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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.
Labdane Aldehyde Diterpenoids from Curcuma mangga Rhizome Wartono, Muhammad Widyo; Aini, Qurotul; Suryanti, Venty; Firdaus, Maulidan; Rakhman Wibowo, Fajar; Dewi Marliyana, Soerya; Kusumaningsih, Triana; Suci Handayani, Desi
The Journal of Pure and Applied Chemistry Research Vol. 12 No. 3 (2023): September-December 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.03.694

Abstract

Curcuma mangga val. (Zingiberaceae) is one of the plants that used as traditional medicine by Indonesian. Several studies have been reported on the content of compounds of C. mangga, but it is not yet known which compounds have medicinal properties. In this study, two labdane diterpenes were isolated from the extract of rhizome of C. mangga. Determination of the structure conducted by NMR (1H, 13C, HSQC and HMBC) that obtained two compounds, calcaratarin A (1) and labda-8(17),12-diene-15,16-dial (2). Both compounds have an aldehyde functional group. However, both compounds did not show antibacterial activity on Escherichia coli.
Management of Solid Hazardous and Toxic Waste (LB3) in Puskesmas, Tulungagung District Indasah; Wiji Astuti; Prima Dewi Kusumawati; Suryanti, Venty
Journal of Global Research in Public Health Vol. 7 No. 2 (2022): December
Publisher : Universitas STRADA Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30994/jgrph.v7i2.447

Abstract

Public Health Center waste is considered as a link in the chain of transmission of infectious diseases. Waste can contain toxic chemicals and sharp objects that can cause health problems and injuries. The purpose of this study was to explore the management of solid hazardous and toxic waste (LB3) at the Tulungagung District Health Center. The design of this study was qualitative research with a phenomenological approach with a research focus directed at exploring the management of solid hazardous and toxic waste (LB3) at the Tulungagung District Health Center. In addition, with a qualitative approach it is hoped that the situation and problems encountered in the activity can be disclosed. The informants in this study were 22 (twenty two) Sanitarians in the Public Health Center with source triangulation. The management of solid Hazardous and Toxic Waste (LB3) at the Tulungagung District Health Center is quite good, where in terms of sorting the health center has implemented the standards that apply at the local health office, namely by preparing separate containers and containers that are safe from any contamination, then in terms of storage the health center has also implemented an effective storage system. However, there are some drawbacks starting from transportation, where in terms of transportation to the destruction of waste, most health centers cooperate with third parties, however, transportation is carried out by parties when it is not in accordance with standards where there is often a delay in transporting waste so that it accumulates in the environment for some time health center, apart from that during transport it also keeps the health center workers busy by collecting them outside of the health center working hours.
Pengembangan Budidaya Tanaman Sayuran Secara Vertikultur dan Akuaponik Budikdamber (Budidaya Ikan dalam Ember) sebagai Solusi Usaha Pertanian di Lahan Terbatas Lakshitarsari, Kynthavi Paramitha; Romadhoni, Muhammad Hafizh; Suryanti, Venty
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 11, No 2 (2022): November
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v11i2.51437

Abstract

Pandemi Covid-19 mempunyai pengaruh terhadap ekonomi warga masyarakat, terutama bagi warga yang hanya bergantung pada penghasilan harian. Salah satu cara untuk meringankan beban ekomoni warga akibat dampak pandemi Covid-19 adalah memberdayakan masyarakat untuk menerapkan konsep kawasan rumah pangan lestari agar mengoptimalkan lahan pekarangan. Kegiatan ini mengenalkan budidaya tanaman sayuran dan ikan dengan vertikultur dan akuaponik budikdamer (budidaya ikan dalam ember). Tujuannya adalah untuk membantu mewujudkan kemandirian pangan dan gizi keluarga serta meningkatkan kesejahteraan masyarakat karena adanya peluang bisnis dari kegiatan budidaya tanaman sayuran dan ikan di pekarangan. Kegiatan pengabdian ini dilaksanakan dalam beberapa tahapan, yaitu sosialisasi/penyuluhan, pelatihan dengan pendampingan perakitan instalasi vertikultur dan akuaponik budikdamer serta pendampingan pemeliharaan tanaman dan ikan. Kegiatan pengabdian ini mendapat respon yang positif dan antusiasme dari warga masyarakat. Masyarakat telah merasakan manfaat dari kegiatan ini baik dari segi ekonomi mapun estetika. Kata kunci: akuaponik; budidaya ikan dalam ember; lahan terbatas; sayuran; vertikultur
Pengenalan dan Penerapan Konsep Pengendalian Hama Penyakit Terpadu (PHPT) kepada Kelompok Wanita Tani “Loh Jinawi” di Desa Waru, Kecamatan Baki, Kabupaten Sukoharjo Pancasona, Muhammad Garda; Suryanti, Venty
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 12, No 2 (2023): November
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v12i2.64991

