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Journal : JURNAL KIMIA MULAWARMAN

ANALISIS KANDUNGAN ASAM ASKORBAT DALAM BUAH NAGA MERAH (Hylocereus polyrhizus) DENGAN IODIMETRI Rahim, Abdul; Alimuddin, Alimuddin; erwin, Erwin
JURNAL KIMIA MULAWARMAN Vol 14 No 1 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

ABSTRACT???????????? The research to determine ?Analysis the Content of Ascorbic Acid in the Red Dragon Fruit by Iodimetri? Vitamin C concentration of postharvest red dragon fruit (Hylocereus Polyrhizus) and at the same time to recognize those the packaging could affected conten of obtained Vitamin C. Analysis process was conducted by iodimetric titration method through the sample of dragon fruit with saving period and packaging varied. The result of completed research find out there was are difference concentration of Vitamin C between packaged dragon fruit and without package, the concentration of Vitamin C in packaged dragon fruit was increase the concentration of Vitamin C from the first day (11,1680 mg/100 gram of sample) to the third day (14,8017 mg/100 gram of sample) and decrease until the fifth day (10,4743 mg/gram of sample), otherwise by another treatment without package the concentration of Vitamin C are increase from the first day (7,4928 mg/100 gram of sample) to the sixth day (19,6784 mg/100 gram of sample) and decreased until the eighth day (14,1395 mg/100 gram of sample).?Keywords? : Red dragon fruit (Hylocereus Polyrhizus), Vitamin C dan iodimetric titration.
ISOLASI DAN KARAKTERISASI SENYAWA TERPENOID DARI DAUN Macaranga beccariana Merr. Atmoko, Doni Prio; Marliana, Eva; Erwin, Erwin
JURNAL KIMIA MULAWARMAN Vol 16 No 1 (2018)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

Isolasi dan karakterisasi senyawa terpenoid dari fraksi etil asetat Macaranga beccariana Merr. telah dilakukan. Proses pemisahan pada fraksi etil asetat menggunakan kromatografi kolom gravitasi dengan metode elusi gradien. Isolat yang diperoleh diuji kemurniannya dengan menggunakan kromatografi lapis tipis dengan berbagai eluen yaitu n-heksana, kloroform, metanol, aseton dan etil asetat dengan nilai Rf secara berturut-turut yaitu 0; 0,75; 0,80; 0,87 dan 0,97. Senyawa terpenoid yang berhasil diisolasi berbentuk kristal putih dengan massa 0,0119 gram. Analisis dengan UV menghasilkan 1 puncak pada l 207,03 nm. Analisis senyawa dengan FT-IR mengindikasikan gugus fungsi -OH, C-H alifatik, C=C alifatik, C-O dan C=O. Berdasarkan dari hasil spektrum UV dan FT-IR maka senyawa isolat diduga mengandung senyawa terpenoid.
KAJIAN PERUBAHAN UKURAN RONGGA ZEOLIT RHO BERDASARKAN VARIASI RASIO Si/Al DAN VARIASI KATION ALKALI MENGGUNAKAN METODE MEKANIKA MOLEKULER Sari, Wahdana Kusuma; Gunawan, Rahmat; Erwin, Erwin
JURNAL KIMIA MULAWARMAN Vol 14 No 1 (2016)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

The structure modeling of zeolite RHO with variation of Si/Al ratio (5; 4.33; 3.8; 3.36; 3; 2.69; 2.43; 2.2; 2) and variation of alkaline cations (Li+, Na+, K+, Rb+, Cs+, Fr+) calculated by the molecular mechanics method has been investigated. The result shows that the structure of zeolite RHO with Si/Al ratio 3.36 has the most stable structure with a minimum energy 2652.0308 kcal/mol. The most stable structures of zeolite RHO impregnated with cation is that impregnated with Fr+ (alkaline) with a minimum energy 3006.6587 kcal/mol. The result shows that the zeolite RHO structure with cations Fr+ (alkaline) has the largest pore diameter which potentially has the best adsorption capacity.
Analisis Kadar Ion Pb2+ Pada Kangkung Darat (Ipomea Reptans Poir) Yang Diberi Air Lindi Dari Tpa Sampah Bukit Pinang Samarinda Hamsina, Hamsina; Yusuf, Bohari; Erwin, Erwin
JURNAL KIMIA MULAWARMAN Vol 15 No 1 (2017)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

