Article Per Year (5 Year)
p-Index From 2020 - 2025
1.452
P-Index
This Author published in this journals
All Journal The Journal of Pure and Applied Chemistry Research Alchemy Jurnal Penelitian Kimia Science and Technology Indonesia Molekul: Jurnal Ilmiah Kimia Molekul: Jurnal Ilmiah Kimia Journal of Global Research in Public Health
Venty Suryanti
Department of Chemistry, Faculty of Mathematic and Natural Sciences, Sebelas Maret University Jl. Ir. Sutami 36A, Surakarta, Central Java 57126
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Dentistry Energy Environmental Science Health Professions Materials Science & Nanotechnology Medicine & Pharmacology Nursing Physics Public Health

Published : 12 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 12 Documents
Search

 1   2 
AMENTOFLAVONE FROM LEAVES OF NYAMPLUNG (Calophyllum inophyllum Linn.) Wartono, M. Widyo; Wulandari, Dian; Handayani, Nestri; Suryanti, Venty; Marliyana, Soerya D.
Alchemy Jurnal Penelitian Kimia Vol 8, No 1 (2012)
Publisher : Alchemy Jurnal Penelitian Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Amentoflavone (1), a biflavonoid was isolated from leaves of Calophyllum inophyllum Linn. Isolation and purification of the compound used maceration and chromatography methods using Si-gell and sephadex LH-20. The structure was determined by UV, IR, 1H and 13C NMR spectroscopy includes HMQC/HMBC analysis and comparison with references.
AMENTOFLAVON DARI DAUN NYAMPLUNG (Calophyllum inophyllum Linn.) Wartono, M. Widyo; Wulandari, Dian; Handayani, Nestri; Suryanti, Venty; Marliyana, Soerya D.
Alchemy Jurnal Penelitian Kimia Vol 8, No 2 (2012)
Publisher : Alchemy Jurnal Penelitian Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Satu senyawa biflavonoid yaitu amentoflavon (1) berhasil diisolasi dari daun tumbuhan nyamplung (Calophyllum inophyllum Linn). Ekstraksi menggunakan metode maserasi dan pemurnian dengan kromatografi kolom dengan fasa diam Si-gel dan sephadex LH-20. Elusidasi struktur menggunakan metode spektroskopi UV, IR, 1H dan 13 C NMR beserta HMQC dan HMBC. Hasil yang diperoleh dianalisis dan dibandingkan dengan data referensi.Kata kunci: Amentoflavon, biflavonoid, Calophyllum inophyllum, Daun
BIOSYNTHESIS OF BIOSURFACTANT BY PSEUDOMONAS AERUGINOSA USING CASSAVA FLOUR INDUSTRIAL WASTEWATER AS MEDIA Suryanti, Venty; Hastuti, Sri; Handayani, Desi Suci; Windrawati, Windrawati
Alchemy Jurnal Penelitian Kimia Vol 10, No 1 (2014)
Publisher : Alchemy Jurnal Penelitian Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar

