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All Journal EKSAKTA: Journal of Sciences and Data Analysis IJCER (International Journal of Chemistry Education Research) Jurnal Sains dan Edukasi Sains
Lina Fauzi'ah
Department Of Chemistry Education, Islamic University Of Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Environmental Science Materials Science & Nanotechnology Mathematics Physics Other

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 1 
Synthesis of Chalcones Substituted with Nitro and Hydroxyl Group in Alkaline Medium Lina Fauzi'ah; Tutik Dwi Wahyuningsih
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 16, ISSUE 2, August 2016
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol16.iss2.art5

Abstract

Telah dilakukan sintesis turunan senyawa kalkon tersubstitusi gugus nitro dan hidroksi melalui reaksi kondensasi Claisen Schmidt. Tujuan penelitian ini adalah untuk mensintesis senyawa kalkon yang tersubstitusi gugus hirdoksi dan nitro dalam medium basa, dan mempelajari pengaruh gugus tersebut dalam reaksi kondendasi. Kalkon 1 disintesis dari 4-nitroasetofenon dan vanilin menggunakan katalis NaOH 60% (b/v dalam akuades) melalui pengadukan selama 24 jam. Kalkon 2 didapatkan dari reaksi antara 4-nitroasetofenon dan veratraldehida dengan katalis NaOH 15% selama 4 jam, sedangkan kalkon 3 disintesis dari 4-nitroasetofenon dan 6-nitroveratraldehida dalam 5% NaOH 10 tetes. Produk hasil sintesis dikarakterisasi dengan FTIR, GC-MS dan 1H-NMR.Hasil penelitian menunjukkan bahwa senyawa kalkon telah berhasil disintesis dengan rendemen berturut-turut sebesar 16,80; 75,83; dan 44,11 % dalam medium basa. Dari penelitian ini, dapat disimpulkan bahwa adanya gugus hidroksi dari sumber aldehida aromatik pada kalkon 1 menghambat terjadinya reaksi, sedangkan gugus nitro yang terikat pada aldehida aromatik menjadi kendala pada reaksi kalkon 3 karena sifatnya yang sensitif terhadap cahaya.
Extraction of Papaya Leaves (Carica papaya L.) Using Ultrasonic Cleaner Lina Fauziah; Miladiatul Wakidah
EKSAKTA: Journal of Sciences and Data Analysis VOLUME 19, ISSUE 1, February 2019
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/eksakta.vol19.iss1.art4

Abstract

Extraction of papaya leaves (Carica papaya L.) using Ultrasonic Cleaner has been performed. Papaya leaves were extracted for 6 hours in a methanol as solvent. The results of phytochemical screening showed that methanol extract contained secondary metabolites of flavonoids, alkaloids, tepenoid, saponin, and phenolic classes. Methanol extract was then partitioned liquid-liquid with n-hexane. Quantitative analysis of partitioning of n-hexane using papaya leaves using Gas Chromatography-Mass Spectrometry (GC-MS) showed the presence of neophytadiene (1.59%), palmitic acid (1.35%) and methyl linolenate (3.33%). The results showed that Ultrasonic Cleaner can be used to ultrasonic-assisted extraction of natural products especially for papaya leaves.
Komposisi Kimia Penyusun Minyak Atsiri Daun Insulin (Tithonia diversifolia (Hamsley) A.Gray) dari Kalimantan Selatan Lina Fauzi'ah; Siti Nadiya Hajati
Jurnal Sains dan Edukasi Sains Vol 3 No 2 (2020): Jurnal Sains dan Edukasi Sains
Publisher : Faculty of Science and Mathematics, Universitas Kristen Satya Wacana, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24246/juses.v3i2p32-37

Abstract

Daun Insulin (Tithonia diversifolia) merupakan salah satu tanaman obat tradisional yang digunakan masyarakat Kalimantan Selatan untuk mengatasi glikemia. Analisis komposisi Kimia penyusun minyak atsiri dari daun Insulin yang berasal dari Kalimantan Selatan belum dilakukan. Oleh karena itu, penelitian ini bertujuan untuk menentukan komponen kimia penyusun minyak atsiri Daun Insulin (T. diversifolia) untuk melengkapi data dasar daun Insulin yang diperoleh dari Kalimantan Selatan. Sampel daun Insulin diperoleh tumbuh liar dari Desa Hulu Pasar, Kabupaten Hulu Sungai Utara Kalimantan Selatan, Indonesia. Sebelum didistilasi, daun dikeringanginkan kemudian dikeringkan dengan oven pada suhu 50 ᵒC selama 30 menit. Metode distilasi rebus digunakan untuk mendapatkan minyak atsiri daun Insulin. Sampel didistilasi selama 48 jam sehingga diperoleh minyak bening berwarna kekuningan dengan rendemen minyak 0,02% (b/b). Minyak hasil distilasi selanjutnya dianalisis dengan Kromatografi Gas-Spektra Masa (KG-SM). Hasil kromatogram minyak atsiri daun Insulin menunjukkan adanya 6 puncak yang teridentifikasi melalui spektra massa merupakan senyawa limonen (32,14%), β pinen (24,88%), α pinen (21,73%), trans kariofilen (11,68%), bisiklogermakren (5,24%), dan β felandren (4,33%). Komponen kimia penyusun minyak atsiri daun Insulin termasuk dalam golongan monoterpena dan seskuiterpena hidrokarbon.
Group Resume Learning through Drama in Instructional Technology Course Artina Diniaty; Lina Fauzi'ah
IJCER (International Journal of Chemistry Education Research) VOLUME 1 ISSUE 1, AUGUST 2017
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol1.iss1.art2

Abstract

ABSTRACT: The implementation of group resume learning through drama in instructional technology subjects aimed to create a pleasant atmosphere and improve student creativity in learning so as to facilitate them in understanding the material being studied. The implementation of the research was conducted in four stages: plan, implementation, observation, and evaluation. The results showed that 1) the assessment of drama on group resume learning through drama in instructional technology course is very good, and 2) student response to group resume learning through drama in instructional technology course is very good.Keywords: group resume, drama, instructional technologyReceived: 10 June 2017, Revised: 5 August 2017, Accepted: 1 September 2017
Implementation of Learning Assistance to Chemistry Learning Motivation of Students in MAN 4 Sleman Artina Diniaty; Lina Fauzi'ah
International Journal of Chemistry Education Research VOLUME 3 ISSUE 1, FEBRUARY 2019
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijcer.vol3.iss1.art8

Abstract

This study aims to determine the implementation of chemical learning assistance to students' learning motivation. Assistance efforts are carried out by managing the laboratory so that it can be used as a chemistry learning infrastructure, implementation, and discussion of tryout questions of SBMPTN along with the tricks to do them. In addition, chemedutainment is also carried out to motivate students to learn chemistry. The results showed that there were no significant differences in students' learning motivation through the implementation of chemical learning assistance. The implementation of chemical learning assistance needs to be carried out regularly and continuously in order to increase students' learning motivation.
Co-Authors Artina Diniaty Miladiatul Wakidah Siti Nadiya Hajati Tutik Dwi Wahyuningsih