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Skrining Fitokimia dan Kadar Flavonoid Total Ekstrak Aseton dan Etil Asetat Biji Buah Bisbul (Diospyros Discolor) Tumbuhan Endemik Bogor Dian Arrisujaya; Devy Susanty; Resha Ratna Kusumah
Cendekia Journal of Pharmacy Vol 3, No 2 (2019): Cendekia Journal of Pharmacy
Publisher : STIKES Cendekia Utama Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31596/cjp.v3i2.46

Beberapa bagian dari Diospiros discolor (tanaman Bisbul) telah dilaporkan memiliki berbagai khasiat terkait dengan kandungan flavonoid pada masing-masing bagian tanaman tersebut. Biji buah bisbul belum dilaporkan dan diduga mempunyai kandungan yang sama dengan bagian lain. Penelitian ini dilakukan untuk mengetahui kandungan metabolit sekunder dan kadar flavonoid total pada ekstrak biji bisbul. Pada penelitian ini, biji buah bisbul diekstrak menggunakan pelarut aseton dan etil asetat. Ekstraksi dilakukan dengan metode maserasi selama 4×24 jam dengan penggantian pelarut. Rendemen ekstrak aseton dan etil asetat biji buah bisbul yaitu 30,12% dan 28,14%. Kandungan metabolit sekunder pada masing-masing ekstrak diketahui melalui skrining fitokimia. Hasil Uji fitokimia menunjukkan kedua ekstrak mengandung alkaloid, flavonoid, saponin, Triterpenoid/Steroid, dan Tanin. Analisis kadar flavonoid total pada kedua ekstrak dilakukan menggunakan spektrofotometer UV-VIS. Kadar flavonoid total ekstrak etil asetat lebih tinggi dari ekstrak aseton yaitu masing-masing 423,60 ± 2,68 dan 377,03 ± 1,50 mg Ekuivalen Katekin/ g ekstrak.

KARAKTERISTIK MEMBRAN KOMPOSIT BERBASIS KITOSAN/PVA TERMODIFIKASI LEMPUNG DARI BABAKAN MADANG BOGOR Thria Kharisma; Nina Ariesta; Dian Arrisujaya
JURNAL SAINS NATURAL Vol. 10 No. 1 (2020): Sains Natural
Publisher : Universitas Nusa Bangsa

The use of natural polymers as membranes of DMFC from chitosan was developed because it is more environmentally friendly and has high thermal stability, but the proton conductivity is low. The Clay from Babakan Madang, which contained of SiO2 50% was expected to increase proton conductivity and improve the characteristics of the polymer membrane. Chitosan / PVA based membrane synthesis was carried out by adding clay weight variations of 0.3, 0.6 and 0.9 g. The spectra of membranes investigated by FT-IR Â confirmed the presence of functional groups from chitosan/PVA/clay. Morphological analysis using SEM showed that there were granules of clay dispersed on the membrane. The determination of membran conductivity using EIS Â showed the highest proton conductivity value was a membrane with the addition of 0.6 g clay, it was 6.96 x 10-7 S / cm. The membrane water swelling produced on the three membranes tended to be high, with the smallest value of 56.69% on the membrane with the addition of 0.9 grams of clay. The methanol uptake data found that the conductivity of membrane with the addition of 0.6 grams of clay was 346.11%.

EFISIENSI PENYERAPAN KULIT BUAH ATAP (Arenga pinnata) MENGIKAT ION-ION LOGAM KROMIUM DALAM LARUTAN Dian Arrisujaya
JURNAL SAINS NATURAL Vol. 4 No. 1 (2014): Sains Natural
Publisher : Universitas Nusa Bangsa

