Production, purification and application of polysaccharide-based bioflocculant by Paenibacillus mucilaginosus

Tang, Jiayi; Qi, Suijian; Li, Zhigang; An, Qun Li; Xie, Mingquan; Yang, Bo; Wang, Yonghua

doi:10.1016/j.carbpol.2014.07.045

Cited by 45 publications

(21 citation statements)

References 32 publications

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“…A lower dosage of bioflocculants with concomitant high flocculating activity will definitely reduce treatment cost [54]. The bioflocculant produced by Paenibacillus mucilaginosus achieved the highest flocculating activity at a dosage of 2.0 mg/L, and similar to the present study, higher or lower dosages reduced flocculating activity [64].…”

Section: Effect Of Bioflocculant Dosage On Flocculating Activitysupporting

confidence: 82%

“…The absorption peaks displayed in the range from 1000 to 1200 cm −1 were known to be physiognomies of all sugar derivatives [46]. The FTIR spectrum of the produced bioflocculant was consistent with the results of other bioflocculants produced by different microorganisms [35,47,64]. The presence of hydroxyl and carboxyl groups serves as a further affirmation that the bioflocculant is predominantly a polysaccharide [13].…”

Section: Scanning Electron Microscopy Imaging (Sem)supporting

confidence: 79%

“…The infrared spectrum of the bioflocculant revealed a broad stretching peak at around 3429 cm −1 , which is representative of hydroxyl group, and a weak C-H stretching band at 2928 cm −1 [63]. Two typical absorptions of carboxyl groups were indicated by peaks at 1647 cm −1 (C=O asymmetric stretching vibrations) and 1416 cm −1 (C=O symmetric stretching vibrations) [64]. The symmetric The infrared spectrum of the bioflocculant revealed a broad stretching peak at around 3429 cm´1, which is representative of hydroxyl group, and a weak C-H stretching band at 2928 cm´1 [63].…”

Section: Fourier Transform Infrared Spectrophotometry (Ftir) Analysismentioning

confidence: 98%

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Assessment of Bacillus pumilus Isolated from Fresh Water Milieu for Bioflocculant Production

et al. 2016

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Abstract:A bioflocculant produced by a Bacillus species was assessed with regards to its physiochemical properties and flocculating efficiency. Identification of the bacteria through 16S rDNA sequencing revealed it to have 99% similarity to Bacillus pumilus strain ZAP 028. The optimum culture conditions for bioflocculant production by the bacterial strain were inoculum size of 4% (v/v), maltose as a sole carbon source, multiple nitrogen source (yeast extract, urea and ammonium sulfate) and medium initial pH 7. The bioflocculant was thermostable with high flocculating rate for kaolin suspension at low dosage 0.1 mg/mL over a wide pH range (3-11). Fourier-transform infrared (FTIR) spectroscopy analysis result of the purified bioflocculant showed that hydroxyl, amino and carboxyl groups were the main functional moieties in its molecular structure. The bioflocculant was composed of sugar (75.4%), protein (5.3%) and uronic acid (15.4%). Scanning electron microscopy (SEM) showed a dendritic bioflocculant structure and the energy dispersive X-ray spectroscopy (EDX) analysis revealed that the purified bioflocculant had weight fractions of elements as follows: 22.71% of C, 11.56% of N, 41.60% of O, 0.51% of S and 7.98% of P. The bioflocculant produced had strong flocculating activity and high thermal stability, which affords its utilization in industrial processes.

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Section: Effect Of Bioflocculant Dosage On Flocculating Activitysupporting

confidence: 82%

Section: Scanning Electron Microscopy Imaging (Sem)supporting

confidence: 79%

Section: Fourier Transform Infrared Spectrophotometry (Ftir) Analysismentioning

confidence: 98%

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Assessment of Bacillus pumilus Isolated from Fresh Water Milieu for Bioflocculant Production

et al. 2016

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“…; Tang et al. ). For example, the molecular weight of the bioflocculant produced by Paenibacillus elgii B69 was about 3.5 × 10 6 Da based on the calibration curve with standard dextran.…”