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.
KOMPONEN KIMIA BUAH PARE BELUT (Trichosanthes anguina L.) Suryanti, Venty; Marliana, Soerya Dewi; Kristinawati, Dwik
Alchemy Jurnal Penelitian Kimia Vol 4, No 2 (2005)
Publisher : Alchemy Jurnal Penelitian Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Pare belut (Trichosanthes anguina L.) telah banyak digunakan dalam berbagai pengobatan tradisional, namun pengetahuan tentang kandungan kimia buah pare belut masih sedikit. Identifikasi komponen kimia pare belut dalam ekstrak etanol telah dilakukan. Komponen non polar dipisahkan dengan metode ekstraksi sokshlet selama 6 jam menggunakan pelarut petroleum eter. Residu hasil ekstraksi soxhlet selanjutnya diekstraksi dengan metode maserasi selama 24 jam menggunakan pelarut etanol untuk memisahkan komponen kimia selain non polar. Komponen pare belut dalam ekstrak etanol diidentifikasi dengan penapisan fitokimia, uji penegasan dengan kromatografi lapis tipis dan analisis kromatografi gas. Kemudian dilakukan pemisahan dengan kromatografi kolom menggunakan silika gel 60 dan eluen n-heksana, campuran n-heksana dengan etanol, dan etanol. Komponen-komponen yang telah terisolasi diidentifikasi dengan kromatografi gas-spektrometer massa (gas chromatography-mass spectrometer, GC-MS).Penapisan fitokimia menunjukkan bahwa ekstrak etanol pare belut mengandung alkaloid, tanin dan polifenol, saponin, kardenolin/bufadienol dan flavonoid dalam ekstrak etanol pare belut.Hasil identifikasi dengan instrumen GC-MS menunjukan 6 senyawa yang terdeteksi. Analisis spektra GC-MS menunjukkan senyawa-senyawa yang teridentifikasi adalah difenilsulfon, isopropil tridekanoat, di-n-oktillftalat, stigmasterol, dan ?-sitosterol. Senyawa stimasterol dan ?-sitosterol yang teridentifikasi berdasarkan kerangka dasar strukturnya diperkirakan merupakan senyawa golongan saponin yang ikatan glikosidanya lepas pada proses persiapan sampel dan identifikasi.
KARAKTERISASI KITOSAN HASIL DEASETILASI KITIN DARI CANGKANG KERANG HIJAU (Mytilus viridis linneaus). Kusumaningsih, Triana; Suryanti, Venty; Permana, Wisnu
Alchemy Jurnal Penelitian Kimia Vol 3, No 1 (2004)
Publisher : Alchemy Jurnal Penelitian Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Telah dilakukan karakterisasi kitosan hasil deasetilasi kitin cangkang kerang hijau (Mytilus viridis L). Penelitian ini bertujuan untuk menegtahui seberapa besar perolehan kitin hasil pemurnian cangkang hijau, dan perolehan kitosan hasil deasetilase kitin ,serta menentukan karakteristik kitosan yang dihasilkan.
PENGARUH ION NITRAT DAN NITRIT TERHADAP PHOTODEGRADASI ZAT WARNA TERKATALIS ZnO Hastuti, Sri; Suryanti, Venty
Alchemy Jurnal Penelitian Kimia Vol 2, No 2 (2003)
Publisher : Alchemy Jurnal Penelitian Kimia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Telah dilakukan penelitian untuk mempelajari pengaruh ion nitrat dan ion nitrit terhadap fotodegradasi zat warna terkatalis ZnO. Pada penelitian ini dilakukan terlebih dahulu penentuan panjang gelombang maksimum untuk zat warna Remazol Yellow. Selanjutnya perubahan asorbansi zat warna Remazol Yellow setelah penambahan ZnO,  ion nitrat dan nitrit diamati pada panjang gelombang maksimum (416 nm). Penurunan absorbansi menunjukkan adanya degradasi pada zat warna Remazol Yellow.Penambahan ZnO akan menurunkan absorbansi zat warna Remazol Yellow, begitu pula untuk penambahan ion nitrat semakin menurunkan absorbansi. Sebaliknya, penambahan ion nitrit justru akan menaikkan absorbansi, hingga pengaruh dari ZnO menjadi hilang.
Cation Sensing Capabilities of A Nitrophenyl Cinnamaldehyde Derivative Suryanti, Venty; Wibowo, Fajar Rakhman; Marzuki, Ahmad; Sari, Meiyanti Ratna Kumala
Molekul Vol 15, No 3 (2020)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (344.005 KB) | DOI: 10.20884/1.jm.2020.15.3.654