The Adsorption Efficiency of Atap Fruit Shell (Arenga pinnata Merr) on remove Chromium Metal Ions from aSolutionÂ Â Â Â Â Â Â Arenga pinnata fruit shell was dried, pulverized, and used for biosorption of Cr(III) and Cr(VI) from a solution. Column experiments were conducted to investigate the affected parameters of pH solution, particle size, chromium metal ion concentration, flow rate and amount of mass biosorbent. The maximum adsorption efficiency of metal ions Cr(III) and Cr(VI), was 47.79% and 41.47% respectively, initial metal ion concentrations of 75-100 mg/L at initial pH of 3 for Cr(VI) and initial pH of 4 for Cr(III) with the particlesize â‰¤180Î¼m and flow rate of 1-2 mL/min. Adsorption capacity will increase with increasing the number of mass biosorbent, however adsorption efficiency will decrease. An FTIR examination revealed changes between the natural and heavy metals-loaded biomaterial. Scanning electron micrograph (SEM) also revealed changes in the surface morphology of thebiomass as a result of heavy metal adsorption. Based on these results, it could be concluded that the Arenga pinnata was effective in removing heavy metal from aqueous solution and needed Â consideration for scaled-up apllication.Keywords : Arenga pinnata, heavy metals, biosorption, fourier transform infrared spectroscopy (FTIR), and scanning electron microscope (SEM)Â ABSTRAKÂ Â Â Â Â Â Â Kemampuan penyerapan kulit buah atap (Areng pinnata) terhadap ion logam Cr(III) dan Cr(VI) dalam larutan. Metoda kolom digunakan dalam proses biosorpsi dengan parameter yang mempengaruhi efisiensi penyerapan yaitu pH larutan, ukuran partikel, konsentrasi ion logam, laju alir dan massabiosorben. Efisiensipenyerapan maksimum ion logam Cr(III) dan Cr(VI) oleh kulit buah atap masing-masing adalah 47.79% dan 41.47 % dengan konsentrasi ion logam 75-100 mg/L pada pH 3 untuk Cr(VI) dan pH 4 untuk Cr(III), ukuran partikel biosorben â‰¤180Âµm serta pada laju alir 1-2 mL/menit.Efisiensi penyerapan akan meningkat dengan penambahan massa biosorben, namunkapasitas penyerapannya akan menurun. Analisis FTIR (Fourier Transform Infra Red)digunakan untuk mengetahui membandingkan biomaterial sebelum dan sesudah berikatan dengan ion-ion logam berat.perubahan gugus fungsi pada kulit buah atap dianalisis dengan FTIR (Fourier Transform Infra Red). Sedangkan untuk melihat perubahan permukaan pada kulit buah atap digunakan SEM (Scanning Electron Microscope).Berdasarkan hasil penelitian dapat disimpulkan bahwa bahan biomaterial kulit buah atap efektif dalam menyerap logam berat dalam larutan dan biomaterial ini dapat dipertimbangkan untuk skala yang lebih lanjut.Kata kunci : Buah atap, Arenga pinnata, logam massa, biosorpsi, fourier transform infrared spectroscopy (FTIR), dan scanning electron microscope (SEM)

UJI KANDUNGAN HIDROKSIMETILFURFURAL (HMF) SEBAGAI PARAMETER KUALITAS MADU Audi Rizki Koesprimadisari; Dian Arrisujaya; Resty Syafdaningsih
JURNAL SAINS NATURAL Vol. 6 No. 2 (2016): Sains Natural
Publisher : Universitas Nusa Bangsa

Hydroxymethylfurfural Content Test as Parameter Quality of HoneyÂ Â Â Â Â Â Â Â Â Â Â Determination hydroxymethylfurfural (HMF) levels in honey had been done refer to method in SNI 3545:2013.Â Average of the HMF levels is 64,72 mg/kg whereas SNI decided maximal limit was 50 mg/kg so honey quality is not good enough.Â To support testing result, calculation of reapeatabily with relative standard deviation (RSD) Horwitz and accuracy with % recovery was done. The result of reapeatabilty showed that analyst reapeatability was good because the relative standard deviation less than 2/3 RSD Horwitz.Â The result of accuracy was good because both treatment gave recovery 89,28 % and 106,43 %, which in the range of acceptance recovery test for analite concentration about 50 mg/kg.Keywords : HMF, Hydroxymethylfurfural, Honey, Quality of Honey , Reapeatability, Accuracy Â ABSTRAKPenentuan kadar hidroksimetilfurfural (HMF) pada madu telah dilakukan dengan metode yang mengacu pada SNI 3545:2013. Rata-rata hasil kandungan hidroksimetilfurfural adalah 64,72 mg/kg sedangkan batas maksimal yang ditetapkan SNI adalah 50 mg/kg sehingga kualitas contoh madu tersebut kurang baik.Â Untuk menunjang hasil pengujian, maka dilakukan perhitungan repeatabilitas dengan menggunakan Standar Baku Relatif (SBR) Horwitz dan perhitungan akurasi menggunakan % perolehan kembali. Hasil perhitungan repeatabilitas menunjukkan bahwa repeatabilitas analisis HMF baik karena nilai simpangan baku lebih kecil dari 2/3 SBR Horwitz.Â Perhitungan akurasi pun menunjukan hasil yang baik karena kedua perlakuan memberi hasil perolehan kembali sebesar 89,28 % dan 106,43 %, yang masuk kedalam batas keberterimaan uji perolehan kembali untuk konsentrasi analit dalam contoh sekitar 50 mg/kg.Kata Kunci : HMF, Hidroksimetilfurfural, Madu, Kualitas Madu, Reapitabilitas, Akurasi

