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All Journal Jurnal Entropi Jurnal Inovasi Sainstek Jurnal Pengabdian Pada Masyarakat Jurnal Pendidikan Kimia (JPKim) Indonesian Journal of Chemistry Jambura Journal of Educational Chemistry Jambura Journal of Chemistry Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat)
Weny J.A Musa
Universitas Negeri Gorontalo
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Education Engineering Environmental Science Medicine & Pharmacology Public Health Social Sciences Other

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ANALISIS KADAR ASAM LINOLEAT DAN ASAM LINOLENAT PADA TAHU DAN TEMPE YANG DIJUAL DI PASAR TELAGA SECARA GC-MS Kilo, Ahmad Kadir; Isa, Ishak; Musa, Weny JA
Sainstek VOL 06, NO 06, 2012
Publisher : Jurnal Sainstek

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Abstract

The purpose of this research is to measure Linoleic Acid and Linolenic Acid Level in Tofu and Fermented Soybean Cake through Gas Chromatography-Mass Spectrometry. This is a laboratory research that use tofu and fermented soybean cake from Telaga traditional market as the sample of research. Sample was extracted by using n-hexane to produce oil. Then, oil was hydrolyzed by using KOH liquid and H2SO4 as a catalyst to get the free fatty acid. Then, it was converted to metil ester by using CH3OH as a solvent and H2SO4 as a catalyst for the necessity of fatty acid analysis. This research used Gas Chromatography-Mass Spectrometry to identify Linoleic Acid and Linolenic Acid Level in the sample. The analysis result shows that the biggest component of metil ester in tofu and soybean cake are dominated by metil linoleic (metil 9.12-octadekadienoat) with percentage 55.25% and 27.08% for each. Mean, the linolenic acid in tofu and fermented soybean cake cannot be detected by GC-MS. It is caused by the fermentation time, high temperature during production and fermentation, and humidity in the sample. Therefore, a further research is necessary to investigate level of linolenic acid. In tofu and fermented soybean cake.
ANALISIS LOGAM-LOGAM PADA BATU APUNG DAN MODIFIKASINYA SERTA UJI ADSORPSINYA PADA LARUTAN ASAM ASETAT ., Zukria; Mardjan, Mardjan; Musa, Weny J.A
Sainstek VOL 06, NO 05, 2012
Publisher : Jurnal Sainstek

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The study aims to analyze metal pregnancy in pumice and the modification with test adsorbtion to acetic acid. sample are taken from gorontalo city and kab. buol. at first sample menggrinding use uphand, then refined with mortal up to pass by sieve 100 mesh. Smoothing of both pumice modified with soaking in solution of HCl 1 M, 1 M H2SO4 and HNO3 1 M, the next made into pellets, calcined at 6000C. the metal pregnancy determination (Cr, Ca, Mg, Mn, and Fe) with Atomic Absorption Spectroscopy (AAS), Si and Al with technique gravimetric, with test adsorpsi solution with titration technique.The analysis showed levels of Si in Gorontalo and Buol pumice increased with immersion HNO3, and the smallest Al content in Gorontalo and Buol pumice with HNO3 immersion. The levels of metals (Cr, Ca, Mg, Mn, and Fe) on Buol's pumice increased with HCl immersion, and levels of metals (Cr, Ca, Mg, Mn, and Fe) in Gorontalo's pumice decreased by HCl immersion. Characterization results showed the two samples of pumice adsorb both modified and unmodified for acetic acid is very good.
ISOLASI DAN IDENTIFIKASI SENYAWA FENOL DARI EKSTRAK METANOL BIJI PEPAYA (Carica Papaya Linn) Olii, Helda; Musa, Weny J.A; Paputungan, Mardjan
Sainstek VOL 07, NO 01, 2013
Publisher : Jurnal Sainstek