Section: Factors Influencing the Flocculating Activity Of Bioflocculantmentioning

confidence: 98%

Implications for public health demands alternatives to inorganic and synthetic flocculants: bioflocculants as important candidates

et al. 2016

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Chemical flocculants are generally used in drinking water and wastewater treatment due to their efficacy and cost effectiveness. However, the question of their toxicity to human health and environmental pollution has been a major concern. In this article, we review the application of some chemical flocculants utilized in water treatment, and bioflocculants as a potential alternative to these chemical flocculants. To the best of our knowledge, there is no report in the literature that provides an up‐to‐date review of the relevant literature on both chemical flocculants and bioflocculants in one paper. As a result, this review paper comprehensively discussed the various chemical flocculants used in water treatment, including their advantages and disadvantages. It also gave insights into bioflocculants production, challenges, various factors influencing their flocculating efficiency and their industrial applications, as well as future research directions including improvement of bioflocculants yields and flocculating activity, and production of cation‐independent bioflocculants. The molecular biology and synthesis of bioflocculants are also discussed.

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“…These bacteria take part on the biogeochemical cycle of potassium, phosphorus and other elements. It is able to degrade insoluble soil minerals releasing nutrient ions (potassium and watersoluble phosphorus), useful for plants [55][56][57][58][59]. P. mucilaginosus is typical silicate bacteria, has long been used as a biofertilizer in agriculture and has recently shown potential in bioleaching and wastewater engineering [60].…”

Section: Rhizobox Experimentsmentioning

confidence: 99%

Use of Active Microrganisms in Crop Production - A Review

Holečková¹,

Kulhánek²,

Balík³

2017

J Food Process Technol

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Phosphorus, other elements and natural resources are scarce, and so it is necessary to find alternative strategy to increase availability of nutrients for plants. One possible way could be application of so-called bioeffectors (BE) which should improve the mobilisation of nutrients (especially phosphorus) from less available forms in soil, improve plant growth and contribute to mycorrhiza development. BEs are commercially supplied products which contain active substances (live microorganisms and active natural compounds). BEs can be used in organic agriculture, because their application represents no risk for the environment. Several studies and experiments are focused on impact of bioeffectors' application and their active compounds on plants. Experiments were performed under different conditions (field, pot, greenhouse), on various testing plants and on various bioeffectors. These BEs have been used as a fertilizer, fungicide or molluscicide and they were applied either to soil, seed or leaf. Application should increase growth of root system and above-ground part of plants and also nutrient uptake. These products are developed for a wide variety of crops (e.g. maize, wheat, tomatoes, rape, spinach, grass, ornamentals). This review summarizes the most recent knowledge in this scientific field. Use of Active Microrganisms in Crop Production-A ReviewZlata Holečková*, Martin Kulhánek and Jiří Balík Department of Agro-Environmental Chemistry and Plant Nutrition, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences, Prague, Czech RepublicMycorrhiza is highly effective in absorbing nutrients from the soil, especially for nitrogen and phosphorus. Nitrogen and phosphorus are often limited in supply and fungal hyphae are able to absorb these nutrients more efficiently and from greater area of soil than the roots, which leads to increased plant growth. This causes mutually beneficial linkage between plants and fungi, the sugars (organic carbon) formed during photosynthesis are transported to the roots and the fungi are taken and the nutrients are absorbed by fungal hyphae from the soil and are transported into plants [10,11]. Arbuscular mycorrhizal fungi colonise most agricultural species (exceptions include Brassica spp., and Lupinus spp.) and play an important role in the phosphorus nutrition of many farming systems worldwide, especially on soils with low available phosphorus [3]. Literature ReviewExamples of plant strategies for phosphorus obtaining: One alternative strategy in plant production can be use of unmycorrhizal organism's P mobilizing nutrients, which should help to increased nutrient availability for plants. These substances are so-called bioeffectors.

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Production, purification and application of polysaccharide-based bioflocculant by Paenibacillus mucilaginosus

Cited by 45 publications

References 32 publications

Assessment of Bacillus pumilus Isolated from Fresh Water Milieu for Bioflocculant Production

Assessment of Bacillus pumilus Isolated from Fresh Water Milieu for Bioflocculant Production

Implications for public health demands alternatives to inorganic and synthetic flocculants: bioflocculants as important candidates

Use of Active Microrganisms in Crop Production - A Review

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