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Articles 1,542 Documents
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Handwash Soap Production by Recycling Used Cooking Oil to Empower a Boarding School in Surakarta
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2449

Abstract

Cooking oil is a primary good used for daily cooking purposes. In Indonesia, normally cooking oil is used up to four times frying. The used oil locally is referred to jelantah oil, blackish-brown colored, contains very high levels of cholesterol, and carcinogen, and it may cause harm for human health. Jelantah oil usually will be directly disposed of the environment, this may cause water and soil pollution. According to this, it is necessary to educate people to do reduction and recycle the used oil (jelantah), as will be done in Kanzus Sholawat Surakarta Foundation located in Sukoharjo, Central Java. The jelantah oil will be processed into handwash soap products with a feasible, easy, and cheap method and utilizing easily obtained material. To start, a 500 ml of used cooking oil is filtered and mixed with 160 grams of NaOH flakes soluted in 200 ml of water. Some drops of fragrance are added to make the soap perfumed. The purpose of this community service is to assist the Kanzus Sholawat Surakarta Foundation to take the economic value from the oil waste. The program will be carried out by training and guidance to process the jelantah oil into handwash soap, and continuous evaluation to make sure the Kanzus Sholawat Surakarta students and the nearby community get the optimal benefits. It is also expected that this activity can support the foundation's vision to become an environmentally minded institution.
Diversification of Processed Onion Products as the Iconic Product in Darurejo Village, Jombang Regency Silvana Dwi Nurherdiana; Reva Edra Nugraha; Rachmad Ramadhan Yogaswara; Handi Ramadhan; Muhammad Hakam; Wahyu Arif Dharmawan
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2450

Abstract

Darurejo Village, Plandaan District, Jombang is an onion horticulture area where the highest productivity level is in the Jombang Regency of 3990 kw and 38 kw/ha. However, the onion sales are not optimal so farmers often experience losses. Therefore, we service activities regarding the processing and management to enhance the effectiveness. Coinciding with the COVID-19 pandemic and the enactment of the government's decision to Implement Emergency Community Activity Restrictions (ECAR) the implementation of counseling is carried out online. The online activity was carried out through the WhatsApp Group, on Saturday, July 31, 2021, from 11.00-14.00 WIB, which was attended by 25 village cadres. This outreach activity was carried out by providing 2 materials, including basic knowledge of onion and the resulting products such as fried onion, onion baceman, and onion powder which have great potential to be widely sold, and the introduction of automatic peeling machines to increase the quantity and quality of productions through online and offline meeting on August 28, 2021. It is hoped that the community will be able to process and manage the onion shallot potential products.
Efforts to Improve the Batik Design Capability of the Babussalam Islamic Boarding School Jombang in the Middle of a Pandemic Kusuma Wardhani Mas’udah; Nur Aini Fauziyah; Euis Nurul Hidayah; Syahrul Munir
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2451

Abstract

Islamic Boarding School throughout the history of the development of Indonesian society has played an important role, especially in the development of religious education. Currently, there is a phenomenon of the transformation of the role of Islamic Boarding School which focuses on the balance between religious knowledge and science. However, so far, capacity-building activities during the Covid-19 pandemic are considered ineffective. The batik design training program using CorelDraw software is implemented as a form of the OPOP program for the development of an Islamic Boarding School-based economy. The method of implementing this activity is by conducting training, implementation, mentoring, and networking. From the results of the field evaluation, the economic activities of the pesantren have received a very positive response from the students.
Effect of Hydrolysis Time and Bromelain Enzyme Concentration on Protein Levels Of Apple Snail (Pila ampullaceal) Hydrolyzate Dedin Finatsiyatull v; Anugerah Dany Priyanto; Andre Yusuf Trisna
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2452

