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Jurnal Kimia Terapan Indonesia

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Published by Lembaga Ilmu Pengetahuan Indonesia

ISSN : 08532788 EISSN : 25277669 DOI : -

Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology

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Articles 6 Documents

Search results for , issue "Vol 13, No 1 (2011)" : 6 Documents clear

PENGEMBANGAN MATERIAL SERBUK SILIKA UNTUK IDENTIFIKASI SIDIK JAR! Christine Elishian; Rosi Ketrin
Jurnal Kimia Terapan Indonesia Vol 13, No 1 (2011)
Publisher : Research Center for Chemistry - LIPI

Development of powder material for fingerprint identification has become Indonesian Department of Safety and Defense priority, especially it was written in the National Research Agenda 2006 -2009. Until now Indonesia still imported thepowder from United States and Japan. Powder fineness is one of the important factors, because finer the powder, more easily it stick to the latent fingerprint and better visualization result will be obtained. In this research, nanosilica was fabricated by used TEOS (tetraethoxysilane) as precursor. Nanosilica is an adhesive material in fingerprint powder while carbon is a coloring agent. In this research nanosilica and carbon black composition was optimized, and the powders were characterized and tried in order to get afingerprint powder which have a better quality to be used by National Police and therefore it can support Indonesian autonomy in safety and defense.Key words: Fingerprint identifier material, nanosilika, TEOS, carbon black

PROSES STERILISASI SARI BUAH TERONG UNGU (Solanum melongena) DENGAN SISTEM OZONISASI Suharyono A. S.; Udin Hasanudin; M. Kurniadi
Jurnal Kimia Terapan Indonesia Vol 13, No 1 (2011)
Publisher : Research Center for Chemistry - LIPI

One effort in the preservation of food is processed through a sterilization process using ozonization system with ozone molecule (0). The purpose of this study is to review the process of sterilization of juice eggplant (Solanum melongena) using ozonation systems with a concentration of 0.6 ppm ozone. In this study, eggplant juice made in 6 ratio of water: sugar(1:10%, 1:15%, 1:20%, 2:10%, 2:15%, 2:20%) and sterilize with 0.6 ppm ozone The ozonation time studiedfor (0. 6ppm) 0 min, 2 min, 4 minutes, 6 minutes, 8 min and long storage 0 days, 2 days, 4 days, 6 day. Test parameters obtained included the juice organoleptic test (preference level) and test of vitamin C. The results showed that ozonation can be used as a process of sterilization of juice eggplant, ozonation time with optimal and durable power offruit quality is 4minutes with long storage for 2 days. Response panelists on organoleptic test as a whole eggplant juice between 2.8 (preferred), and 3.13 (preferred). Levels of vitam in C, protein, carbohydrate and total microbial best eggplant juice are 1.35 mg1100mL, 1.1%, 3.43 mg1100mL, 8.36x1 rI cfulmL, respectively.Key words: Eggplant, ozonization, ozone,sterilization.

UJI BANDING METODA PELINDIAN LOGAM KROM CARAROTARY AGITATOR DENGAN ULTRASONIC CLEANER MENGGUNAKAN BAHAN ACUAN TANAH BERSERTIFlKAT Ardeniswan Ardeniswan
Jurnal Kimia Terapan Indonesia Vol 13, No 1 (2011)
Publisher : Research Center for Chemistry - LIPI

A comparative test of leaching procedure of the metal chromium (Cr) were conducted between Rotary Agitator and Ultrasonic Cleaner by using certified soil reference materials (CRM) lot number 118 097 APG having a true value of total chromium concentration of 16.7 ± 0.333 mg/L which is used as an material comparison. The result shown that a average concentration result of chromium leached test using Rotary Agitator is 14,18 ± 0,3407 mg/L, and gave recovery 94,92 %. A while the average concentration result of chromium leached test using Ultrasonic Cleaner is 13,64 ± 0,118 mg/L,and gave recovery 91,68 %. Comparison study between Rotary Agitator and Ultrasonic Cleaner equipments didn't shows any significant difference,where tcomputed< ttabularwhich indicates the null hypothesis (HJ is accepted with value a 95 %.Keyword: Certified Reference Material, leached test, Rotary Agitator, ultrasonic Cleaner

