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All Journal Ensiklopedia of Journal Jurnal Teknologi Journal of Vocational Studies on Applied Research Jurnal Cendekia Ilmiah
Adelina, Dina
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Effect of Sodium Hydroxide Treatment on Adsorption of Methylene Blue Based on Cellulose Nano Crystals Mustikaningrum, Mega; Adelina, Dina; Indrawati Sawali, Fikrah Dian; Afandy, Moh Azhar
Journal of Vocational Studies on Applied Research 2024: JVSAR, Volume 6 Issue 1 Year 2024 (April 2024)
Publisher : Vocational College of Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jvsar.v6i1.22505

Abstract

Methylene blue is one of the dye wastes that dissolve in the aquatic environment that cannot be directly degraded by the environment. If the quantity of this waste is large, it will become a compound that is toxic to the aquatic environment. One of the modern methods used to process this dye waste is adsorption. The adsorption method is a method of binding compounds with the help of adsorbents. One of the renewable adsorbent technologies comes from cellulose. Cellulose is often used because it has active groups that are quite effective in binding certain compounds. In this study, cellulose IV was produced, called nano cellulose crystals. Cellulose generally consists of amorphous and crystalline parts. The cellulose produced is hydrolyzed with sulfuric acid to remove the amorphous part so that only crystalline cellulose is obtained, followed by the help of ultrasonic waves to break the size into a nano form which is expected to have a large surface area. As a result of the hydrolysis stage, the nano cellulose crystals produced have sulfate groups that can bind methylene blue which when dissolved in water becomes cationic. This force is called electrostatic force. Some important stages of cellulose nanocrystal production are alkaline treatment, bleaching, hydrolysis, sonication, and freeze-drying. This study focuses on the effect of NaOH concentration used in alkaline treatment. NaOH in this case functions to dissolve impurities such as hemicellulose and lignin in a biomass. Removal of hemicellulose and lignin greatly affects the yield of cellulose produced. Based on the results of the study using 3,4, and 5% NaOH produced cellulose percentages of 38.7121; 39.7949, and 39.9138%, respectively. Cellulose content ultimately affects the number of active groups that bind methylene blue. The adsorption study evidences this obtained the percentage of removal at each concentration of 67.685; 70.837 and 71.823%. Another objective of this study was also to get the constant value of the extraction rate at each NaOH concentration used in the adsorption process. The values obtained were 0.0029; 0.0032 and 0.0039 m/minute at each NaOH concentration used during the alkaline treatment process.
Tannin Test on Celery Leaves (Apium graveolens L.) Using UV-Vis Spectrophotometry Method as an Active Ingredient in Hand Sanitizer Adelina, Dina; Adlin, Irman Ansari; S, Agustina Dyah; Junita, Rusnia
Jurnal Teknologi Vol 25, No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v25i2.6845

Abstract

This study looks into whether celery leaves (Apium graveolens L.) could be used as a source of tannins for making hand sanitizer. This study attempts to find a natural antibacterial agent that can be used instead of hand sanitizers, which are in high demand during the COVID-19 pandemic. The goal was to measure the amount of tannins in celery leaves and see how well they work in hand sanitizers. We used the UV-Vis spectrophotometry approach to find out how much tannin there was, using quercetin as a benchmark. We used maceration with 96% ethanol to get the tannins out, and then we distilled them. The results showed that there was a strong linear association between absorbance and tannin concentration. The average tannin content was 0.1397 mg/g. Then, the celery leaf extract was added to hand sanitizer gels. Successful organoleptic testing showed that the composition was physically stable and had antibacterial properties. This study shows how to use local plant materials, such celery leaves, to make hand sanitizers that are good for the environment and work well. This is a better option than chemical-based solutions. The results show that this method could work on other plants with similar traits.
Pengolahan Limbah Cair Industri Beauty dan Personal Care Menggunakan Metode Koagulasi dan Flokulasi Hakim, Rusnia Junita; Adelina, Dina; Ismet, Rhahmasari; Muttaqim, Maulana
Jurnal Teknologi Vol 25, No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v25i2.7018

