Article Per Year (5 Year)
p-Index From 2020 - 2025
0.817
P-Index
This Author published in this journals
All Journal Jurnal Penelitian Pascapanen Pertanian BERITA BIOLOGI Pendas : Jurnah Ilmiah Pendidikan Dasar JURNAL TARBIYAH Jurnal Review Pendidikan dan Pengajaran (JRPP) Student Scientific Creativity Journal
Ade Andriani
Unknown Affiliation
Religion Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Languange, Linguistic, Communication & Media Social Sciences Other

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
Production Of Malto-Oligosaccharides From Cassava Cultivar Kuning Nanik Rahmani; Ade Andriani; nFN Yopi; Sri Hartati
Jurnal Penelitian Pascapanen Pertanian Vol 12, No 3 (2015): Jurnal Penelitian Pascapanen Pertanian
Publisher : Balai Besar Penelitian dan Pengembangan Pascapanen Pertanian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21082/jpasca.v12n3.2015.147-155

Abstract

Characteristic the physic-chemical of Indonesia cassava starch from four cultivated varieties has been conducted for maltooligosaccharide production. Result of proximate analysis of the extracted starch indicated that the extracted starch was quite pure. The purity of the extracted starch was visually confirmed by microscopic analysis by using SEM micrographs at 2500X magnifications show that the integrity of the granules starch as intact. Based on the amylopectin and amylase content showed that one of cultivated variety of cassava, cultivated variety Kuning contain the amylopectin higher than amylase was compared with the other cultivated variety. The next focus research was analysis potential of starch from cultivated variety Kuning for maltooligosaccharide production by enzymatic hydrolysis by ?-amylase from marine bacterium Brevibacterium sp. The optimum hydrolysis condition for cultivated variety Kuning was obtained substrate concentration 4.5% (b/v), comparison of substrate: enzyme 1:2, temperature reaction 30oC with reducing sugars concentration of 13.359 ppm. The hydrolysis products of cassava starch cultivated variety Kuning were maltooligosaccharides mixture, yielding maltose, maltotriose, maltotetraose, maltopentaose. This result showed that cassava starch of cultivated varieties Kuning potential for maltooligosaccharides production. PRODUKSI MALTOOLIGOSAKARIDA DARI UBI KAYU VARIETAS KUNINGKarakteristik fisiko kimia karbohidrat dari empat varietas kultivar asal Indonesia dilakukan untuk melihat potensinya sebagai bahan baku untuk produksi maltooligosakarida. Analisa proksimat karbohidrat hasil ekstraksi dari keempat varietas kultivar ubi kayu mengindikasikan bahwa karbohidrat yang dihasilkan cukup murni. Kemurnian dari karbohidrat tersebut terlihat setelah dikonfirmasi dengan analisa mikrokospis dengan menggunakan mikroskop electron SEM dengan pembesaran 2500X yang menunjukkan bahwa granulanya utuh. Berdasarkan kadar amilopektin dan amilosa menunjukkan bahwa salah satu varietas kultivar ubi kayu yaitu varietas Kuning mengandung amilopektin lebih tinggi dibandingkan kadar amilosanya jika dibandingkan dengan tiga varietas kultivar lainnya. Fokus penelitian selanjutnya adalah analisa potensi karbohidrat varietas kultivar Kuning tersebut untuk produksi maltooligosakarida dengan hidrolisis enzimatis oleh ?-amylase dari Brevibacterium sp. Kondisi optimum hidrolisis dari varietas kultivar Kuning diperoleh pada konsentrasi substrat 4.5% (b/v), perbandingan substrat dan enzim 1:2, suhu reaksi 30oC dengan kadar gula reduksi yang diperoleh 13.359 ppm. Produk hidrolisis dari ubi kayu varietas kultivar Kuning adalah berupa campuran maltooligosakarida yang terdiri atas maltose, maltotriose, maltotetraose, maltopentaose. Hasil ini menunjukkan bahwa karbohidrat ubi kayu dari varietas kultivar Kuning mempunyai potensi untuk digunakan sebagai bahan baku untuk produksi maltooligosakarida.
PURIFIKASI DAN KARAKTERISASI ENZIM PEKTINASE DARI Aspergillus ustus BL5 Yopi Yopi; Nanik Rahmani; Ade Andriani; Fitria Dewi; Anja Meryandini
BERITA BIOLOGI Vol 12, No 3 (2013)
Publisher : Research Center for Biology-Indonesian Institute of Sciences