PENGARUH TEKNIK SINTESIS TERHADAP KUALITAS PRODUK FATTYAMINA SEKUNDER Komar Sutriah; Zainal Alim Mas'ud; Tun Tedja Irawadi
Jurnal Kimia Terapan Indonesia Vol 13, No 1 (2011)
Publisher : Research Center for Chemistry - LIPI

Secondary fattyamines has been synthesized by reacting primary fatty amines with acylchlorides and continued with reducing the corresponding secondary fattyamides formed to secondary fattyamines using LiAIH<I'Fatty amines are raw material of natural-based surfactants that can be derived from fatty acids, olefins, or alcohols, of which can be synthesized from natural sources such as palm oil. Conversion of secondary fatty amides to secondary fatty amines was evaluated through the quality of FTIR spectra on wave number of 1639-1645 em' (C=O vibration) and 1544-1555 em" (vibrations of C-H and of secondary amine N-H). Method of synthesis by using closed reflux syncore reactor was better than those of using microwave teflon tubes, and open reflux. The yield of 9 different secondary fatty amines obtainedfrom 5 to 27 replicates by the closed reflux syncore reactor method varied from 17%to 96%.Keywords: Natural-based surfactant, secondary fatty amines

UJI AKTIVITAS ANTIOKSIDAN EKSTRAK KASARAIR BUNGA KECOMBRANG (Etlingera elatior) SEBAGAI BAHAN PANGAN FUNGSIONAL Dede Sukandar; Nani Radiastutu; Ira Jayanegara; Anna Muawanah; Adeng Hudaya
Jurnal Kimia Terapan Indonesia Vol 13, No 1 (2011)
Publisher : Research Center for Chemistry - LIPI

A research of antioksidant activity from water crude extract of kecombrang flower (Etlingera elatior) have been reported. This Research aim to give erudite evidence of kecombrang flower as a functional food. Antioksidant was examined by activity diphenyl picryl hidrazyl ( DPPH) methode and chemicalcomponent analyses using GCMS. Water crude extract of kecombrang flower shows antioxidan activity ( ICso = 61. 6497 ppm) and waspredicted to have component of l-dodekanol, S-metil-l-oxo-lbuten 1-(21,41, 51-trihidroxyl phenil} and 1tetradecene (tR= 13,26, area=6,03, similarity at 98%).Keyword: Kecombrang ( Etlingera elatior), functional food, antioxidant

ANTICANCER ACTIVITIES OF SECONDARY METABOLITES PRODUCED BY TAXUS ENDOPHYTIC FUNGUS PHOMOPSIS CHIMONANTHI A. Desak Gede Sri; J. p. Raymond; Harmastmi Harmastini; L.B. S. Kardono,; M. Hanafi; E. Meiyanto
Jurnal Kimia Terapan Indonesia Vol 13, No 1 (2011)
Publisher : Research Center for Chemistry - LIPI

Secondary metabolite by the Taxus endophytic fungus strain Tse3 culture obtained from the West Java Forest has been produced. Production of secondary metabolite had done by aerobic fermentation for 7 days, 3(fC, 120 rpm in PDB (potato dextrose broth) media. The broth of fermentation was extracted by ethyl acetate. Various concentrations of the ethyl acetate extract in (0- 800) mcg/mL were prepared and test against T47D cancer cell line. Cytotoxic test has be done by MTTmethod. ICso value of ethyl acetate extract was 3 mcg/mL. The result of fungus identification by morphology and molecular 18S rRNA was Phomopsis chimonanthi.Key words: Phomopsis chimonanthi, fermentation, isolation, cytotoxicity, identification, taxus

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