Proceedings of the 12th International Conference on Green Technology (ICGT 2022)

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46 articles
Proceedings Article

Peer-Review Statements

Elly Susanti, Juhari Juhari, Mohammad Nafie Jauhari
Proceedings Article

Numerical Simulation of Covid-19 Mathematical Modelling with Optimal Control in Indonesia

Nur Ilmayasinta, Asmianto
The mathematical model of COVID-19 considered in this study is the SEIR model which is defined by four ordinary differential equations that describe the number of susceptible, infected, infected and cured individuals by applying optimal control theory in the form of treatment and quarantine. To characterize...
Proceedings Article

Usability Analysis to Measuring Effectiveness of Online Final Project System

Agung Teguh Wibowo Almais, Ririen Kusumawati, Wahyu Hariyanto
Final Project is one of the academic stages that must be passed by students to obtain a degree. In the era of the Covid-19 pandemic, the stages to achieving this degree must be done online by students. To accommodate this, we need a system that can bridge so that the final project stages can run even...
Proceedings Article

Endophytic Fungi Isolated from Jasminum sambac L.: Identification, Histological Observation, and Content Analysis of Secondary Metabolites

Utami Sri Hastuti, Vivi Novianti, Dwi Rahmawati, Ria Yustika Sari, Nadila Sekar Zahida
Jasminum Sambac L. plant, especially the flower used for ritual ceremony, i.e.: the wedding ceremony. Commonly medicinal plants have an interaction with endophytic fungi species that lived in their tissues, the interaction form is mutualism symbiotic. The research was done to: (1) identify the endophytic...
Proceedings Article

Alkaline Pretreatment Optimization of Tobacco Stalks for Bioethanol Production

Bekti Palupi, Diana Fitriati, Devadha Halida Vinkarisma, Boy Arief Fachri, Istiqomah Rahmawati, Meta Fitri Rizkiana, Helda Wika Amini
The sustainable biomass production of fuels, chemicals, and other commercial products from lignocellulosic materials has received widespread attention. One of the potential biomass resources to be developed into biofuels is tobacco stalks. Production of tobacco plants in East Java Province was 84,100...
Proceedings Article

Characterization, Antioxidant, and Antibacterial Activity Silver Nanoparticle of Gelidium spinosum

Evika Sandi Savitri, Eko Budi Minarno, Lutfiyatul Azizah
The purpose of this study was to characterize AgNP, and determine antioxidant and antibacterial activities. This research is exploratory descriptive research. The characterization method used PSA (Particle Size Analysis) and FTIR (Fourier Transform Infrared Spectroscopy). The antioxidant activity method...
Proceedings Article

Analysis of the Differences Between the Design and Construction of Temporary Houses for Semeru Eruption Disaster in 2021

Mohammad Arsyad Bahar
This study was prepared to determine the difference between design and construction of Temporary Houses for post-disaster Semeru eruption in 2021. From the design documents and actual construction on the site, there are some changes, and the factors that influence these changes can be seen. The eruption...
Proceedings Article

In-Situ Sol-Gel Method of TiO2-reduced Graphene Oxide as Photocatalyst

Utiya Hikmah, Alfu Nur Laila, David Lee Giant Axala, Erna Hastuti, Nur Aini, Anton Prasetyo
Nanocomposites of TiO2-reduced Graphene Oxide were synthesized with graphene oxide (GO) loadings of 4, 8, 12, and 16 mg via in situ sol-gel method. The raw material of graphene oxide was coconut shell charcoal which was processed using a modified Hummer’s method by dissolving the graphite into the acid...
Proceedings Article

Sustainable Transportation and the Role of Intuitionistic Fuzzy Optimization

Nahlia Rakhmawati, Agus Widodo, Noor Hidayat, Abdul Rouf Alghofari
Developing environmentally friendly transportation that is affordable, secure, and simple to use is what is meant by sustainable transportation development. One of the best strategies to reduce the usage of private vehicles is to restructure the routes of public transportation. In order to reduce the...
Proceedings Article

Data Analytics and Its Implication on Auditing

Debbi Chyntia Ovami, Iskandar Muda
Data analytics is a new approach for auditors to prevent and detect fraud involving examining patterns in actual data. However, implementing data analytics requires a significant investment in hardware, software, skills, and quality control in the business world. This paper aims to analyze data analytics...
Proceedings Article