The Research to determine the levels of Pb ion on swamp cabbage (Ipomoea reptans Poir) where each of media cropping given variation of leachate volume from TPA Bukit Pinang Samarinda for every 10 kg of soil has been carried out. Swamp cabbage was analyzed in the roots, stems and leaves at the age of 2 weeks to 4 weeks. The levels of Pb2+ ion was determined by dry destruction method, then measured by atomic absorption spectrophotometry. Pb2+ ion was accumulated on the ground kale plants. The highest levels of Pb2+ ion was contained in the roots of ground kale plants on media cropping which added 1.5 L of leachate at the age of 3 weeks of 2.0642 mg / kg wet weight. The lowest level of Pb2+ ion was contained in the leaves of control plants at the age of 2 weeks that was 0.0177 mg / kg wet weight.
ISOLASI DAN IDENTIFIKASI SENYAWA METABOLIT SEKUNDER DARI FRAKSI ETIL ASETAT PADA DAUN BERWARNA MERAH PUCUK MERAH (Syzygium myrtifolium walp.). Wati, Mila; Erwin, Erwin; Tarigan, Daniel
JURNAL KIMIA MULAWARMAN Vol 14 No 2 (2017)
Publisher : Jurusan Kimia Fakultas Matematika dan Ilmu Pengetahuan Alam Universitas Mulawarman

