Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah

The aim of this study is to identify the phytochemical screening and insecticidal effect of D. crumenatum on L. niger. The two different types of extract stems of D. crumenatum were screened for secondary metabolite constituents and insecticidal effect on L. niger (black ant). The stem sample wer...

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Main Author:	Hamzah, Nur Hafizah
Format:	Student Project
Language:	English
Published:	Faculty of Applied Sciences 2017
Subjects:	Botanical chemistry. Phytochemicals
Online Access:	http://ir.uitm.edu.my/id/eprint/22979/ http://ir.uitm.edu.my/id/eprint/22979/1/PPb_NUR%20HAFIZAH%20HAMZAH%20AS%20C%2017_5.PDF

id	uitm-22979
recordtype	eprints
spelling	uitm-229792019-01-29T01:37:14Z http://ir.uitm.edu.my/id/eprint/22979/ Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah Hamzah, Nur Hafizah Botanical chemistry. Phytochemicals The aim of this study is to identify the phytochemical screening and insecticidal effect of D. crumenatum on L. niger. The two different types of extract stems of D. crumenatum were screened for secondary metabolite constituents and insecticidal effect on L. niger (black ant). The stem sample were extracts with different solvent, hexane and methanol. The percentage yield of crude extracts calculated found that methanol showed the highest percentage followed with hexane with 10.18% and 4.40% respectively. Phytochemical screening of the extracts revealed the presence of alkaloids, saponins, tannin and terpenoids in the plants investigated. However, flavonoid absence in the hexane extract and methanol extract absence of flavonoid and tannin. The extracts stem of D. crumenatum of different concentrations were also investigated for their insecticidal effect on 1. niger. The concentration was used at 1.875 mg/l, 3.75 mg/l, 75 mg/l, 150 mg/l and 300 mg/l. Average mortality indicated that the extracts caused significant mortality on the target insects. The bioassay has indicated that the toxic effect of the extracts was proportional to the concentration and higher concentration has stronger effect. From the study, hexane extract stem of D. crumenatum could cause the highest significant mortality compared to methanol extract. The thin layer chromatography (TLC) analysis is used as confirmation of secondary metabolite found in the extracts stem of D. crumenatum. The TLC analysis revealed that hexane extract has the most number of compound present with 15 compounds and methanol extract with 12 compounds respectively. Thus, stem of D. crumenatum plant extract could be used as biopesticide against L. niger. Faculty of Applied Sciences 2017 Student Project NonPeerReviewed text en http://ir.uitm.edu.my/id/eprint/22979/1/PPb_NUR%20HAFIZAH%20HAMZAH%20AS%20C%2017_5.PDF Hamzah, Nur Hafizah (2017) Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah. [Student Project] (Unpublished)
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Teknologi MARA
building	UiTM Institutional Repository
collection	Online Access
language	English
topic	Botanical chemistry. Phytochemicals
spellingShingle	Botanical chemistry. Phytochemicals Hamzah, Nur Hafizah Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah
description	The aim of this study is to identify the phytochemical screening and insecticidal effect of D. crumenatum on L. niger. The two different types of extract stems of D. crumenatum were screened for secondary metabolite constituents and insecticidal effect on L. niger (black ant). The stem sample were extracts with different solvent, hexane and methanol. The percentage yield of crude extracts calculated found that methanol showed the highest percentage followed with hexane with 10.18% and 4.40% respectively. Phytochemical screening of the extracts revealed the presence of alkaloids, saponins, tannin and terpenoids in the plants investigated. However, flavonoid absence in the hexane extract and methanol extract absence of flavonoid and tannin. The extracts stem of D. crumenatum of different concentrations were also investigated for their insecticidal effect on 1. niger. The concentration was used at 1.875 mg/l, 3.75 mg/l, 75 mg/l, 150 mg/l and 300 mg/l. Average mortality indicated that the extracts caused significant mortality on the target insects. The bioassay has indicated that the toxic effect of the extracts was proportional to the concentration and higher concentration has stronger effect. From the study, hexane extract stem of D. crumenatum could cause the highest significant mortality compared to methanol extract. The thin layer chromatography (TLC) analysis is used as confirmation of secondary metabolite found in the extracts stem of D. crumenatum. The TLC analysis revealed that hexane extract has the most number of compound present with 15 compounds and methanol extract with 12 compounds respectively. Thus, stem of D. crumenatum plant extract could be used as biopesticide against L. niger.
format	Student Project
author	Hamzah, Nur Hafizah
author_facet	Hamzah, Nur Hafizah
author_sort	Hamzah, Nur Hafizah
title	Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah
title_short	Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah
title_full	Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah
title_fullStr	Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah
title_full_unstemmed	Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah
title_sort	phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / nur hafizah hamzah
publisher	Faculty of Applied Sciences
publishDate	2017
url	http://ir.uitm.edu.my/id/eprint/22979/ http://ir.uitm.edu.my/id/eprint/22979/1/PPb_NUR%20HAFIZAH%20HAMZAH%20AS%20C%2017_5.PDF
first_indexed	2023-09-18T23:09:49Z
last_indexed	2023-09-18T23:09:49Z
_version_	1777418727265927168

Phytochemical screening and insecticidal effect of dendrobium crumenatum on lasius niger (black ant) / Nur Hafizah Hamzah

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