Liveworksheets: E-LKPD Geometry Based on Contextual Junior High School Level

Nurul Rahmah, Nilam Permatasari Munir, Lisa Aditya Dwiwansyah Musa, Salmilah, Muhammad Ihsan, Juleha
Mathematics is a science that cannot be separated from science and technology, so mastery of mathematics in the future requires the integration of technology as a form of teaching innovation in order to achieve learning objectives. This study discusses the development of teaching materials in the form...
Proceedings Article

Ethnobotany of Medicinal Wild Plants in the Community of Kutorejo Subvillage, Buffer Area of Alas Purwo National Park Banyuwangi Regency

Eko Budi Minarno, Akhmad Rubani, M. Rosyid Ridho
Alas Purwo National Park has a buffer area, namely Kutorejo Subvillage, Kalipahit Village, Tegaldlimo District, Banyuwangi Regency. The communities around the buffer area have local wisdom in the use of medicinal plants. Therefore it is important to carry out an ethnobotanical study in this area as a...
Proceedings Article

Eco-friendly Synthesis of SrBi4Ti3,95Fe0,05O15 via Molten Salt Method

Rizki Fitriana Dewi, Anton Prasetyo
The molten salt synthesis has been known as an eco-friendly synthesis method because it does not produce hazardous waste and also, there is no requirement for a high calcination temperature. In this research, we synthesized SrBi4Ti3.95Fe0.05O15 photocatalytic material via the molten salt method using...
Proceedings Article

Earthquake Microzonation Using Microtremor Analysis and Horizontal to Vertical Spectral Ratio Method Study Case at Ampelgading and Tirtoyudo Sub-district, Malang, East Java

Juan Pandu Gya Nur Rochman, Mirza Akbar Sadewa, Aditya Manafiska Putra
The earthquake that occurred on April 10, 2021, with a magnitude of 6, was felt in several areas on the island of Java and Ampelgading and Tirtoyudo sub-districts are the most affected areas. Due to the impact caused by the earthquake, a method is needed to be able to reduce the destructive effects of...
Proceedings Article

Quantitative Structure-Activity Relationship (QSAR) of N-Benzoyl-N'-Naphtylthiourea Derivative Compounds by in Silico as Anticancer Through Inhibition of VEGFR2 Receptors

Dewi Sinta Megawati, Juni Ekowati, S. Siswandono
Vascular endothelial growth factor receptor (VEGFR) tyrosine kinases (TKs) are clinically validated drug targets for anticancer therapy because they play an important role in the process of angiogenesis, tumor growth, and metastasis. VEGFR2 is a member of the VEGFR-Tks. VEGFR2 is an important regulator...
Proceedings Article

Analysis of Seismic Vulnerability Index Based on Microtremor Investigation (Case Study of Majangtengah Village, Dampit, Malang Regency)

Siti Rohmah, Adi Susilo, Didik Yudianto, Farizky Hisyam, Eko Andi Suryo, Sarjiyana
Some of the damage caused by earthquakes is not always caused by the strength of the earthquake or the distance from the epicenter of the earthquake to the affected buildings but is also influenced by local geological conditions. Majangtengah Village, Dampit District, Malang Regency is one of the areas...
Proceedings Article

Laplacian Spectrum of Identity Graph of Commutative Ring Z 2 p $${\mathbb{Z}}_{2{\varvec{p}}}$$

Fidyatus Safitri, Purwanto, Santi Irawati, Wahyu Henky Irawan
Research on the spectrum of a graph with an algebraic structure still attracts much attention. Let Z be a commutative ring. The I ( Z ) is a graph...
Proceedings Article

Antibacterial Activity Test Turmeric(Curcuma longa L.) Extract Herbal Oil in Extra Virgin Olive Oil Against Staphylococcus aureus and Propionibacterium acnes

Rif’atul Mahmudah, Yuni Tria Lestari, Berliana Aulia Khabibah
Turmeric and olive oil can be combined to produce herbal oil extracts. The purpose of this study was to determine the content of active compounds and to determine the effect of variations in the concentration of extracts on antibacterial activity. Turmeric is combined with extra virgin olive oil using...
Proceedings Article

Effect of Fermentation Time on Antibacterial Activity of Fermented Red Rice Bran by Rhizopus oryzae in Inhibiting Staphylococcus aureus and Escherichia coli

Akyunul Jannah, Anik Maunatin, Aisyah Ainur Rachma
Rice bran is a by-product of the rice milling process which is rich in nutrients and bioactive compounds such as flavonoids, alkaloids, triterpenoids, and so on. Pigmented rice bran such as red rice bran is richer in bioactive compounds because it contains anthocyanin compounds. The number of bioactive...
Proceedings Article

