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All Journal METANA Elkawnie Chemistry Indonesian Journal of Chemical Research Biopedagogia Dirasah: Jurnal Pendidikan Islam
Amalia, Hilda Ayu Melvi
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Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemistry Computer Science & IT Education Engineering Environmental Science Other

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The Effect of Acidity Level (pH) and Palm Sugar Sucrose Levels on the Quality of Brown Sugar Dali, Nasriadi; Chairunnas, Armadi; Amalia, Hilda Ayu Melvi; Puspitasari, Sri Ayu Andini
METANA Vol 20, No 1 (2024): Juni 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/metana.v20i1.57772

Abstract

Research on the effect of acidity level (pH) and sucrose levels of palm sugar has been successfully carried out. This study aims to determine the effect of acidity level (pH) and sucrose levels of palm sugar on the quality of brown sugar produced. The level of acidity (pH) of palm sugar is set at pH (3, 4, 5, 6, and 7). The quality of brown sugar is divided into three categories, namely quality 1 (high), 2 (moderate), and 3 (low). The sucrose content of palm sugar at pH (3 – 7) was determined by the Luff Schoorl method. The quality of brown sugar was determined organoleptically. The results of determining the sucrose content of palm sugar by Luff Schoorl method at pH (3, 4, 5, 6, and 7) were respectively (11.30, 12.25, 14.17, 15.10 and 16.42%). The results of organoleptic determination of brown sugar quality showed that: (1) palm sugar with sucrose content of 11.30% (pH 3) and 12.25% (pH 4) produced low quality brown sugar; (2) palm sugar with sucrose content of 14.17% (pH 5) and 15.10% (pH 6) produced medium quality brown sugar; (3) palm sugar with a sucrose content of 16.42% (pH 7) produces high quality brown sugar. So, the level of acidity (pH) and sucrose levels of palm sugar affect the quality of brown sugar. The lower the pH and sucrose content of palm sugar, the lower the quality of the brown sugar produced. Conversely, the higher the pH and sucrose content of palm sugar, the higher the quality of the brown sugar produced. Therefore, the quality of palm sugar needs to be maintained so that the pH and sucrose content do not decrease so that the brown sugar produced is of high quality. The results of testing the quality of brown sugar based on SNI-01-3743-1995 show that brown sugar produced from palm sugar at pH 5 – 7 meets SNI requirements. Meanwhile, brown sugar produced from palm sugar at pH 3 and 4 does not meet SNI requirements.
Synthesis of Glucopyranosyl Acetic from Sago Flour as Raw Material for the Synthetic Polymers Dali, Arniah; Dali, Nasriadi; Dali, Seniwati; Amalia, Hilda Ayu Melvi
Indonesian Journal of Chemical Research Vol 8 No 3 (2021): Edition for January 2021
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2021.8-dal

Abstract

Synthesis of glucopyranosyl acetic from sago flour as raw material for the synthetic polymers has been successfully carried out. The synthesis product is obtained through two reaction stages, namely the hydrolysis and esterification reactions. Sago flour is hydrolyzed with 25% HCl and neutralized with 45% NaOH. Glucose hydrolysis of sago starch and acetic anhydride was esterified using a zinc chloride catalyst. Synthesis product was obtained as a white solid substance (57.31% recovery), a melting point of 110 - 111oC, and Rf 0.79 on TLC (SiO2, n-hexane: ethyl acetate = 9:1 v/v). The results of the analysis of synthesis products with FTIR and GC-MS spectrometers showed that the synthesis product was glucopyranosyl acetic or 2,3,4,6-tetra-O-acetyl glucopyranose.
Extraction of The Chemical Components of Dengen Leaves (Dillenia serrata Thunb) by MAE Method and Activity Test as Antioxidant and Toxicity Wela, Nasriadi Dali; Dali, Seniwati; Chairunnas, Armadi; Amalia, Hilda Ayu Melvi; Puspitasari, Sri Ayu Andini
Indonesian Journal of Chemical Research Vol 10 No 2 (2022): Edition for September 2022
Publisher : Jurusan Kimia, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598//ijcr.2022.10-wel

