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All Journal Emasains : Jurnal Edukasi Matematika dan Sains Adi Widya : Jurnal Pendidikan Dasar
A.A.Istri Mirah Dharmadewi
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Earth & Planetary Sciences Education Environmental Science Mathematics

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Analisis Kandungan Klorofil Pada Beberapa Jenis Sayuran Hijau Sebagai Alternatif Bahan Dasar Food Suplement A.A.Istri Mirah Dharmadewi
Emasains : Jurnal Edukasi Matematika dan Sains Vol. 9 No. 2 (2020): September 2020
Publisher : FPMIPA IKIP PGRI Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (666.933 KB) | DOI: 10.5281/zenodo.4299383

Abstract

Penelitian ini bertujuan untuk mengetahui jumlah kadar klorofil pada beberapa jenis sayuran hijau diantaranya bayam (Amaranthus tricolor L.), selada (Lactuca sativa L.) dan daun singkong (Manihot esculenta) serta untuk mengkaji potensi sayuran tersebut sebagai sumber suplemen makanan. Metode yang digunakan dalam penelitian ini adalah metode eksperimental dengan menggunakan Rancangan Acak Kelompok (RAL) yang terdiri dari 3 jenis tanaman dengan 3 kali ulangan. Penelitian ini dilakukan dengan cara mengekstrak 0,1 g masing-masing daun sayuran dalam 10 mL aseton 85%. Ekstrak disaring menggunakan kertas Whatman No. 1 diukur absorbansinya menggunakan alat AAS (Atomic Absorption Spectrophotometry). Analisis yang digunakan yaitu Analisis Varians (ANOVA) dengan Rancangan Acak Lengkap (RAL) pada tingkat kepercayaan 95%. Bila hasil ANOVA menunjukkan perbedaan nyata, analisis dilanjutkan dengan menggunakan uji Duncan’s New Multiple Range Test (DMRT) pada tingkat kepercayaan 95%. Hasil penelitian menunjukan bahwa Jumlah rata-rata kandungan klorofil tertinggi terdapat pada daun singkong (Manihot esculenta) yaitu sebesar 18,141 mg/l, daun bayam (Amaranthus tricolor L.) dan daun selada (Lactuca sativa L.) sebesar 1,83 mg/l. Dari ketiga jenis tanaman tersebut ketiga jenis tanaman sayuran tersebut berpotensi sebagai bahan dasar food supplement dimana kandungan klorofil tetinggi terdapat pada daun singkong (Manihot esculenta) dan terendah terdapat pada daun selada (Lactuca sativa L.) Kata Kunci : Klorofil ; daun singkong (Manihot esculenta) ;bayam hijau (Amaranthus tricolor L.) selada (Lactuca sativa L.) ;AAS ABSTRACT Analysis of Chlorophyll Content in Several Types of Green Vegetables as an Alternative to Food Supplement This study aims to determine the amount of chlorophyll content in several types of green vegetables including spinach (Amaranthus tricolor L.), lettuce (Lactuca sativa L.) and cassava leaves (Manihot esculenta) and to assess the potential of these vegetables as a source of dietary supplements. The method used in this study is an experimental method using a randomized block design (CRD) consisting of 3 types of plants with 3 replications. This research was conducted by extracting 0.1 g of each vegetable leaf in 10 mL of 85% acetone. The extract was filtered using Whatman No. paper. 1, the absorbance was measured using an AAS (Atomic Absorption Spectrophotometry) tool. The analysis used was Analysis of Variance (ANOVA) with Completely Randomized Design (CRD) at the 95% confidence level. If the ANOVA results show a real difference, the analysis is continued using Duncan's New Multiple Range Test (DMRT) at a 95% confidence level. The results showed that the highest average amount of chlorophyll content was found in cassava leaves (Manihot esculenta), namely 18.141 mg / l, spinach leaves (Amaranthus tricolor L.) and lettuce leaves (Lactuca sativa L.) of 1.83 mg / l. . Of the three types of plants, the three types of vegetable plants have the potential as basic ingredients for food supplements where the highest chlorophyll content is found in cassava leaves (Manihot esculenta) and the lowest is in lettuce (Lactuca sativa L.) Keywords : Chlorophyll; cassava leaves (Manihot esculenta); green spinach (Amaranthus tricolor L.) lettuce (Lactuca sativa L.); AAS
DAMPAK TEKNOLOGI DIGITAL TERHADAP PERILAKU BELAJAR SISWA DI SD NEGERI 2 KESIMAN A.A.Istri Mirah Dharmadewi; Anak Agung Ayu Ary Susanti
Adi Widya: Jurnal Pendidikan Dasar Vol 10 No 2 (2025): Vol 10 No 2 (2025): Adi Widya: Jurnal Pendidikan Dasar
Publisher : Universitas Hindu Negeri I Gusti Bagus Sugriwa Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25078/aw.v10i2.5824

Abstract

This study aims to analyze in depth how the use of digital technology affects student learning behavior at SD Negeri 2 Kesiman in the context of 21st-century learning. This study uses a qualitative descriptive method by synthesizing various previous research findings on digital-based learning in elementary schools. The analysis results show that digital technology has several positive impacts, including increasing student access to more diverse learning resources, strengthening learning motivation through interactive media, and encouraging active student participation through the use of learning applications, educational videos, and other digital platforms. Furthermore, digital technology can enrich the learning experience through collaborative activities and more creative problem-solving. However, this study also found several negative impacts that need to be anticipated, such as decreased concentration due to distractions from non-educational content, increased dependence on devices, and reduced discipline and ability to manage learning time. These risks have the potential to hinder students' social-emotional development if technology use is not properly guided. Therefore, this study emphasizes the importance of teachers and parents in providing guidance, supervision, and fostering healthy technology use so that the benefits of digital technology can be maximized and its negative impacts can be minimized in the student learning process.
Co-Authors Anak Agung Ayu Ary Susanti