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Isolation and Identification Fenol Compound of Papaya Seed (Carica Papaya L). The objective of this sresearch is to isolate and identify the compound from Papaya Seed (Carica Papaya L). There are around 600gr of Papaya Seed (Carica Papaya L) pollen mixed with methanol solution and produced 4,6 L of solution then evaporated and produced 88, 89 gr thick extract. Separation by chromatography column got 7 fractions (H1 -H 7). Fraction H7 continued by purify tested by using dimension KLT 1 and KLT 2 produced 1 spot. The chemistry tested shows positively to fenol and alkaloid. Pure isolate continued by spectrometry analysis UV-Vis and IR. The result of spectopometry from isolate showed that there are an absorption on wave length 262, 5 nm tape 1 and 213, 5 nm tape 2. Identification by IR shows that there are cluster function O-H bond, C-H aromatic, C-H Aliphatic, C=C, C=O, and C=O. from both analysis and chemistry tested pure isolate compound is Fenol compound.
KARAKTERISASI DAN MEKANISME KERJA SENYAWA AKTIF ALAMI DARI DAUN PAGODA (CLERODENDRUM JAPONICUM) YANG MENGINDUKSI KETAHANAN SISTEMIK TANAMAN CABAI MERAH TERHADAP CUCUMBER MOSAIC VIRUS (CMV) Weny Musa
Jurnal Inovasi VOL. 07, NO. 02, THN. 2010
Publisher : Jurnal Inovasi

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Abstract

Penelitian ini telah berhasil mengungkapkan ekstrak daun bunga pagoda dengan pelarut selain air bersifat sebagai induksi ketahanan sistemik tanaman cabai merah terhadap Cucumber Mosaic Virus (CMV). Hasil penelitian menunjukkan bahwa daun bunga pagoda yang dimaserasi dan dipartisi menggunakan pelarut organik mempunyai persentase penghambatan diatas 55%. Persentase penghambatan di atas 55% bersifat sebagai induksi ketahanan sistemik tanaman cabai merah terhadap CMV. Hasil ini mengungkapakan ekstrak daun bunga pagoda yang dimaserasi serta dipartisi bukan sebagai senyawa anti viral tetapi merupakan induksi pada tanaman cabe yang terserang CMV. Uji fitokimia menunjukkan positif terhadap terpen dan steroid.
Biopestisida Nabati dari Tumbuhan Tradisional Asal Gorontalo di Desa Mustika, Boalemo Weny J A Musa; Suleman Duengo; Ahmad Kadir Kilo
Jurnal Pengabdian Pada Masyarakat Vol 5 No 3 (2020)
Publisher : Universitas Mathla'ul Anwar Banten

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30653/002.202053.200

Abstract

VEGETABLE BIOPESTICIDE FROM GORONTALO TRADITIONAL PLANTS IN MUSTIKA VILLAGE, BOALEMO. Most of the villagers of Mustika are farmers who use chemical pesticides in dealing with pests that have negative effects on plants, the environment and public health, so biopesticides are needed as a substitute for these chemical pesticides. Tombili and tubile are plants that are often found in Mustika Village, and can be used as biopesticides. This method of service is through the preparation and briefing stages as well as the implementation phase of the program. In the preparation stage, an initial survey of the location of the Community Service Program is carried out. The surveyed location is in the village of Mustika, Kec. Paguyaman, Kab. Boalemo The debriefing phase of the Community Service Program Supervisor team to equip students with biopesticides. At the implementation stage the program begins with the preparation and application of rice plants. The yields obtained by the largest grain of tombili water extracted dried rice were at a concentration of 0.01%, with a dry grain weight of 7.998 kg/ha, while for tubile extract the largest weight of dry grain was at a concentration of 0.25% with a weight of dry grain as much as 9.331 Kg / Ha. For the control or untreated rice produces dry rice of 2,666 kg/ha, whereas for samples using chemical pesticides, 6,665 kg / ha of dry rice were produced.
Pelatihan Pemanfaatan Buah Mangrove Menjadi Produk Pangan Bagi Masyarakat Dewi Wahyuni Baderan; Weny JA Musa
Jurnal Sibermas (Sinergi Pemberdayaan Masyarakat) Vol 10, No 3 (2021): Jurnal Sibermas (Sinergi Bersama Masyarakat)
Publisher : Univeristas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37905/sibermas.v10i3.11110

