Effect of reaction conditions on the lifetime of SAPO-34 catalysts in methanol to olefins process – A review

Ahmad, Muhammad Sheraz; Cheng, Chin Kui; Bhuyar, Prakash; Atabani, A.E.; Pugazhendhi, Arivalagan; Lan, Nguyễn Thúy; Witoon, Thongthai; Lim, Jun Wei; Juan, Joon Ching

doi:10.1016/j.fuel.2020.118851

Cited by 75 publications

(29 citation statements)

References 102 publications

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“…was active against pathogenic bacteria with the presence of pyridine and n-butanol [33]. [38,39]. The earlier report by Sarmah and Patel [40] also had reported that the triazine derivatives have potential against gram-positive bacteria such as B. subtilis and S. aureus and gram-negative bacteria such as P. aeruginosa and E. coli.…”

Section: Bioactive Compounds Analysis Of Cyanobacteria Extractmentioning

confidence: 99%

Exploration of bioactive compounds and antibacterial activity of marine blue-green microalgae (Oscillatoria sp.) isolated from coastal region of west Malaysia

et al. 2020

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Cyanobacteria is blue-green microalgae that produces a variety of secondary metabolites such as antibiotic, cytotoxic and antimicrobial agents. Present investigation proposed to study an extraction of active agents from Cyanobacteria and its antibacterial activity. The Cyanobacteria were collected, and isolated colony was found to be Oscillatoria sp. and it was grown in BG 11 medium for mass cultivation. Then the centrifuged biomass was weighed and used for extraction of bioactive compounds. GCMS analysis from Oscillatoria sp. determines fatty acid, triazine derivatives, pyridine derivatives, acridine derivatives. The result revealed that Oscillatoria sp. can play crucial roles as antibacterial agents because the methanolic extract are inhibiting the growth of S. aureus for gram-positive whereas P. aeruginosa for gram-negative bacteria. The crude extract was effective against S. aureus with the highest concentration, 100 mg/ml where area of the zone was 14.10 ± 0.8 mm. The crude extract actively inhibited P. aeruginosa at 75 and 100 mg/ml with highest area of inhibition were in the average of 13.23 ± 0.1 and 15.43 ± 0.2 mm. Finally, the antimicrobial activity was carried out by disc diffusion method with different concentrations of active compounds shows the MIC value in gram-positive bacteria was 30 µg/ml whereas for gram-negative bacteria was 25 µg/ml. Cyanobacteria extract should be preferred and considered to be new natural drug or antibiotics in pharmaceutical and health care industry. This coastal region should be studied further by researchers to study more information and benefits in the future.

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Section: Bioactive Compounds Analysis Of Cyanobacteria Extractmentioning

confidence: 99%

Exploration of bioactive compounds and antibacterial activity of marine blue-green microalgae (Oscillatoria sp.) isolated from coastal region of west Malaysia

et al. 2020

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“…To measure pH, 0.5 g samples were homogenized with 3 mL of distilled water and the homogenate was centrifuged at 2240 × g for 5 min. The supernatant was filtered, and the pH of the supernatant measured using pH meter (Biomed, UK) [26,33,34].…”

Section: Ph Determinationmentioning

confidence: 99%

Passion fruit (Passiflora edulis) peel powder extract and its application towards antibacterial and antioxidant activity on the preserved meat products

et al. 2020

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This study aimed to explore the antioxidant and antibacterial compounds in P. edulis peels and to identify the effectiveness of P. edulis peels extract on preserved meat. In this research studies, the antioxidant compound from sample extract of P. edulis peel is determined using total flavonoid and total phenolic content respectively. TPC of 7.273 ± 0.002 mg GAE/g extract was detected while TFC of 8.364 ± 0.002 mg QE/g extract was found significantly. LC-QTOF_MS confirmed the phenolic compounds in the P. edulis extract. Antibacterial ability of sample extract is proven by inhibition zone observed in agar plate that containing four types of foodborne pathogen extract exerted a strong antibacterial activity against three tested strains which were E. coli, Serratia and Aureus. The effectiveness of sample extract on meat antioxidant is determined using DPPH when percentage of scavenging activity up to 13%, ABTS with 60%, reducing power assay with 48% and metMY reach maximum percentage which is 70% at day 6. The pH value of marinated meat with sample extract indicated that the meat is safe and not required immediate consumption after 9 days. In conclusion, P. edulis peels extract can be considered as a natural antioxidant and antibacterial on meat as well as food preservative for frozen meat.

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“…Direct discharge of effluents will contaminate the environment and may impair the ecosystem (Rupani et al, 2010). POME is the most suitable raw material for microalgae development since it contains a high concentration of carbohydrates, proteins, nutrients (nitrogen and phosphorus), lipids, and minerals (Bhuyar et al, 2019a;Ahmad et al, 2020). Nannochloropsis sp.…”

Section: Articlementioning

confidence: 99%

Biodiesel production by microalgae Nannochloropsis sp. grown in palm oil mill effluent

Kanagesan

Palanisamy

Maniam

et al. 2020

Maejo Int. J. Energ. Environ. Comm. or MIJEEC

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A marine microalga, Nannochloropsis sp., was discovered in a water body in Teluk Cempedak, Kuantan, Pahang. In Nannochloropsis sp., for biomass and lipid synthesis, POME was used as a substitute medium. The isolated monoculture was grown in various concentrations of POME (5%, 10%, 15%, and 20%), as well as a standard control medium. Nannochloropsis sp. showed greater cell growth at 10% POME, with a maximum dry biomass of 1.504 g L-1 and extracted 35.9% lipid after 14 days of flask cultivation. Fatty acids namely oleic acid, linoleic acid, palmitic acid, and stearic acid were shown to be prominent in GC-MS analysis. The fatty acid oleic acid has been discovered to be the most abundant (73.40%). POME has the prospective to be used as a growth media for the cultivation of microalgae Nannochloropsis sp.

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Effect of reaction conditions on the lifetime of SAPO-34 catalysts in methanol to olefins process – A review

Cited by 75 publications

References 102 publications

Exploration of bioactive compounds and antibacterial activity of marine blue-green microalgae (Oscillatoria sp.) isolated from coastal region of west Malaysia

Exploration of bioactive compounds and antibacterial activity of marine blue-green microalgae (Oscillatoria sp.) isolated from coastal region of west Malaysia

Passion fruit (Passiflora edulis) peel powder extract and its application towards antibacterial and antioxidant activity on the preserved meat products

Biodiesel production by microalgae Nannochloropsis sp. grown in palm oil mill effluent

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