Dwi Kartika Putri
Pendidikan Biologi FKIP Universitas Lampung

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KAJIAN ETNOSAINS PEMBUATAN IKAN ASIN DI TELUK BETUNG TIMUR UNTUK PEMBELAJARAN IPA KONTEKSTUAL Aura Apma Patria; Rismatul Fadillah; Dwi Kartika Putri; Bayu Saputra Tri Kusuma; Lia Amanda Damayanti; Rani Putri Setiyowati; Berti Yolida; Rini Rita T Marpaung
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 02 (2026): Volume 12 No. 2, Juni 2026 Release
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i02.15441

Abstract

Effective science education requires learning resources that are relevant to students’ real-life experiences, and one approach that can be used is ethoscience, which integrates local knowledge as a learning medium. However, the application of this approach in the coastal areas of Lampung, particularly in the Teluk Betung region, has not yet been systematically and thoroughly studied. This study employed a descriptive qualitative method, involving four experienced salted fish processors on Pasaran Island, East Teluk Betung, Bandar Lampung City, as research subjects selected through purposive sampling. Data were collected through participant observation, in-depth semi-structured interviews, and documentation, and were then analyzed using the Miles and Huberman model, which includes the stages of data reduction, data presentation, and drawing conclusions. Data validity was ensured through the simultaneous application of source triangulation and methodological triangulation. The research findings reveal that the salted fish production process in the Teluk Betung area involves five main stages: selection of fresh fish, boiling in a salt solution on board the boat, sun-drying, sorting, and packaging of the final product. Each stage incorporates relevant science concepts, including osmosis, sodium chloride ion diffusion, heat transfer (radiation, conduction, and convection), phase changes (evaporation), and mechanisms for inhibiting microbial growth. The unique local practice of boiling fish on a ship involves the concepts of the boiling point of a salt solution and differences in air pressure, which have not been previously reported. This ethoscience study has the potential to be developed into contextual learning tools such as ethoscience-based worksheets and local content teaching modules for Lampung that are relevant to the Merdeka Curriculum.
ANALISIS KARAKTERISTIK ORGANOLEPTIK YOGURT HASIL FERMENTASI PADA PRAKTIKUM BIOTEKNOLOGI PANGAN Reni Widiyawati; Made Anisa Indrayeni; Dwi Kartika Putri; Sumardi; Berti Yolida; Nadya Meriza
Didaktik : Jurnal Ilmiah PGSD STKIP Subang Vol. 12 No. 3 (2026): Volume 12 No. 3, September 2026 Release
Publisher : STKIP Subang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36989/didaktik.v12i3.16540

Abstract

Yogurt is a fermented dairy product widely consumed for its nutritional value and health benefits. This study aims to analyze the organoleptic characteristics of fermented yogurt produced during a food biotechnology laboratory session at the University of Lampung. Two yogurt samples were produced using different starter cultures: Sample A used two bacterial strains (Lactobacillus bulgaricus and Streptococcus thermophilus), while Sample B used four bacterial strains, adding Lactobacillus acidophilus and Bifidobacterium. Organoleptic evaluation was conducted on four parameters: color, aroma, taste, and texture. Results showed that both samples produced white-colored yogurt, a sour and fresh aroma, and a sour-savory-milky taste. However, Sample B exhibited a more pronounced sour aroma and taste, along with a slightly thinner yet still viscous texture compared to Sample A. These differences are attributed to the increased metabolic activity of the four-bacteria combination, which produced greater amounts of lactic acid and volatile compounds. This study demonstrates that starter culture composition significantly influences the organoleptic profile of yogurt produced in an educational laboratory setting.