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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.
Peningkatan Rendemen Minyak Atsiri Melalui Maserasi Awal dengan Metode Ultrasonikasi di Rumah Atsiri Indonesia Firdaus, Maulidan; Suryanti, Venty; Kusumaningsih, Triana; Handayani, Desi Suci; Marliyana, Soerya Dewi; Wibowo, Fajar Rakhman; Wartono, Muhammad Widyo; Karimah, Qosrul; Darmawan, Dhea Afrisa
PRIMA: Journal of Community Empowering and Services Vol 9, No 1 (2025): June
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/prima.v9i1.86385

Abstract

Enhancing Essential Oils Yield through Initial Maceration using Ultrasonication Method at Rumah Atsiri Indonesia. Metode ekstraksi minyak atsiri yang paling umum digunakan adalah destilasi uap. Pada umumnya, metode destilasi uap banyak digunakan oleh industri kecil termasuk di Rumah Atsiri Indonesia (RAI), karena memiliki beberapa keuntungan, diantaranya pengoperasian yang mudah serta peralatan yang sederhana. Akan tetapi, metode ini juga memiliki beberapa kelemahan, seperti membutuhkan waktu yang cukup lama dan hasil produksi yang kurang optimal. Untuk mengatasi kelemahan tersebut, solusi yang dapat dilakukan adalah melakukan proses destilasi minyak atsiri yang didahului maserasi dengan bantuan ultrasonik. Bekerja sama dengan RAI, Tim Riset Group Natural Products and Synthetic Organic Chemistry Prodi Kimia FMIPA UNS telah melaksanakan Program Pengabdian kepada Masyarakat (PkM). PkM bertujuan memberikan penyuluhan sekaligus praktik mengenai cara destilasi minyak atsiri dengan memulai proses maserasi dan menerapkan teknik ultrasonikasi di RAI. Pendekatan ini bertujuan untuk meningkatkan efisiensi dan hasil proses destilasi dengan menggunakan gelombang ultrasonik untuk membantu memecah bahan tanaman sebelum destilasi. Hal ini memudahkan untuk mengekstrak lebih banyak minyak dan meningkatkan kualitas minyak atsiri secara keseluruhan. Kegiatan dimulai dengan diskusi tentang teori dan aplikasi maserasi awal dengan metode ultrasonikasi. Sesi selanjutnya adalah praktik maserasi awal dengan metode ultrasonikasi sebelum dilakukan destilasi. Luaran dari pelatihan ini adalah adanya peningkatan performa metode destilasi minyak atsiri. Hasil perlakuan ekstraksi awal dengan teknik ultrasonikasi bisa meningkatkan rendemen minyak sereh wangi dari 0,86% menjadi 1,86% atau meningkat 2,2 kali lebih banyak dibandingkan tanpa maserasi awal.
Pelatihan Ecoprint dan Pemasaran Online sebagai Pemberdayaan Ekonomi Kreatif bagi Warga Kelurahan Sangkrah, Kecamatan Pasar Kliwon, Kota Surakarta Ramadhani, Via; Suryanti, Venty; Godinho, Suzi; Pratama, Rakha Samudra
SEMAR (Jurnal Ilmu Pengetahuan, Teknologi, dan Seni bagi Masyarakat) Vol 13, No 1 (2024): Mei
Publisher : LPPM UNS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/semar.v13i1.79302

Abstract

Sebagaian besar mata pencaharian masyarakat Kelurahan Sangkrah, Kecamatan Pasar Kliwon, Kota Surakarta adalah buruh, pedagang kecil dan pekerja lepas. Peningkatan kesejahteraan warga dengan menciptakan lapangan usaha baru yang tidak memerlukan modal besar sangat diperlukan. Banyaknya ragam tanaman di sekitar area tanggul Bengawan Solo dapat dimanfaatkan sebagai bahan ecoprint untuk meningkatkan ekonomi warga. Mahasiswa Universitas Sebelas Maret (UNS) telah melaksanakan kegiatan Kuliah Kerja Nyata (KKN) pada periode Januari-Februari 2021. Kegiatan yang dilaksanakan adalah pengenalan, pelatihan dan pendampingan ecoprint dengan bahan pewarna alami tumbuh-tumbuhan yang ada di lingkungan area Kelurahan Sangkrah. Kegiatan pengenalan dan pendampingan pemasaran ecoprint berbasis teknologi informasi juga dilakukan agar ecoprint yang dihasilkan dapat dipasarkan dengan daya jangkau penjualan menjadi lebih luas. Sasaran kegiatan adalah ibu-ibu PKK RW XI Kelurahan Sangkrah yang tidak memiliki penghasilan. Kegiatan ini berjalan dengan baik dan dapat meningkatkan pengetahuan warga masyarakat tentang ecoprint dan pemasaran online. Dari program ini, warga masyarakat dapat membuat produk ecoprint sehingga dapat menambah penghasilan keluarga untuk meningkatkan kesejahteraan masyarakat. Program kerja KKN yang dilaksanakan telah mendukung program pemerintah untuk mendorong ekonomi kreatif, yaitu mendorong peningkatan kreativitas dan kapasitas masyarakat dengan memanfaatkan potensi alami yang ada di lingkungan sekitar. Kegiatan pendampingan pengembangan produk dan pemasarannya dapat terus dilakukan oleh pemerintah daerah terkait supaya berdampak nyata terhadap peningkatan pendapatan warga masyarakat. Most residents in Sangkrah Village, Pasar Kliwon District, Surakarta City, live as laborers, small traders, and casual workers. It is critical to improve residents' well-being by developing new economic fields that do not demand large amounts of capital. The diverse plant life surrounding the Bengawan Solo embankment region can be used as eco-print material to boost the local economy. Students of Universitas Sebelas Maret (UNS) participated in a student community service program at the Sangkrah Village in January and February 2021. The activities of this program included the introduction of training and help in eco-printing using natural plant dyes. Eco-print marketing introduction and assistance actions based on information technology are also carried out to promote the resulting eco-print with a wider sales reach. The activity is aimed at low-income women from society of RW XI Sangkrah Village. This activity was successful in increasing community awareness of eco-print and online marketing. Communal members can use this program to manufacture eco-print products to supplement their household income and boost communal welfare. The student community service program has supported the government's initiative to promote the creative economy, specifically encouraging enhanced innovation and community capacity through utilizing natural potential in the surrounding environment. The appropriate government sector can continue to carry out assistance operations for product development and marketing so that it has a real influence on boosting the income of community members
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.