Abstract

Mangroves are ecosystems in coastal areas that have important ecological and economic benefits derived from leaves, seeds and fruit. One of the coastal areas that contains mangrove forests is Bajo Village, Tilamuta District, Bualemo Regency, Gorontalo Province which is included in the Tomini Bay marine area which is the heart of the socio-economic life of the local community. Not many coastal communities know that mangroves contain nutrients including carbohydrates, proteins, and antioxidants that are important for humans, which are sourced from fruit and mangrove propagules and can be developed into raw materials for several foods that contain nutrients for human health. The specific target to be achieved is to provide knowledge/technology about diversification of non-rice food ingredients to coastal communities, especially those in the coastal area of Bajo Village, Tilamuta District, Bualemo Regency, Gorontalo Province in order to produce various products as an effort to improve the family economy. The methods to be used are group discussion, lecture, participatory, and exercise methods. If this group of women fishermen is skilled at processing mangrove fruit and marketing it, it is expected to increase the independence, quality of life, and family income of coastal women. In the long term, it becomes a mangrove-based livelihood system that supports the income of the Bajo coastal population. Mangrove-based livelihood systems require sustainable mangrove raw materials, this is an incentive for women to plant mangroves and preserve them. Thus, this activity empowers women fishermen to have equal access to mangrove conservation, and reduces carbon emissions in order to overcome global warming and climate change and to overcome food shortages in the future.
Triterpenoid compound from metanol extract of mangrove leaves (Sonneratia alba) and anti-cholesterol activity test Weny J.A Musa; Nurhayati Bialangi; Boima Situmeang; Saronom Silaban
Jurnal Pendidikan Kimia (JPKim) Vol 11, No 1 (2019): April
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.248 KB) | DOI: 10.24114/jpkim.v11i1.13124

Abstract

Mangrove plant (Sonneratia alba) is easily found in West and North Indonesia. Mangrove plant has the potential of being a herb medicine. Mangrove plant variously used in ethnomedicine to treat various deseases like wounds, diarrhea, and fever. In previously sutudy, leaf extract of mangrove plants reported have anti-cholesterol activity. This plant is widely used to treat various deseases like wounds, diarrhea, and fever. The purpose of this study was to isolate triterpenoid compound from the ethyl acetate fraction of mangrove leaves and anticholesterol activity test. Extraction was done by maceration method using methanol 96% as solvent. Isolation was carried out by column chromatography using a combination of n-hexane, ethyl acetate, and methanol solvents. The elucidation of the structure was determined by analysis of IR, 1H-NMR, 13C-NMR, 2D-NMR, and MS spectroscopies as well as by comparisons with the literature. Anticholesterol activity test was carried out in vitro. The results showed that triterpenoid compounds (lupeol) were able to reduce cholesterol from concentrations of 5, 10, 20, 40, 60, and 80 ppm are 13.7; 29.4; 49.0; 60,1; 70.2; and 77.0% respectively. Therefore, isolates compound (lupeol) have anti-cholesterol activity.Keywords:Anti-cholesterol; mangrove; triterpenes
Methanol extract from kesambi (Schleichera oleosa (L.) oken) stem bark as a natural antioxidant to increase crude palm oil (CPO) quality Weny J A Musa; Nurhayati Bialangi; Diky Kurniawan; M Amrin Sunardi; Ninik Triayu susparini; Sriwijayanti Sriwijayanti; Boima Situmeang
Jurnal Pendidikan Kimia (JPKim) Vol 13, No 3 (2021): December
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (340.16 KB) | DOI: 10.24114/jpkim.v13i3.29018

Abstract

The content of active compounds in methanol extract of kesambi stem bark (Scheleicera oleosa) is known to have good antioxidant activity. Methanol extract of kesambi stem bark contain flavonoid and fenolic compounds. The purpose of this study was to evaluate the methanol extract of kesambi in inhibiting the oxidation of crude palm oil (CPO). In this study, the extraction of kesambi stem bark was carried out with methanol solvent. Antioxidant activity test of methanol extract of kesambi using the DPPH method. The parameters observed were free fatty acids (FFA) values, acids value, and DOBI (Deterioration of Bleachability Index). The used concentration of natural antioxidant were 200; 400; 600; 800 and 1000 ppm. Based on the results of this study, the natural antioxidant of methanol extract of Kesambi stem bark (Schleichera oleosa) can reduce levels of free fatty acid numbers, acid value, and DOBI value. Actioxidant activity methanol extract of kesambi stem bark shown IC50 42.092 ppm. The lowest FFA levels and acid numbers were obtained from samples with addition of 1000 ppm natural antioxidants with free fatty acid (4.1%), acid value (7.7 mg KOH/g) while the DOBI value increased to 1.331. Furthermore, FFA value meets the CPO quality standard, according to SNI-01-2901-2006. Keywords: Crude palm oil, antioxidant, free fatty acid (FFA), acid value
Alkaloid compound from Tombili (Caesalpinia bonduc) as biopesticide agent on rice plants Weny J.A Musa; Suleman Duengo; Ahmad Kadir Kilo; Boima Situmeang
Jurnal Pendidikan Kimia (JPKim) Vol 12, No 3 (2020): December
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (283.273 KB) | DOI: 10.24114/jpkim.v12i3.21165