Abstract

The beauty and personal care industry generates wastewater that poses a potential threat to the environment if not properly treated. As a small-scale industry, there is a need for an efficient wastewater treatment technology that requires minimal cost and land area. This study aims to analyze the characteristics of wastewater from the industry and evaluate the effectiveness of coagulation and flocculation processes in reducing pollutant levels. The jar test method was employed using varying doses of coagulant (PAC) and flocculant (anionic polymer) at concentrations of 60, 80, and 100 ppm for PAC, and 1–3 ppm for the polymer. Initial test results indicated that the parameters for TDS, TSS, pH, EC, and turbidity did not meet the effluent quality standards set by the Indonesian Ministry of Environment Regulation No. 5 of 2014. The optimum dosage was found to be 80 ppm PAC combined with 3 ppm anionic polymer, which reduced TSS from 1482 mg/L to 83 mg/L and turbidity from 3120 NTU to 20 NTU. The best reduction in EC was achieved with 100 ppm PAC and 3 ppm polymer, lowering EC from 3210 µS/cm to 399 µS/cm. All parameters, except for TDS, complied with the established effluent quality standards.
KARAKTERISASI ANTIOKSIDAN EKSTRAK DAUN SELEDRI (APIUM GRAVEOLENS) DAN PENETAPAN KADAR FLAVONOID TOTAL DENGAN METODE MASERASI Ismet, Rhahmasari; Junita Hakim, Rusnia; Indrawati, Wiwik; Adelina, Dina; Dyah Setyowati, Agustina; Jufrinaldi, Jufrinaldi; Indrawijaya, Budhi; Ansari Adlin, Irman; Lutviyana Sari, Indri; Marlina, Tina
Ensiklopedia of Journal Vol 8, No 2 (2026): Vol. 8 No. 2 Edisi 1 Januari 2026
Publisher : Lembaga Penelitian dan Penerbitan Hasil Penelitian Ensiklopedia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33559/eoj.v8i2.3552

Abstract

Hypertension is a chronic medical condition characterized by elevated blood pressure levels exceeding the normal threshold (≥120/80 mmHg), which can lead to damage in vital organs such as the heart, kidneys, brain, and blood vessels. One promising alternative treatment involves the use of herbal remedies, such as celery leaves (Apium graveolens L), which are known to contain various vitamins, minerals, and antioxidant compounds including beta-carotene, lutein, zeaxanthin, and flavonoids such as luteolin and apigenin—both of which are recognized for their antihypertensive properties. This study aims to characterize the antioxidant activity and determine the flavonoid content of celery leaf extract using the maceration method. Extraction was conducted with varying ratios of solvent to leaf powder (1:10, 1:15, and 1:20) and different maceration durations (24, 36, and 48 hours). The best yield was obtained at a ratio of 1:15 with 24 hours of maceration, resulting in an extract with a pH of 6, density of 0.869 g/mL, and viscosity of 15.75 cP. Antioxidant activity analysis revealed an IC₅₀ value of 66.3774 mg/mL, while total flavonoid content reached 17.97 mg/g. These findings suggest that celery leaves possess potential as a natural antihypertensive agent due to their antioxidant activity and flavonoid content.Keywords: Hypertension, Celery Leaves, Antioxidants, Flavonoids and Maceration
Penurunan Kadar COD (Chemical Oxygen Demand) Air Sungai Cisadane Menggunakan Metode Fenton Adelina, Dina; Indrawati, Wiwik; Filosa, Aminudin; Hakim, Rusnia Junisa; S, Agustina Dyah; Ismet, Rhahmasari; Yullia, Nuke; Lita, Nurul
Jurnal Teknologi Vol 26, No 1 (2026): April 2026
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v26i1.8810

