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All Journal GERAM (GERAKAN AKTIF MENULIS) Mudir : Jurnal Manajemen Pendidikan Journal of Contemporary Accounting Jurnal Ilmiah Kesehatan JIIP (Jurnal Ilmiah Ilmu Pendidikan) Amina ENGLISH FRANCA : Academic Journal of English Language and Education Jurnal Hurriah: Jurnal Evaluasi Pendidikan dan Penelitian Chlorophyl: Jurnal Ilmu-Ilmu Pertanian International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) Jurnal Pengabdian Enrichment: Journal of Multidisciplinary Research and Development Jurnal Malikussaleh Mengabdi Journal of Indonesian Primary School PESHUM Jurnal Penelitian Hasil Hutan
Zuraida
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DIFFRENSIASI GELATIN DARI KULIT BABI DAN SAPI DENGAN MENGGUNAKAN METODE FOURIER TRANSFORM INFRARED (FTIR) DAN PRINCIPAL COMPONENT ANALYSIS (PCA) Nisah, Khairun; Arfi, Febrina; Zuraida
AMINA Vol. 4 No. 2 (2022): August 2022
Publisher : Department of Chemistry, Faculty of Science and Technology, UIN Ar-Raniry

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/amina.v4i2.5476

Abstract

Gelatin gel merupakan turunan dari protein yang diperoleh dari proses hidrolisis kolagen pada tulang dan kulit hewan vetebrata. Penelitian ini bertujuan untuk menentukan differensiasi dari gelatin kulit babi dan sapi. Penelitian ini menggunakan metode perendaman dengan larutan asam yaitu CH3COOH sebagai pembutan gelatin dari kulit babi dan sapi kemudian dikarakterisasi menggunakan Fourier Transform Infrared (FTIR) pada gugus Amida A, Amida I, Amida II dan Amida III selanjutnya daerah dari puncak spektrum dari hasil FTIR dianalisis menggunakan Principal Component Analysis (PCA) yang berupa pengelompokan pada kuadran I,II,III dan IV. Hasil PCA yang diperoleh yaitu dalam bentuk score plot menunjukkan bahwa gelatin dari kulit sapi terletak pada kuadran III sedangkan gelatin dari kulit babi terletak pada kuadran I. Kesimpulan penelitian ini ialah dari metode FTIR perbedaan dari gelatin kulit babi dan sapi ditunjukkan melalui dearah puncak spektra sedangkan dari metode PCA perbedaan antara kedua jenis gelatin dibedakan dari letak kuadran pada score plot.
The Role of Institutional Ownership and Audit Quality in Moderating the Effect of Free Cash Flow on Earnings Management Arafah, Muhammad; Arfan, Muhammad; Zuraida
Enrichment: Journal of Multidisciplinary Research and Development Vol. 3 No. 4 (2025): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v3i4.407

Abstract

This study aims to examine the effect of institutional ownership and audit quality in moderating the relationship between free cash flow and earnings management of non-financial firms in Indonesia. This study uses 179 observations for the year 2019-2023 of non-financial companies listed in the Indonesia Stock Exchange and sampling technique used is proportionate stratified random sampling.  Then, data are analyzed using multiple linear regression analysis and moderated regression analysis (MRA). The study's findings suggest that free cash flow has positive effect on earnings management. It has been demonstrated that audit quality plays a role in reducing or mitigating the positive influence of free cash flow on earnings management. However, on the other hand, institutional ownership does not play a role in moderating the effect of free cash flow on earnings management. Unless audited by a reputable public accounting firm, investors and prospective investors should be cautious in funding businesses with significant free cash flow since it may encourage managers to engage in earnings management. If financial statements of a company are audited by a reputable public accounting firm, the manager’s motivation to engage in earnings management may be reduced. In order to explain how free cash flow affects earnings management, this study adopts a novel strategy by combining audit quality and institutional ownership characteristics as moderating variables.
ANALISIS TOKSISITAS BEBERAPA TUMBUHAN HUTAN DENGAN METODE BRINE SHRIMP LETHALITY TEST (BSLT) Zuraida
Jurnal Penelitian Hasil Hutan Vol. 36 No. 3 (2018): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2018.36.3.239-246