Effect of Application of Propolis as Feed Supplement and Preservation Agent to Pathogenic Microbes Contamination of Local Chicken Meat

Ida Kinasih, Fitri Anggraeni, Yani Suryani, Ukit Ukit, Ramadhani Eka Putra
Chicken meat is one of the primary protein sources for the Indonesian market. However, due to the warm and humid climate, chicken meat is subject to microbial contamination, i.e., Escherichia coli dan Salmonella sp. The source of the contamination is the chicken gastrointestinal environment during rearing...
Proceedings Article

Ginger (Zingiber Officinale): Drying to Encapsulation in Alginate-PVA Beads

Lukman Nulhakim, Reviana Inda Dwi Suyatmo, Flora Elvistia Firdaus, Rendhy Prasetia Utama, Siti Jariah, Eko Prabowo, Reyhan Syahreza Muslim
Ginger is one of the most widely produced horticultural commodities from the spice and medicinal plant group compared to other commodities. Ginger can be used in the form of dry powder or the form of ginger essential oil. Ginger essential oil has properties: it is unstable and susceptible to oxidation...
Proceedings Article

Dynamics of HIV Transmission with Saturated Incidence and Treatment Strategy

Marsudi, Agus Widodo, Darmajid
This paper presents a mathematical model for dynamics of HIV transmission by considering a saturated incidence type interaction for the human to human sexual transmission. The equilibria of the model are discovered, and the basic reproduction number is calculated. The analysis shows that if the basic...
Proceedings Article

Potency Complex Compound Mn(II)-TMPyP as a Dye Sensitizer on DSSC

Harsasi Setyawati, Handoko Darmokoesoemo, Irmina Kris Murwani, Evi Triana Putri
Both the increasing human population and energy consumption are the main factors which cause energy crises. In this situation, we need new alternative energy source. DSSC (Dye Sensitized Solar Cells) has great potential to develop because the dye as a light catcher can be directly applied in daily life....
Proceedings Article

Optimization of Zeolite-X Catalysed Palm Oil Transesterification Using Response Surface Methodology

Diska Indah Alista, Kamisah Delilawati Pandiangan, Khoirin Nisa, Wasinton Simanjuntak, Erika Noviana, Selvia Anggraini Hasan
In this study, response surface methodology was applied to optimize the transesterification of palm oil using zeolite-X prepared from rice husk silica and aluminum foil as a catalyst. For this purpose, response surface methodology (RSM) with a 3-level-3 factor central composite design was applied to...
Proceedings Article

Identification of Insects Visitors to Oil Palm Flowers in the Community Plantation of Kalicinta Village, North Kotabumi District, North Lampung Regency

Astuti Kusumorini, Novita Awalia Rahmah, Ida Kinasih
Palm oil is a plantation commodity with economic value in Indonesia. Insects are one of the crucial factors influencing oil palm fruit productivity. The study aimed to identify the insect visitors on male and female palm flowers based on border habitat types and visitation times. The research was conducted...
Proceedings Article

Eco-Friendly Synthesis and Characterization of SrBi4Ti3.9Fe0.1O15 via Molten Salt Method

Nurul Fitriathus Sholikhah, Anton Prasetyo
One method of synthesizing metal oxide compounds is the molten salt method. This method is an environmentally friendly method because it does not produce waste from residual solvents and uses a lower temperature. In this research, the synthesis of the compound SrBi4Ti3.9Fe0.1O15 was carried out via...
Proceedings Article

The Use of Coastal Wind for Electricity Generation Through Savonius Vertical Axis Wind Turbine at Remote Islands in East Java Offshore

Unung Lesmanah, Artono Raharjo, Margianto, Sugiono
Although Wind Turbine Generator has common use in several countries, in Indonesia, this thing is rarely used, even though Indonesia’s geographic itself stored a lot of potential in developing such an energy source. Indonesia is an archipelagic nation with five main islands and thousands of small islands....
Proceedings Article

Electronic Mathematics Student Worksheet Development Using Adobe Flash CS6

Sumardin Raupu, Maula Uswatun Hasanah, Mardi Takwim
This study discusses the development of electronic mathematics student worksheets assisted by Adobe Flash CS6 at SMAN 2 Palopo. Electronic student worksheets in mathematics were developed with the help of Adobe Flash CS6 in the form of applications that can be accessed via Android or computers. The development...
Proceedings Article

Detergent-Tolerant Heterotrophic Bacteria Consortium Strain Decomposer to Improve Environmental Health

