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ERWAN ADI SAPUTRO
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International Journal of Eco-Innovation in Science and Engineering (IJEISE)
Published by Universitas Pembangunan Nasional Veteran Jawa Timur
ISSN : -     EISSN : 27218775     DOI : https://doi.org/10.33005/ijeise
Core Subject : Science, Engineering,
Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Engineering Industrial & Manufacturing Engineering Mechanical Engineering
International Journal of Eco-Innovation in Science and Engineering (IJEISE) covers all topics of Eco-Innovation in Science and technology related research from Chemical Engineering, Environment Engineering, Civil engineering, Industrial Engineering, Food Technology, Agrotechnology and others science and engineering field. IJEISE publish 2x a year (May and November).
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 6 Documents
 1 
Search results for , issue "Vol. 2 No. 2 (2021): IJEISE" : 6 Documents clear
REDUCING PEROXIDE VALUE IN USED COOKING OIL USING AMPO AS AN ADSORBENT S. Susilowati; Khanza Lolita Astya; Ulinnuha Syaiful Bachri
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 2 No. 2 (2021): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

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Abstract

Cooking oil can only be used two or three times, more than that the oil is deemed unsuitable and can harm our health. The reason is, every time the cooking oil is used for frying, an oxidation reaction that is triggered by heat occured and causes the chemical chain bonds in cooking oil become unstable and forms hydroperoxides. The hydroperoxide found in used cooking oil increases the peroxide value. In which, the suitability of cooking oil is based on the peroxide value. In order to reduce the peroxide value in used cooking oil, in this study, Ampo is used as an adsorbent to adsorb the peroxide compound. The procedure used in this study includes a preliminary analysis of the used cooking oil to determine the initial peroxide value. After that, the Ampo adsorbent is activated with 1N Citric Acid to open the pores on the surface of the Ampo. Activated Ampo will then be mixed into 200 ml of used cooking oil with a magnetic stirrer with a stirring speed of 300 rpm and with a temperature of 50oC. The adsorption process was carried out by varying the mass variables of Ampo into 70, 75, 80, 85, and 90 grams, and stirring time of 30, 60, 90, 120, and 150 minutes. After the adsorption process is completed, the cooking oil that has been filtered by the Ampo adsorbent will be analyzed to get the final peroxide value. By knowing the peroxide value before and after the adsorption process, the adsorption isotherm can be calculated. The adsorption process of used cooking oil with Ampo adsorbent proved to reduce the peroxide value, in which stirring times and adsorbent masses were the influential variables in the study. The best result was obtained with 60 minutes stirring time and mass of 75 grams. This condition provided a peroxide value of 0.99 meq/kg, which means that there was a decrease in the peroxide value by 93%. This result is in accordance with the provisions of SNI 3741-2013, with a maximum peroxide value of 10 meq/kg. The maximum adsorption capacity in this study was obtained from the Freundlich equation of 14.6487 mg/gram.
Time Effect on Aerobic Composting Method for Temperature and pH from Brem Waste Kindriari Nurma Wahyusi; Ummi Muashomah; Annisa Bella; Nur Aini Fauziyah
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 2 No. 2 (2021): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

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Abstract

This research addressed to utilize brem waste to be compost with the addition of M-Bio activator using aerobic composting method. Brem waste was collected from brem industry, UD. Tongkat Mas, located in the Caruban, Madiun, East Java. The main material was brem waste (1 kg) with additional materials of eggshell flour (300 g) and M-Bio activator. Here, we considered every time and the pH was measured every time interval. This brem waste was included in organic waste. This organic waste had a high water content so it can easily decompose. The temperature of compost increased as addition of M-Bio activator. The best properties was shown by the compost III that met with the standards SNI 19-7030-2004.
The Utilization of Lapindo Mud Waste for Aluminium Sulfate Production Lucky Indrati Utami; Tahan Simamora Rizaldi; Kindriari Nurma Wahyusi; Reva Edra Nugraha
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 2 No. 2 (2021): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

