Enhanced treatment of organic matters in starch wastewater through Bacillus subtilis strain with polyethylene glycol-modified polyvinyl alcohol/sodium alginate hydrogel microspheres

Chen, Qi Jue; Ding, Quan Ming; Li, Wen; Deng, Jing; Lin, Qiyuan; Li, Juan

doi:10.1016/j.biortech.2022.126741

Cited by 19 publications

(3 citation statements)

References 46 publications

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“…According to the literature, hydrogel beads could be utilized to immobilize different microorganisms used for wastewater treatment. Chen et al, 2022 immobilized Bacillus subtilis on polyethylene glycol (PEG)-modified polyvinyl alcohol (PVA)/sodium alginate (SA) hydrogel microspheres to treat starch wastewater [6]. An amplification efficiency of the wastewater treatment during the anammox process during utilization of immobilized microorganisms in polyvinyl alcohol/sodium alginate was achieved [3].…”

Section: Introductionmentioning

confidence: 99%

An Innovative Look into Ammonium Nitrogen Removal Using Algae and Zeolites as an Element of a Circular Bioeconomy

Zabochnicka

2023

Applied Sciences

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This work focused on the potential of simultaneously removing ammonium nitrogen from industrial wastewater using immobilized microalgae and powdered zeolite. Experiments were performed with different species and doses of microalgae embedded in spherical hydrogels in semicontinuous conditions. Ammonium nitrogen uptake by microalgae promoted the slow release of previously adsorbed ammonium nitrogen from zeolite that was then also absorbed by microalgae. Results showed that immobilized microalgae can reach a removal efficiency of up to 60% (C. vulgaris) and 42% (S. armatus). A higher removal efficiency was obtained for zeolites and immobilized C. vulgaris or S. armatus up to 86% and 79%, respectively. Moreover, a higher maximum sorption capacity for C. vulgaris (13.8 mg/g) was achieved than for S. armatus (5.5 mg/g). The recycling of spent hydrogel, zeolite, and wastewater is possible. Such an approach represents a circular bioeconomy loop.

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Section: Introductionmentioning

confidence: 99%

An Innovative Look into Ammonium Nitrogen Removal Using Algae and Zeolites as an Element of a Circular Bioeconomy

Zabochnicka

2023

Applied Sciences

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“…[25,26] To overcome the disadvantages, PC can be encapsulated in biomaterial scaffolds to treat periodontitis. [27] Microsphere scaffolds based on natural macromolecules (such as collagen, [28] fibroin, [29] sodium alginate, [30] and chitosan [31] ) have attracted interest in drug delivery research because of their excellent biocompatibility, biodegradability, and environmental friendliness. They have a large relative surface area, adjustable size, excellent biocompatibility, and degradability, which perfectly solve the instability of PC and promote wide medical applications.…”

Section: Introductionmentioning

confidence: 99%

A Biomimetic Se‐nHA/PC Composite Microsphere with Synergistic Immunomodulatory and Osteogenic Ability to Activate Bone Regeneration in Periodontitis

Ming,

Liu,

et al. 2023

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Accumulation of reactive oxygen species (ROS) in periodontitis exacerbates the destruction of alveolar bone. Therefore, scavenging ROS to reshape the periodontal microenvironment, alleviate the inflammatory response and promote endogenous stem cell osteogenic differentiation may be an effective strategy for treating bone resorption in periodontitis. In this study, sericin‐hydroxyapatite nanoparticles (Se‐nHA NPs) are synthesized using a biomimetic mineralization method. Se‐nHA NPs and proanthocyanidins (PC) are then encapsulated in sericin/sodium alginate (Se/SA) using an electrostatic injection technique to prepare Se‐nHA/PC microspheres. Microspheres are effective in scavenging ROS, inhibiting the polarization of macrophages toward the M1 type, and inducing the polarization of macrophages toward the M2 type. In normal or macrophage‐conditioned media, the Se‐nHA/PC microspheres effectively promoted the osteogenic differentiation of human periodontal ligament stem cells (hPDLSCs). Furthermore, the Se‐nHA/PC microspheres demonstrated anti‐inflammatory effects in a periodontitis rat model by scavenging ROS and suppressing pro‐inflammatory cytokines. The Se‐nHA/PC microspheres are also distinguished by their capacity to decrease alveolar bone loss, reduce osteoclast activity, and boost osteogenic factor expression. Therefore, the biomimetic Se‐nHA/PC composite microspheres have efficient ROS‐scavenging, anti‐inflammatory, and osteogenic abilities and can be used as a multifunctional filling material for inflammatory periodontal tissue regeneration.

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“…The physiological functions of some bacteria of the same genus and different species are quite different, such as Bacillus subtilis and Bacillus cereus of the genus Bacillus (Porcellato et al, 2016). Bacillus subtilis has been extensively applied in food industry, plant disease resistance, and biomedicine (Chen et al, 2022;Xu et al, 2021). Bacillus cereus is a typical conditional pathogen (Porcellato et al, 2016).…”

Section: Introductionmentioning

confidence: 99%

Single-molecule real-time sequencing reveals differences in bacterial diversity in raw milk in different regions and seasons in China

Liang

Wang

Zhao

et al. 2022

Journal of Dairy Science

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The quality of raw milk is a key factor influencing the whole dairy processing chain. The richness and diversity of bacteria in raw milk affect its quality and safety. However, traditional microbial detection methods mainly depend on the known microbe culture and are often time consuming. Thus, the development of efficient ways for supervising any possible microbiological contamination is desiderated. In the current work, single-molecule real-time (SMRT) sequencing, developed by Pacific Biosciences (PacBio), was applied to acquire long reads and applied for discrimination of bacteria at species level. Forty samples of raw milk obtained from Beijing, Hebei, Inner Mongolia, Shanghai, and Guangdong in China during summer, autumn, and winter were investigated. Among 35 bacteria species identified in these samples, Acinetobacter albensis, Pseudomonas gessardii, Pseudomonas weihenstephanensis, and Rahnella inusitata were the bacteria with the highest relative abundance in the overall sample, whereas the bacteria with the highest relative abundance in raw milk samples of different origins and seasons are different. Significant differences in bacterial richness and bacterial community diversity in raw milk grouped according to different production areas and different sampling seasons were confirmed by Welch's t-test. Interestingly, the transport distance and transport time positively correlated with the relative abundance of Pseudomonas weihenstephanensis, suggesting that the content of this bacteria was expected to be a standard for evaluating the freshness of raw milk. Pathogens Bacillus cereus and Klebsiella pneumoniae were detected in most samples, indicating that the raw milk was at risk of contamination by pathogenic bacteria. Moreover, the findings of this study provide important evidence for quality and safety monitoring and biological control of raw milk.

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Enhanced treatment of organic matters in starch wastewater through Bacillus subtilis strain with polyethylene glycol-modified polyvinyl alcohol/sodium alginate hydrogel microspheres

Cited by 19 publications

References 46 publications

An Innovative Look into Ammonium Nitrogen Removal Using Algae and Zeolites as an Element of a Circular Bioeconomy

An Innovative Look into Ammonium Nitrogen Removal Using Algae and Zeolites as an Element of a Circular Bioeconomy

A Biomimetic Se‐nHA/PC Composite Microsphere with Synergistic Immunomodulatory and Osteogenic Ability to Activate Bone Regeneration in Periodontitis

Single-molecule real-time sequencing reveals differences in bacterial diversity in raw milk in different regions and seasons in China

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