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Parbuntari, Hesty
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Identifikasi Senyawa Metabolit Sekunder pada Daun Salam (Syzygium polyanthum) Erwan, Meriska Octavia; Parbuntari, Hesty
Periodic Vol 12, No 3 (2023): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v12i3.118432

Abstract

Syzygium polyanthum or bay leaf is a plant that belongs to the Myrataceae family. Almost all parts of this plant can be used, such as roots, bark, leaves, flowers, fruit, and young shoots. But the part that is most often consumed is the leaves, which are widely used traditionally as a remedy for stomach aches, overcoming gout, high cholesterol, stroke, stomach ulcers, and improving blood circulation. In this study, identification of secondary metabolites contained in Syzygium polyanthum was carried out. The results of the identification indicate that Syzygium polyanthum contains secondary metabolites such as flavonoids, alkaloids, terpenoids, and saponins.
Skrining Fitokimia Ekstrak Metanol Dari Daun Jati Belanda (Guazuma ulmifolia) Yuliandari, Fadhira; Parbuntari, Hesty
Periodic Vol 12, No 3 (2023): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v12i3.118434

Abstract

Dutch teak (Guazuma ulmifolia) is a plant that belongs to the family Sterculiaceae and grows in Ecuador, Panamaa, and other American Latin countries. This Dutch teak is found in bushes, as well as in forests. This Dutch teak plant is often the most needed for health, especially the leaves. Dutch teak leaves have been used as traditional medicine to maintain a healthy body, lose weight as a slimming herb, to lowers cholesterol levels in the body. Research has been done phytochemical screening to determine the secondary metabolites contained in Guazuma ulmifolia. Phytochemicals test results showed that Guazuma ulmifolia contains secondary metabolites in the form of flavonoids, steroids, alkaloid, and saponins.
Adsorpsi Ion Ca2+ Menggunakan Adsorben Silika GPTMS Termodifikasi Sulfonat Putri, Reza Athia; Oktavia, Budhi; Alizar, Alizar; Parbuntari, Hesty
Periodic Vol 13, No 2 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i2.124505

Abstract

Silica is a metal oxide compound that is widely found in nature and is used as an adsorbent. Silica has the ability to adsorb ions because it has two groups of active sites that can be modified, namely siloxane (Si-O-Si) and silanol (Si-OH) groups. This modification was made to increase the ability of silica to absorb ions, one of which is the metal ion Ca2+. Silica modification was carried out by adding a bridging compound, namely glycidoxypropyltrimethoxysilane (GPTMS). The purpose of this research was to determine the optimum conditions of pH, contact time, and adsorption concentration of Ca2+ metal ions on sulfonate-modified GPTMS silica using batch method. The filtrate resulting from adsorption was analyzed using an atomic absorption spectrophotometer (AAS). The results showed that the optimum conditions for the adsorption of Ca2+ metal ions by sulfonate-modified GPTMS silica occurred at pH 5, contact time of 60 minutes, and concentration of 20 ppm. The adsorption process of Ca2+ metal ions by sulfonate-modified GPTMS silica follows the langmuir isotherm equation with an absorption capacity of 2.7824 mg/g. The results of the comparison of the absorption capacity of silica after modification obtained greater results than before modification, where the absorption capacity after modification was 2.225375 mg/g with an absorption percentage of 57.17%, before modification the absorption capacity was 1.677275 mg/g, and the absorption percentage was 43.07%.
Skrining Fitokimia Ekstrak Metanol Buah Labu Siam Maulidina, Freshilla; Parbuntari, Hesty
Periodic Vol 12, No 3 (2023): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v12i3.118448

Abstract

Sechium edule. or chayote is a plant that belongs to the Cucurbitaceae family. Almost all parts of this plant can be consumed, one of which is the fruits. chayote can be cooked as a vegetable and is a good source of vitamin C . In this study, phytochemical screening was performed to identify secondary metabolites containing in Musa x paradisiaca L. The results of phytochemical screening showed that Sechium edule. contained secondary metabolites of flavonoids, steroids and saponins, but did not contain alkaloids and terpenoids.
Pengaruh Proses Pengeringan Terhadap Kandungan Fitokimia Jamur Tiram Putih (Pleurotus ostreatus L.) Azura, Nur; Parbuntari, Hesty
Periodic Vol 13, No 2 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i2.123966

