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Haeruddin
Program Studi Pendidikan Kimia FKIP Universitas Halu Oleo, Kendari
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Uji Aktivitas Antioksidan dari Daun Kelor (Moringa oleifera) yang Diekstraksi Menggunakan Teknik Soxhletasi Siti Nurjanah; Haeruddin; Nurlansi
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

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Antioxidant Activity Tests of Moringa (Moringa oleifera) leaves which Extracted Using Soxhletation Technique has been carried out. This research aims to determine what types of secondary metabolites are contained in Moringa leaves using soxhletation technique and the antioxidant activity of Moringa leaves extracted using soxhletation technique. The secondary metabolites contained in the methanol extract of Moringa leaves were determined by the phytochemical method, while the antioxidant activity was tested by the DPPH method. Moringa leaves used are dried Moringa leaves which have been mashed. Total of 150 g of Moringa leaves were soxhelated for 7 hours with methanol as solvent. Then the extracts were collected and concentrated to obtain a thick extract of 30.624 g. The extracts were tested for phytochemicals and antioxidants. Phytochemical test results showed that the methanol extract of Moringa leaves extracted using the soxhletation technique contained alkaloids, flavonoids, steroids, Polifenols and saponins. Moringa leaves methanol extract extracted using the soxhletation technique has very weak antioxidant activity with an IC50 value of 857.6894 ppm.
Pemisahan Senyawa Glukomanan dari Umbi Kano (Dioscorea alata L.) Asal Wakatobi Menggunakan Pelarut Etanol Sari Harliana; La Harimu; Haeruddin
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

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Indonesia kaya akan keragaman tanaman sumber karbohidrat, sumber protein baik nabati dan hewani, serta sumber vitamin yang dapat dikonsumsi oleh masyarakat diantaranya umbi kano (Dioscorea alata L.). Umbi kano adalah salah satu varietas umbi-umbian yang memiliki potensi sebagai sumber bahan pangan karbohidrat non beras dan termasuk spesies tanaman uwi. Daerah yang termasuk penghasil umbi kano di Sulawesi Tenggara adalah Wakatobi. Tanaman Uwi (Dioscorea sp.) merupakan tanaman yang mengandung pati tinggi yaitu sebesar 60,3-74,4% dan mengandung glukomanan. Glukomanan merupakan polisakarida yang tersusun oleh satuan-satuan D-glukosa dan D-mannosa dan serat larut yang berfungsi sebagai pengemulsi (emulgator) pada industri makanan dan lainnya. Dalam penelitian ini, pemurnian tepung glukomanan dari umbi kano menggunakan kosentrasi bertingkat pelarut etanol. Untuk hasil pemisahan glukomanan dari tepung umbi kano dengan etanol diperoleh kadar glukomanan sebesar 73,4%. Analisis karakteristik glukomanan diperoleh kadar air 4,5%, kadar abu 1,48%, serat kasar 11,66%, protein 0,36%, pH 6.
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

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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 La Harimu La Rudi Nurlansi Reni Tri Febriyanti Sari Harliana Siti Nurjanah