3 research outputs found
Practical Analysis of Video Tutorials in Learning the Use of Electric Skin Care Equipment
Full text linkThe development of education today is marked by rapid technological innovation. This requires adjustments to the education system to keep in line with the needs of the workplace, which is also constantly changing due to technology. In other words, education needs to adapt so that graduates have skills that are relevant to the existing job market. The selection and use of learning media must be in line with the rapid advances in science and technology. Therefore, lecturers are expected to utilize information and communication technology to support the teaching and learning process, so that learning becomes more effective. The Cosmetology Education Study Program, as one of the study programs at State University of Medan, has a vision to become a superior study program in the field of vocational education, mastering technology, industrial engineering, and culture, in line with the field of cosmetology. To facilitate students in learning the material, the author created a digital learning medium in the form of a video tutorial on the use of electric facial care tools in the electric skin care subject in the Cosmetology Education Study Program, Faculty of Engineering, Medan State University. Therefore, this study aims to describe the practicality of video tutorials. This study is a quantitative descriptive study with data collection using questionnaires. The respondents in this study were 35 students majoring in Cosmetology who took the Electric Skin Care course in the odd semester from August to December 2024. The results of the study indicate that the tutorial videos used in the lectures were categorized as very practical with a score percentage of 42%; practical with a score percentage of 50%; and 8% were categorized as sufficient practical
PEMBUATAN VIRGIN COCONUT OIL (VCO) FERMENTASI DAN SABUN VCO DI KELURAHAN PALLANTIKANG, KECAMATAN MAROS, KABUPATEN MAROS
Full text linkVirgin Coconut Oil (VCO) merupakan minyak kelapa yang dibuat tanpa pemanasan atau tambahan bahan apapun sehingga komponen antioksidannya tidak mengalami kerusakan sehingga sering disebut juga minyak murni atau minyak perawan. VCO mengandung asam laurat yang tinggi dan dalam tubuh akan diubah menjadi monolaurin yaitu sebuah senyawa monogliserida yang dapat meningkatkan daya tahan tubuh manusia terhadap penyakit serta mempercepat proses penyembuhan. Pembuatan VCO bisa dengan berbagai cara dan salah satunya dengan fermentasi dengan menggunakan ragi roti. Metode ini mudah dalam pembuatan selain itu VCO juga dapat dibuat menjadi sabun VCO. Kegiatan ini bertujuan meningkatkan pengetahuan akan khasiat VCO dan sabun VCO bagi kesehatan serta minat berwirausaha masyarakat sehingga bisa meningkatkan perekonomian keluarga di Kelurahan Pallantikang Kecamatan Maros Baru Kabupaten Maros. Tahapan kegiatan didahului dengan survei lokasi dan pembuatan VCO skala laboratorium. Pelaksanaan kegiatan diawali dengan penyuluhan/ceramah terkait khasiat VCO bagi kesehatan, cara pengemasan dan pemasaran produk secara online. Kegiatan dilanjutkan dengan pelatihan dan praktek pembuatan VCO secara fermentasi dan diakhiri dengan diskusi. Kegiatan ini dihadiri oleh ibu-ibu dan remaja putri yang merupakan sasaran kegiatan ini PKM dan juga pemerintah setempat. Kegiatan berjalan lancar dan peserta menunjukkan antusias yang tinggi dalam diskusi maupun praktek. Hasil evaluasi kegiatan berdasarkan pre dan post test menunjukkan peningkatan pengetahuan peserta tentang VCO fermentasi dan sabun VCO setelah kegiatan. Kegiatan ini diharapkan meningkatkan minat wirausaha sehingga bisa meningkatkan perekonomian keluarga dengan memanfaatkan potensi lokal.
Kata kunci: Virgin Coconut Oil (VCO) fermentasi, sabun VCO, Kelurahan Pallantikang, Kecamatan Maros Baru.
ABSTRACT
Virgin Coconut Oil (VCO) is coconut oil made without heating or adding any ingredients so that the antioxidant components are not damaged, so it is often called pure oil or virgin oil. VCO contains high lauric acid and in the body will be converted into monolaurin, a monoglyceride compound that can increase the human body\u27s resistance to disease and accelerate the healing process. VCO can be made in various ways and one of them is by fermentation using baker\u27s yeast. This method is easy to make and VCO can also be made into VCO soap. This activity aims to increase knowledge of the efficacy of VCO and VCO soap for health and community entrepreneurial interest so that it can improve the family economy in Pallantikang Village, Maros Baru Subdistrict, Maros Regency. The activity stages were preceded by a location survey and laboratory-scale VCO production. The implementation of activities in the form of counseling / lectures related to the efficacy of VCO for health, how to package products and online product marketing followed by training and practice of making VCO by fermentation and ending with discussion. During the activity the participants showed high enthusiasm in practice and discussion, this was in line with the increase in their knowledge of fermented VCO to 60% and felt that their knowledge of how to make VCO and VCO soap had increased. This activity is expected to increase entrepreneurial interest so that it can improve the family economy by utilizing local potential.
Keywords: Fermented Virgin Coconut Oil (VCO), VCO soap, Pallantikang Village, Maros Baru District
Optimization and Analysis of Polyhydroxyalkanoate (PHA) by Bacillus sp. Strain CL33 and Bacillus flexus Strain S5a from Palm Oil Mill Waste
Full text linkPolyhydroxyalkanoate (PHA) is a biodegradable polymer that microorganisms can synthesize amidst non-optimal growth conditions with excess carbon sources. Palm oil, rich in fatty acids, serves as a carbon source for PHA synthesis. The bacterial PHA production can be influenced by carbon concentration in the growth medium. Therefore, determining the optimal concentration of palm oil as a carbon source is crucial for PHA production. Additionally, it is possible to determine the type of PHA generated by bacteria, which can then be utilized as information when processing utilizing the PHA. The experiment employed palm oil concentrations of 0.5%, 1%, and 2% and was carried out for periods of 48, 72, 96 hours. It was discovered that Bacillus sp. strain CL33 and Bacillus flexus strain S5a produced the most effective PHA at a concentration of 25 with an incubation period of 96 hours. The PHA generated by these bacteria was quantitatively analyzed through measurements of total bacterial growth, cell dry weight, and the levels of crotonic acid. PHA types were also analyzed using GC-MS, with monomers including 2-hydroxybutyrate(-2HB), 2-hydroxy-3-phenylpropionate (2H3PhP), 3-Hydroxyhexanoate (3HHx), 3-hydroxyoctanoate (3H2O), and 3-hydroxydecanoate (3HD). The Bacillus sp. strain CL33 yielded a PHA level of 92.23%. Meanwhile, Bacillus flexus strain S5a synthesized a polyhydroxyalkanoate comprising mostly 3-hydroxyhexanoate (3HHx) and polydimethylsiloxane (PDMS). The monomers used were decamethyltetrasiloxane, dodecamethylpentasiloxane, hexamethylcyclotrisiloxane, octamethylpentasiloxane, and dodecamethylcyclohexasiloxane. The type of PHA produced accounted for 85.93% of the total