Lud Waluyo
The increasing population and level of life in big cities in Indonesia has resulted in higher pollution of domestic wastewater in recent years. Efforts are urgently needed to overcome them, among others, with indigenous heterotrophic bacteria in the form of a consortium. The method used in this study...
Proceedings Article

Molecular Docking of Selected Phytosterol from Hydrilla verticillata on Estrogen Receptors as Candidates of Anti-breast Cancer

A. Ghanaim Fasya, Warsito, Elvina Dhiaul Iftitah, Rollando
Hydrilla verticillata is an aquatic plant that contains various secondary metabolites, such as triterpenoids and steroids. Several steroid compounds contained in Hydrilla verticillata are β-sitosterol, stigmasterol, fucosterol, campesterol, and cholesterol. Steroid compounds have the potential as candidates...
Proceedings Article

Implementation of Rubik's Cube Algorithm and Rivest-Shamir-Adleman (RSA) Algorithm on Iris Digital Image Security

Muhammad Khudzaifah, Siti Habibatul Ma’rifah, Hisyam Fahmi
Technological developments, especially smartphones, have led to an authentication process that must be developed. One of them is the use of the iris in the authentication process. The use of the iris can increase security in the authentication process because the structure of the iris is unique and differs...
Proceedings Article

The Influence of Gender, Age, Personal Selling and Brand Activation on Consumer Purchase Intentions on Xiaomi

M. Husnus Syawab, Sri Harini, Cahyo Crysdian, Eva Yustina, Ihsan Bagus Fahad Arafat, Muhammad Aji Permana, Setiyaris, Lia Wahyuliningtyas, Nur Hasyim Asyari
Competition and prospecting in the business world today is getting tight. It is also felt by businesses such as Xiaomi. Many other attempts that have sprung up with the characteristics of each. That customers are satisfied and do not move to another place, then the company should know the factors that...
Proceedings Article

Potential of Anthocyanin from Young Fruit Skin of Elaeis Guineensis as a pH Sensor

Dedi Futra, Lenny Anwar, Fitri Aldresti
The increased consumer demand for the freshness and safety of food products would contribute to providing new technologies, which could function intelligently and could monitor the freshness of packaged foods. Chemical indicators are often used to monitor the freshness of food, but they have toxic properties...
Proceedings Article

Prevention of Cytoadherence and Heart Cell Hypoxia of Balb/C Mices Infected with Plasmodium Berghei with Therapy of Pare (Momordica charantia L)

Zainabur Rahmah, Ilham Muhammad Faris, Riskiyana, Nurfianti Indriana, Alvi Milliana, Munawar Kholil, Achmad Nashichuddin
Background: Malaria is a disease caused by Plasmodium parasites (P. falciparum, P. ovale, P. vivax, P. malariae, P. knowlesi) infection often caused by the bite of female Anopheles mosquitoes which have Plasmodium parasites in their salivary glands. Plasmodium develops in the human liver and then invades...
Proceedings Article

The Dynamic Analysis of the COVID-19 Spread Model in the SIHCR Population with Time Delay

Ifa Sarifatus Hidayati, Ari Kusumastuti, Heni Widayani
This study discusses the dynamic analysis of the COVID-19 spread model in the SIHCR population with time delay to represent the behavior of the spread of COVID-19 with time delay. The SIHCR model divides the human population into five subpopulations, namely Susceptible ...
Proceedings Article

Optimization of Drug Design Composition by Hybrid Islamic and Evolutionary Medicine for Covid-19 and Its New Variants Using Geometric Time Variants Extreme Genetic Algorithm

Imam Cholissodin, Lailil Muflikhah, Sutrisno, Arief Andy Soebroto, Aurick Yudha Nagara, Renny Nova, Tamara Gusti Ebtavanny, Zanna Annisa Nur Azizah Fareza
There is a difficulty in building the implementation of a computational model to build a complex Covid-19 drug design involving a smart ecosystem. Covid-19 and the drug design of its new variants are formed by combining the appropriate compound and dose as an antiviral. Drug designs as the candidates...
Proceedings Article

Linear Discriminant Analysis (LDA) and Partial Least Square (PLS) of Chemometric in Mixture of Lard and Palm Oil-Based on Ftir-Spectroscopy Data

Imam Tazi
Oil as a basic food requirement is often misused by irresponsible individuals, such as lard mixed in palm oil. This is certainly detrimental to society. Indonesia which has a majority Muslim population will have a big influence on the authenticity of oil. FTIR can be an alternative way to distinguish...
Proceedings Article

