Article Per Year (5 Year)
p-Index From 2020 - 2025
0
P-Index
This Author published in this journals
All Journal ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry Molekul: Jurnal Ilmiah Kimia
Desi Suci Handayani
Jurusan Kimia, FMIPA, Universitas Sebelas Maret
Chemical Engineering, Chemistry & Bioengineering Chemistry Energy Environmental Science Materials Science & Nanotechnology

Published : 4 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 4 Documents
Search

 1 
IDENTIFIKASI DAN UJI AKTIVITAS ANTIBAKTERI FRAKSI TERAKTIF DAUN PACAR KUKU (Lawsonia inermis Linn.) TERHADAP Staphylococcus aureus DAN Escherischia coli Nestri Handayani; Aprilia Fitriana; Desi Suci Handayani
Molekul Vol 8, No 2 (2013)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (439.542 KB) | DOI: 10.20884/1.jm.2013.8.2.139

Abstract

Telah dilakukan uji aktivitas antibakteri fraksi teraktif daun pacar kuku (Lawsonia inermis Linn.) terhadap bakteriStaphylococcus aureusdan  Escherichia coli. Fraksi teraktif diperoleh dari hasil pemisahan kromatografi vacum cair (KVC) ekstrak etanol daun pacar kuku (Lawsonia inermis Linn.) yang telah melalui tahap maserasi dengan pelarut etanol 70%. Proses KVC dilakukan dengan  menggunakan tiga eluen yaitu n-heksan, etil asetat, dan etanol. Pengujian aktivitas antibakteri dilakukan dengan metode difusi agar. Komponen kimia dalam fraksi teraktif diidentifikasi melalui skrining fitokimia dengan metode kromatografi lapis tipis (KLT) dan kromatografi gas-spektrometer massa (GC-MS).Uji aktivitas antibakteri menunjukkan bahwa ekstrak etanol dan fraksi-fraksi daun pacar kuku (Lawsonia inermis Linn.) mampu menghambat pertumbuhan bakteri Staphylococcus aureus danEscherichia coli. Fraksi etil asetat adalah fraksi teraktif anti bakteri.Identifikasi senyawa dalam fraksi teraktif melalui kromatografi lapis tipis (KLT) menunjukkan adanya golongan senyawa flavonoid, terpenoid, antrakuinon, saponin, dan asam lemak. Analisis GC-MS menunjukkan adanya senyawa dominan 2-pentanone,4-hydroxy-4 methy, coumarin, hexadecanoic acid, methyl ester, dan 10-octadecanoic acid.
Biosynthesis of Biosurfactant by Pseudomonas aeruginosa Using Cassava Flour Industrial Wastewater as Media Venty Suryanti; Sri Hastuti; Desi Suci Handayani
ALCHEMY Jurnal Penelitian Kimia Vol 10, No 1 (2014): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.10.1.12.22-30

Abstract

Biosynthesis of biosurfactant by Pseudomonas aeruginosa have been prepared using cassava flour industrial wastewater (manipueira) as medium. The optimum condition of the biosurfactans biosynthesis was obtained using media containing nutrient broth and manipueira without centrifugation (NBM) with 4 days fermentation. UV-Vis and FT-IR spectra indicated that the biosurfactant was a rhamnolipid containing hydroxyl, ester, carbocylic and aliphatic carbon chain functional groups. Biosurfactant exhibited critical micelle concentration (CMC) value of 576  mg/L and surface tension value of 0.045  N/m. The biosurfactant was able to decrease the interface tension and form emulsion with benzene, toluene, gasoline and palm oil. This biosurfactant showed w/o emulsion system.
Synthesis and Characterization Of C-Hexyl Calix[4]Resorcinarena from Resorcinol-Heptanal Condensation Desi Suci Handayani; Zainal Arifin Almaqqomul Amin; Triana Kusumaningsih; Abu Masykur
ALCHEMY Jurnal Penelitian Kimia Vol 10, No 1 (2014): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.10.1.730.49-53

Abstract

Synthesis of  C-hexyl  calix[4]resorcinarene  through condensation reaction between resorcinol  and  heptanal  with  HCl  catalyst  has  been  investigated.  Synthesis  conducted  by the ratio of resorcinol: heptanal (1:1) using reflux for 6 hours in ethanol. Structural  analysis of  the  product  was  done  by  FTIR  and 1 H-NMR  spectroscopy,  while  the  characterization was  done  by  determining  melting  point.  The  product  was  golden  brown  powder  with  a yield 99.43%  and  melting point more than 300 °C.  Structural analysis with FTIR and 1 HNMR  known  vibration  and  signals  characteristic  of  calix[4]resorcinarena  group, the vibrations of the CH  bridge. Vibration of CH bridge appearance at wave number 1445 cm-1 and 1456  cm-1, while signal of CH bridge appearance at chemical shifts from  4.17 to 4.21 ppm.
SYNTHESIS OF POLY-5,7-DIALLYL-25,26,27,28-TETRAHYDROXYCALIX[4]ARENE Desi Suci Handayani; Jumina Jumina; Maulidan Firdaus; Triana Kusumaningsih
Indonesian Journal of Chemistry Vol 10, No 1 (2010)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (333.457 KB) | DOI: 10.22146/ijc.21492

Abstract

The synthesis of poly-5,7-diallyl-25,26,27,28-tetrahydroxycalix[4]arene were performed in experimental series as follows: (1) Cyclotetramerization of p-t-butylphenol with NaOH and paraformaldehyde to p-butylcalix[4]arene, (2) Debutylation of p-butylcalix[4]arene using AlCl3 and phenol to tetrahydroxycalix[4]arene, (3) Allylation reaction using allylbromide to diallyloxy-dihydroxycalix[4]arene, (4) Claisen rearrangement reaction, (5) Cationic polymerization to diallylcalix[4]arenes. All of the synthesized products were analyzed by means of IR spectrometer and 1H-NMR spectrometer. The result of 25,27-diallyloxy-26,28-dihydroxycalix[4]arene synthesis was white crystals having m.p. 205-207 °C in 80.95% yield. The synthesis of 5,7-diallyl-25,26,27,28-tetrahydroxy-calix[4]arene gave light yellow crystals having m.p. 214-216 °C in 78.67% yield. The polymerization gave poly(5,7-diallyl-25,26,27,28-tetra-hydroxycalix[4]arene) having m.p. 338-340 °C, in 60% yield. Its estimated has a relative molecular weight of 18,738 g/mol with the number of unit repetition about 37 monomer units.
Co-Authors Abu Masykur Aprilia Fitriana Jumina Jumina Maulidan Firdaus Nestri Handayani Sri Hastuti Triana Kusumaningsih Triana Kusumaningsih Venty Suryanti Zainal Arifin Almaqqomul Amin