Abstract

A high enough population of snails is considered detrimental to society. Currently, snails have a fairly low economic value, even though the protein content is quite high. In general, animal protein content is higher than vegetable protein, but animal protein tends to be more expensive. The need for protein as a human nutrient is quite high. There needs to be an effort to provide a source of animal protein in sufficient quantities, the price is relatively cheap, and contains high protein. For this reason, it is necessary to use the protein of snails. Apple Snail (Pila ampullaceal) is a type of snail that has a high protein content. There needs to be a method to optimize the extract of snail protein. The protein hydrolysis process was one method to optimize the process of separating protein from non-protein content. Snail protein hydrolyzate can be used for umami products, soy sauce, or biscuit mixtures. The process of the hydrolysis of Apple snails using the bromelain enzyme at concentrations: of 1%, 5%, and 10% with variations in hydrolysis time of 3 hours, 6 hours, 9 hours, 12 hours, 15 hours, and 18 hours. The results showed that treatment at 1% bromelain enzyme concentration obtained the highest soluble protein content (4.18%) at 15 hours of hydrolysis time. While in the treatment of 5% bromelain enzyme concentration, the highest dissolved protein content (3.35%) was obtained at 15 hours of hydrolysis time. In the treatment of 10% bromelain enzyme concentration, the highest dissolved protein content (4.13%) was obtained at 12 hours of hydrolysis time. The results of this study can be concluded that the highest protein content was obtained by using the enzyme bromelain 1%-10% with a hydrolysis duration of 12 hours - 15 hours.
Utilization of Smoked Fish Processing Waste in Bulak Fish Center Surabaya as Fish Feed Raw Material Mohamad Mirwan; Firra Rosariawari; Syahrul Munir
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2453

Abstract

Fish processing waste management in the coastal area of ??Kenjeran Beach is very critical to the environment. The production process of smoked fish has also created various solid wastes in the form of offal, head, tail, and fish fins. In this case, the solid wastes produced were disposed of without any prior management thus it can cause environmental pollution to reduce the pollution, it is necessary to utilize it to minimize the pollution. Bulak Fish Center Surabaya has plenty of smoked fish retailers selling their catches. Waste management has not been carried out optimally because it was relatively expensive for retail scale traders, so there needs to be an alternative utilization of fish waste. Wastes generated from smoked fish have great potential to be used as raw material for fish feeds with a fairly high content of protein and lipids. In addition to protein and amino acid sources, fish waste also contains minerals and vitamins. Utilization of smoked fish waste such as innards in the form of digestive organs, heads, and tails of these fish can be used as fish pellets raw material. The knowledge about waste and how to utilize the waste as fish feed needs to be informed to the fish processing business owners and the community around the Bulak Fish Center Surabaya. This community service will provide basic knowledge, and counseling, and become a pioneer of fish feed production so that it can be applied as fish feed materials used for fish cultivation.
Enhancing Productivity of UD Rahayu Food by Symmetrical Tofu Cutter Utilization Erwan Adi Saputro; Rachmad Ramadhan Yogaswara; Eristya Maya Safitri
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2454

Abstract

UD. Rahayu Food was one of pioneer on the special tofu production with soft texture called “tahu susu”. During pandemic of Covid-19, the productivity of UD. Rahayu Food was decreased and it had an impact on their sales. Optimalization of its production process by technology application would be one of the solutions for UD. Rahayu Food. The aims of this community service at UD. Rahayu Food is upgrading their productivity rate by production tools improvement. The production tool that was developed on this activity is symmetrical tofu cutter. This equipment was utilized for cutting of tofu symmetrically before being processed into “tahu susu”. Moreover, this cutter could speed up the slicing step process and their product quantity would be raised. Hopefully, provision of this symmetrical cutting tool could increase the income of UD. Rahayu Food during Pandemic Covid-19
Analysis of Changes in Sea Surface Temperature During 2017-2021 at The Coast of Ujung Pangkah Gresik with Landsat 8 Satellite Image Data Hendrata Wibisana; Zetta Rasullia Kamandang; Kartini
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2455