Synthesis of Schiff Base Compounds from 4-Formilpyridine and P-Anisidina Using Sonication Method as Antibacterial

Ahmad Hanapi, Lutfiyatul Hasanah, Rachmawati Ningsih, Himmatul Barroroh
Schiff base compounds are reported to have various biological activities, one of which is antibacterial. This study aims to determine the characterization of the Schiff base product with the sonication method and to determine its antibacterial activity. Schiff base products from 4formylpyridine and panisidine...
Proceedings Article

Clustering of COVID-19 Provinces in Indonesia Using Fuzzy Means Cluster Methods

Ria Dhea L. N. Karisma, Tiara Setyo Arinda, Heni Widayani, Ari Kusumastuti
COVID-19 is a contagious virus that has global pandemic. Indonesia has the highest infected cases of COVID-19 in South-East Asia. The aim of the research is classified provinces in Indonesia using Fuzzy Mean Cluster (FCM) based on positive cases, recovery cases, and death cases of COVID-19. The result...
Proceedings Article

Test of Active Carbon Adsorption from Cassava (Manihot Utilissima) Peels Against Dyes

Wiwis Sasmitaninghidayah, Retno Indarti, Dewi Anggraeni
Cassava peel is the leading waste generated by the cassava processing industry. One of the regulatory efforts is to use it as a raw material for activated Carbon to adsorb dyes. This study aims to determine the adsorption capacity of activated Carbon from cassava peel waste on yellow dye. Activated Carbon...
Proceedings Article

Gen AdipoQ Polymorphism on Type 2 Diabetes Mellitus Patients

Tyas Nyonita Punjungsari
DNA polymorphisms is variation on DNA sequence that change amino acid and gene function through changes in splicing, one of this polymorphism was SNP which only one nucleotide that change on target sequence. A survey that comprised 44 single nucleotide polymorphism (SNP)s of 31 candidate genes related...
Proceedings Article

Decomposition Hamilton in Cayley Graphs with Certain Invers Generator of Dihedral- 2 n $$2n$$ Group

Astri Kumala, Hery Susanto, Desi Rahmadani, Wahyu Henky Irawan
The Hamilton decomposition of graph G is a partition of the edge set into a Hamilton cycle and 1-factor if the vertex degree is odd or a partition into a Hamilton cycle if the degree of the vertex is even. In 2020, the focus was on determining the Hamilton decomposition...
Proceedings Article

Human Voice Recognition System with Backpropagation Neural Network Method

Mohammad Bagus Dimas Prayugo, Nanda Azzahrotun Nafisa, Azis Yulianas, Hisyam Fahmi
The system on the computer can make everything run quickly and efficiently, so that it becomes a tool in information processing. One of the computer systems is an Artificial Neural Network (ANN). Along with technological advances, events that require computational models to perform speech recognition...
Proceedings Article

Optimization of Centella asiatica (L.) Urban Dosage in Improving Memory of Mice with Brain Necrosis Model

Bayyinatul Muchtaromah, Ely Nuril Fajriyah, Wahyuni Risalatul Azmah, Maharani Retna Duhita, Arif Nur Muhammad Ansori, Tanjina Sharmin
Brain necrosis in mice can be triggered by injection of streptozotocin (STZ), causing nerve cell injury that can trigger neurodegenerative diseases. Centella asiatica (L.) Urban is one of the herbs whose triterpenoid compounds have neuroregenerative activity, so it is widely used as Centella asiatica...
Proceedings Article

Antiaging Potency of Centella Asiatica Extract on Fibroblast Cells of Rattus Norvegicus Fetus by in Vitro and in Silico Approach

Zuliati Ningsih, Bayyinatul Muchtaromah, Maharani Retna Duhita, Robiatul Adawiyah, Farah Fauzia Maulahibati, Alfiah Hayati, Tanjina Sharmin
Aging is a physiological process that cannot be avoided, but can be prevented by giving antioxidants. Antioxidants can be obtained from Centella asiatica extract (EkCa). EkCa has secondary metabolites that have biological effects related to inflammation and prevent aging. The purpose of this study was...
Proceedings Article

Agglomerative Hierarchical Clustering Analysis Based on Partially-Ordered Hasse Graph of Poverty Indicators in East Java

Ina Maya Sabara, Fachrur Rozi, Mohammad Nafie Jauhari
Poverty is a central issue in many countries, so one of the main goals of a country is to eradicate poverty. One of the efforts is to identify indicators that affect poverty using cluster analysis. In this research, we discuss cluster analysis using the agglomerative hierarchical clustering method based...