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/beritabiologi.v12i3.646

Abstract

Pectinase is an enzyme that could hydrolyze pectin into galacturonic acid. Natural pectinase was produced by microbes such as bacteria, yeast, fungi and Actinomycetes. Application of pectinase in industry were mainly in juice industry, textile, pulp, tea, cocoa and coffee fermentation. In this research, we conducted purification and characterization of pectinase produced by Aspergillus ustus BL5 in submerged fermentation using commercial pectin. The result showed that the optimum of pectinase production was reached at 120 hours fermentation process with specific activity 0.59 U/mg. The crude extract of pectinase was then concentrated using PEG 6000 and purified by Sephadex G-75 gel filtration chromatography. There were 2 fractions contained pectinase which the activity was 4.15 U/mg (pectinase A) and 3.3 U/mg (pectinase B), respectively. Compare to crude extract, the yield product of pectinase A and B increased 6.94 and 5.53 times, respectively. The purified pectinase A have optimum temperature at 50 oC and optimun pH at 5.
PENINGKATAN KEMAMPUAN PEMECAHAN MASALAH MATEMATIK MAHASISWA FMIPA PENDIDIKAN MATEMATIKA MELALUI MODEL PEMBELAJARAN IMPROVE Ade Andriani
JURNAL TARBIYAH Vol 23, No 1 (2016)
Publisher : UIN Sumatera Utara Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1121.927 KB) | DOI: 10.30829/tar.v23i1.107

Abstract

The purpose of research in the design of this experiment was to investigate the apparent increase in the mathematical problem solving abilities of students. The research was conducted in the Department of Mathematics Education, State University of Medan. This research is an experimental study with the study design pre-test-post-test control group design. The population in this study were all students of semesters 1 (one) UNIMED mathematics education majors to take samples of two classes (class experimental and control classes) through random sampling technique. Data obtained from tests the ability of solving mathematical problems. Data were analyzed by ANOVA two lanes. Before use ANOVA two-lane first tested for normality and homogeneity in research in this study with a significant level of 5%. The results showed that the average increase problem solving ability test experimental class was 0.48 and 0.38 in the control class is sig = 0.02 with 0.02 <α = 0.05 then there is an increase in mathematical problem solving ability students are taught by learning models IMPROVE higher than in the Direct Learning. The findings of the study recommend IMPROVE be one learning approach used in primary school or university to achieve a high level of competence thinking.Keywords    : Improve Learning Model, Mathematical Problem Solving Ability
Analisis Tingkat Kecemasan Siswa Pada Pembelajaran Matematika Kelas X Di MAS YMPI Tanjungbalai Tahun Pembelajaran 2022/2023 Hamimah Hamimah; Ade Andriani
Student Scientific Creativity Journal Vol. 1 No. 3 (2023): Mei : Student Scientific Creativity Journal
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/sscj-amik.v1i3.1328

Abstract

Mathematics is often considered a difficult subject by students so it is not uncommon for students to experience learning difficulties such as experiencing anxiety when learning mathematics, therefore this study aims to describe the level of anxiety, describe the factors that cause anxiety, and how anxiety affects student learning difficulties class X at MAS YMPI Tanjungbalai. In this study, the number of research subjects was 36 students with a sampling technique, namely purposive sampling. Data collection in this study was in the form of data field notes using observation, questionnaires, interviews and documentation. Learning difficulties can be interpreted as a condition in the learning process which is characterized by the presence of certain obstacles to achieve learning outcomes. In this study it refers more to the problem of student anxiety which is an obstacle in achieving learning objectives. This research is a type of qualitative research and the validity technique in this study uses time triangulation. Based on the results of data analysis and discussion regarding the level of student anxiety in learning mathematics, it can be concluded that from 36 students, 8 (22.2%) students experienced high levels of anxiety, 23 (63.9%) students experienced moderate anxiety levels and 5 (13.9) %) students have a low level of anxiety. The anxiety of the students with the low anxiety category was more responsive and very enthusiastic in learning mathematics compared to the other two categories, namely the moderate anxiety category and the high anxiety category. Based on data analysis on average student learning outcomes, students with high levels of anxiety will have an average learning outcome lower than students with medium anxiety levels and high anxiety levels.
PENGARUH MODEL GAME BASED LEARNING BERBANTUAN APLIKASI KAHOOT TERHADAP MOTIVASI BELAJAR MATEMATIKA SISWA KELAS VII SMP NEGERI 27 MEDAN Ria Agustina; Ade Andriani
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 04 (2025): Volume 10 No. 04 Desember 2025 Build
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i04.33966

