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All Journal Jurnal Periodic Jurusan Kimia UNP Eksakta : Berkala Ilmiah Bidang MIPA
Pernadi, Niza Lian
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Pemanfaatan Karbon dari Sabut Buah Nipah (Nypa fruticans) untuk Penjernihan Minyak Jelantah Istiqamah, Siti Sarah; Mawardi, Mawardi; Khair, Miftahul; Rahmi, Maulidia Arsyta; Novela, Riana; Pernadi, Niza Lian; Nizar, Umar Kalmar
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.v13i2.125419

Abstract

Along with the increase in the food and household industries, demand for raw materials for cooking oil continues to increase, causing shortages and increasing prices of cooking oil. This causes cooking oil to be used repeatedly. Cooking oil that has been used repeatedly is called used cooking oil which contains many carcinogenic compounds that can be harmful to health. Therefore, this research aims to purify used cooking oil using palm fiber carbon to improve the quality of used cooking oil. Nipa palm fiber contains hemicellulose and cellulose so it has the potential to be used as a carbon source using the calcination method and carrying out proximate tests such as ash content, vapor content and bound carbon content. Next, it is applied in the process of purifying used cooking oil using the adsorption method. After that, several properties of used cooking oil were tested, such as density, flow rate, acid number and saponification number. The results obtained in this research for the proximate test of palm fruit fiber at a temperature of 250-400℃ have met the SNI 06-3730-2021 standard. Nypa palm fiber carbon in used cooking oil was proven to reduce the density value to 0.81 g/mL, flow rate 4.17 mL/s, acid number 3.6 mg/KOH and saponification value 427 mg/KOH.
Analisis Sifat Fisikokimia dari Beberapa Minyak Kemasan Hasil Penggorengan Tempe Farhan, Muhammad; Azhar, Minda; Etika, Sri Benti; Pernadi, Niza Lian; Sabrina, Joya; Rahmi, Fathaniah Raviqa; Nizar, Umar Kalmar
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124341

Abstract

Cooking oil is one of the staple ingredients for cooking which is very popular in Indonesian society. The cooking oil most often used for cooking by the community is palm oil, because it is easy to obtain and has a relatively affordable price. But on the other hand cooking oil which is repeatedly heated at high temperatures can have harmful effects on the body, especially with the presence of solutes in the ingredients that are fried. This study aims to determine the quality of palm oil from tempe frying which contains vegetable protein for 1 hour at 160 C. The cooking oil is heated for 1 hour then put in the tempe and removed after it is cooked, after 1 hour the oil is cooled and its quality is tested by testing the density, flow rate, acid number and saponification number. The results showed that after cooking for 1 hour testing the tempe frying oil, the quality of the oil based on the quality standard value was bimoli, followed by pure essence and fortune. The quality of bimoli oil from tempe frying for one hour was with a density of 0.9233 gr/mL, a flow rate of 3.805 mL/s, an acid number of 8.0536 mgKOH/g and a saponification number of 16.091 mgKOH/g.
Pemanfaatan Karbon dari Bunga Cemara Laut (Casuarina equisetifolia) untuk Penjernihan Minyak Jelantah Rahmi, Maulidia Arsyta; Putra, Ananda; Sari, Trisna Kumala; Pernadi, Niza Lian; Istiqamah, Siti Sarah; Nizar, Umar Kalmar
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124261

Abstract

Used cooking oil is waste oil that has been used many times and is also known as used cooking oil which contains food residue and is a pollutant to the environment. This oil contains free fatty acids, carbonyl compounds, and peroxides. The content contained in used cooking oil can cause poisoning in humans and cause pollution to the environment. This study aims to clarify used cooking oil so that it can be reused. Carbon from sea pine flowers is used as a solution to clarify used cooking oil in this study. BCL carbon was obtained using the calcination method at various temperatures of 250oC, 300oC, 350oC, and 400oC. The resulting carbon is then subjected to a proximate test. Based on the results of the proximate test, the results obtained were in accordance with the SNI 06-3730-1995 standard with the optimum value obtained at 350oC calcination temperature. The clarification of used cooking oil is carried out by mixing used cooking oil and carbon as a result of calcination at 350ºC. Variations in the mass of carbon used are 1,3 and 5 grams. The results showed that the carbon of sea cypress flowers can be used as an absorbent for cleaning used cooking oil which can adsorb its fatty acid content. The optimum absorbent of this study was the 5g CBCL sample. This is evidenced by the results of the analysis that has been carried out with the lowest density value of 0.83 g/mL, the highest flow rate value of 4.312 mL/s and the lowest acid number value of 0.5 mg KOH/g.
Analisa Beberapa Sifat Fisikokimia dari Minyak Goreng Kemasan Hasil Penggorengan dengan Lemak Sapi Rahmi, Fathaniah Raviqa; Hardeli, Hardeli; Nasra, Edi; Pernadi, Niza Lian; Sabrina, Joya; Farhan, Muhammad; Nizar, Umar Kalmar
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.v13i2.125466