Abstract

Penyuluhan konsep Pengendalian Hama Penyakit Terpadu (PHPT) merupakan salah satu kegiatan KKN Tematik UNS Kelompok 216 periode Juli-Agustus 2021 di Desa Waru, Kecamatan Baki, Kabupaten Sukoharjo. Kegiatan ini bertujuan untuk mengedukasi anggota Kelompok Wanita Tani (KWT) “Loh Jinawi” dalam mengendalikan hama dan penyakit tanaman dengan menerapkan konsep pengendalian ramah lingkungan. Kegiatan dilaksanakan dengan memaparkan materi terkait definisi, tujuan, prinsip, komponen, dan bentuk implementasi PHPT di lapangan. Praktik pembuatan alat perangkap hama juga dilaksanakan, yaitu alat perangkap likat kuning dan alat perangkap lalat buah berbahan metil eugenol. Anggota KWT juga diperkenalkan bahan dapur yang dapat berpotensi sebagai pestisida nabati, seperti cabai merah, bawang merah, dan bawang putih. Cara penyemprotan pestisida yang tepat dipraktekkan bersama. Selama keberjalanan kegiatan, anggota KWT “Loh Jinawi” aktif melakukan tanya jawab dan konsultasi terkait HPT bersama mahasiswa KKN Tematik UNS.
Memperindah Ruang Publik dengan Taman dan Seni Mural sebagai Media Edukasi Sosial Kemasyarakatan Pamungkas, Satria Aji; Suryanti, Venty
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 12, No 2 (2023): November
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v12i2.65117

Abstract

Kuliah Kerja Nyata (KKN) Tematik Integratif Universitas Sebelas Maret (UNS) Surakarta Kelompok 129 dilaksanakan pada bulan Januari-Februari 2021 di RW XI Kelurahan Sangkrah, Kecamatan Pasar Kliwon, Kota Surakarta dengan judul Program Sadar Lingkungan dan Pemberdayaan Warga Kelurahan Sangkrah, Surakarta di Masa Pandemi COVID-19. Kelurahan Sangkrah terletak di daerah bantaran Sungai Bengawan Solo yang belum dikelola dengan baik. Daerah ini merupakan daerah padat penduduk dan kumuh, dimana rumah informal banyak ditemui di sekitar bantaran Bengawan Solo. Salah satu program KKN yang telah dilaksanakan adalah (1). sosialisasi pentingnya menjaga kebersihan dan keindahaan lingkungan dan (2). pelaksanaan kegiatan pemanfaatan lahan kosong di sekitar tanggul untuk dibuat taman serta membuat karya seni mural di dinding tanggul. Kegiatan ini diikuti dengan sangat antusias oleh warga masyarakat, dimana seluruh warga yaitu remaja, ibu-ibu dan bapak-bapak berkontribusi nyata untuk membuat indah lahan kosong dan dinding di tanggul bantaran Sungai Bengawan Solo. Hasil dari program kerja taman hias dan mural ini telah membuat perbedaan yang signifikan terhadap pemandangan sekitar Kelurahan Sangkrah RW XI. Seni mural bertemakan kampung KB membuat fungsi taman sebagai media edukasi. Di lokasi taman telah juga dimanfaatkan sebagai fungsi sosial yaitu sebagai tempat refreshing atau olah raga bagi warga serta tempat bermain bagi anak-anak. Fungsi ekonomi dari taman dapat terlihat dari pemanfaatn tanaman sayuran dan tanaman obat keluarga (TOGA) oleh warga masyarakat. Tanaman buah-buahan juga ditanam di lahan kosong tersebut, sehingga selain sebagai peneduh dan membuat udara segar atau bersih juga dapat dimanfaakan buahnya kelak dikemudian hari jika pohon sudah besar dan berbuah.
Mengenalkan Berdagang Secara Online Melalui Media Sosial kepada Warga di Lokasi Kuliah Kerja Nyata Pada Masa Pandemi Covid-19 Suryanti, Venty; Tiyas, Annisa Puspaning; Romadhoni, Luthfia Devi; Rijatno, Maria Kristi Abilawati Putri
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 10, No 2 (2021): November
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v10i2.47702

Abstract

Pada bulan Mei-Juni 2020 telah dilaksanakan Program Kuliah Kerja Nyata (KKN) oleh mahasiswa Universitas Sebelas Maret (UNS). Dalam masa pandemi Covid-19, KKN dilaksanakan di lokasi tempat tinggal mahasiswa dengan tetap menerapkan protokol kesehatan. Dalam melaksanakan program KKN, pengumpulan masa dihindari. Salah satu program KKN yang sudah dilaksanakan adalah sosialisasi dan implementasi E-commerce kepada warga masyarakat lokasi KKN. Berdagang secara online dengan media sosial wa dan akun Instagram telah dilakukan. Beberapa warga sudah menawarkan barang dagangannya lewat media sosial dan transaksi jual beli juga sudah dilaksanakan. Pendampingan kepada warga masih perlu terus dilakukan untuk mempromosikan barang dagangannya dengan tampilan yang lebih menarik, cara membungkus (packing), mengirim barang dagangan dan pembayaran dengan transfer uang.