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Abstract

The Lapindo mudflow disaster in East Java Province, or also known as LUSI (LUmpur “mud”-SIdoarjo) has become spectacular longest ongoing disaster in recent memory since 2006. The utilization of volcanic Lapindo mud could be the promising solution to prevent further environmental damage. The chemical composition of Lapindo mud contained of 44.1% SiO2, 23.7% Fe2O3, 13% Al2O3, 7.02% CaO, 5.35% MoO3, 2.53% K2O, 1.84% TiO2 and 0.7% Na2O. Aluminium sulfate (Al2(SO4)3) or “alum” have been widely used as coagulation compound in water treatment, paper and textiles industry. Aluminium sulfate can be synthesized from aluminium oxide (Al2O3) from Lapindo mud with acidic solutions (H2SO4). The aim of this work was to synthesize aluminum sulfate from Lapindo mud by using extraction process. The impact of H2SO4 concentration and heating time to the production of aluminium sulfate have been investigated. The results showed that the aluminium sulfate can be synthesized from Lapindo mud by using H2SO4. Based on XRF analysis, the variation of heating time and H2SO4 concentration affect the aluminium sulfate conversion. The increasing of heating time and H2SO4 concentration directly enhance the conversion until reach the optimum condition. The optimum condition for aluminium sulfate synthesis from Lapindo mud (75.78% conversion) was found to be 90 min for heating time with H2SO4 concentration of 80%.
Study of Proportion of Milk with Lesser Yam Filtrate and Starter Concentration for Producing Synbiotic Yoghurt Rosida; S.S. Santi; F.R. Rohman
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 2 No. 2 (2021): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

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Abstract

This study aimed to determine the effect of the proportion of cow's milk with lesser yam filtrate andstarter concentration on the characteristics of synbiotic yoghurt. The research used a factorial completely randomized design (CRD) with two factors, factor I was the proportion of cow's milk with lesser yam filtrate (100:0; 60:40; 50:50; 40:60; 0:100) and factor II was the starter cocentration (3%, 5%, 7%). The data obtained were analyzed using analysis of variant (ANOVA) and if there was a significant difference between treatments, then continued with Duncan's test at the 5% level. Synbiotic yoghurt from proportion of cow's milk with lesser yam filtrate (50:50) and 5% starter concentration was the best treatment with total Lactic Acid Bacteria of 7.23 log CFU/ml; pH 4.20; total dietary fiber 3.05%, soluble fiber content 1.3%, inulin content 1.2%, fat content 0.41% and soluble protein content 2.66% with an average texture preference score of 6.13 (like much); taste core 6.02 (like much) and smell score5.20 (like).
Influence of Enzyme Concentration and Hydrolysis Time on Soluble Protein Content of Protein Hydrolysate Prepared from Apple Snail (Pila ampullaceal) Andre Yusuf Trisna Putra; Dedin Finatsiyatull Rosida; Anugerah Dany Priyanto
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 2 No. 2 (2021): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

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Abstract

The objective of this study was to evaluate soluble protein content of protein hydrolysates obtained by enzymatic hydrolysis of apple snail using a trypsin enzyme. Apple snail were collected from traditional market at Pabean-Sidoarjo. Trypsin enzyme was used in enzymatic hydrolysis. The two variables, enzyme/substrate (E/S) ( 0.01, 0.05, 0.1) ratio and hydrolysis time (3 h, 6 h, 9 h, 12 h, 15 h, 18 h) and was used to produce the apple snail hydrolysate. The result showed that soluble protein content was about 2.3%-4.52%. The increase E/S ratio and hydrolysis time, the higher soluble protein content values was. The highest total soluble protein was achieved E/S 0.1 ratio at 12 h, 4.52%. But, after 12 h hydrolysis time, soluble protein was decreased. Optimum treatment to hydrolyzing apple snail using trypsin enzyme was E3H4 treated (E/S 0.1 ratio and 3 h)
Mass Balance Analysis of Bioethanol Production from Petai Peel (Parkia speciosa) through Enzymatic Process Erwan Adi Saputro; Rachmad Ramadhan Yogaswara; Nerissa Arviana; Luckyana Aini; A.R Yelvia Sunarti; Reva Edra Nugraha
International Journal of Eco-Innovation in Science and Engineering (IJEISE) Vol. 2 No. 2 (2021): IJEISE
Publisher : International Journal of Eco-Innovation in Science and Engineering (IJEISE)

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Abstract

The consumption of fuel for transportation is increasing during the last decade. Bioethanol is one of the renewable energy has a good opportunity to be applied when the lack of fossil fuel. Bioethanol is derived from the lignocellulose substance through a fermentation process. In this research, the lignocellulose came from the petai peel (Parkia speciosa). The peel was hydrolyzed using an enzyme and continuously fermented for 5 days. The aim of this research is to analyst the mass balance of the bioethanol production from petai peel (Parkia speciosa) through the enzymatic process. The enzyme used in this research are alfa amylase (10 ml) and glucoamylase (10 ml), also Saccharomyces cerevisiae used in the fermentation process. The result shows that the initial material of petai peel was 57 grams will produce bioethanol around 14 grams.

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