Abstract

Utilization of forest plant seeds of suren (Toona sureni (Blume) Merr.), mimba (Azadirachta indica A.Juss.), mahogany (Swietenia mahagoni (L.) Jacq.), and saga (Adenanthera pavonina L.) for curing certain illness have long been practiced by traditional community. However, there were limited study on observing seeds bioactivity of those four species. This study aimed to analyze the toxicity activity of suren, mahoni, mimba, and saga seeds. The four seeds were initially macerated using 96% ethanol. The ethanol extracts were then tested for their toxicity effects on the Artemia salina larvae by Brine Shrimp Lethality Test (BSLT) method. BSLT results were presented through the Lethal Concentration 50 (LC50). The LC50values of ethanol extract of suren seeds, mahogany, mimba, and saga were 75, 84, 323 and 449 μg/mL, respectively. The four extracts had biological activity with LC50<1000 μg/mL, and suren seed extract was the most likely to have bioactivity because it had the lowest LC50value.
FENOL, FLAVONOID, DAN AKTIVITAS ANTIOKSIDAN PADA EKSTRAK KULIT BATANG PULAI (Alstonia scholaris R.Br) Zuraida; Sulistiyani; Dondin Sajuthi; Irma Herawati Suparto
Jurnal Penelitian Hasil Hutan Vol. 35 No. 3 (2017): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2017.35.3.211-219

Abstract

Alstonia scholaris R.Br belongs to family Apocynaceae, is one of medicinal forest plant as traditional medicine to treat fever, malaria, cough with phlegm, diarrhea, diabetes, cholesterol-lowering, intestinal worms, acute rheumatism, ulcers, and hypertension. One of the causes of heart disease, atherosclerosis, and cancer is oxidative stress. The stress can be cured or reduced by taking antioxidant. Flavonoid, a phenol compound class, is one of the secondary plant metabolites that function as antioxidant. This paper determines total levels of phenol, flavonoid, and antioxidant activity of Alstonia *stem bark extract (Alstonia scholaris R. Br). Quantitative determination of total phenolics with the folin-ciocalteu method expressed as mg of gallic acid equivalent (GAE) per gram of extract, total flavonoids content by AlCl₃ method expressed as Quercetin equivalent (QE), and in vitro antioxidant activities with DPPH (2,2-diphenyl-1-picrylhydrazyl) method expressed in terms of IC₅₀ (inhibition concentration). Results show that extraction of three replicates in maceration with 96% ethanol yielded 4.19% filtrate. The total phenolic content was 51.50 mg GAE /g extract, while the total flavonoid content was 0.35 mg QE /g extract. IC₅₀ value of antioxidant activity assay of stem bark extract was 211.54 µg/mL.
Co-Authors ADIL, AHMAD Ahmad Baparki Akmalia, Putri Alaziz, Farchan Anggraini, Hesty Wahyuni Apit Fathurohman Ayu Anora Cut Agusniar Dilla Febriani Dondin Sajuthi Ellis Susanti Ellya Roza Erli Tarona Putra Febrina Arfi Hariswan Putera Jaya Irma Herawati Suparto Khairun Nisah M. Fadli Maisufah Maisyuri Makawiyah Maryana Minta Wahyuningsih, Yayuk Mochamad Ari Saptari Muhammad Arafah Muhammad Arfan Muhammad Multazam Mustaqim, Hendri Mutammimul Ula Novaria, Novi Nur Azizah Nur Sari Permana, Atna Pitaloka, Novalingga Selviliani Silvalia Rahma Pratiwi Sinta Puji Lestari Sri Ramadhana, Sri Sulistiyani Susanty, Yunita Ery Syibral Malasyi Taobah Ramdani, Hasbi Vevbi Apriyani Wasdiyanta Yiyin Widia Sari Yusmita, Fifi Yusnidar