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model Game Based Learning (GBL) berbantuan aplikasi Kahoot terhadap motivasi belajar matematika siswa kelas VII SMP Negeri 27 Medan. Latar belakang penelitian berangkat dari rendahnya motivasi belajar siswa, khususnya pada materi data dan diagram. Berdasarkan observasi awal, siswa kurang bersemangat mengikuti pembelajaran konvensional yang cenderung monoton. Hal ini berdampak pada rendahnya keterlibatan siswa dalam proses belajar. Metode penelitian yang digunakan adalah kuasi eksperimen dengan desain pretest-posttest control group. Populasi penelitian mencakup seluruh siswa kelas VII SMP Negeri 27 Medan tahun ajaran 2024/2025. Sampel terdiri dari dua kelas yang dipilih secara acak, yaitu kelas eksperimen dan kelas kontrol. Kelas eksperimen (29 siswa) diajar dengan model GBL berbantuan Kahoot, sedangkan kelas kontrol (29 siswa) diajar dengan pembelajaran konvensional. Instrumen penelitian berupa angket motivasi belajar. Analisis data dilakukan melalui uji normalitas, homogenitas, dan uji-t pada taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa motivasi belajar siswa kelas eksperimen lebih tinggi dengan rata-rata 85,87 dibandingkan kelas kontrol dengan rata-rata 78,98; diperoleh nilai uji t = 2,968 > = 1,67252 dan nilai Sig. (1-tailed) = 0,002, sehingga terdapat pengaruh positif dan signifikan model Game Based Learning berbantuan Kahoot terhadap motivasi belajar matematika siswa. Hal ini membuktikan bahwa integrasi aplikasi Kahoot dalam pembelajaran mampu menciptakan suasana yang interaktif, kompetitif, dan menyenangkan sehingga berpengaruh positif terhadap motivasi belajar siswa.
PENGARUH MODEL GAME BASED LEARNING BERBANTUAN APLIKASI KAHOOT TERHADAP MOTIVASI BELAJAR MATEMATIKA SISWA KELAS VII SMP NEGERI 27 MEDAN Ria Agustina; Ade Andriani
Pendas : Jurnal Ilmiah Pendidikan Dasar Vol. 10 No. 04 (2025): Volume 10 No. 04 Desember 2025 Build
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Pasundan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23969/jp.v10i04.33966

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh model Game Based Learning (GBL) berbantuan aplikasi Kahoot terhadap motivasi belajar matematika siswa kelas VII SMP Negeri 27 Medan. Latar belakang penelitian berangkat dari rendahnya motivasi belajar siswa, khususnya pada materi data dan diagram. Berdasarkan observasi awal, siswa kurang bersemangat mengikuti pembelajaran konvensional yang cenderung monoton. Hal ini berdampak pada rendahnya keterlibatan siswa dalam proses belajar. Metode penelitian yang digunakan adalah kuasi eksperimen dengan desain pretest-posttest control group. Populasi penelitian mencakup seluruh siswa kelas VII SMP Negeri 27 Medan tahun ajaran 2024/2025. Sampel terdiri dari dua kelas yang dipilih secara acak, yaitu kelas eksperimen dan kelas kontrol. Kelas eksperimen (29 siswa) diajar dengan model GBL berbantuan Kahoot, sedangkan kelas kontrol (29 siswa) diajar dengan pembelajaran konvensional. Instrumen penelitian berupa angket motivasi belajar. Analisis data dilakukan melalui uji normalitas, homogenitas, dan uji-t pada taraf signifikansi 5%. Hasil penelitian menunjukkan bahwa motivasi belajar siswa kelas eksperimen lebih tinggi dengan rata-rata 85,87 dibandingkan kelas kontrol dengan rata-rata 78,98; diperoleh nilai uji t = 2,968 > = 1,67252 dan nilai Sig. (1-tailed) = 0,002, sehingga terdapat pengaruh positif dan signifikan model Game Based Learning berbantuan Kahoot terhadap motivasi belajar matematika siswa. Hal ini membuktikan bahwa integrasi aplikasi Kahoot dalam pembelajaran mampu menciptakan suasana yang interaktif, kompetitif, dan menyenangkan sehingga berpengaruh positif terhadap motivasi belajar siswa.
PENGARUH PENGGUNAAN APLIKASI CANVA TERHADAP HASIL BELAJAR MATEMATIKA SISWA KELAS XI SMA Ade Andriani; Putri, Silvia Dwi; Nurjannah, Siti; Novrianti, Sutiara Citra; Fauziyah, Zuhra
Jurnal Review Pendidikan dan Pengajaran Vol. 7 No. 4 (2024): Special Issue Vol. 7 No. 4 Tahun 2024
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/jrpp.v7i4.36148

Abstract

Perkembangan teknologi informasi dan komunikasi telah membawa perubahan signifikan dalam berbagai aspek kehidupan, termasuk dalam dunia pendidikan. Salah satu inovasi teknologi yang semakin populer dalam dunia pendidikan adalah penggunaan media sosial berbasis desain seperti Canva. Penelitian ini bertujuan untuk melihat apakah penggunaan media Canva dapat meningkatkan kemampuan belajar siswa kelas XI Mars. Instrumen penelitian berupa tes uraian yang telah divalidasi oleh guru mata pelajaran. Hasil analisis dari penelitian ini menunjukkan    diterima, yaitu adanya perbedaan sebelum dan sesudah diberikan pembelajaran dengan menggunakan canva sehingga terdapat pengaruh hasil belajar kognitif dalam mata pelajaran matematika dengan menggunakan media canva.
Co-Authors Anja Meryandini Fauziyah, Zuhra Fitria Dewi Hamimah Hamimah Nanik Rahmani Nanik Rahmani nFN Yopi Novrianti, Sutiara Citra Putri, Silvia Dwi Ria agustina Siti Nurjannah Sri Hartati Yopi Yopi