Abstract

Pleurotus ostreatus or oyster mushroom is a fungi that usually consumed by people because they have a lot of nutrients and contains bioactive secondary metabolites. However, some bioactive compounds will be damaged if the sample is trough the drying process. The purpose of this study was to know the effect of the drying process on the content of bioactive compounds from oyster mushroom (Pluerotus ostreatus). The results showed a different in the content of bioactive compounds from dried and orginal Pluerotus ostreatus.. Original Pluerotus ostreatus contain bioactive secondary metabolites of alkaloids, steroids, flavonoids and saponins. While dried Pluerotus ostreatus contain alkaloids, steroids, saponin and do not contained flavonoid. Both of sample do not contained terpenoid.
Identifikasi Senyawa Flavonoid Daun Jinten (Plectranthus amboinicus) Menggunakan Liquid Chromatography-Mass Spectrometry (LC-MS) dan Potensinya sebagai Antikanker Secara In-Vitro Martha, Rahma Diyan; Danar, Danar; Safitri, Yunita Diyah; Parbuntari, Hesty
Sainteks Vol 21, No 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30595/sainteks.v21i1.21171

Abstract

Penelitian ini mengungkapkan potensi senyawa flavonoid dalam daun jinten (Plectranthus amboinicus) sebagai agen antikanker. Melalui identifikasi menggunakan Liquid Chromatography-Mass Spectrometry (LC-MS), ditemukan delapan senyawa flavonoid, termasuk Kaempferol 3-(5''-feruloylapioside), Kaempferol 3-(6''-caffeoylglucoside), dan Kaempferol 3-glucosyl-(1 2)-galactosyl-(1 2)-glucoside. Senyawa-senyawa ini telah terbukti memiliki potensi antikanker melalui penelitian sebelumnya. Metode LC-MS dipilih untuk identifikasi senyawa karena memberikan data yang informatif, termasuk informasi tentang massa molekul senyawa yang teridentifikasi. Proses penelitian melibatkan beberapa langkah, mulai dari pembuatan simplisia daun jinten, pembuatan ekstrak melalui maserasi, fraksinasi, hingga identifikasi senyawa menggunakan LC-MS. Temuan ini mengindikasikan bahwa daun jinten memiliki potensi sebagai sumber senyawa antikanker yang bernilai, yang dapat menjadi dasar untuk penelitian lebih lanjut dalam memanfaatkannya dalam terapi kanker.
Analisis In Vitro Aktivitas Antioksidan Ekstrak Aseton dari Ranting Horsfieldia macrothyrsa Menggunakan Beragam Metode: In Vitro Analysis of Antioxidant Activity of Horsfieldia macrothyrsa Twig Acetone Extract Using Various Methods Asnah, Nur; Megawati, Megawati; Parbuntari, Hesty
Jurnal Sumberdaya Hayati Vol. 10 No. 2 (2024): 2024
Publisher : Departemen Biologi, Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jsdh.10.2.48-53

Abstract

Horsfieldia macrothyrsa (Miq) Warb. is a plant that contains secondary metabolite compounds that can act as antioxidants. This research aims to determine the antioxidant potential of the acetone extract of the H. macrothyrsa plant by looking at the IC50 value. Twigs of the H. macrothrysa plant were extracted using the maceration method using acetone solvent. The results of the antioxidant activity test using the DPPH (2,2-diphenyl-1-picrylhydrazyl) method showed very strong antioxidant activity with an IC50 value of 6.348 µg/ml whereas the IC50 value of the standard antioxidant quercetin is and quercetin 1.261 µg/ml. In antioxidant testing using the ABTS (2,2-azinobis (3-ethylbenzothiazoline-6-sulfonate) method, an IC50 value of 12,772 µg/ml was obtained and FRAP (Ferric Reducing Antioxidant Power) obtained an IC50 value of 7,511 µg/ml. Based on the results, it can be concluded that the acetone extract of H. macrothrysa plant twigs has very strong antioxidant activity towards reducing DPPH (2,2-diphenyl-1-picrylhydrazyl) compared to using the ABTS and FRAP methods.
Identifikasi dan Kuantifikasi Kadar Protein pada Putih Telur Bebek (Anas domesticus) Yulistia, Siska; Parbuntari, Hesty
Journal of Multidisciplinary Inquiry in Science, Technology and Educational Research Vol. 1 No. 4 (2024): AGUSTUS-OKTOBER 2024
Publisher : UNIVERSITAS SERAMBI MEKKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/mister.v1i4.2132