Abstract

Research on the extraction of chemical components of Dengen (Dillenia serrata Thumb) leaves using the MAE (microwave-assisted extraction) method and activity as an antioxidant and toxicity test has been carried out. This study aimed to extract the chemical components of Dengen leaves using the MAE method and to test the antioxidant activity and toxicity of the ethanol extract of Dengen leaves. The chemical components of Dengen leaves were extracted by the MAE method and obtained ethanol extract with a yield of 47%. Dengen leaves ethanol extract was partitioned with n-hexane and ethanol as solvents and obtained yields of 5% (n-hexane) and 65% (ethanol). The chemical components of Dengen leave ethanol extract were identified by phytochemical screening. The results of phytochemical screening showed the presence of secondary metabolites of alkaloids, flavonoids, saponins, polyphenols, terpenoids, and steroids. The antioxidant activity test of the ethanol extract of Dengen leaves was carried out using the DPPH (2,2-diphenyl-1-picrihydrazil) method and obtained the value of IC50 = 100,363 ppm (strong antioxidant). A toxicity test of the ethanol extract of Dengen leaves was carried out using the BSLT (Brine Shrimp Lethality Test) method and obtained the value of LC50 = 18.3443 ppm (very toxic).
Toxicity Test Using The Brine Shrimp Lethality Test (BSLT) Method on Extracts of Stem Bark, Stem Wood, and Leaves on Bayur (Pterospermum diversifolium B. Rob.) Zakaria, Zakaria; Soekamto, Nunuk Hariani; Dali, Nasriadi; Amalia, Hilda Ayu Melvi; Syarifuddin, Syamsidar Haji
Elkawnie: Journal of Islamic Science and Technology Vol 10, No 1 (2024)
Publisher : Universitas Islam Negeri Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ekw.v10i1.20380

Abstract

Abstract: Ethnobotanically, the leaves of P. diversifolium are used as a medicine for itching and the root bark is used as fish poison. The traditional use of natural materials should be followed by scientific studies. This study aims to determine the toxicity of the stem bark, stem wood, and leaf tissue extracts of P. diversifolium using the Brine Shrimp Lethality Test (BSLT) method. Extraction using maceration method with ethanol solvent for 3 x 24 hours. The macerate was filtered and the extract obtained was evaporated until a crude extract was obtained. The three ethanol extracts obtained were tested for toxicity and obtained LC50 values of stem bark = 4,753 ppm, stem wood = 97,723 ppm, and leaves = 27,797 ppm. All extracts were declared non-toxic because the LC50 value was more than 1000 ppm.Abstrak: Secara etnobotani, daun P. diversifolium digunakan sebagai obat gatal serta kulit akarnya sebagai racun ikan. Penggunaan bahan alam secara tradisional seharusnya diikuti kajian ilmiah. Penelitian ini bertujuan untuk mengetahui toksisitas pada ekstrak jaringan kulit batang, kayu batang, dan daun P.diversifolium dengan metode Brine Shrimp Lethality Test (BSLT). Ekstraksi menggunakan metode maserasi dengan pelarut etanol selama 3 x 24 jam. Maserat disaring dan ekstrak yang peroleh dievaporasi sampai didapatkan ekstrak kental. Ketiga ekstrak etanol yang diperoleh diuji toksisitasnya dan diperoleh nilai LC50 kulit batang = 4.753 ppm, kayu batang = 97.723 ppm, dan daun = 27.797 ppm. Semua ekstrak dinyatakan tidak toksik karena nilai LC50 lebih dari 1.000 ppm.
PERBANDINGAN HASIL BELAJAR MAHASISWA ASRAMA DAN NON-ASRAMA PADA MATA KULIAH FIQIH MUAMALAH PADA PROGRAM STUDI PENDIDIKAN AGAMA ISLAM DI IAIN KENDARI Yunita, Ferni; Obaid, Moh. Yahya; Amalia, Hilda Ayu Melvi
Dirasah: Jurnal Pendidikan Islam Vol 5, No 2 (2024)
Publisher : IAIN KENDARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31332/jpi.v5i2.8310

Abstract

Tujuan dari penelitian ini adalah : (1) untuk mengukur hasil belajar mahasiswa asrama pada mata kuliah fiqih muamalah program studi Pendidikan Agama Islam di IAIN Kendari, (2) untuk mengukur hasil belajar mahasiswa non asrama pada mata kuliah fiqih muamalah program studi Pendidikan Agama Islam di IAIN Kendari, (3) untuk mengukur perbedaan hasil belajar mahasiswa asrama dan non asrama pada mata kuliah fiqih muamalah program studi Pendidikan Agama Islam di IAIN Kendari. Jenis penelitian ini adalah penelitian komparatif dengan pendekatan kuantitatif, dengan desain penelitian casual comparative adapun data dikumpulkan dengan metode observasi dan dokumentasi. Analisis data yang digunakan adalah analisis stastistik yang terdiri atas analisis dekstriptif dan analisis inferensial.Hasil penelitian menunjukan bahwa Hasil belajar mahasiswa asrama pada mata kuliah fiqih muamalah pada program studi pendidikan agama Islam di IAIN Kendari menunjukkan hasil belajar mahasiswa asrama dengan nilai tertinggi adalah 4,00, nilai terendah 3,50, dan rata-rata nilai mahasiswa asrama adalah 3,79 serta standar deviasi 0,18, (2) Hasil belajar mahasiswa asrama pada mata kuliah fiqih muamalah pada program studi pendidikan agama Islam di IAIN Kendari menunjukkan nilai tertinggi mahasiswa non asrama adalah 4,00 dan mahasiswa yang memperoleh nilai adalah 3,48, dan rata-rata nilai mahasiswa non asrama adalah 3,72 serta standar deviasi 0,16 dan (3) Hasil analisis menunjukkan bahwa antara hasil belajar mahasiswa asrama dan non asrama yang diambil dari mahasiswa angkatan 2020-2021 program studi pendidikan agama Islam di IAIN Kendari tidak terdapat perbedaan yang signifikan.
Analysis of The Quality of Biology Learning Media In The Form Of Macroarthropodarium Complete With Leaflets Hasana, Fitratul; Amalia, Hilda Ayu Melvi; Rosmini, Rosmini
Biopedagogia Vol 6, No 2 (2024): November
Publisher : Program Studi Pendidikan Biologi Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/biopedagogia.v6i2.5626

