Eco-friendly larvicide of Amphora coffeaeformis and Scenedesmus obliquus microalgae extracts against Culex pipiens

Hassan, Marwa E.; Mohafrash, Samia M.M.; Fallatah, Sahar Ahmed; El-Sayed, Abo El-Khair B.; Mossa, Abdel‐Tawab H.

doi:10.1007/s10811-021-02440-0

Cited by 13 publications

(9 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This ω-3 is an essential FA of the greatest importance for humans and mammals, and can be metabolized into another longer ω-3 PUFA, such as eicosapentaenoic acid (EPA, C20:5 ω-3) and docosahexaenoic acid (DHA, C22:6 ω-3) [ 4 ]. These results are in line with what was previously reported for S. obliquus ; however, some studies have reported high abundances of EPA in this microorganism, which we do not report [ 69 , 70 , 71 , 72 ]. Nonetheless, variations in cultivation might justify the absence of EPA, as salinity, nitrogen, and nutrient stress affect the composition and yield of FA [ 73 , 74 , 75 , 76 ].…”

Section: Discussionsupporting

confidence: 93%

Microalgae as Sustainable Bio-Factories of Healthy Lipids: Evaluating Fatty Acid Content and Antioxidant Activity

et al. 2021

View full text Add to dashboard Cite

The demand for sustainable and environmentally friendly food sources and food ingredients is increasing, and microalgae are promoted as a sustainable source of essential and bioactive lipids, with high levels of omega-3 fatty acids (ω-3 FA), comparable to those of fish. However, most FA screening studies on algae are scattered or use different methodologies, preventing a true comparison of its content between microalgae. In this work, we used gas-chromatography mass-spectrometry (GC-MS) to characterize the FA profile of seven different commercial microalgae with biotechnological applications (Chlorella vulgaris, Chlorococcum amblystomatis, Scenedesmus obliquus, Tetraselmis chui, Phaeodactylum tricornutum, Spirulina sp., and Nannochloropsis oceanica). Screening for antioxidant activity was also performed to understand the relationship between FA profile and bioactivity. Microalgae exhibited specific FA profiles with a different composition, namely in the ω-3 FA profile, but with species of the same phylum showing similar tendencies. The different lipid extracts showed similar antioxidant activities, but with a low activity of the extracts of Nannochloropsis oceanica. Overall, this study provides a direct comparison of FA profiles between microalgae species, supporting the role of these species as alternative, sustainable, and healthy sources of essential lipids.

show abstract

Section: Discussionsupporting

confidence: 93%

Microalgae as Sustainable Bio-Factories of Healthy Lipids: Evaluating Fatty Acid Content and Antioxidant Activity

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Therefore, the use of microalgae to control mosquito larvae is accessible in the natural habitat and might not be opposed by the public. In the present study, A. coffeaeformis extract exhibited larvicidal activity against C. pipiens which might be due to the high content of bioactive polyphenolics, this agree with Hassan, Mohafrash, et al (2021) who revealed that acetone extract of A. coffeaeformis showed moderate larvicidal activity against C. pipiens .…”

Section: Discussionsupporting

confidence: 92%

“…A. coffeaeformis extract showed significant concentrations of many antioxidant polyphenols. The extract is rich in gallic acid, naringenin, chlorogenic acid, caffeic acid, catechin, p‐coumaric acid methyl gallate, syringic acid vanillin, taxifolin, protocatechuic acid, cinnamic acid, phydroxybenzoic acid and kaempferol (El‐Sayed et al, 2018; Hassan, Mohafrash, et al, 2021). It was suggested these phenolic acids have combined effect responsible for larvicidal potency against mosquito larvae (Valentina et al, 2015).…”

Section: Discussionmentioning

confidence: 99%

Assessment of the chemical profile and potential biocontrol of Amphora coffeaeformis against foodborne pathogens and Culex pipiens L. to ensure food safety

