Immobilization on cotton cloth pieces is ideal for storage and conservation of microalgae

Prasad, Ravindra; Shabnam, Nisha; Pardha-Saradhi, P.

doi:10.1016/j.algal.2016.10.005

Cited by 17 publications

(10 citation statements)

References 18 publications

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“…As two of the unmodified PHEMA hydrogels, significant differences were observed for the bioactivities of macroporous E25 PHEMA and nonporous E60 PHEMA specimens, which showed the importance of the porous surface structures for a proper algal immobilization process. According to the current literature, various porous surfaces had been tested for the immobilization of microalgae, such as electrospun nanofibers of chitosan; polycarbohydrate with grooves; controlled‐pore glass; cotton cloth; and cellulose nitrate filter paper revealing the successful entrapment capabilities of porous structures with sufficient pore sizes that can allow adhesion of the targeted‐cells.…”

Section: Resultsmentioning

confidence: 99%

Application of poly(2‐hydroxyethyl methacrylate) hydrogel disks for the immobilization of three different microalgal species

Eroğlu

Wijihastuti

Grenik

et al. 2018

J of Chemical Tech & Biotech

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BACKGROUND Algal growth on solid surfaces confers the advantage of combining the algal harvesting and bioprocessing steps at a single stage, in addition to the easier handling of the immobilized cells that occupy a reduced amount of space. The current work employed the application of macroporous poly(2‐hydroxyethyl methacrylate) (PHEMA) hydrogel disks as a water‐insoluble, non‐toxic and recyclable immobilization matrix for different microalgal strains (Nannochloropsis sp., Dunaliella salina, and Botryococcus braunii) that offer value‐added products for various commercial applications. RESULTS The study demonstrated the effect of variations in the surface characteristics of the algal strains and hydrogel surfaces on the immobilization efficiencies. Gelatin was further used to modify PHEMA hydrogels to achieve higher bioaffinity and surface hydrophilicity. The results showed that highly salt‐tolerant microalgal cells (Dunaliella salina, Nannochloropsis sp.) had significantly higher tendencies to attach on the gelatin‐modified PHEMA hydrogel compared with the freshwater B. braunii colonies; embedded within an extracellular matrix mainly made of hydrophobic components, which displayed better attachment to the unmodified PHEMA hydrogels. CONCLUSION The proposed PHEMA hydrogels are easily‐manufactured and highly durable materials with the hydrogel disks still retaining their integrity after several years when in contact with a liquid. PHEMA disks also have the benefits of having adjustable porosities by changing the composition of the polymerization mixture, and modifiable surface properties by simply binding various synthetic or natural molecules on their surfaces, which can bring several new opportunities for harvesting various microalgal cells with different surface morphologies and chemical compositions. © 2018 Society of Chemical Industry

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Section: Resultsmentioning

confidence: 99%

Application of poly(2‐hydroxyethyl methacrylate) hydrogel disks for the immobilization of three different microalgal species

Eroğlu

Wijihastuti

Grenik

et al. 2018

J of Chemical Tech & Biotech

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“…Microbial cells samples for SEM imaging were prepared using method described elsewhere (Prasad et al 2016). The samples were then coated with Au-Pd with Jeol JEC-300 auto fine coater and viewed under scanning electron microscope Jeol JSM 6610 at 10 kV.…”

Section: Hmx Degradation Experimentsmentioning

confidence: 99%

Aerobic biodegradation of HMX by Planomicrobium flavidum

et al. 2018

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In this report, aerobic biodegradation of octahydro-1,3,5,7-tetranitro-1,3,5,7-tetrazocine or high melting explosive (HMX), a highly explosive chemical by Planomicrobium flavidum strain S5-TSA-19, an isolate from an explosive-contaminated soil, was investigated. The isolate S5-TSA-19 degraded 70% of HMX in 20 days during which time nitrite ion was produced with the subsequent formation of metabolites, viz. methylenedintramine and N-methyl-N,N′-dinitromethanediamine with molecular weights 136 Da and 149 Da, respectively. The degradation mechanism was found to follow first-order kinetics with a half-life of 11.55 days and formation of above intermediates indicate single nitrite elimination pathway. The proliferation of isolate S5-TSA-19 in the absence of nitramines indicates the cometabolic degradation of HMX. Isolate S5-TSA-19 can thus be used as futuristic microbe for degradation of HMX at explosive-contaminated site.

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“…The maintenance and conservation of microalgae are tedious and require specific conditions. Due to several limitations, researchers have developed an easy and convenient method for long-term preservation and conservation of microalgae which is by using cotton fabric for the immobilization of microalgae [15]. Figure 5 presents the culture of microalgae immobilized on cotton cloth and SEM image of algal cell.…”

Section: Current Trends In Fashion Technology and Textile Engineeringmentioning

confidence: 99%

“…Algal cultures preserved using this method can be transported with ease across the world. [15] Crop and harvesting procedure Laboratory Sorghum (tropical crop belong to grass famiy) germinating test…”

Section: Immobilizing On Cotton Clothmentioning

confidence: 99%

Cotton Cloth: Diversified Applications beyond Fashion and Wearable Cloth

Ismail¹

2018

CTFTTE

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Recent developments in the field of textile industry highlighting cotton cloth/fabric to a new interest in another application. The cotton cloth that is well known as one of the most comfortable wearable fabric has positioning itself to various new significant functions and application especially in the area of wastewater treatment technology, medical and surgery devices, electronic applications, enzyme and lipase production, crop and harvesting procedure, energy storage devices and etc. This article emphasizing few studies from various researches regarding the use of cotton cloth either as a substrate, template material, function modification or even as storage or covering materials. This proved the versatility of cotton cloth to be used in vast areas of technology.

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Immobilization on cotton cloth pieces is ideal for storage and conservation of microalgae

Cited by 17 publications

References 18 publications

Application of poly(2‐hydroxyethyl methacrylate) hydrogel disks for the immobilization of three different microalgal species

Application of poly(2‐hydroxyethyl methacrylate) hydrogel disks for the immobilization of three different microalgal species

Aerobic biodegradation of HMX by Planomicrobium flavidum

Cotton Cloth: Diversified Applications beyond Fashion and Wearable Cloth

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