Endophytic Bacillus cereus ERBP—Clitoria ternatea interactions: Potentials for the enhancement of gaseous formaldehyde removal

2016 ◽  
Vol 126 ◽  
pp. 10-20 ◽  
Author(s):  
Gholamreza Khaksar ◽  
Chairat Treesubsuntorn ◽  
Paitip Thiravetyan
Keyword(s):  
Bacillus Cereus ◽  
Clitoria Ternatea ◽  
Formaldehyde Removal ◽  
Gaseous Formaldehyde

scholarly journals Variation in Formaldehyde Removal Efficiency among Indoor Plant Species

HortScience ◽  
2010 ◽  
Vol 45 (10) ◽  
pp. 1489-1495 ◽  
Author(s):  
Kwang Jin Kim ◽  
Myeong Il Jeong ◽  
Dong Woo Lee ◽  
Jeong Seob Song ◽  
Hyoung Deug Kim ◽  
...  
Keyword(s):  
Leaf Area ◽  
Removal Efficiency ◽  
Native Plants ◽  
Psidium Guajava ◽  
Osmunda Japonica ◽  
Foliage Plants ◽  
Formaldehyde Removal ◽  
Selaginella Tamariscina ◽  
Anthurium Andraeanum ◽  
Gaseous Formaldehyde

The efficiency of volatile formaldehyde removal was assessed in 86 species of plants representing five general classes (ferns, woody foliage plants, herbaceous foliage plants, Korean native plants, and herbs). Phytoremediation potential was assessed by exposing the plants to gaseous formaldehyde (2.0 μL·L−1) in airtight chambers (1.0 m3) constructed of inert materials and measuring the rate of removal. Osmunda japonica, Selaginella tamariscina, Davallia mariesii, Polypodium formosanum, Psidium guajava, Lavandula spp., Pteris dispar, Pteris multifida, and Pelargonium spp. were the most effective species tested, removing more than 1.87 μg·m−3·cm−2 over 5 h. Ferns had the highest formaldehyde removal efficiency of the classes of plants tested with O. japonica the most effective of the 86 species (i.e., 6.64 μg·m−3·cm−2 leaf area over 5 h). The most effective species in individual classes were: ferns—Osmunda japonica, Selaginella tamariscina, and Davallia mariesii; woody foliage plants—Psidium guajava, Rhapis excels, and Zamia pumila; herbaceous foliage plants—Chlorophytum bichetii, Dieffenbachia ‘Marianne’, Tillandsia cyanea, and Anthurium andraeanum; Korean native plants—Nandina domestica; and herbs—Lavandula spp., Pelargonium spp., and Rosmarinus officinalis. The species were separated into three general groups based on their formaldehyde removal efficiency: excellent (greater than 1.2 μg·m−3 formaldehyde per cm2 of leaf area over 5 h), intermediate (1.2 or less to 0.6), and poor (less than 0.6). Species classified as excellent are considered viable phytoremediation candidates for homes and offices where volatile formaldehyde is a concern.

scholarly journals Efficiency of Volatile Formaldehyde Removal by Indoor Plants: Contribution of Aerial Plant Parts versus the Root Zone

2008 ◽  
Vol 133 (4) ◽  
pp. 521-526 ◽  
Author(s):  
Kwang Jin Kim ◽  
Mi Jung Kil ◽  
Jeong Seob Song ◽  
Eun Ha Yoo ◽  
Ki-Cheol Son ◽  
...  
Keyword(s):  
Root Zone ◽  
Time Interval ◽  
Formaldehyde Concentration ◽  
Plant Parts ◽  
Indoor Plants ◽  
Removal Capacity ◽  
Formaldehyde Removal ◽  
Internal Concentration ◽  
Gaseous Formaldehyde ◽  
Formaldehyde Metabolism

The contribution of aerial plant parts versus the root zone to the removal of volatile formaldehyde by potted Fatsia japonica Decne. & Planch. and Ficus benjamina L. plants was assessed during the day and night. The removal capacity of the entire plant, aerial plant parts, and root zone was determined by exposing the relevant parts to gaseous formaldehyde (2 μL·L−1) in airtight chambers (1.0 m3) constructed of inert materials. The rate of formaldehyde removal was initially rapid but decreased as the internal concentration diminished in the chamber. To compare the removal efficiency between species and plant parts, the time interval required to reach 50% of the initial concentration was determined (96 and 123 min for entire plants of F. japonica and F. benjamina, respectively). In both species, the aerial plant parts reduced the formaldehyde concentration during the day but removed little during the night. However, the root zone eliminated a substantial amount of formaldehyde during the day and night. The ratio of formaldehyde removal by aerial plant parts versus the root zone was similar for both species, at ≈1:1 during the day and 1:11 at night. The effectiveness of the root zone in formaldehyde removal was due primarily to microorganisms and roots (≈90%); only about 10% was due to adsorption by the growing medium. The results indicate that the root zone is a major contributor to the removal of formaldehyde. A better understanding of formaldehyde metabolism by root zone microflora should facilitate maximizing the phytoremediation efficiency of indoor plants.