Abstract

Changes in sea surface temperature play an important role in climate change that occurs especially in coastal areas such as Ujung Pangkah Gresik. Changes that occur on the coast will affect the lives of people in the area, and these changes will result in anomalies in climate change and other natural phenomena. The purpose of this study is to find changes in Sea Surface Temperature for 5 years to find the right formula for modeling the impact of these changes, which can be overcome in the future. The method developed here is remote sensing technology with Landsat 8 satellite imagery data to extract the digital number value which is converted into a reflectance value to then look for the optimal mathematical model algorithm with parameters of changes in sea surface temperature. The result of this research is that the wavelength of the red channel is the wavelength that can provide the most optimal results compared to the blue channel, the green channel, and the IR channel. From these wavelengths, an exponential mathematical model and a power model are generated which have the best correlation values among several other calculated models. From this study, it can be concluded that Landsat 8 satellite imagery can provide an overview of changes in sea surface temperature on the coast, especially for shallow waters such as Ujung Pangkah Gresik, so that in the future it can be used as an alternative in decision making in coastal management.
Alternative Program From Life Cycle Assessments (LCA) in Sugar Cane to Reduce Environmental Impact Aulia Ulfah Farahdiba; Anis Yusrin Qonita; Nanik Ratni JAR; Aussie Amalia
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2456

Abstract

The advantage of the LCA method is that it can comprehensively analyze the potential impacts that can occur on the environment. In this study, a study of the LCA of sugar production. In this study, a sugar factory produces an environmental impact on the gate to gate sugar production process (power plant, milling station, purification station, evaporation station, cooking/crystallization station, and spin) using the Eco-Indicator 99 (H) method. The most significant environmental impacts of the sugar production process are respiratory inorganics, land use, and fossil fuels. The cause of the impact of respiratory inorganics occurs due to air emissions such as particulate matter, nitrogen dioxide, and sulfur dioxide from the boiler. The cause of the effects of land use comes from sugarcane land used as raw material for cane cutter units. In comparison, the impact of fossil fuels occurs due to the use of diesel fuel in the sugarcane planting process and natural gas from the fertilizer production process. Alternative improvement programs can be carried out to reduce the environmental impact caused by the sugar factory production process include the procurement of air emission controllers that meet standards and periodic maintenance. Furthermore, reducing diesel fuel and replacing it with environmentally friendly fuels, paying attention to farmers. Related to increasing productivity based on land suitability assessment, reducing the use of chemical fertilizers, and replacing environmentally friendly fertilizers in the sugarcane planting process.
Inhibition of Struvite Crystal Growth with The Addition of Carboxylic Acid Using Batch Operation Dyah Suci Perwitasari; Sintha Soraya Santi; Muhammad Aji Pangestu; Yahya A.
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2457

Abstract

Tartaric acid and maleic acid are carboxylic acids that effectively inhibit the growth of struvite crystals and weak organic acids that are friendly environments. The purpose of this study was to determine the effectiveness of inhibition of struvite crystal growth from the effect of adding carboxylic acid (tartaric acid and maleic acid) using batch operation which can be used as a slow-release fertilizer. Struvite is an effective phosphate fertilizer as an alternative source of rock phosphate to maintain agricultural production systems. From the results of the study, tartaric acid was found to be 10,483 mg at a temperature of 40oC with a concentration of 20 ppm and stirrer rotation of 300 rpm which was a better optimum condition to be applied in the struvite fertilizer industry when compared to maleic acid. Characterization of struvite crystals using XRPD Rietveld and SEM-EDX methods.
Estimation of Bearing Capacity of Pile with Variation of Shape on Cohesive Soil Based on the Result of CPT Test (Study Case: Gunung Anyar District) Dian Purnamawati Solin; Fithri Estikhamah
Nusantara Science and Technology Proceedings International Seminar of Research Month 2021
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2022.2458

Abstract

The bearing capacity of soil provides the most important output for soil investigation. Bearing capacity becomes a reference in designing the substructure of the structure. Therefore, it is necessary to have a capable bearing capacity analyzed by varying the shape of the foundation to provide a clear description of the highest bearing capacity of all the variations presented. In this study, a soil investigation was carried out by using the Cone Penetration Test from several distribution locations in Gunung Anyar District Area, where it is well known as cohesive soil which has a lower bearing capacity compared to non-cohesive soil. Based on this analysis, it shows that the pile foundation using a square cross-section will provide a greater value for the pile bearing capacity. Increasing the dimensions of the cross-sectional shape, it will provide a greater value for the carrying capacity of the pile as well. This is evidenced at a depth of 16.4 m, for a square cross-sectional dimension of 0.4 m it gives a value of 80.49 tons, while for a cross-sectional dimension of 0.6 m it gives a value of 164.736 tons.

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