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All Journal Natural B The Journal of Pure and Applied Chemistry Research
Rurini Retnowati
Brawijaya University
Chemical Engineering, Chemistry & Bioengineering Chemistry Environmental Science Materials Science & Nanotechnology Medicine & Pharmacology

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The derivatization of α-Pinena: Synthesis of Organonitrogen Compounds and Study of Its Potential as a Drug Candidate Mohammad Farid Rahman; Rurini Retnowati; Suratmo Suratmo
Natural B, Journal of Health and Environmental Sciences Vol 1, No 1 (2011)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (68.068 KB) | DOI: 10.21776/ub.natural-b.2011.001.01.10

Abstract

a-Pinene is the major compound in oil of turpentine that can be developed as the- starting material to synthesize compounds that have potential as organonitrogen ingredients through biological and physiological properties. Changes a-pinene into organonitrogen compounds can be carried out via addition reactions to the alkene group through Ritter reaction using acetonitrile or benzonitrile reagent. Carbocation rearrangement that occurs in reaction to direct the reaction products varies. a-Pinene reaction with acetonitrile to produce the compounds N-[1-Methyl-1-(4-methyl-cyclohex-3-enyl)-ethyl]-acetamide, N-(1,5-Dimethyl-1-vinyl-hex-4-enyl)-acetamide and N-(2,6,6-trimethyl-bicyclo[3.1.1] hept-2-yl)-acetamide. While a-pinene reactions with benzonitrile to produce the compounds of N-(1,5-Dimethyl-1-vinyl-hex-4-enyl)-benzamide and N-[1-Methyl-1-(4-methyl-cyclohex-3-enyl)-ethyl]-benzamide. Reaction products with ingredients benzonitrile (LC50 = 203.86 ppm) has a higher toxicity than acetonitrile-based reaction product (LC50 = 504.80 ppm) based on the test Brine Shrimp Lethality Test (BSLT).
Method of Reducing Air Pollution from Motor Vehicles Unggul Punjung Juswono; Siti Jazimah Iswarin; Achmad F.D Romly; Rurini Retnowati
Natural B, Journal of Health and Environmental Sciences Vol 1, No 2 (2011)
Publisher : Natural B, Journal of Health and Environmental Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9.077 KB) | DOI: 10.21776/ub.natural-b.2011.001.02.8

Abstract

Increasing of air pollutions which are occurred in Indonesia is running together with the increase of motor vehicle populations. The old motor vehicles contribute to the increase of air pollution significantly due to the imperfectly burning process in their machine. Air pollution is seriously threat human being not only disturb human health but also cause greenhouse effect and global warming. It needs do some research to decrease air pollution caused by motor vehicle to get a better environment. The research has been done by filtration of disposal gas from motor vehicles using water, lubricant and carbonic acid as a filter. The disposal gas from a motor vehicle was flowed throw bottles contain of water, lubricant and carbonic acid. The result showed that water filter can decrease the disposal gas CO and CO2. Oil filter significantly decreased HC gas and carbonic acid filter could be used to decrease Pb.
Characterization of the Curcuminoids Fingerprint Profile in Curcuma and Zingiber Genera by TLC – Digital Image Analysis Anisa Lailatusy Syarifah; Rurini Retnowati; Hermin Sulistyarti
The Journal of Pure and Applied Chemistry Research Vol 8, No 2 (2019): Edition May-August 2019
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2019.008.02.462

Abstract

Curcuma longa, C. xanthorrhiza, C. heyneana, and Zingiber cassumunar contain high curcuminoid and have relatively the similar yellow color. Therefore, that they are potentially adulterated and difficult to differentiate in the form of powder. Hence, it is necessary to characterize the fingerprints compound profile by a simple and rapid method. This research aims to determine fingerprint compound profile of curcuminoid using Thin Layer Chromatography (TLC) and digital image analysis. The result of the research identified that the fingerprint compound profile of curcuminoid on the four rhizomes was obtained by TLC method using silica gel 60 GF254 as the stationary phase, chloroform:dichloromethane:methanol (13:6:1) as the mobile phase, and observation under UV 254 nm light and citroborate reagent. Thereafter, the digital image analysis was carried out using Image J software according to the gray value and % of RGB (red-green-blue) value. Based on gray value and % of RGB, both Curcuma and Zingiber genera were differentiated through curcumin compound (Rf 0.63), demethoxycurcumin (Rf 0.34), bisdemethoxycurcumin (Rf 0.21). The profile of fingerprint compound on Curcuma longa, C. xanthorrhiza, C. heyneana, and Zingiber cassumunar was differentiated through Rf 0.26; Rf 0.17; and Rf 0.10. 
Co-Authors Achmad F.D Romly Hermin Sulistyarti Mohammad Farid Rahman Siti Jazimah Iswarin Suratmo Suratmo Syarifah, Anisa Lailatusy Unggul Punjung Juswono