ALTERNATIF METODE ANALISIS PENETAPAN KADAR ASAM MEFENAMAT DALAM PONSAMIC 500 mg TABLET SALUT SELAPUT Syahruni Syahruni; Dian Arrisujaya
JURNAL SAINS NATURAL Vol. 6 No. 1 (2016): Sains Natural
Publisher : Universitas Nusa Bangsa

Alternative of analytical methods of assay mefenamic acid in posamic 500 mg film coated tabletThe level of active substance is a requirement that must be met to ensure the quality of medicinal preparations, to carry out the assay of the active drug substance required a method that has been validated. The validity of alternative methods of assay in ponsamic mefenamic acid 500 mg film coated tablet (trade name) has been performed. Mefanat acid assay method using UV spectrophotometry, so that the limited availability of tools that can be resolved HPLC. The validity of alternative methods tested by the parameters of accuracy with standard addition method and parameters accuracy. Based on the results obtained by the value of the linearity was r equal to 0,999 and the percentage difference spectrophotometric method with HPLC method (% difference) at 0,16%. The results showed an alternative method of assay in ponsamic mefenamic acid 500 mg film coated tablet (trade name) using spectrophotometric methods, qualified acceptance in accordance with ISO / IEC 17025.Keywords: Mefenamic acid, validation method, UV spectrophotometryABSTRAKÂ Pemeriksaan kadar zat aktif merupakan persyaratan yang harus dipenuhi untuk menjamin kualitas sediaan obat, untuk melakukan penetapan kadar zat aktif obat dibutuhkan suatu metode yang telah divalidasi. Validitas metode alternatif penetapan kadar asam mefenamat dalam ponsamic 500 mg tablet salut selaput (nama dagang) telah dilakukan. Metode penentuan kadar asam mefanat menggunakan spektrofotometri UV, sehingga ketersediaan alat HPLC yang terbatas dapat teratasi. Validitas metode alternatif diuji berdasarkan parameter akurasi dengan metode penambahan baku dan parameter ketelitian. Berdasarkan hasil diperoleh nilai linearitas adalah r sebesar 0,999 danÂ persentase perbedaan metode spektrofotometri dengan metode HPLC (% Difference) sebesar 0,16%. Hasil penelitian menunjukkan metode alternatif penetapan kadar asam mefenamat dalam ponsamic 500 mg tablet salut selaput (nama dagang) menggunakan metode spektrofotometri, memenuhi syarat untuk diterima sesuai ISO/IEC 17025.Kata kunci : Asam mefenamat, Validasi metode, Spektrofotometri UV

KANDUNGAN KIMIA DARI LIMBAH LUMPUR INSTALASI PENGOLAHAN AIR MINUM UNTUK BETON GEOPOLIMER DENGAN XRF Nuryanti Nuryanti; Ridha Arizal; Dian Arrisujaya
JURNAL SAINS NATURAL Vol. 7 No. 2 (2017): Sains Natural
Publisher : Universitas Nusa Bangsa

