Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis
Harvesting, a challenging step of microalgae processing appears to be promising using flocculation method by the addition of tannin based natural biopolymer, AFlok-BP1. In this study, marine microalgae Nannochloropsis sp. was flocculated using AFlok-BP1 to evaluate its effectiveness in terms of floc...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2018
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| Online Access: | http://psasir.upm.edu.my/id/eprint/72470/1/Effective%20use%20of%20tannin%20based%20natural%20biopolymer.pdf |
| _version_ | 1825950091773476864 |
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| author | Mat Fuad, Nurafifah Omar, Rozita Kamarudin, Suryani Harun, Mohd Razif Idris, Azni Wan Ab. Karim Ghani, Wan Azlina |
| author_facet | Mat Fuad, Nurafifah Omar, Rozita Kamarudin, Suryani Harun, Mohd Razif Idris, Azni Wan Ab. Karim Ghani, Wan Azlina |
| author_sort | Mat Fuad, Nurafifah |
| collection | UPM |
| description | Harvesting, a challenging step of microalgae processing appears to be promising using flocculation method by the addition of tannin based natural biopolymer, AFlok-BP1. In this study, marine microalgae Nannochloropsis sp. was flocculated using AFlok-BP1 to evaluate its effectiveness in terms of flocculation efficiency, pH and dosages used, zeta potential, floc morphology characterization with comparison to the uses of aluminium sulphate and alkaline-induced pH. Oleaginous marine microalgae Nannochloropsis sp. was found to work effectively using AFlok-BP1 at an acidic pH 5 with more than 90% efficiency obtained at 160 mg/L. The finding was further supported with great instability of microalgae surface charge of -0.33 ± 0.27 mV, hence maximum destabilization of microalgae was believed to occur. The use of alum also effective to harvest Nannochloropsis sp. at neutral pH 7 with comparable efficiency as AFlok-BP1, but high dosage needed for more than 300 mg/L was at major concerns. Similarly, improved efficiency was observed for alkaline-induced pH for almost 100% efficiency. This would provide a better alternative for marine microalgae flocculation however, high concentration of minerals in the harvested biomass due to pH increase in need of further evaluation. To summarize, AFlok-BP1 would be a viable option to harvest marine microalgae Nannochloropsis sp. for the production of valuable compounds as it is an environmental friendly flocculant and provide no potential toxicity to the harvested biomass. |
| first_indexed | 2024-03-06T10:09:19Z |
| format | Article |
| id | upm.eprints-72470 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:09:19Z |
| publishDate | 2018 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | upm.eprints-724702020-06-17T00:37:03Z http://psasir.upm.edu.my/id/eprint/72470/ Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis Mat Fuad, Nurafifah Omar, Rozita Kamarudin, Suryani Harun, Mohd Razif Idris, Azni Wan Ab. Karim Ghani, Wan Azlina Harvesting, a challenging step of microalgae processing appears to be promising using flocculation method by the addition of tannin based natural biopolymer, AFlok-BP1. In this study, marine microalgae Nannochloropsis sp. was flocculated using AFlok-BP1 to evaluate its effectiveness in terms of flocculation efficiency, pH and dosages used, zeta potential, floc morphology characterization with comparison to the uses of aluminium sulphate and alkaline-induced pH. Oleaginous marine microalgae Nannochloropsis sp. was found to work effectively using AFlok-BP1 at an acidic pH 5 with more than 90% efficiency obtained at 160 mg/L. The finding was further supported with great instability of microalgae surface charge of -0.33 ± 0.27 mV, hence maximum destabilization of microalgae was believed to occur. The use of alum also effective to harvest Nannochloropsis sp. at neutral pH 7 with comparable efficiency as AFlok-BP1, but high dosage needed for more than 300 mg/L was at major concerns. Similarly, improved efficiency was observed for alkaline-induced pH for almost 100% efficiency. This would provide a better alternative for marine microalgae flocculation however, high concentration of minerals in the harvested biomass due to pH increase in need of further evaluation. To summarize, AFlok-BP1 would be a viable option to harvest marine microalgae Nannochloropsis sp. for the production of valuable compounds as it is an environmental friendly flocculant and provide no potential toxicity to the harvested biomass. Elsevier 2018 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/72470/1/Effective%20use%20of%20tannin%20based%20natural%20biopolymer.pdf Mat Fuad, Nurafifah and Omar, Rozita and Kamarudin, Suryani and Harun, Mohd Razif and Idris, Azni and Wan Ab. Karim Ghani, Wan Azlina (2018) Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis. Journal of Environmental Chemical Engineering, 6 (4). 4318 - 4238. ISSN 2213-3437; ESSN: 2213-2929 https://www.sciencedirect.com/science/article/pii/S2213343718303506 10.1016/j.jece.2018.06.041 |
| spellingShingle | Mat Fuad, Nurafifah Omar, Rozita Kamarudin, Suryani Harun, Mohd Razif Idris, Azni Wan Ab. Karim Ghani, Wan Azlina Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis |
| title | Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis |
| title_full | Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis |
| title_fullStr | Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis |
| title_full_unstemmed | Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis |
| title_short | Effective use of tannin based natural biopolymer, AFlok-BP1 to harvest marine microalgae Nannochloropsis |
| title_sort | effective use of tannin based natural biopolymer aflok bp1 to harvest marine microalgae nannochloropsis |
| url | http://psasir.upm.edu.my/id/eprint/72470/1/Effective%20use%20of%20tannin%20based%20natural%20biopolymer.pdf |
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