Abdel‐Haleem,

Marrez,

El Raey

et al. 2024

Journal of Food Safety

View full text Add to dashboard Cite

The extensive use of synthetic antibiotics and insecticides in controlling microbes and insect spreads led to a build‐up of resistance strains and caused negative impacts on human health through bioaccumulation in food and the environment. The present study assessed the antimicrobial activity of Amphora coffeaeformis (A. coffeaeformis) ethanolic extract against foodborne pathogenic microbes as well as assessed its ability to control Culex pipiens L. (C. pipiens) larvae. The gas chromatography–mass spectrum (GC/MS) and high‐performance liquid chromatography (HPLC) analysis showed that A. coffeaeformis extract was rich with phenolic compounds, organosulfur compounds, carboxylic acids, amino acids, organic quinoline, dipeptide and monosaccharide. The extract of A. coffeaeformis showed antibacterial capability against all tested bacteria, with minimal inhibition concentration (MIC) values ranging from 20.2 to 66.7 g/mL, as well as antifungal effects against all tested mycotoxigenic fungi, with MIC values ranging from 113.62, 68.95 and 49.37 μg/mL mg/mL. Furthermore, the extract showed high larvicidal activity against C. pipiens larvae at 24, 48, and 72 h, respectively. LC50 values decreased gradually with the treatment period. Likewise, the adult emergence and growth index were significantly negatively related to increasing extract concentrations. Moreover, the extract exhibited a noteworthy depletion in the reproductive potential and increased sterility index of C. pipiens females developed of treated larvae. Besides a reduction in egg hatching percent, increase pupal malformations, increase and adult abnormalities. C. pipiens biochemical markers; glutathione‐S‐transferase, carboxylesterase, acetylcholinesterase, α‐esterase and cytochrome P‐450 showed significant alteration after the extract exposure. Overall, these findings promise the application possibility of A. coffeaeformis extract as a biopreservator against foodborne pathogens and as bioinsecticides for mosquito control as well.

show abstract

“…The phenolic compounds in the hydromethanolic extracts of TN and TP were quantified using HPLC (Agilent 1,260 series) as described by Hassan et al (2021). The analysis was conducted at the Central Laboratories Network, National Research Centre, Egypt, as described in Supporting Information S2.…”

Section: Identification Of Polyphenolic Compounds Using Hplcmentioning

confidence: 99%

HPLC and GC–MS–based metabolic profiles and in vivo anticonvulsant, sedative, and antinociceptive potentials of truffles Tirmania nivea and Tirmania pinoyi hydromethanolic extracts in mice

Aboutabl

Elkhateeb

Masoud

et al. 2022

Biomedical Chromatography

View full text Add to dashboard Cite

GC-MS and HPLC analyses of the hydromethanolic extracts of the truffles Tirmania nivea (TN) and Tirmania pinoyi (TP) revealed the presence of 18 metabolites and 11 polyphenols, respectively. In vivo, TP extract protected against subcutaneous pentylenetetrazole (scPTZ) and maximal electric shock (MES)-induced convulsions faster than TN extract. TP extract (100 and 300 mg/kg) showed 100% protection and longer duration than TN extract in the scPTZ test. Similarly, at 300 mg/kg, TP demonstrated a quicker start (75%) and longer duration of action (100%) than TN in MES test. In the scPTZ test, ED 50 of TP demonstrated greater anticonvulsant efficacy than that of TN. In mice given TP and TN treatments, the brain GABA levels noticeably increased. TP (100 and 300 mg/kg) produced a notable sedative effect in open-field test, whereas TN (100 or 300 mg/kg) and TP (300 mg/kg) reduced sleep latency by 52%, 45%, and 79%, respectively. In writhing test, TN (100 or 300 mg/kg) significantly enhanced analgesic efficacy by 50 and 87%, respectively.Comparatively, in formalin test, TP and TN at a dosage of 300 mg/kg decreased the length of the licking by 34 and 59%, respectively. For the first time, this study explains the anticonvulsant, sedative, central, and peripheral analgesic activities of truffle extracts.

show abstract

Eco-friendly larvicide of Amphora coffeaeformis and Scenedesmus obliquus microalgae extracts against Culex pipiens

Cited by 13 publications

References 52 publications

Microalgae as Sustainable Bio-Factories of Healthy Lipids: Evaluating Fatty Acid Content and Antioxidant Activity

Microalgae as Sustainable Bio-Factories of Healthy Lipids: Evaluating Fatty Acid Content and Antioxidant Activity

Assessment of the chemical profile and potential biocontrol of Amphora coffeaeformis against foodborne pathogens and Culex pipiens L. to ensure food safety

HPLC and GC–MS–based metabolic profiles and in vivo anticonvulsant, sedative, and antinociceptive potentials of truffles Tirmania nivea and Tirmania pinoyi hydromethanolic extracts in mice

Contact Info

Product

Resources

About