Chemical Containt of Waste Water Installation of Drinking Water Treatment for Geopolymer Concrete by XRFÂ Preparation of geopolymer concrete from waste water installation of drinking water treatment (WIDWT) was manufactured in accordance with SNI. Specimen of size 5 x 5 x 5 cm cubes was used for the concretes. The mortar material consisted of binders, activator, aggregate (fine sand) and water (60% of aggregate and 40% of activators and binders). The composition of the activator and binder mixture were 1: 2; 1: 1,5; 1: 1; 1.5: 1; and 2: 1. The results of the comparison of binders A and B were 4.2: 1 and 6.5: 1. The binders were divided into 2 types: A binder (sludge of WIDWT was dried with oven at 105oC for 24 hours) and B Binder (sludge of WIDWT was dried by kiln at 650oC for 6 hours). The highest compressive strength test was 10.00 MPa on binder A with the ratio of activator and binder 1: 1 and Si: Al ratio (4.2: 1). Binder B with a compressive strength of 9.87 MPa with the ratio of activator and binder 1.5: 1 and Si: Al ratio (6.5: 1). Samples of IPAM sludge waste were tested by X-Ray Fluorescence (XRF), compressive strength testing of mortar geopolymer with Toni-Technik compressive strength test. The highest value of compressive strength appropriated to SNI 03-0691-1996 in class D which can be applied for City Park.Keywords: geopolymer, WIDWT, XRF, activator, binderÂ ABSTRAKÂ Pembuatan beton geopolimer dari limbah instalasi pengolahan air minum (IPAM) telah dilakukan. Beton geopolimer dibuat sesuai dengan SNI pembuatan mortar geopolimer dengan ukuran 5 x 5 x 5 cm. Bahan mortar terdiri dari binder, larutan aktivator dan agregat (pasir halus) serta air dengan perbandingan 60% (agregat) dan 40%(aktivator dan binder). Parameter variasi campuran aktivator dan binder yaitu 1:2; 1:1,5; 1:1; 1,5:1; dan 2:1. Binder dibagi menjadi 2 jenis yaitu Binder A (lumpur IPAM yang dikeringkan dengan oven pada suhu 105oC selama 24 jam) dan Binder B (lumpur IPAM yang dikeringkan dengan tanur pada suhu 650oC selama 6 jam). Hasil perbandingan binder A dan B adalah 4,2:1 dan 6,5:1. Hasil uji kuat tekan tertinggi sebesar 10,00 Mpa pada binder A dengan perbandingan aktivator dan binder 1:1 dengan perbandingan Si:Al (4,2:1). Binder B dengan kuat tekan 9,87 Mpa dengan perbandingan aktivator dan binder 1,5:1 dengan perbandingan Si:Al (6,5:1). Sampel limbah lumpur IPAM diuji dengan X-Ray Flourescene (XRF), pengujian kuat tekan mortar geopolimer dengan alat uji kuat tekan merk Toni-Technik. Nilai kuat tekan tertinggi memasuki persyaratan mutu SNI 03-0691-1996 pada kelas D yang bisa diaplikasikan untuk taman kota.Kata Kunci: geopolimer, IPAM, XRF, aktivator, binder

PRESIPITASI LOGAM BERAT LIMBAH CAIR LABORATORIUM MENGGUNAKAN NATRIUM SULFIDA DARI BELERANG ALAM Wisni Rona Anami; Mamay Maslahat; Dian Arrisujaya
JURNAL SAINS NATURAL Vol. 10 No. 2 (2020): Sains Natural
Publisher : Universitas Nusa Bangsa