Efficient removal of gaseous formaldehyde in air using hierarchical titanate nanospheres with in situ amine functionalization

2016 ◽  
Vol 18 (27) ◽  
pp. 18161-18168 ◽  
Author(s):  
Feng Chen ◽  
Shengwei Liu ◽  
Jiaguo Yu
Keyword(s):  
Amine Functionalization ◽  
Efficient Removal ◽  
Formaldehyde Removal ◽  
Formaldehyde In Air ◽  
Gaseous Formaldehyde

Amine-grafted titanate nanospheres are fabricated as efficient and recyclable adsorbents for formaldehyde removal.

scholarly journals Antimicrobial activity of some medicinal plant extracts against Gram positive and Gram negative bacteria in Bangladesh

2018 ◽  
Vol 3 (4) ◽  
pp. 405-411
Author(s):  
Md Mizanur Rahman ◽  
Md Raquib Shahriar ◽  
Nigar Sultana Meghla ◽  
Tasneema Ishika ◽  
Pravas Chandra Roy ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Bacillus Cereus ◽  
Plant Extracts ◽  
Nigella Sativa ◽  
Ethanolic Extract ◽  
Centella Asiatica ◽  
Phoenix Dactylifera ◽  
Salmonella Typhi ◽  
Zone Of Inhibition ◽  
Clitoria Ternatea

Antibacterial active compounds isolated from higher plants appear to be one of the most important alternative approaches to contain antibiotic resistance and the management of disease. The present study was aimed at to investigate the antibacterial activity of some medicinal plant species including seeds namely Centella asiatica, Oxalis corniculata, Phoenix dactylifera, Clitoria ternatea and Nigella sativa. The methanolic and ethanolic extract of Centella asiatica, Oxalis corniculata, Phoenix dactylifera and Clitoria ternatea was investigated for antimicrobial activity at different concentrations by using disc diffusion method against some bacterial strains with standard antibiotic cephachlore (10 μg). The result demonstrated that all the extracts showed antibacterial activities against the isolates, which were dose dependent. The ethanolic extract of Oxalis corniculata at a concentration of 50 μl/disc had the highest effect on the test organism B. subtilis, Salmonella typhi and E. coli with 9.3, 9.7 and 10.8 mm diameter of zone of inhibition respectively while at the same concentration the extract of Clitoria ternatea had a higher antimicrobial activity on Bacillus cereus with 11.3 mm diameter of zone of inhibition. The activities of the plant extracts on the tested pathogens were not as effective as the standard commercial antibacterial disc but was significant. In case of Nigella sativa, Pseudomonas aeruginosa was sensitive to both the ethanolic extract and oils at different concentration. Salmonella typhi shows the same degree of inhibition for ethanolic extract as Bacillus cereus, but greater inhibition for oils. Of all the bacteria, Pseudomonas aeruginosa was the most sensitive bacteria against ethanolic extract and oils, while Bacillus cereus was the most resistant bacteria. Generally, the oils of Nigella sativa sample had higher antibacterial activity against bacteria than ethanolic extract. All the extracts are inhibitory to most common human pathogen S. typhi. The results suggest that the different plant extracts has a significant scope to develop a novel broad spectrum of antibacterial herbal formulations.Asian J. Med. Biol. Res. December 2017, 3(4): 405-411

scholarly journals DAYA HAMBAT EKSTRAK ETANOL BUNGA TELANG (Clitoria Ternatea L) TERHADAP BAKTERI PERUSAK PANGAN

2019 ◽  
Vol 19 (2) ◽  
pp. 218
Author(s):  
Ervina Fauzia Riyanto ◽  
Rochmanah Suhartati
Keyword(s):  
Pseudomonas Aeruginosa ◽  
Bacillus Cereus ◽  
Clitoria Ternatea