Abstract

Proteins found in animal foods such as eggs are said to be perfect proteins. One example of high protein is duck eggs. In this practicum, qualitative analysis of protein was carried out using the biuret color reagent test, while quantitative analysis was carried out using UV-Vis spectrophotometry. The results of the experiment showed that the protein content of the duck egg white was positive for protein, which was indicated by the presence of a purple color. In qualitative analysis with UV-Vis spectrophotometry method with variations in the concentration of standard solutions, namely 0.2, 0.4, 0.6, 0.8, 1 mg/mL. The maximum wavelength obtained at a concentration of 0.6 mg/ml is 815 nm.
Sintesis Silikon dari Silika (SiO2) Menggunakan Metode Reduksi Hidrotermal Azzahra, Wenalda Hanifah; Beri, Deski; Aini, Syamsi; Parbuntari, Hesty
Periodic Vol 13, No 3 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i3.125787

Abstract

Silicon is one of the materials whose utilization is getting bigger along with the times. Hydrothermal reduction method is one of the methods that can be done to synthesize silicon from natural materials because silicon does not exist freely in nature. The purpose of this research is to synthesize silicon using hydrothermal reduction method. The precursor used in the reduction process is silica (SiO2). The metal used as a reductant is magnesium metal and the molten salt that can be used is AlCl3. The reduction process is carried out by varying the reduction temperature to see the degree of crystallinity of silicon formed. Silicon formed is seen at the peak of  28.44, 47.30, 56.11, 69.13 dan 76.38.
Application of aloe vera gel edible coating for Minimizing damage to tomatoes in the farming group Usaha Bersama Pemuda Solok Saiyo Sakato, Nagari Surian, Solok Regency Parbuntari, Hesty; Amelia, Kiki; Kurniawati, Desy; Mahmud, Mahmud; Martha, Rahma Dyan
Pelita Eksakta Vol 7 No 2 (2024): Pelita Eksakta, Vol. 7, No. 2
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol7-iss2/250

Abstract

The most common profession among Surian people is in the agricultural sector, such as tomato farmers. The farmers who are partners in PKM activities are tomato farmers in Nagari Surian, Pantai Cermin District, Solok Regency. Tomato farmers often experience losses because when the tomato harvest season arrives the product is abundant, while demand is constant. Farmers will just let the tomatoes rot because the harvesting process will take up a lot of energy and money. This activity focuses on efforts to control the quality of post-harvest tomatoes by using a coating technique based on edible natural ingredients (edible coating) with the natural ingredient aloe vera. The stages of this activity are divided into three activities, namely initial activities which include analysis of partner needs, core (providing material and practice) and final (program evaluation). Based on the results of a questionnaire given to partners as many as 20 people with an age range of 25 – 46 years and consisting of men and women, 90% of participants agreed that this edible coating could be used to solve the problem of tomatoes that rot easily after harvest.
Co-Authors Aini, Syamsi Alizar, Alizar Annisa Annisa Asnah, Nur Azura, Nur Azzahra, Wenalda Hanifah Budhi Oktavia Danar Danar Danar, Danar Deski Beri Desy Kurniawati Erwan, Meriska Octavia Fajri, Ayu Insa Febri Perdana, Keke Febrianti, Latifah Intan Firdaus, Salsabila Fitri Amelia HB, Zulfahmi Husna, Miftahul Ifan Rivaldo INDRI NOVITA SARI Iryani Iryani Iswendi iswendi Kholifah, Siti Nurriyatul Kiki Amelia, Kiki Mahmud Mahmud Maida, Margarita Claudya Martha, Rahma Dyan Maulidina, Freshilla Megawati - Nofri Yuhelman Putri, Reza Athia Rahma Diyan Martha Safitri, Yunita Diyah Saputra, Anwar Sari, Adilla Setia Suryani, Okta Yuliandari, Fadhira Yulistia, Siska