Abstract

The cationic chemosensor based on organic compound bearing an aminophenol moiety as a receptor for metal analyte and a cinnamaldehyde moiety as chromophoric fragment has been developed. In this work, we report the colorimetric sensing of nitrophenyl cinnamaldehyde derivative, namely methyl-3-(2-hidroxy-5-nitrophenyl amino)-3-phenylpropanoate, towards a variety of metal cations, such as Cu2+, Fe3+, Ni2+ and Zn2+. The cation sensing abilities of the sensor were observed for Cu2+and Fe3+ with a color change from colorless to pink and faint yellow, respectively, The characteristic UV-Vis spectra changes were observed upon addition of Cu2+and Fe3+ cations. The hypsochromic absorption spectra shifts were obtained, indicating the cations and sensor complexations had formed. A metal-to-ligand-charge-transfer (MLCT) had occurred and the charge density of the sensor changed resulting in appearance of new absorption peaks in the UV-Vis spectra and color changes of the sensor solution upon addition of the Cu2+and Fe3+.  
Bioactive Compound Contents and Antioxidant Activity of of Fermented Lead Tree (Leucaena leucocephala (lmk.) de Wit) Seeds Suryanti, Venty; Marliyana, Soerya Dewi; Rohana, Gracia Lasma; Trisnawati, Elyna Wahyu; Widiyanti, Widiyanti
Molekul Vol 16, No 3 (2021)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.768 KB) | DOI: 10.20884/1.jm.2021.16.3.756

Abstract

Leucaena leucocephala (lmk.) de Wit) (leed tree) seeds have been fermented by Indonesian as a traditional food which is called tempeh. The fermentation products of legume seeds are good functional foods, since they contain many bioactive compounds. The objective of this study was to determine the bioactive compound contents of fermented lead tree seed, such as total phenolic, ascorbic acid, β-carotene and a-tocopherol. Antioxidant activity testing was carried out using the thiobarbituric acid reactive substances (TBARS) method. Analysis of total phenolics, ascorbic acid, β-carotene and a-tocopherol were carried out using the folin-ciocalteu method, iodine titration, spectrophotometry and iron (III) chloride-thiocyanate, respectively. Rhizopus oligosporus was used to ferment lead tree seeds for 0, 1, 2, 3 and 4 days. Fermented leed tree seed powder was extracted with petroleum ether followed by ethanol. In comparison to unfermented leed tree seed powder, the β-carotene and a-tocopherol of the fermented seed powder increased. The greatest enhancement of β-carotene and a-tocopherol contents were observed at day 2 of fermentation. The highest antioxidant activities of fermented leed tree seeds were also obained at day 2 of fermentation with 55.55±4.59 and 74.46±3.49% inhibition in petroleum ether and ethanol extracts, respectively. The results show that lead tree seed tempeh has high antioxidant activity due to the bioactive compounds contains, such as  phenolics, β-carotene and a-tocopherol. Therefore, leed tree seed tempeh could be used for possible commercial production of functional food to alleviate oxidative stress.
Modification Structure of Cinnamaldehyde with Primary Amines by Reflux and Sonication Methods in the Presence of Sulfuric Acid as a Catalyst Setyono, Hilda Alfiyani; Suryanti, Venty; Putri, Alfianita Utama; Koketsu, Mamoru
Science and Technology Indonesia Vol. 9 No. 3 (2024): July
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2024.9.3.586-593