<span class="fontstyle0">Makanan dapat menjadi tempat hidup dan berkembangbiak satu atau lebih jenis<br />mikroorganisme, karena mengandung nutrisi untuk pertumbuhan mikroorganisme. Mikroorganisme<br />tersebut dapat menyebabkan kerusakan pada makanan dan menimbulkan permasalaan kesehatan.<br />Mikroorganisme yang berperan dalam proses pembusukan makanan misalnya </span><span class="fontstyle0">Pseudomonas<br />aeruginosa </span><span class="fontstyle0">dan </span><span class="fontstyle0">Bacillus cereus</span><span class="fontstyle0">. Upaya menghambat pertumbuhan bakteri tersebut dapat<br />memanfaatkan bunga telang yang diketahui mengandung senyawa fitokimia seperti: alkaloid,<br />flavonoid, tannin, saponin, sebagai antibakteri terhadap pertumbuhan mikroorganisme dan serangga.<br />Penelitian ini bertujuan mengetahui daya hambat ekstrak etanol bunga telang (</span><span class="fontstyle0">Clitoria ternatea L</span><span class="fontstyle0">)<br />terhadap bakteri patogen perusak pangan yaitu </span><span class="fontstyle0">Pseudomonas aeruginosa </span><span class="fontstyle0">dan </span><span class="fontstyle0">Bacillus cereus. </span><span class="fontstyle0">Metode<br />yang digunakan pada penelitian ini adalah metode eksperimen. Ekstrak etanol bunga telang diekstraksi<br />dengan metode maserasi. Daya hambat bakteri diukur dari diameter zona hambat ekstrak etanol bunga<br />telang dengan metode difusi agar Kirby Bauer. Hasil penelitian menunjukan terdapat daya hambat<br />ekstrak etanol terhadap bakteri </span><span class="fontstyle0">Pseudomonas aeruginosa </span><span class="fontstyle0">pada konsentrasi 10% hingga 100%<br />sedangkan daya hambat terhadap bakteri </span><span class="fontstyle0">Bacillus cereus </span><span class="fontstyle0">terdapat pada konsentrasi 30% sampai 100%.<br />Hasil penelitian dapat disimpulkan bahwa konsentrasi hambat minimal (KHM) ekstrak etanol bunga<br />telang terhadap bakteri </span><span class="fontstyle0">Pseudomonas aeruginosa </span><span class="fontstyle0">adalah 10% dan konsentrasi hambat minimal (KHM)<br />ekstrak etanol bunga telang terhadap bakteri </span><span class="fontstyle0">Bacillus cereus </span><span class="fontstyle0">adalah 30%.</span> <br /><br />

scholarly journals Phytoremediation of Formaldehyde in Indoor Environment With Common House Plants and Pseudomonas Chlororaphis

2021 ◽  
pp. 1-7
Author(s):  
Seemaa Ghate ◽  
Keyword(s):  
Indoor Environment ◽  
Pseudomonas Chlororaphis ◽  
Health Issues ◽  
Indoor Pollutants ◽  
Removal Capacity ◽  
Epipremnum Aureum ◽  
Formaldehyde Removal ◽  
Chlorophytum Comosum ◽  
Gaseous Formaldehyde ◽  
Air Circulation

Low light survivor house plants were assessed for their formaldehyde removal capacity from indoor environment. Low ventilation leading to poor air circulation in indoor environment has become a matter of grave concern as it leads to health issues. Phytoremediation technology is being studied in such situations. The capacity of plants in absorbing indoor pollutants can be enhanced through use of bacteria helping phytoremediation process. The gaseous formaldehyde of about 5 ppm was released into the static chamber of volume 1 m3 . Selected test plants were Aglaonema commutatum, Chlorophytum comosum, Sansevieria trifasciata and Epipremnum aureum. Medium in which plants were growing was inoculated with Pseudomonas chlororaphis, which helps the process of phytoremediation. Activated charcoal was also added in the medium, to increase the absorptive surface. The exposure given was for 24 hours. Experiment was replicated for three times. Air quality in the chamber was monitored on advanced Formaldehyde meter, at the start of the experiment and after 24 hours. Leaves of the plants were analysed by DNPH on LCMS method for quantification of Formaldehyde. Quantification of Formaldehyde from leaves ranged between 0.03–4.7 ppm. Formaldehyde meter showed reduction in formaldehyde quantity ranges from 1.999 to 0 ppm in 24 hours. This clearly indicates that selected plants have enhanced limited capacity of formaldehyde absorption in synergy with Pseudomonas chlororaphis.

scholarly journals Study of the structure and characteristics of mesoporous TiO2 photocatalyst, and evaluation of its factors on gaseous formaldehyde removal by the analysis of ANOVA and S/N ratio

RSC Advances ◽  
2018 ◽  
Vol 8 (39) ◽  
pp. 22199-22215 ◽  
Author(s):  
Shiuan-Shinn Lee ◽  
Chi-Yuan Lu ◽  
Min-Chang Wu
Keyword(s):  
Hydrothermal Method ◽  
Mesoporous Tio2 ◽  
Tio2 Photocatalyst ◽  
Formaldehyde Removal ◽  
One Step ◽  
Gaseous Formaldehyde ◽  
Modified Hydrothermal Method

This study differs from previous studies of TiO2/SiO2 in that 0.5–10 μm microsized TiO2-rutile based catalysts (TR catalysts) with varying proportions of titanium and silicon were synthesized using a one-step modified hydrothermal method.

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