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Formaldehyde Adulteration in Meatball is Still Prevalent, and it is Hard to Identify Only from its Physical Properties Pratama, Yoga; Astuti, Asri; Setiani, Bhakti Etza
Journal of Applied Food Technology Vol 10, No 2 (2023)
Publisher : Dept. Food Technology, Faculty of Animal and Agricultural Sciences, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17728/jaft.20667

Abstract

Human carcinogenic compound formaldehyde (alternative name, formalin) adulteration in food is inappropriate and illegal. However, its simple and cheap procedure in giving desired food preservation effect becomes the factor of its prevalence in Indonesian community. Our current study focuses on the usage of formaldehyde in meatball products which are sold in bulk without refrigeration in traditional market set up. Eighty different packages of meatballs were collected following accidental sampling method from small groceries in Tembalang, Semarang, Central Java in 2019. Samples were characterized for their formaldehyde content (AOAC 931.08), total plate count, moisture and organoleptic properties. Formaldehyde was found in 1 sample at the level of 176.2 ppm. Whereby, it was among only 4 % of samples that met the maximum microbial limit of 5 log CFU/g. The particular sample was characterized by pale color, rather slimy surface, chewy and weak meatball aroma. Note, this characteristic is not unique and is shared by several other samples. Therefore, this study brings an update that formaldehyde adulteration is still prevalent. The adulterated product has hardly distinctive sensorial properties which make self-evaluation difficult, thus exposing consumers to potential food safety risks.
Prediction of PTIK students' study success in the first year using the c4.5 algorithm Astuti, Asri; Maryono, Dwi; Liantoni, Febri
Journal of Soft Computing Exploration Vol. 5 No. 1 (2024): March 2024
Publisher : SHM Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52465/joscex.v5i1.237

Abstract

The purpose of this study is to determine the factors that influence the success of student studies in the first year through data mining research using the C4.5 algorithm. This research is a type of quantitative research. This research uses student data of a study program as much as 85 data which will be processed using the Weka application. The data obtained will then be processed using the C4.5 data mining method to produce a decision tree containing rules to predict the success of student studies in the first year. The best result using percentage-split 80% obtained an accuracy of 82.35% as well as the rules contained in the decision tree. The most important factor in determining the success of studies in first-year students is the selection of college entrance pathways. Other factors that become other determinants are education before college, intensity of communication with friends, class year, intensity of off-campus organizations, and plans to change study programs.
A Semiotic Analysis of Sign Found in GOJEK Advertisement ‘Jangan Sepelekan Kekuatan Jempol’ Intan Aulia Rahman, Ajie; Astuti, Asri; Khoirunisa, Eva; Fitriyah, Fitriyah; Azzahrani, Marsya; Sakinah, Mutiara
Journal of Multidisciplinary Inquiry in Science, Technology and Educational Research Vol. 2 No. 1b (2025): NOVEMBER 2024 - JANUARI 2025 (TAMBAHAN)
Publisher : UNIVERSITAS SERAMBI MEKKAH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32672/mister.v2i1b.2795

Abstract

This research analyzes the denotation, connotation, and myth present in GoJek advertisements through the lens of Roland Barthes' semiotic theory. Employing a qualitative descriptive methodology, the study interprets the imagery within the GoJek advertisement video. The analysis adheres to the data flow model by Miles and Huberman (1994), which encompasses data reduction, display, and conclusion formulation. The results indicate that the thumb serves as a central symbol in the GoJek advertisements. On a denotative level, it signifies physical actions like using a smartphone, wiping tears, counting money, and utilizing the GoJek application. On a connotative level, the thumb is linked to themes of empowerment, efficiency, social connectivity, and resilience. The research further uncovers various myths associated with the thumb symbol, including narratives about modernity, progress, individual potential, and the impact of small actions on communal well-being. By utilizing Barthes’ semiotic framework, this study emphasizes how GoJek advertisements leverage visual signs to convey persuasive messages that resonate with the intended audience within their cultural and social context.