Abstract

Palm oil is one of the vegetable oils with the highest concentration of contaminants compared to other oils. The main components of palm oil are triglycerides which account for more than 95% and other components such as monoglycerides, diglycerides, free fatty acids, phosphatides and sterols. Beef in 100 grams contains fewer calories (498 kj), total fat (2.8 g), unsaturated fat (0.448 g), saturated fat (1.149 g) and cholesterol (50 mg) than goat meat of the same size .The nutritional composition of beef includes 18.8 grams of protein, 66.0 grams of water and 14.0 grams of fat. The aim of this research is to determine the physicochemical properties of packaged cooking oil produced from frying beef fat at certain temperatures and times. The physicochemical properties of the oil determined include density, flow rate, acidity index and saponification index. Bimoli cooking oil resulting from the frying process has a density value of 0.9205 gr/ml, a flow rate of 2.949 ml/s, an acid number of 3.06939 mgKOH/gr and a saponification index of 16.71005 mgKOH/gr. The results of this research indicate that the results of testing the physicochemical properties of packaged cooking oil have better values compared to the results of testing beef tallow cooking oil.
Pemanfaatan Karbon dari Kulit Buah Kelor (Moringa oleifera) untuk Penjernihan Minyak Jelantah Novela, Riana; Zainul, Rahadian; Kurniawati, Desy; Pernadi, Niza Lian; Rahmi, Maulidia Arsyta; Istiqamah, Siti Sarah; Nizar, Umar Kalmar
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124150

Abstract

The high demand for cooking oil causes scarcity and increases the price of cooking oil in the market. Despite the scarcity, people still use it by heating it repeatedly. Cooking oil that has been used repeatedly is called used cooking oil which contains saturated fatty acids which will have a negative impact on health if reused. Therefore, this study aims to clarify used cooking oil by using carbon from moringa peels to improve the quality of used cooking oil. Moringa fruit peel contains cellulose and hemicellulose so that it can be used as a carbon source using the calcination method and tested for approximation such as tests for ash content, vapor content and bound carbon. Furthermore, carbon is applied in the clarification of used cooking oil by adsorption method. After the used cooking oil has been clarified, the properties of the used cooking oil are tested, such as density, flow rate, acid number and saponification number. The result of this research is that the resulting Moringa peel carbon at 250 - 350oC complies with the SNI 06-3730-2021 standard. The application of Moringa peel carbon in used cooking oil has been shown to reduce the density value to 0.886 g/mL, an acid number of 4.476 mg/KOH, and succeeded in increasing the value of the flow rate to 0.735 and the saponification number to 351.751 mg/KOH.
Penjernihan Minyak Jelantah dengan Menggunakan Terong (Solanum melongena) Rizki, Suci Yulia; Hardeli, Hardeli; Ningsih, Sherly Kasuma Warda; Pernadi, Niza Lian; Sidiq, Aqil Marsya; Nizar, Umar Kalmar
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.v13i2.124544

Abstract

Used cooking oil is used oil that has been heated repeatedly with high heat. At high heating, the triglycerides contained in used cooking oil can be hydrolyzed into free fatty acids. In addition, it can form free radical compounds that can cause serious diseases such as cancer. Therefore, this study aims to clarify used cooking oil using eggplant (Solanum melongena). Eggplant is rich in beneficial ingredients such as high levels of flavonoids, phenolics and antioxidants. Eggplant can be used as an adsorbent that can clarify used cooking oil. This study used the method of heating used cooking oil at a temperature of 160⁰C and the mass variations of the eggplant were 5, 10 and 15 grams. The result of this study is that the use of 10 grams of eggplant is proven to clear used cooking oil. which was previously blackish brown underwent degradation of light brown color accompanied by a decrease in the density value to 0.94 g/mL, the acid number to 2.08 mg/KOH, and an increase in the flow rate value to 0.2987 ml/s, a saponification number of 80.17 mg KOH in used cooking oil.
Analisis Beberapa Sifat Fisikokimia dari Minyak Goreng Kemasan Hasil Penggorengan Ubi Jalar (Ipomea batatas) Sabrina, Joya; Dewata, Indang; Oktavia, Budhi; Pernadi, Niza Lian; Farhan, Muhammad; Rahmi, Fathaniah Raviqa; Nizar, Umar Kalmar
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.v13i2.124356

Abstract

Cooking oil is a biological mixture derived from plants and consists of a mixture of esters derived from glycerol with fatty acids. The most commonly used cooking oil for cooking by the community is palm oil, because it is easy to obtain and the price is relatively affordable. The main composition of palm oil is triglycerides more than 95% and several other components such as monoglycerides, diglycerides, free fatty acids, phosphatides and sterols. Sweet Potatoes have the main content, namely carbohydrates. In addition to carbohydrates, there are other ingredients such as protein and fat. The purpose of this study was to determine the physicochemical properties of packaged cooking oil from sweet potato frying at a certain time and temperature and to use packaged cooking oil without heating as a comparison. The physicochemical properties of the oil determined include density, flow rate, acid number and saponification number. Bimoli cooking oil from sweet potato frying has a density value of 0.9369 gr/ml, a flow rate of 3.662 ml/s, an acid number of 8.143 mgKOH/gr and a saponification number of 14.305 mgKOH/gr. The results of this study indicate that the results of the physicochemical properties test of packaged cooking oil have a better value than the test results of sweet potato frying oil.
Pengaruh Penjernihan Minyak Jelantah Menggunakan Nasi Terhadap Sifat Fisikokimia Minyak Sidiq, Aqil Marsya; Putra, Ananda; Amelia, Fitri; Pernadi, Niza Lian; Rizki, Suci Yulia; Nizar, Umar Kalmar
Periodic Vol 13, No 1 (2024): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v13i1.124355

