Nukmal, Nismah and Pasutri, Agata Yelin and Pratami, Gina (2019) Characterization of Flavonoid Compounds from Polar Leaf Gamal Cultivar ExtractNorth Lampung and Test its Activity Against Cocoa White Mites(Planococcus minor, Hemiptera: Pseudococcidae). Bioma : Berkala Ilmiah Biologi, 21 (1). pp. 25-34. ISSN 1410-8801

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Cocoa is one of the export commodities that have great prospects. The quality of cocoa in Indonesia are notsatisfactory, this is caused by cocoa mealybug (Planococcus minor).Gamal (Gliricidia maculata) contains flavonoidcompounds which can be used as bioinsecticides. The aims of research to determine the characteristic of flavonoidcompounds in gamal leaf powder which is effective for kill of cocoa mealybugP. minor. Extraction and spectroscopyanalysis (UV-Vis and FTIR) were done in the Integrated Laboratory of Technology Innovation Center (ILTIC) andthe bioassay was done at Zoology Laboratory of Unila. The results shows that the crude water extract of gamal leafpowder North Lampung Cultivar (NLC) more effective killedlowerthan purified water extract. It was indicated byvalue of LC50.72hoursthe crude water extract than purified water extract (0.11%: 0.27%). The flavonoid compounds ofgamal leaf powderNLChave the characteristics of blue fluorescence in UV light λ 254 and 366 nm. The flavonoidwith the maximum peak of wavelength 310 could be grouped to flavonone with structural frame O-H, C=O carbonyl,aromatic C=C, and C-O.Key Words:Cocoa ;Planococcus minor ;flavonoids;gamal leaves.

Item Type: Article
Subjects: Q Science > Q Science (General)
Divisions: Fakultas Matematika dan Ilmu Pengetahuan Alam (FMIPA) > Prodi Biologi
Depositing User: Ph.D Nismah Nukmal
Date Deposited: 01 Dec 2020 01:02
Last Modified: 01 Dec 2020 01:02

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