Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp
Microalgae have been immobilized in alginate matrixes for the ease of harvesting of the microalgae. However, not all microalgae thrive when immobilized. Immobilized cells are sensitive to the micro-environment in alginate matrixes. Hence, this study aims to improve the growth of immobilized cells an...
Saved in:
Main Authors: | , |
---|---|
Format: | Article |
Language: | English English |
Published: |
UKM
2021
|
Subjects: | |
Online Access: | https://eprints.ums.edu.my/id/eprint/36443/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/36443/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/36443/ http://dx.doi.org/10.17576/jsm-2021-5003-11 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
id |
my.ums.eprints.36443 |
---|---|
record_format |
eprints |
spelling |
my.ums.eprints.364432023-08-21T07:02:34Z https://eprints.ums.edu.my/id/eprint/36443/ Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp Chen-lin soo Yii-Siang Hii TP1-1185 Chemical technology TP200-248 Chemicals: Manufacture, use, etc. Microalgae have been immobilized in alginate matrixes for the ease of harvesting of the microalgae. However, not all microalgae thrive when immobilized. Immobilized cells are sensitive to the micro-environment in alginate matrixes. Hence, this study aims to improve the growth of immobilized cells and also ammoniacal-nitrogen (NH4+-N) removal by adding growth medium in alginate beads during the immobilization process. Different strength of the Guillard�s f/2 medium (0%, 30%, 50%, and 100%) was enriched in alginate beads inoculated with Nannochloropsis sp. The immobilized cells were then cultivated in seawater with 1000 µM NH4+-N as the sole nitrogen source. The growth and NH4+-N uptake by immobilized cells enriched with different strength of f/2 medium were compared. There were no significant differences on specific growth rate and specific uptake rate of immobilized cells after nutrient enrichment in alginate beads. However, maximum cells attained and maximum NH4+-N removed increased when strength of f/2 medium enriched in alginate beads was increased. Significantly higher maximum cells attained and maximum NH4+-N removal were found in immobilized cells enriched with half strength of f/2 medium than those without nutrient enrichment. The present study demonstrated that nutrient enriched in alginate beads can be used by immobilized cells, and subsequently improves the performance of immobilized cells in marine water treatment and production of microalgal biomass simultaneously UKM 2021-03 Article NonPeerReviewed text en https://eprints.ums.edu.my/id/eprint/36443/1/ABSTRACT.pdf text en https://eprints.ums.edu.my/id/eprint/36443/2/FULL%20TEXT.pdf Chen-lin soo and Yii-Siang Hii (2021) Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp. Sains Malaysiana, 50. pp. 691-697. ISSN 01266039 http://dx.doi.org/10.17576/jsm-2021-5003-11 |
institution |
Universiti Malaysia Sabah |
building |
UMS Library |
collection |
Institutional Repository |
continent |
Asia |
country |
Malaysia |
content_provider |
Universiti Malaysia Sabah |
content_source |
UMS Institutional Repository |
url_provider |
http://eprints.ums.edu.my/ |
language |
English English |
topic |
TP1-1185 Chemical technology TP200-248 Chemicals: Manufacture, use, etc. |
spellingShingle |
TP1-1185 Chemical technology TP200-248 Chemicals: Manufacture, use, etc. Chen-lin soo Yii-Siang Hii Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp |
description |
Microalgae have been immobilized in alginate matrixes for the ease of harvesting of the microalgae. However, not all microalgae thrive when immobilized. Immobilized cells are sensitive to the micro-environment in alginate matrixes. Hence, this study aims to improve the growth of immobilized cells and also ammoniacal-nitrogen (NH4+-N) removal by
adding growth medium in alginate beads during the immobilization process. Different strength of the Guillard�s f/2 medium (0%, 30%, 50%, and 100%) was enriched in alginate beads inoculated with Nannochloropsis sp. The immobilized cells were then cultivated in seawater with 1000 µM NH4+-N as the sole nitrogen source. The growth and NH4+-N uptake by immobilized cells enriched with different strength of f/2 medium were compared. There were no significant differences on specific growth rate and specific uptake rate of immobilized cells after nutrient enrichment in alginate beads. However,
maximum cells attained and maximum NH4+-N removed increased when strength of f/2 medium enriched in alginate beads was increased. Significantly higher maximum cells attained and maximum NH4+-N removal were found in immobilized cells enriched with half strength of f/2 medium than those without nutrient enrichment. The present study demonstrated that nutrient enriched in alginate beads can be used by immobilized cells, and subsequently improves the performance
of immobilized cells in marine water treatment and production of microalgal biomass simultaneously |
format |
Article |
author |
Chen-lin soo Yii-Siang Hii |
author_facet |
Chen-lin soo Yii-Siang Hii |
author_sort |
Chen-lin soo |
title |
Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp |
title_short |
Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp |
title_full |
Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp |
title_fullStr |
Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp |
title_full_unstemmed |
Nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized Nannochloropsis sp |
title_sort |
nutrient enrichment in alginate bead for enhancement of cell growth and ammonium removal by alginate immobilized nannochloropsis sp |
publisher |
UKM |
publishDate |
2021 |
url |
https://eprints.ums.edu.my/id/eprint/36443/1/ABSTRACT.pdf https://eprints.ums.edu.my/id/eprint/36443/2/FULL%20TEXT.pdf https://eprints.ums.edu.my/id/eprint/36443/ http://dx.doi.org/10.17576/jsm-2021-5003-11 |
_version_ |
1775623863540908032 |
score |
13.18916 |