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All Journal Indonesian Journal of Food Technology Journal of Media and Learning Technology
Jannah, Jumrotul
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Agriculture, Biological Sciences & Forestry Computer Science & IT Education Languange, Linguistic, Communication & Media Other

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Application of Ultrasonic Waves on Decaffeination Process of Gayo Aceh Arabica Coffee Jannah, Jumrotul; Yuniati, Yuyun; Sucahyo, Bambang Sigit; Handarini, Kejora
Indonesian Journal of Food Technology Vol 4 No 1 (2025): Indonesian Journal of Food Technology
Publisher : Program Studi Teknologi Pangan Fakultas Pertanian UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.ijft.2025.4.1.15905

Abstract

Gayo Aceh Arabica coffee is famous for its quality and unique taste. However, caffeine-sensitive consumers often stay away from this coffee because excessive caffeine intake can have a detrimental effect on health. Therefore, the decaffeination process is important in producing low-caffeine coffee without reducing its distinctive taste and aroma. The research focused on assessing the influence of ultrasonic waves on the decaffeination process of Aceh Gayo arabica coffee. This study employed an experimental method that included 6 treatments (extraction time): K1 (2 minutes), K2 (4 minutes), K3 (6 minutes), K4 (8 minutes), K5 (10 minutes), and K6 (12 minutes). The variables measured in this study included caffeine regain, chlorogenic acid levels, and organoleptic test results. The collected data was analyzed using (SPSS) software version 30. This study found the best results in treatment K4 (8 minutes), which showed caffeine recovery of 56.83%, chlorogenic acid content of 12.3%, and neutral sensory evaluation (4) for color, acidity, and aroma according to panelists.
Efforts to Improve Early Childhood Language Skills through the Singing Method at RA Al-Hikmah Jannah, Jumrotul
Journal of Media and Learning Technology Vol. 1 No. 2 (2025): APRIL 2025
Publisher : MANDAILING GLOBAL EDUKASIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62945/jmlt.v1i2.260

Abstract

This study aims to improve the language skills of early childhood learners at RA Al-Hikmah through the implementation of singing-based instructional methods. Early language development is critical for cognitive, social, and academic growth, yet many young learners face challenges in vocabulary acquisition, pronunciation, and expressive communication. Singing has been recognized as an effective pedagogical strategy to stimulate linguistic and cognitive development by combining rhythm, melody, and repetitive phrasing, which support memory and oral expression. The research employed a Classroom Action Research (CAR) design, conducted in two cycles, each comprising planning, action, observation, and reflection stages. The participants were 25 children aged 4–6 years, and data collection involved observation sheets, language performance assessments, and audio-visual documentation. The findings revealed a significant improvement in children’s language abilities after the implementation of the singing method. In the initial observation, only 28% of students demonstrated age-appropriate expressive language skills. After the first cycle, this increased to 60%, and by the second cycle, 88% of children achieved marked improvement in vocabulary, sentence formation, pronunciation, and communicative confidence. Moreover, the observation indicated increased engagement, attention span, and social interaction among students during learning activities. These results suggest that singing methods are an effective, engaging, and developmentally appropriate strategy for enhancing early childhood language skills, supporting both cognitive and socio-emotional growth.
Co-Authors Kejora Handarini Sucahyo, Bambang Sigit Yuyun Yuniati