Extract of volatile oil and antibacterial & insecticidal activity of large red algae Gracilaria lemaneiformis
Vol: 34, Issue: 2, Page: 149-153
2018
- 73Usage
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Metrics Details
- Usage73
- Downloads66
- Abstract Views7
Artifact Description
The volatile oil of Gracilaria lemaneiformis was extracted by direct steam distillation and solvent extraction-steam distillation, meanwhile gas chromatography-mass spectrometry (GC-MS) and antibacterial & insecticidal activity were conducted. The GC-MS showed that compared with direct steam distillation extraction, in solvent extraction-steam distillation extraction the relative content of aldehyde compounds which has lower odor threshold is 0.20%, meanwhile the relative content of carboxylic acid and ester is 21.54% in solvent extraction-steam and distillation extraction. The antibacterial activity of volatile oil on 5 kinds of pathogens (Escherichia coli O157, Staphylococcus aureus, Salmonella enterica, Listeria monocytogenes, Vibrio parahemolyticus) is moderate, and the median lethal dose LD50 of volatile oil compounds in G. Lemaneiformis with solvent extraction-steam distillation and direct steam distillation broth were 0.126 and 0.162 mg/mL respectively.
Bibliographic Details
https://www.ifoodmm.cn/journal/vol34/iss2/32; https://www.ifoodmm.cn/cgi/viewcontent.cgi?article=2884&context=journal; http://dx.doi.org/10.13652/j.issn.1003-5788.2018.02.032; https://dx.doi.org/10.13652/j.issn.1003-5788.2018.02.032; https://www.chndoi.org/Resolution/Handler?doi=10.13652/j.issn.1003-5788.2018.02.032
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