Isolation and application of purple non-sulfur bacteria for sulfide and organic matter removal
Vol. 135 No. 1S-1 (2026), Special Issue: IFB 2025
Vol. 135 No. 1S-1 (2026)

Isolation and application of purple non-sulfur bacteria for sulfide and organic matter removal

Special Issue: IFB 2025
https://doi.org/10.26459/hueunijns.v135i1S-1.8095
Published 2026-06-10
Thi Kim Chi Le
Center for Research, Technology transfer and Innovation, Department of Science and Technology, Quang Tri, Vietnam
Mau Binh Le
Center for Research, Technology transfer and Innovation, Department of Science and Technology, Quang Tri, Vietnam
Ngoc Khanh Nguyen
Center for Research, Technology transfer and Innovation, Department of Science and Technology, Quang Tri, Vietnam
Ha My A Hoang
Institute of Biotechnology, Hue University, Hue, Vietnam
Nguyen Duc Huy
Institute of Biotechnology, Hue University, Hue, Vietnam
PDF (Vietnamese)

Keywords

DSMZ 27
vi khuẩn tía quang hợp
Rhodobacter sp.
Rhodopseudomonas sp. DSMZ 27
purple non-sulfur photosynthetic bacteria
Rhodobacter sp.
Rhodopseudomonas sp.

How to Cite

1.
Lê TKC, Lê MB, Nguyễn NK, Hoàng HM Á, Huy N Đức. Isolation and application of purple non-sulfur bacteria for sulfide and organic matter removal. hueuni-jns [Internet]. 2026Jun.10 [cited 2026Jun.13];135(1S-1):135-47. Available from: https://jos.hueuni.edu.vn/index.php/hujos-ns/article/view/8095
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Abstract

The study reported the isolation of purple non-sulfur photosynthetic bacteria (PNSB) from water and sediment samples collected from shrimp ponds in Cua Tung commune, Ben Hai, Cua Viet, Quang Tri province to evaluate the sulfide and organic matter removal capabilities. As a result, two strains, designated QH07 and QH35, demonstrated sulfide removal efficiencies of 88.86% and 86.05%, respectively. Additionally, two strains, designated QH09 and QH42, exhibited organic matter removal efficiencies of 59.40% and 56.09%, respectively, after 7 days of cultivation. All four strains were Gram-negative, forming colonies that ranged from circular to perfectly round, with pigmentation varying from yellow-brown to orange-red and purple-red. Molecular identification revealed that strain QH07 belonged to Cereibacter genus and was named Cereibacter sp. QH07, while the isolate QH35 belonged to the genus Rhodobacter, and designated as Rhodobacter sp. QH35. Strains QH09 and QH42 were classified under the genus Rhodopseudomonas, and named Rhodopseudomonas faecalis QH09 and R. palustris QH42, respectively. The current isolates exhibiting strong activity in H2S and organic matter removal are important materials to produce bioinoculant products for treatment residual H2S and organic matter in shrimp pond water.

https://doi.org/10.26459/hueunijns.v135i1S-1.8095
PDF (Vietnamese)

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