Abstract

Cinnamon is one of the most valuable natural resources that sustains life and exists freely in nature. Cinnamaldehyde is the primary compound in cinnamon oil. It has a unique structure that contains a benzene ring, an aldehyde group, and an unsaturated double bond. Cinnamaldehyde has been structurally modified to improve biological activity. In this research, cinnamaldehyde and nitrophenyl amines were reacted with sulfuric acid as a catalyst by refluxing and sonication. UV-Vis Spectroscopy, FT-IR, 1H-NMR, and 13C-NMR were used to validate the chemical structures. Thin-layer chromatography (TLC) revealed a new single spot formed by the reaction of cinnamaldehyde and 4-amino-2-nitrophenol. By refluxing for 2 hours or sonicating for 30 minutes, a novel imine chemical, 4-nitro-2-((3-phenylallylidene)amino)phenol, was effectively synthesized with a yield of 75.21% or 83.71%, respectively. This imine was obtained as a dark red powder with a melting point of 237 °C. Meanwhile, only sonication produced a novel product from the reaction of cinnamaldehyde and 4-nitroaniline. However, the structural elucidation has not yet been performed because the yield was so low. Surprisingly, there was no reaction between cinnamaldehyde and 2,4-dinitroaniline. It was most likely owing to the amine’s bulky structure and the presence of two nitro groups in the amine as electron-withdrawing groups that reduced the nucleophilicity of the amine. We demonstrated that sonication is a suitable approach for imine synthesis, as it is commonly utilized in organic compound synthesis protocols.
Synthesis and Characterization of Anethole-lauryl Methacrylate Copolymer via Cationic Polymerization Handayani, Desi Suci; Tahara, Alfia Uke; Firdaus, Maulidan; Suryanti, Venty; Kusumaningsih, Triana; Marliyana, Soerya Dewi; Wibowo, Fajar Rakhman; Wartono, Muhammad Widyo
Molekul Vol 18 No 3 (2023)
Publisher : Universitas Jenderal Soedirman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.jm.2023.18.3.7078

Abstract

The synthesis of anethole-lauryl methacrylate (LMA) copolymer had been carried out by cationic polymerization using BF3O(C2H5)2 as the initiator without the use of solvent at room temperature (28-30 °C) over atmospheric N2 conditions. Polymerization was conducted by varying LMA concentration i.e. 2%, 4%, and 6%, (w/w) with respect to the anethole weight. Structural determination of co-poly(anethole-LMA) was done using FTIR and 1H-NMR spectrophotometer. The relative molecular weight (Mv) of co-poly (anethole-LMA) was measured by an Ostwald Viscometer at room temperature. Morphological characterization and surface area analysis of co-poly(anethole-LMA) was performed using SEM and SAA, respectively. The successful synthesis of co-poly(anethole-LMA) was proven by the disappearance of vinyl group absorption at 1696, 1638, 965, and 938 cm-1 of the FTIR spectra, as well as the loss of vinyl group proton signals at 6.4-5.5 ppm in the 1H-NMR spectra. Increasing the weight of the LMA affected the characteristics of co-poly(anethole-LMA). The relative molecular weight of co-poly(anethole-LMA) was found to rise by increasing the weight of LMA. The Mv of co-poly(anethole-LMA) 2%, 4%, and 6% were 32378.62, 50611.05, and 65133.79 g/mol, respectively. The morphology of co-poly(anethole-LMA) showed that the surface distance between particles was getting tighter and the highest surface area in co-poly(Anethole-LMA) 6% was 233.80 m2/g.
Co-Authors Desi Suci Handayani Dewi Marliyana, Soerya Dian Wulandari Dwik Kristinawati, Dwik Elfrida Ratnawati Fajar Rakhman Wibowo Indasah Laksono Trisnantoro M. Widyo Wartono, M. Widyo Mamoru Koketsu Maulidan Firdaus Muhammad Widyo Wartono, Muhammad Widyo Nestri Handayani, Nestri Prima Dewi Kusumawati Putri, Alfianita Utama Qurotul Aini Rakhman Wibowo, Fajar Rohana, Gracia Lasma Sari, Meiyanti Ratna Kumala Setyono, Hilda Alfiyani Soerya Dewi Marliana, Soerya Dewi Soerya Dewi Marliyana Tahara, Alfia Uke Triana Kusumaningsih Trisnawati, Elyna Wahyu Widiyanti Widiyanti, Widiyanti Wiji Astuti Windrawati Windrawati, Windrawati Wisnu Permana, Wisnu