Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Sains: Jurnal Kimia & Pendidikan Kimia
La Rudi
Program Studi Pendidikan Kimia FKIP Universitas Halu Oleo, Kendari
Education

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Analisis Kualitas Virgin Coconut Oil (VCO) Hasil Fermentasi dengan Penambahan Jahe (Zingiber officinale Rosc) Rostina; Rahmanpiu; La Rudi
Sains: Jurnal Kimia dan Pendidikan Kimia Vol. 11 No. 2 (2022): EDISI DESEMBER 2022
Publisher : Jurusan Pendidikan Kimia FKIP Universitas Halu Oleo, Jl. HEA. Mokodompit Kampus Hijau Bumi Tridharma Andounohu Kendari, Gedung MIPA FKIP UHO Sulawesi Tenggara – Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Telah dilakukan penelitian mengenai Analisis kualitas Virgin Coconut Oil (VCO) hasil fermentasi dengan penambahan jahe (Zingiber officinale Rosc). Penelitian ini bertujuan untuk mendeskripsikan kualitas VCO hasil fermentasi dengan penambahan jahe emprit pada berbagai konsentasi, meliputi uji kadar air, bilangan peroksida dan asam lemak bebas. Metode yang dilakukan adalah metode analisis kuantitatif. Kadar air VCO dengan penambahan jahe emprit dari 3 perlakuan yang telah dilakukan yakni 50 mL, 100 mL, dan 150 mL berturut-turut sebesar 0,22%, 0,19%, dan 0,17% diperoleh kualitas VCO terbaik yaitu pada penambahan jahe emprit 150 mL. Bilangan peroksida VCO dengan penambahan jahe emprit dari 3 perlakuan yang telah dilakukan yakni 50 mL, 100 mL, dan 150 mL berturut-turut sebesar 2,18 meq/kg, 1,79 meq/kg dan 1,59 meq/kg diperoleh kualitas VCO terbaik yaitu pada penambahan jahe emprit 150 mL. Asam lemak bebas VCO dengan penambahan jahe emprit dari 3 perlakuan yang telah dilakukan yakni 50 mL, 100 mL, dan 150 mL berturut-turut sebesar 0,46%, 0,42% dan 0,39% diperoleh kualitas VCO terbaik yaitu pada penambahan jahe emprit 150 mL.
Uji Fitokimia Ekstrak n-Heksana Daun Belimbing Wuluh (Averrhoa bilimbi L.) Reni Tri Febriyanti; Haeruddin; La Rudi
Sains: Jurnal Kimia dan Pendidikan Kimia Vol. 11 No. 2 (2022): EDISI DESEMBER 2022
Publisher : Jurusan Pendidikan Kimia FKIP Universitas Halu Oleo, Jl. HEA. Mokodompit Kampus Hijau Bumi Tridharma Andounohu Kendari, Gedung MIPA FKIP UHO Sulawesi Tenggara – Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Research has been carried out "Phytochemical Test and Antioxidant Activity of n-Hexane Extract of Belimbing Wuluh Leaves (Averrhoa bilimbi L.)". This study aims to determine the class of secondary metabolites contained in starfruit leaves (Averrhoa bilimbi L.) which were extracted using n-hexane as solvent and to determine the antioxidant activity of starfruit leaves (Averrhoa bilimbi L.) which were extracted using n-hexane as solvent. The secondary metabolite compounds contained in starfruit leaves (Averrhoa bilimbi L.) were determined by the phytochemical method, while the antioxidant activity was determined by the 2,2-Diphenyl-1-Picrylhydrazine (DPPH) method. This study began with sample extraction using the soxhletation method, respectively 15 and 20 g of dried and mashed star fruit leaves, then soxhelated for 3-4 hours with n-hexane as solvent. The extraction was carried out for 7 repetitions so that the total sample of starfruit leaves extracted was 110 g. The extract resulting from soxhletation was then collected and concentrated to obtain a thick extract. The viscous extract obtained was then subjected to phytochemical tests and DPPH tests. Phytochemical test results showed that starfruit leaves extracted using n-hexane as solvent by soxhletation method only contained steroids. Starfruit leaf extract which was extracted using n-hexane solvent by soxhletation method had very weak antioxidant activity with an IC50 value of 3,229,213 ppm.
Co-Authors Haeruddin Rahmanpiu . Reni Tri Febriyanti Rostina