Abstract

Land animals can be used to make a macroarthropodarium equipped with leaflets as well as a principle for embodying local wisdom in making learning media. The existence of a macroarthropodarium equipped with leaflets is very necessary and plays an important role in supporting the teaching and learning process of biology which is still considered abstract by students. This research aims to determine the feasibility of a macroarthropodarium equipped with leaflets as a biology learning medium in animalia material for class X even semester. This research uses a descriptive method with a qualitative approach through the distribution of learning media validation instruments on aspects of appearance, technical quality, size and terms that are validated by media experts. Judging from the appearance aspect, the macroarthroppodarium media equipped with leaflets got a score of 4.3, the scale aspect got a score of 4.5, the technical quality aspect got a score of 4.5, the size aspect got a score of 4.25, the language aspect got a score of 4.5 and the term aspect got a score of 4.25. Based on the validation results, the learning media in the form of a macroarthropodarium equipped with leaflets received a valid or suitable category for use at the next stage.
PERBANDINGAN HASIL BELAJAR MAHASISWA ASRAMA DAN NON-ASRAMA PADA MATA KULIAH FIQIH MUAMALAH PADA PROGRAM STUDI PENDIDIKAN AGAMA ISLAM DI IAIN KENDARI Yunita, Ferni; Obaid, Moh. Yahya; Amalia, Hilda Ayu Melvi
Dirasah: Jurnal Pendidikan Islam Vol. 5 No. 2 (2024)
Publisher : IAIN KENDARI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31332/jpi.v5i2.8310

Abstract

Tujuan dari penelitian ini adalah : (1) untuk mengukur hasil belajar mahasiswa asrama pada mata kuliah fiqih muamalah program studi Pendidikan Agama Islam di IAIN Kendari, (2) untuk mengukur hasil belajar mahasiswa non asrama pada mata kuliah fiqih muamalah program studi Pendidikan Agama Islam di IAIN Kendari, (3) untuk mengukur perbedaan hasil belajar mahasiswa asrama dan non asrama pada mata kuliah fiqih muamalah program studi Pendidikan Agama Islam di IAIN Kendari. Jenis penelitian ini adalah penelitian komparatif dengan pendekatan kuantitatif, dengan desain penelitian casual comparative adapun data dikumpulkan dengan metode observasi dan dokumentasi. Analisis data yang digunakan adalah analisis stastistik yang terdiri atas analisis dekstriptif dan analisis inferensial.Hasil penelitian menunjukan bahwa Hasil belajar mahasiswa asrama pada mata kuliah fiqih muamalah pada program studi pendidikan agama Islam di IAIN Kendari menunjukkan hasil belajar mahasiswa asrama dengan nilai tertinggi adalah 4,00, nilai terendah 3,50, dan rata-rata nilai mahasiswa asrama adalah 3,79 serta standar deviasi 0,18, (2) Hasil belajar mahasiswa asrama pada mata kuliah fiqih muamalah pada program studi pendidikan agama Islam di IAIN Kendari menunjukkan nilai tertinggi mahasiswa non asrama adalah 4,00 dan mahasiswa yang memperoleh nilai adalah 3,48, dan rata-rata nilai mahasiswa non asrama adalah 3,72 serta standar deviasi 0,16 dan (3) Hasil analisis menunjukkan bahwa antara hasil belajar mahasiswa asrama dan non asrama yang diambil dari mahasiswa angkatan 2020-2021 program studi pendidikan agama Islam di IAIN Kendari tidak terdapat perbedaan yang signifikan.
Co-Authors Chairunnas, Armadi Dali, Arniah Hasana, Fitratul Moh. Yahya Obaid, Moh. Yahya Nasriadi Dali Nunuk Hariani Soekamto Puspitasari, Sri Ayu Andini Rosmini Rosmini Seniwati Dali Syarifuddin, Syamsidar Haji Yunita, Ferni Zakaria Zakaria