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Pengaruh Model Pembelajaran Problem Based Learning terhadap Kemampuan Pemecahan Masalah Siswa pada Materi Laju Reaksi di SMA Negeri 7 Gorontalo
Fitria Lamalani
; Netty Ino Ischak
; Masrid Pikoli
Jurnal Pendidikan Kimia, Fisika dan Biologi
Vol 1
, No 3
(2025)
This study aims to determine the effect of the Problem Based Learning (PBL) model on students’ problem-solving abilities in the reaction rate material at SMA Negeri 07 Gorontalo. The research employed a quasi-experimental method with a pretest-posttest control group design. The subjects consisted of two classes: class XI1 as the experimental group (using the PBL model) and class XI2 as the control group (using conventional learning). The instrument used was an essay test based on problem-solving...
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Identifikasi Senyawa Metabolit Sekunder Ekstrak Etanol Cangkang Sacha Inchi (Plukenetia volubilis L.)
Astria Endesei
; Yuszda K. Salimi
; Netty Ino Ischak
; Ahmad Kadir Kilo
; Hendri Iyabu
; La Ode Aman
Jurnal Pendidikan Kimia, Fisika dan Biologi
Vol 1
, No 3
(2025)
This study aimed to identify the secondary metabolite compounds present in the ethanol extract of Plukenetia volubilis L. (sacha inchi) shells through phytochemical screening and LC-MS analysis. The extraction was performed using the maceration method with 95% ethanol as solvent, resulting in a yield of 47.33%. Qualitative phytochemical tests revealed the presence of alkaloids, flavonoids, tannins, terpenoids, saponins, and glycosides in the extract. Further LC-MS analysis tentatively identified...
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Uji Organoleptik & Karakteristik Fisikokimia Serta Aktivitas Antioksidan Produk Susu Berbasis Kacang Sacha Inchi (Plukenetia volubilis L.)
Nurfadilah M. Kasim
; Netty Ino Ischak
; Yuszda K. Salimi
; Nurhayati Bialangi
; La Ode Aman
; Erni Mohamad
Pentagon : Jurnal Matematika dan Ilmu Pengetahuan Alam
Vol 3
, No 1
(2025)
This research aims to formulate and examine the physicochemical characteristics and antioxidant activity of sacha inchi (Plukenetia volubilis L.) as a plant-based milk. Moreover, this research also aims to conduct organoleptic tests on the products. The sacha inchi milk is formulated with five ratios: SI1 (sacha inchi 1:10 parts water), SI2 (sacha inchi 2:10 parts water), SI3 (sacha inchi 3:10 parts water), SI4 (sacha inchi 4:10 parts water), and SI5 (sacha inchi 5:10 parts water). Organoleptic...
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Inhibis Enzim α-Glukosidase dan α-Amilase dari Ekstrak Metanol Daun Buhu (Garuga floribunda Decne) Sebagai Antidiabetes
Nurvita Abdullah
; Netty Ino Ischak
; La Alio
; Yuszda K. Salimi
; La Ode Aman
; Ahmad Kadir Kilo
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Vol 3
, No 1
(2024)
The Garuga floribunda (Garuga floribunda Decne) plant is one of the species known for its various medicinal properties. This research aims to investigate the inhibitory activity of α- glucosidase and α-amylase enzymes and to determine the optimum concentration of the methanol extract of Garuga floribunda leaves as an antidiabetic agent. The leaves extraction is obtained through an extraction process using methanol as the solvent and tested for itsinhibitory activity against the α-glucosidase enz...
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Analisis Kadar Logam Berat Timbal (Pb), Kadmium (Cd), dan Merkuri (Hg) pada Sayuran Selada (Lactuca Satiya L.) yang Beredar di Pasar Sentral Kota Gorontalo
Merlin Darise
; Ishak Isa
; Mardjan Paputungan
; Netty Ino Ischak
; Erni Mohamad
; Nita Suleman
Algoritma : Jurnal Matematika, Ilmu pengetahuan Alam, Kebumian dan Angkasa
Vol 3
, No 1
(2024)
The purpose of this study was to determine the results of the analysis of heavy metal levels of Pb, Cd, Hg found in lettuce in the Central market of Gorontalo city. In this study, the object of research was the roots, stems and leaves of lettuce. The method used was wet deconstruction method using a mixture of HNO3 and HCl. After that the solution was cooled, then filtered. The sample solution that has been deconstructed is analysed by UV-Vis Spectrophotometry. The results of the analysis showed...
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