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Abstract

ABSTRACT            The study aims to find secondary metabolites isolated from leave of pucuk merah (Syzygium Myrtifilium Walp). The method used is maceration, fractionation, column chromatography, thin layer chromatography and identified using Fourier Transform-Infra Red (FT-IR)  and Gass Cromatography-Mass Spectroscopy (GC-MS). Phytochemical preliminary test of ethyl acetate fraction contained alkaloids, flavonoids, phenolic and triterpenoids, while the results of phytochemical test against stains 2 ethyl acetate fraction showed a positive test result contains the alkaloid compounds and compounds phenolic. The results of the analysis using cluster bonding FT-IR emergence OH (Hydroksi), C-H (Aromatic), CH3 (Aliphatic), and CO Ether, whereas the MS chromatograms obtained peak (peak) which have a similarity value above 90% according to willey09th.L database. estimates of the results of the analysis can be concluded that the stain 2 ethyl acetate fraction is estimated compound 2,4-di-tersier-butyl-fenol. Keywords: Secondary metabolites, Isolation dan fractionation, leave of pucuk merah (Syzygium Myrtifilium Walp.), 2,4-di-tersier-butyl-fenol.
Co-Authors . Amiruddin . Rusli A. A. R, Muhammad Taufik Abdul Rahim Abdul Rohman Afif Bintoro Agung, Putra Sunan Ahmad Fali Oklilas Ahmad Heryanto, Ahmad Ahmad Siswantara, Ahmad Ajib Susanto Al Azhar Alexander A. S. Gunawan, Alexander A. S. Alexander Richard, Alexander Alfian Noor Alimuddin Alimuddin Aman Sentosa Panggabean Amiruddin Amiruddin An Nisa, Redda Andayani, Ratih Diah Anderes Gui, Anderes Andy Andy Antonius Surbakti Antoro, Marwin Didik Ariusmedi, Ariusmedi Arman Sayuti Arneliwati, Arneliwati Arsindho, Yoarga Asdi Agustar Asmayanti, Andi Nur Atmoko, Doni Prio Azhari Azhari Badillah, Clara Fin Bayhakki Bayhakki, Bayhakki Bohari Yusuf budianto panjaitan Bukhory, M Ilham Al Daniel Daniel Daniel Tarigan Day, Diasttri Wahyu Rahmah DENI NOVIANA Deris Stiawan Desvita, Yenny Dewi Fatma Dewi, Tri Isyani Tungga Dian Masyitha Effendi Effendi Eka Srimulyati, Eka Eko Harry Susanto Elsavira, Radhika Erina Erina Erlina, Junia Etriwati, . Eva Marliana, Eva Eviliony, Eviliony Fadillah Irwansyah, Fadillah Fathra Annis Nauli Fauzi, Maulidya Hafsari febriyanti, eka Firman, H Fitri, Yanuari Eka Florensa Rosani Purba Frastantie, Dilla Frengky, Frengky Gaanty Pragas Maniam, Gaanty Pragas Gunanti Gunanti, Gunanti Gunawan Wibisono Hamdan Hamdan Hamdan, Suhaivi Hamdani Hamdani Hamsina Hamsina Harison, Alya Nathasya Hariyani, Fifi Hasneli, Yesi Henri D. Henri, Henri D. Hidayat Asta, Hidayat Hidayat Hidayat Hutabarat, Utami Maulina Hutagalung, Sandi Christopher Ibnu Utomo Ichsan, Tahayati Imam Imam Irawan W Kusuma, Irawan W Isna’im, Isna’im Jendrius Jendrius Jimmy G. Jimmy, Jimmy G. Jumaini, Jumaini Khoiri, Kms. M. Shofuan Kiyatmoko, Tomi Konadi, Alfian Krisman Krisman, Krisman Kurniawan, Rizal Eko Kusuma, Afif Yuda Kusuma, Irawan W. Laili, Miftachul Larasati, Indah Kurnia Laraswati, Yeni Lavintang, Mutiara Lazuardi, Auzan Leo Satya Phangestu, Leo Satya Ligaya Ita Tumbelaka Maharani, Anizza Dyah Kartika Mardiana Mardiana Marinda, Hening Ayu Maulia, Rahmi Maulizar, Ria Mila Wati, Mila Mokhamad Fakhrul Ulum Monita Olivia morow, meutya silviana Muhammad Fachrurrozi Muhammad Fajri Muhammad Syaipul Hayat Mulyadi Adam, Mulyadi Mustafa Sabri Muttaqien Muttaqien, Muttaqien Nainggolan, Maria Sonya Nauli Nastiti, Mahardika Niniarty Z. Djamal, Niniarty Z. Nirwana, Nirwana Noor Hindryawati, Noor Nora Vera Amanda, Nora Vera Noviyanti, Dea Sella Nunuk Hariani Soekamto Nuraedah Nuraedah Nurchayati, Sofiana Nurjanah, Laras Azrisa Nurul Huda Nuzul Asmilia Pasuluran, Nirwanto Permana, I Pratiwi, Noviara Sindi Prima, Benny Putra, I Gusti Agung Ngurah Arphan Eka Putra, Sandra Utama Putri, Arum Cantika RAHMAT GUNAWAN Rahmawati Rahmawati Ramadhana, Cut Erika Ramalis, T R Ramandhan, Akbar Ramandhan, Akbar Ramandhan Reza Firsandaya Malik Rilla Gantino Rinidar Rinidar, Rinidar Riri Novayelinda Robert Faber Rosmiati Rosmiati Rossi Passarella rusita rusita Rusli Rusli Rustaman, N Y Safitroh, MHD. Ali Saktioto Saktioto, Saktioto salomo, Salomo Salomo, Salomo Saparudin Saparudin Sari, Reny Pamela Sariningrum, Arlita Sarmayanta Sembiring Satria, Neti Sella, Nur Sembiring, Anatasya Sikumbang, Dinda Jasmal Sinta, Dwi Siti Anisatur Rofiqah, Siti Anisatur Siti Rahmalia Sitra, Elian Sofyan, Suhikma Sri Angky Soekanto Sri Maryani Sudirman Sudirman Sugandi Yahdin Sugito Sugito Suib Awrus Sunit Hendrana Susanto, Ari Murti Susilawati, Tri Susita, Farida Sutarno Sutarno Syafitri, Syafitri Syafruddin Syafruddin Syahadat, Rachmat Syakbaniah Syakbaniah, Syakbaniah Syarief, Firman T Armansyah, T tasmi, cut nila Tasruddin Tasruddin, Tasruddin Teuku Reza Ferasyi Thoha Firdaus, Thoha Tjodi Harlim Tresna Soemardi, Tresna Triva Murtina Lubis Ulfa, Ruvida Umbu, Dany Usman Malik Utami, Ghiena Rifka Utari, Heta Vivi Oktaviani Wahdana Kusuma Sari, Wahdana Kusuma Wahid Gunarto, Wahid Wasisto Utomo Widodo Budiharto Widya Sari Wijanarto Wijanarto Winni Astuti, Winni Wisdiarman, Wisdiarman Woferst, Rismadefi Wolfgang Straka Wong Foek Tjong Wongso, Calista Wulandari Saputri, Wulandari Yanuar Yanuar, Yanuar Yulia Irvani Dewi YUNALDI, HEFRI Yurika, Yurika Yusmeri, Yusmeri Zoelkaranain, M Dicky Zuhendri, Zuhendri Zulfan Saam Zulkarnaen Zulkarnaen Zulnuraini, Zulnuraini Zuraidawati Zuraidawati, Zuraidawati