Development of Natural Materials Chemistry Practicum Guide on Extraction and Identification of Flavonoid Compounds from Broccoli and Kale
DOI:
10.29303/cep.v9i1.11313Published:
2026-05-31Downloads
Abstract
This research aimed to produce a natural products chemistry laboratory guide and to determine the feasibility based on validity and practicalit. This research was an experimental samples used in this research were 50 g broccoli and 50 g of fresh kale leaves. The subjects as sources of validity and practicality data were two lectures as expert validators and 18 students of the Chemistry Education study Program in the seventh semester of the 2021/2022 academic year for the practicality test of the laboratory guide, who were determined using purposive sampling tehnique and whose data were collected using a questionnaire technique. The experimental data were analyze qualitatively and showed the presence of flavonoid compounds. The development dara of laboratory guide in the form of validity data were analyzed using the Aiken’s V formula and percent of agreement. From the analysis, an Aiken’s V value of 0.92 was obtained, which is included in the very valid category. In additional, a percent of agreement value of 0.93 indicates a very high level of agreement among the raters. Based on the practicality test result, a value of P= 90% was obtained, which indicates that the laboratory guide is very practical. Based on these result, it can be concluded that the developed laboratory guide is caterorized as very feasible and very practical.
Keywords:
Laboratory Manual Development Natural Product Chemistry Flavonoid Extraction Flavonoid Identification Broccoli and KaleReferences
Aribowo, A. I., Lubis, C. F., Urbaningrum, L. M., Rahmawati, N. D., & Anggraini, S. (2021). Isolasi Dan Identifikasi Senyawa Flavonoid Pada Tanaman. 2(6), 752–757.
Jainuri, M., Susanti, A., & Prindiyati, F. (2021). Pengembangan Lkpd Berbasis Discovery Learning Pada Pembelajaran Matematika. Mat-Edukasia : Jurnal Pendidikan Matematika, 6(2), 30–36.
Kusumawardianingrum, A., & Lindawati, N. Y. (2022). Antidiabetic Activity Of Ethanolic Extract Of Kale (Brassica Oleracea Var. Sabellica). Jurnal Farmasi Dan Ilmu Kefarmasian Indonesia, 9(1), 92–100.
Mahmudah, S., Sukib, & Hakim, A. (2018). Pengembangan Modul Praktikum Kimia Bahan Alam: Isolasi Trimiristin Dari Pala Skripsi. Chemistry Education Practice, 1, 20–25.
Muaja, M. G. D., Runtuwene, M. R. J., & Kamu, V. S. (2017). Aktivitas Antioksidan Ekstrak Metanol Dari Daun Soyogik (Saurauia Bracteosa Dc.). Jurnal Ilmiah Sains, 17(1), 68.
Mustaming, A., Cholik, M., & Nurlaela, L. (2015). Pengembangan Perangkat Pembelajaran Memperbaiki Unit Kopling Dan Komponen-Komponen Sistem Pengoperasiannya Dengan Model Discovery Learning Untuk Meningkatkan Hasil Belajar Siswa Kelas Xi Otomotif Smk Negeri 2 Tarakan. Jurnal Pendidikan Vokasi : Teori Dan Praktek, 3(1), 81–95.
Ramdhaniah, N., Hakim, A., & Junaidi, E. (2021). Pengembangan Modul Praktikum Kimia Bahan Alam: Isolasi Triterpenoid Lupeol Dari Daun Mangrove (Sonneratia Alba). Chemistry Education Practice, 4(2), 121–128.
Sari, A., Savalas, L. R. T., & Hakim, A. (2020). Pengembangan Modul Praktikum Kimia Bahan Alam Tentang Isolasi Senyawa Dari Minyak Kayu Manis. Chemistry Education Practice, 3(1), 12.
Simanjuntak, K. (2012). Peran Antioksidan Flavonoid Dalam Meningkatkan Kesehatan. Bina Widya, 23, 135–140.
Sugiyono. (2019). Metode Penelitian Kuantitatif Kualitaitf Dan R&D. Alfabeta.
Suhardi, I. (2022). Perangkat Instrumen Pengembangan Paket Soal Jenis Pilihan Ganda Menggunakan Pengukuran Validitas Konten Formula Aiken’s V. Jurnal Pendidikan Tambusai, 6(1), 4158–4170. Https://Jptam.Org/Index.Php/Jptam/Article/View/3519
Suryaningsih, Y. (2017). Pembelajaran Berbasis Praktikum Sebagai Sarana Siswa Untuk Berlatih Menerapkan Keterampilan Proses Sains Dalam Materi Biologi. Bio Education, 2, 49–57.
Utami, L., Festiyed, Ilahi, D. P., Ratih, A., Lazulva, & Yenti, E. (2024). Analisis Indeks Aiken Untuk Mengetahui Validitas Isi Instrumen Scientific Habits Of Mind. Journal Od Researcg And Education, 6(1), 59–67.
Wasia, N. H., Sudarma, I. M., Savalas, L. R. T., & Hakim, A. (2017). Isolasi Senyawa Sinamaldehid Dari Batang Kayu Manis (Cinnamomum Burmanii) Dengan Metode Kromatografi Kolom. Jurnal Pijar Mipa, 12(2), 91–94.
License
Copyright (c) 2026 Wahida Shofyatun Nufusita
This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Authors who publish with Chemistry Education Practice agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License 4.0 International License (CC-BY-SA License). This license allows authors to use all articles, data sets, graphics, and appendices in data mining applications, search engines, web sites, blogs, and other platforms by providing an appropriate reference. The journal allows the author(s) to hold the copyright without restrictions and will retain publishing rights without restrictions.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in Chemistry Education Practice.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