Abstract

The increased demand for cooking oil has led to a corresponding rise in its consumption. To address this situation, individuals often resort to reusing cooking oil, despite its unsuitability for consumption. The repeated use of cooking oil at high temperatures induces the hydrolysis of triglycerides into free fatty acids. Consequently, this research aims to refine the quality of used cooking oil through its purification using rice, rendering it suitable for reuse. Rice is rich in amylose and amylopectin, both of which feature -OH groups that can interact with -COOH groups present in free fatty acids within used cooking oil. In the process of used cooking oil purification, rice serves as an adsorbent. The findings of this study exhibit an improvement with an increase in the amount of rice used in the purification of cooking oil. Furthermore, the utilization of rice as an adsorbent during the cooking oil purification process leads to a reduction in density to 0.9454 g/mL, a decline in the acid number to 2.0797 mg KOH/g, an augmentation of flow rate to 0.3141 mL/s, and an elevation of the hoarding number to 77.1842 mg KOH/g within the used cooking oil.
Studi Pengaruh Rasio Mol Silika terhadap Titania dalam Pembentukan Koordinasi Titanium Tetrahedral dalam Silika-Titania dengan Metoda Solid State Yuliani, Amelinda; Veronita, Silvi; Pernadi, Niza Lian; Nizar, Umar Kalmar
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.v12i3.117884

Abstract

Titanium tetrahedral coordination shows high activity as a catalyst so that it attracts attention to be researched and developed. In this study, tetrahedral titanium coordination was studied and produced through the Si-O-Ti bond between solid silica precursors and solid titania. Both precursors are mixed in toluene and sonicated for homogeneity. The resulted mixture was calcined at a temperature of 400oC for 8 hours and then characterized with DRS UV-Vis, XRD and FESEM. The results showed that the synthesis sample experienced an increase in tetrahedral titanium fraction from 27% to almost 34%. Characterization with XRD indicates that the diffraction pattern of the resulting sample is very similar to the titania precursor with a crystalline pattern with an anatase and rutile phases. The morphology of the resulting sample showed that silica samples that did not react with titania experienced agglomeration
Biosorption of Methylene Orange Dye using Langsat Shell by Batch Method Kurniawati, Desy; Lestari, Intan; Tarmizi, Fadhilah; Pernadi, Niza Lian; Iqbal, Anwar
EKSAKTA: Berkala Ilmiah Bidang MIPA Vol. 24 No. 03 (2023): Eksakta : Berkala Ilmiah Bidang MIPA (E-ISSN : 2549-7464)
Publisher : Faculty of Mathematics and Natural Sciences (FMIPA), Universitas Negeri Padang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/eksakta/vol23-iss03/419

Abstract

Liquid waste is a major problem in the textile industry environment that has the most widespread influence because physical and aquatic characteristics can have a negative impact on waters. Most of the liquid waste produced by batik comes from the dyeing process and environmental pollution. If it is disposed of directly into the environment without prior processing, the environment has a limited ability to degrade dyestuffs. One alternative method to remove the dye in water contaminated with methyl orange is biosorption using a cheap and easily available biosorbent, such as a langsat shell. This study used a batch method with variations in pH, solution concentration, particle size, stirring speed, and contact time. The results of each variation carried out obtained the optimum conditions for the absorption of Methyl Orange, namely at: pH 4, concentration 150 mg/L, and particle size 150 μm. The adsorption isotherm study was carried out, the Langmuir equation yielded a regression coefficient value that was close to one (R2 = 0.9964) so that it could be said to be better with a maximum absorption capacity of 3.1164 mg/g
Co-Authors Budhi Oktavia Desy Kurniawati Edi Nasra Fitri Amelia Hapzi Ali Hardeli Hardeli Indang Dewata Intan Lestari Iqbal, Anwar Istiqamah, Siti Sarah Miftahul Khair Minda Azhar Muhammad Farhan Nizar, Umar Kalmar Novela, Riana Putra, Ananda Rahadian Zainul Rahmi, Fathaniah Raviqa Rahmi, Maulidia Arsyta Rizki, Suci Yulia Sabrina, Joya Sari, Trisna Kumala Sherly Kasuma Warda Ningsih Sidiq, Aqil Marsya Sri Benti Etika Tarmizi, Fadhilah Veronita, Silvi Yuliani, Amelinda