Abstract

The Cisadane River is one of the main water resources in Tangerang and surrounding areas. However, its water quality has declined due to domestic and industrial pollution, which increases the Chemical Oxygen Demand (COD) level. This study aimed to evaluate the effectiveness of the Fenton method in reducing COD levels in Cisadane River water and to determine the optimum reaction time for the treatment process. The experiment was conducted using 100 mL of river water sample treated with Fenton reagent consisting of FeSO₄ 0.3 M and H₂O₂ 0.8 M. The treatment was carried out at reaction times of 60, 120, 180, and 240 minutes, and COD levels were analyzed using a photometer. The results showed that the initial COD concentration of 495 mg/L decreased to 290 mg/L after 60 minutes, 195 mg/L after 120 minutes, 145 mg/L after 180 minutes, and 95 mg/L after 240 minutes. The highest COD removal efficiency was achieved at 240 minutes, with a reduction of 80.81%, and the final COD concentration met the domestic wastewater quality standard of 100 mg/L. In conclusion, the Fenton method was effective in reducing COD levels in Cisadane River water, with the optimum treatment time obtained at 240 minutes.
Analisa Kadar Antosianin pada Bunga Telang sebagai Antibakteri dengan Metode Maserasi Hakim, Rusnia Junita; Adelina, Dina; Mubarok, Zakki Rosmi; Yolandari, Radita Mellya; Romli, Khana Aulia
Jurnal Teknologi Vol 26, No 1 (2026): April 2026
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v26i1.8739

Abstract

Anthocyanins are natural flavonoid pigments widely recognized for their biological activities, including antibacterial properties. Butterfly pea (Clitoria ternatea L.) flowers are known to contain significant levels of anthocyanins; however, the influence of extraction parameters on anthocyanin yield and their correlation with antibacterial activity remains limited. This study aimed to evaluate the effect of ethanol concentration (75%, 80%, and 90%) and maceration time (8, 16, and 24 hours) on total anthocyanin content of fresh butterfly pea flowers and to assess their antibacterial activity. Anthocyanin content was determined using the pH differential method with UV–Vis spectrophotometry at 510 nm and 700 nm. Extraction yield and physicochemical characteristics (pH, viscosity, and density) were also analyzed. The highest extraction yield (1.64%) was obtained using 75% ethanol for 8 hours, while the highest anthocyanin content (1.071 mg/100 g) was achieved with 80% ethanol for 8 hours, corresponding to absorbance values of 1.3425 (pH 1.0) and 1.3365 (pH 4.5). These results indicate that solvent polarity significantly influences anthocyanin extraction efficiency. However, antibacterial testing against Staphylococcus sp. showed only limited inhibition zones under all treatment conditions, suggesting that the extract concentration did not reach the minimum inhibitory concentration (MIC). Overall, while extraction parameters significantly affected anthocyanin content, increased anthocyanin levels did not directly correspond to significant antibacterial activity.
Pengaruh Rasio Berat Zeolit dan Poly Acrilyc Acid (PAA), Waktu Serta Suhu Pada Proses Coating Terhadap Sifat Karakteristik Pupuk Slow Release Fertilizer (SRF) Adelina, Dina
J-CEKI : Jurnal Cendekia Ilmiah Vol. 3 No. 6: Oktober 2024
Publisher : CV. ULIL ALBAB CORP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56799/jceki.v3i6.5574

Abstract

The use of slow-release or controlled-release fertilizers (SRF) is one effective approach to reducing nutrient loss. These fertilizers are designed to release nutrients at a controlled rate and time, aligned with the plant's needs. The nutrient release mechanism can be optimized by manipulating the physical or chemical properties of the fertilizer, involving processes such as diffusion, degradation, and hydrolysis. This study aims to analyze the effects of the mass ratio of zeolite and polyacrylic acid (PAA), as well as the influence of time and temperature during the coating process, on the characteristics of slow-release fertilizers (SRF). The goal is to produce SRF that minimizes negative environmental impacts and reduces costs compared to conventional fertilizers. By adjusting these parameters, it is expected that the resulting SRF will be more effective in gradually supplying nutrients to plants and offer a more economical solution than conventional fertilizers, which tend to deplete quickly or are lost through leaching.
Co-Authors Adlin, Irman Ansari Ansari Adlin, Irman Dyah Setyowati, Agustina Fikrah Dian Indrawati Sawali Filosa, Aminudin Hakim, Rusnia Junisa Hakim, Rusnia Junita Indrawijaya, Budhi Ismet, Rhahmasari Jufrinaldi, Jufrinaldi Junita Hakim, Rusnia Junita, Rusnia Lita, Nurul Lutviyana Sari, Indri Moh. Azhar Afandy Mubarok, Zakki Rosmi Mustikaningrum, Mega Muttaqim, Maulana Romli, Khana Aulia S, Agustina Dyah Tina Marlina Wiwik Indrawati, Wiwik Yolandari, Radita Mellya Yullia, Nuke