Abstract

The purpose of these study is to determine the effect of active compound from tombili seed extract as a vegetable pesticide in the prevention of soil pest in rice plants. The method of these researches is isolation to obtain pure isolates, characterization by using infrared spectrophotometer (IR) and UV-VIS spectrophotometer then following biological test. The isolates obtained were tested positive for phytochemical containing alkaloid compounds and characterized as amorphous crystals. Identification of IR spectrophotometer generate a functioning -NH wave group of the wavelengths region of 3423.4 cm-1, bend C-N at wave number 1242.1 cm-1, C-H stretch at wave number 2925.8 and 2854.5 cm-1, bend C-H at 1475 wave numbers 1540 cm-1, carbonyl group (C = O) at the 1720.4 cm-1 wave number which is probably an alkaloid compound. The UV-VIS spectrophotometer results in a maximum absorption at 209.9 nm wavelengths indicated the presence of double bonds between the C = O functional group suspected as a result of the successive electronic transitions to n-π * and n-σ *. The result of biological test showed that methanol extracts of tombili seed can be used as a vegetable pesticide in pest prevention on rice plants, the most effective concentration used in this biological test is at 0.1% concentration, with very high effectiveness in eradicating pest on rice plants.Keywords: Tombili, Alkaloid, Biopesticide
Antibacterial activity and phytochemical screening of Kesambi (Sapindaceae) against Eschericia coli and Staphylococcus aureus Boima Situmeang; Agus Malik Ibrahim; Nurhayati Bialangi; Weny J.A Musa; Saronom Silaban
Jurnal Pendidikan Kimia (JPKim) Vol 11, No 1 (2019): April
Publisher : Pascasarjana Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (334.433 KB) | DOI: 10.24114/jpkim.v11i1.13078

Abstract

Kesambi plant (Schleichera oleosa) is a medicinal plant belongs to family Sapindaceae, commonly found in tropical and subtropical regions of the world. In Indonesia, kesambi plants can be found in Java and Bali island. The purpose of this study is to extraction and antibacterial activity test of steam bark extract of kesambi against Escherichia coli and Staphylococcus aureus. Extraction was done by maceration method using n-hexane, ethyl acetate and methanol. Antibacerial test using Kirby bauer method by measure inhibition zone. Phytochemical screening shown that n-hexane extract contain triterpenes and steroid compounds. Ethyl acetate extract contain triterpenes, flavonoid, steroid, and fenolic compounds. Methanol extract contain flavonoid, fenolic and triterpenes compounds. Inhibition zone of n-hexane, ethyl acetate and methanol extracts against E. coli and S. aureus at concentration of  5000 µg/mL showed 4.4; 7.9; 4.6 mm and 4.7; 8.9; 4.5 respectively, while amoxicillin and ciprofloxacin as positive control at concentration of 100 µg/mL showed 6.9 and 7.1 mm respectively. Kesambi extract have potential as antibacterial against E. coli and S. aureus.Keywords:Kesambi; antibacterial; Eschericia coli; Staphylococus aureus
Co-Authors Achmad Zainuddin Ahmad Kadir Kilo Anwar, Zois Bintaria, Harianti Boima Situmeang Boima Situmeang Dewi Wahyuni K. Baderan Diky Kurniawan Fauziah, Eka Donna Hariani, Wa Helda Olii Hersanti - Ibrahim, Agus Malik Ishak Isa Iswan Dunggio La Alio Lukman A. R. Laliyo M Amrin Sunardi Mardjan Mardjan Mardjan Paputungan Muhridja, Melisa Murniati . Nurhayati Bialangi Riska Aksara Roekmi-ati Tjokronegoro Ruslan, Rusnawati Saronom Silaban Sriwijayanti Suleman Duengo Susparini, Ninik Triayu Wulansari, Najwa Shanti Yuszda K Salimi Zukria .