Precipitation of Laboratory Wastewater Heavy Metals by Natural Sulphur Sodium SulfideÂ Sodium sulfide (Na2S) from natural sulfur has been used for heavy metal precipitation from laboratory wastewater. Heavy metals in laboratory wastewater include mercury (Hg), lead (Pb), chromium (Cr) and zinc (Zn). Initial laboratory wastewater testing was performed by measuring the initial pH and the concentration of heavy metals in the wastewater prior to precipitation using the atomic absorption spectrophotometer. Sulphide precipitation phase consists of variations in the concentration of NaOH, time, temperature, and volume of dissolving Na2S. Parameters for the efficiency of Hg, Pb, Zn and Cr heavy metal precipitation were the initial pH, concentration and rate of stirring of the solution. Results showed that the optimum precipitation efficiency for Zn is achieved by using 10 % Na2S solution with an efficiency of 97.93 %. The most significant reduction in Cr and Hg was the use of 20 % Na2S solution with a precipitation efficiency of 99.24 % and 99.76 % respectively. The optimal efficiency for Pb with a 30 % Na2S solution was 99.68 %. Natural sulfur can reduce the levels of heavy metals in laboratory wastewater by precipitation.Key words: Natural sulfur, Heavy metals, Precipitation, Sodium sulfide,Â ABSTRAKPresipitasi logam berat dari limbah cair laboratorium telah dilakukan dengan menggunakan natrium sulfida (Na2S) dari belerang alam. Logam berat yang terkandung dalam limbah cair laboratorium diantaranya adalah merkuri (Hg), timbal (Pb), kromium (Cr) dan seng (Zn). Pengujian awal limbah laboratorium dilakukan dengan mengukur pH awal dan kadarÂ logamÂ beratÂ yangÂ terdapatÂ dalamÂ limbah sebelum presipitasi menggunakan pH meter dan spektrofotometer serapan atom. Tahapan presipitasi limbah oleh sulfida meliputi pembuatan variasi konsentrasi NaOH, waktu, suhu, dan volume pelarutan Na2S. Parameter efisiensi presipitasi logam Hg, Pb, Zn, dan Cr meliputi pH, Konsentrasi dan Kecepatan pengadukan. HasilÂ penelitianÂ menunjukkanÂ efisiensi pengendapan optimal untuk logam Zn terdapat pada penggunaan larutan Na2S 10% dengan efisiensi 97,93%. Larutan Na2S 20% paling banyak menurunkan logam Cr dan Hg dengan efisiensi masing-masing sebesar 99,24% dan99,76%. Efisiensi optimal untuk logam Pb berada pada penggunaan larutan Na2S 30% dengan efisiensi 99,68%. BelerangÂ alamÂ mampuÂ menurunkan kadar logam berat dalam limbah cair laboratorium dengan metode presipitasi.Kata kunci: Belerang alam, Logam berat, Presipitasi, Natrium sulfida

BIJI BUAH BISBUL (Diospyros blancoi) SEBAGAI BIOSORBEN Cr(III) Nina Ariesta; Rifansyah Rifansyah; Dian Arrisujaya; Mamay Maslahat
JURNAL SAINS NATURAL Vol. 8 No. 2 (2018): Sains Natural
Publisher : Universitas Nusa Bangsa

Velvet Apple Fruit Seeds (Diospyros blancoi) as Biosorbent of Cr(III)Â Â Â Â Â Velvet Apple Fruit (Diospyros blancoi) has not been explored more in Indonesia. The purpose of research was to explore the use of Velvet Apple Fruit seeds as adsobent of Cr(III) in waste. Biosorbent of velvet apple fruit seeds in removing Cr (III) metal ions has been investigated using batch method. Several parameters were used to determine absorption optimum conditions such as solution pH, contact time and biosorbent dosage. Langmuir, Freundlich and Temkin isotherm models were used in determining biosorption equilibrium. FTIR and SEM-EDX were used to characterize the velvet apple fruit seeds biosorbent. The equilibrium adsorption isotherms showed the velvet apple fruit seeds biosorbent had a maximum adsorption capacity of 5.592 mg/g. The adsorption efficiency of Cr (III) ion by velvet apple fruit seeds was 81.78%. The results showed that velvet apple fruit seeds potentially as an alternative low-cost biosorbent for removing heavy metal ions in solution.Keywords: biosorption, heavy metals, alternative biosorbent, waste water treatmentABSTRAKÂ Â Â Â Â Buah bisbul di Indonesia belum tereksplor dengan baik potensinya. Tujuan penelitian adalah untuk megetahui potensi biji buah Bisbul sebagai adsorben logam Cr(III) pada limbah. Biosorben biji buah bisbul (Diospyros blancoi) dalam menyerap ion logam Cr(III) telah diteliti dengan menggunakan metode batch. Beberapa parameter digunakan untuk menentukan kondisi optimum penyerapan seperti pH larutan, waktu kontak dan dosis biosorben. Model isoterm Langmuir, Freundlich dan Temkin dipakai dalam menentukan kesetimbangan biosorpsi. FTIR dan SEM-EDX digunakan dalam mengkarakterisasi biosorben biji buah bisbul. Isoterm adsorpsi kesetimbangan menunjukkan biosorben biji buah bisbul mempunyai kapasitas adsorpsi maksimum 5,592 mg/g. Efisiensi penyerapan ion Cr(III) oleh biji buah bisbul mencapai 81,78%. Hasil penelitian menunjukkan bahwa biji buah bisbul berpotensi sebagai alternatif biosorben murah dalam menghilangkan ion logam berat dalam larutan.Kata kunci: biosorpsi, logam berat, alternatif biosorben, pengolahan air limbah

