The anti-leech potential of the solvent extract of Bornean neem leaves and ultra-high performance liquid chromatography-high-resolution mass spectrometry profiling

Muhammad Dawood Shah and Balu Alagar Venmathi Maran and Jen, Kit Tan and Yoong, Soon Yong and Ching Fui Fui @ Faihana Ching Abdullah and Sitti Raehanah Muhamad Shaleh and Rossita Shapawi (2021) The anti-leech potential of the solvent extract of Bornean neem leaves and ultra-high performance liquid chromatography-high-resolution mass spectrometry profiling. Journal of King Saud University - Science, 33. pp. 1-7. ISSN 1018-3647

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Abstract

Aquaculture plays a vital role in the Malaysian economy and food production however, sometimes the development is impeded by parasites. The parasitic leech Zeylanicobdella arugamensis (Hirudinea) infest the sea bass, snappers and groupers. They feed on the blood and cause secondary infection which could cause host death in a short time. In this study, the leaves of the neem plant (Azadirachta indica) (Meliaceae) have been selected as a natural product for the elimination of the parasitic leeches Z. arugamensis and to evaluate the phytochemical composition via ultra-high performance liquid chromatography–high-resolution mass spectrometry system (UHPLC-HRMS). The parasitic leeches were collected from Universiti Malaysia Sabah aquaculture facilities and challenged with various concentration of neem leaves methanol extract. The results revealed significant anti leech activity of the methanol extract against Z. Arugamensis with total mortality at the concentration of 25, 50 and 100 mg/ml in an average period of 35.81 ± 5.40, 14.18 ± 0.99 and 9.21 ± 1.51 min, respectively. The analysis of UHPLC-HRMS showed the existence of isorhamnetin, myricetin, myricetin 3-O-galactoside, trifolin, and quercetin(flavonoids), 2-(3,4-dihydroxyphenyl) acetamide, apocynin, p-coumaric acid, scopoletin, and, phloretin(phenolics), pulegone, and carvone (terpenoids). Thus, the research showed that methanol extract of neem leaves contained effective bioactive compounds with anti-leech effects. This study will be very helpful to fish farmers in Malaysia and other Southeast Asian countries to control the parasitic leeches in aquaculture using a natural product.

Item Type: Article
Uncontrolled Keywords: Aquaculture , Malaysia , Hybrid groupers , Neem , Antiparasitic activity , Zeylanicobdella arugamensis , Ultra-high-performance liquid chromatography – high-resolution massspectrometry analysis , Bioactive compounds
Subjects: S Agriculture > SH Aquaculture. Fisheries. Angling > SH1-691 Aquaculture. Fisheries. Angling > SH20.3-191 Aquaculture > SH151-179 Fish culture > SH171-179 Diseases and adverse factors
Divisions: INSTITUTE > Borneo Marine Research Institute
Depositing User: SAFRUDIN BIN DARUN -
Date Deposited: 22 Oct 2021 10:47
Last Modified: 22 Oct 2021 10:47
URI: http://eprints.ums.edu.my/id/eprint/30566

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