Vol. 16, no. 2 (Dec. 2019), pp.17-24.
https://search.emarefa.net/detail/BIM-956109
American Medical Association (AMA)
Zammarah, Muhsin Abd al-Aziz& Prukisch, Juzif. Conversion of inorganic selenium to organic form(s) by Lactobacillus acidophilus. Alexandria Journal of Food Science and Technology. 2019. Vol. 16, no. 2, pp.17-24.
https://search.emarefa.net/detail/BIM-956109
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 23-24
Record ID
BIM-956109