POTENSI SENYAWAAN NITROGEN DAN FOSFAT PADA PENCEMARAN SUNGAI CILIWUNG HULU KOTA BOGOR Indri Suswanti; RTM Sutamihardja; Dian Arrisujaya
JURNAL SAINS NATURAL Vol. 9 No. 1 (2019): Sains Natural
Publisher : Universitas Nusa Bangsa

Potential Of Phosphate and Nitrogen Compounds in Pollution of The Upper Ciliwung River in BogorÂ River is a habitat for various types of aquatic organisms that can provide an overview of the state of the river, such as the quality and quantity of ecological relationships that occur within it. Ciliwung is one of the rivers that flow to Jakarta via Puncak, Bogor Regency, Bogor City, Depok City and empties into the Bay of Jakarta. In 2015, the quality status of the upstream Ciliwung river had moderate polluted status. One parameter for reviewing water quality is nutrient content (phosphate and nitrogen). The presence of high nutrients can stimulate the growth of algae in waters that can harm the aquatic ecosystem. This study shows that there is a relations and positive relations with a correlation coefficient of 0.508 on the nitrogen and phosphate compounds in the upstream Ciliwung river water pollution. The concentration of nitrogen compounds is higher than that of phosphate.Keywords: Ciliwung, Nitrogen, Phosphates, River, Relations.Â ABSTRAKÂ Sungai merupakan suatu habitat bagi berbagai jenis organisme akuatik yang dapat memberikan gambaran mengenai keadaan sungai, seperti kualitas dan kuantitas dari hubungan ekologis yang terjadi didalamnya. Sungai Ciliwung merupakan salah satu sungai yang mengalir kearah Jakarta melalui Puncak, Kabupaten Bogor, Kota Bogor, Kota Depok dan bermuara ke Teluk Jakarta. Pada tahun 2015, status mutu sungai Ciliwung bagian hulu memiliki status tercemar sedang. Salah satu parameter peninjauan kualitas air adalah kandungan zat hara (fosfat dan nitrogen). Keberadaan zat hara yang tinggi dapat menstimulasi ledakkan pertumbuhan algae di perairan yang dapat merugikan ekosistem perairan. Penelitian ini menunjukkan bahwa adanya hubungan yang sedang dan positif dengan koefisien korelasi sebesar 0,508 terhadap senyawaan nitrogen dan fosfat pada pencemaran air sungai Ciliwung bagian hulu. Konsentrasi senyawaan nitrogen lebih tinggi dibandingkan dengan fosfat.Kata kunci: Ciliwung, Nitrogen, Fosfat, Hubungan, Sungai.

Preparation, Characterization and Phenol Adsorption of Mangifera kemanga Blume Seed Siti Hadiati Mardiah; Dian Arrisujaya; Devy Susanty; Nia Yuliani
JURNAL SAINS NATURAL Vol. 12 No. 3 (2022): Sains Natural
Publisher : Universitas Nusa Bangsa

The potential of Mangifera kemanga Blume., an inexpensive biosorbent, for removing of hazardous substances such as phenols from its aqueous solution has been studied. The authors used Scanning Electron Microscope (SEM), Fourier Transform Infrared (FTIR) Spectrometers, and quantification to study the morphology and characterization of Mangifera kemanga Blume. seeds (MKS) biomass, as well as batch experiments to determine the percentage of phenol removed when pH, contact period, biosorbent dosage, and phenol concentration were varied. The Langmuir, Freundlich, Temkin, and Dubininâ€“Radushkevich isotherm models had been used to interpret the experimental results. The optimal values found in our research correspond to a pH of 6 for an MKS dosage of 35 g/L and a contact time of 45 minutes for initial phenol concentrations ranging from 5 to 25 mg/L.Â The result indicated that MKS was a particularly successful adsorbent for phenol chemisorption from aqueous solution.Keywords:Â adsorption;Â Â endemic;Â Bogor;Â Mangifera kemanga;Â phenol

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