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Flavonoid Compounds of the Catechin from Wungu (Graptophyllum pictum (L.) Griff) Leaves and the Sun Protecting Factor Value Masyita Masyita; Endah Sayekti; Nurlina Nurlina
Jurnal Akademika Kimia Vol. 11 No. 1 (2022)
Publisher : Universitas Tadulako

The flavonoid content in wungu (Graptophyllum pictum (L.) Griff.) leaves has the potential as a sunscreen. The study aims to identify isolates of flavonoid compounds from wungu leaves and determine the SPF value. Steps are followed by extraction, fractionation, phytochemical test, separation by chromatography, identification, and SPF test. Extraction was carried out with methanol, followed by fractionation with n-hexane and dichloromethane. Dichloromethane fraction was chosen to proceed to the separation step because the results of the phytochemical test showed a vigorous color intensity for the content of flavonoids. The isolate (3.6 mg; dark green; amorphous; mp. 132-136 °C) was identified using a UV-Vis spectrophotometer using methanol as a solvent with a shift reagent NaOH, AlCl3, and a mixture of concentrated AlCl3 and HCl. Based on the UV-Vis spectra, the isolate was predicted to be flavonoid compounds belonging to the catechin group, which have a hydroxyl group at positions C-3, C-7, and do not have an ortho-hydroxy group in ring B. The SPF value of the isolate of 2.3244 at 100 ppm was determined in vitro and calculated by the Qian equation. Therefore, isolate was categorized as sunscreens that provided minimal protection

Oil Palm Empty Bunch Compost as a Source of Humic Acid Irma D. Oktavianta; Gusrizal Gusrizal; Nurlina Nurlina
Jurnal Akademika Kimia Vol. 9 No. 4 (2020)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2020.v9.i4.pp205-212

Humic acid is a fraction of humic compounds that are part of soil organic matter. In this research, humic acid is extracted from oil palm empty fruit bunches compost. Compost is made from the process of counting the empty oil palm bunches, which are composted until the compost is cooked. The humic acid extraction process uses a strong base extraction method. The principle of humic acid extraction is to dissolve the humic compound with a base solution and then separate it by adding an acid solution (HCl solution). The extraction of humic acid from oil palm empty fruit bunches compost produced blackish-brown humic acid with a yield of 4.895%. The result showed that the main functional group content of palm oil empty fruit bunches compost humic acid was the -OH group and phenol group which had a conjugated carbonyl group and a more aliphatic humic acid structure. Quantitatively, the functional groups of humic acid functional groups each amounted to a total acidity of 7,400 cmol/kg, a carboxylic group of 520 cmol/kg, and a phenolic -OH group content of 6,880 cmol/kg. Research results show that oil palm empty fruit bunches compost can be used as a source of humic acid.

Flavonoid Compounds of the Catechin from Wungu (Graptophyllum pictum (L.) Griff) Leaves and the Sun Protecting Factor Value Masyita Masyita; Endah Sayekti; Nurlina Nurlina
Jurnal Akademika Kimia Vol. 11 No. 1 (2022)
Publisher : Universitas Tadulako

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22487/j24775185.2022.v11.i1.pp31-38

The flavonoid content in wungu (Graptophyllum pictum (L.) Griff.) leaves has the potential as a sunscreen. The study aims to identify isolates of flavonoid compounds from wungu leaves and determine the SPF value. Steps are followed by extraction, fractionation, phytochemical test, separation by chromatography, identification, and SPF test. Extraction was carried out with methanol, followed by fractionation with n-hexane and dichloromethane. Dichloromethane fraction was chosen to proceed to the separation step because the results of the phytochemical test showed a vigorous color intensity for the content of flavonoids. The isolate (3.6 mg; dark green; amorphous; mp. 132-136 °C) was identified using a UV-Vis spectrophotometer using methanol as a solvent with a shift reagent NaOH, AlCl3, and a mixture of concentrated AlCl3 and HCl. Based on the UV-Vis spectra, the isolate was predicted to be flavonoid compounds belonging to the catechin group, which have a hydroxyl group at positions C-3, C-7, and do not have an ortho-hydroxy group in ring B. The SPF value of the isolate of 2.3244 at 100 ppm was determined in vitro and calculated by the Qian equation. Therefore, isolate was categorized as sunscreens that provided minimal protection

Reduksi minyak, lemak, dan bahan organik limbah rumah makan menggunakan grease trap termodifikasi karbon aktif T A Zaharah; Nurlina Nurlina; R RE Moelyani
Jurnal Pengelolaan Lingkungan Berkelanjutan (Journal of Environmental Sustainability Management) JPLB, Vol 1, No 3 (2017)
Publisher : Badan Kerjasama Pusat Studi Lingkungan (BKPSL) se-Indonesia bekerjasama dengan Pusat Penelitian Lingkungan Hidup IPB (PPLH-IPB)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36813/jplb.1.3.25-33

Minyak dan lemak termasuk dalam kategori limbah organik yang dapat mencemari lingkungan. Grease trap dapat memisahkan minyak dan lemak dari limbah, sehingga tidak menggumpal dan membeku yang dapat membuat pipa tersumbat. Pada penelitian ini, grease trap dimodifikasi dengan karbon aktif. Penelitian ini bertujuan untuk mengkaji efisiensi penggunaan grease trap yang dimodifikasi dengan karbon aktif untuk mereduksi minyak, lemak dan bahan organik dari limbah rumah makan. Penelitian ini dimulai dari preparasi karbon aktif, kemudian dilanjutkan ke tahapan persiapan alat, optimasi alat dan uji kinerja alat grease trap termodifikasi karbon aktif. Berdasarkan hasil pengujian, air limbah hasil output dari grease trap mengandung 1217,6 mg/L COD; 645 mg/L BOD; 156 mg/L TSS; dan 88,45 mg/L minyak dan lemak. Kandungan air limbah hasil output grease trap yang dimodifikasi dengan kolom sepanjang 10 cm yang berisi karbon aktif adalah COD 2,5 mg/L; BOD 19 mg/L; TSS 3,4 mg/L; minyak dan lemak tidak terdeteksi. Penggunaan kolom yang diisi dengan karbon aktif untuk dimodifikasi pada alat grease trap ternyata mampu menurunkan konsentrasi BOD, COD, TSS, minyak dan lemak dari limbah hingga ke nilai baku mutu air limbah bagi usaha dan/atau kegiatan domestik.

Cytotoxic Compound from Ethyl Acetate Fraction of Brucea javanica (L.) Merr Fruit Against HeLa Cell Line Nurlina Nurlina; Ari Widiyantoro
ALCHEMY Jurnal Penelitian Kimia Vol 11, No 1 (2015): March
Publisher : UNIVERSITAS SEBELAS MARET (UNS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/alchemy.11.1.108.58-71

The pure compound relatively (85 mg) was isolated from 4.5 kg Brucea javanica (L.) Merr. fruits sample. It was obtained from ethyl acetate fraction as a red-brownish amorphous solid of melting point 202-206 oC. Phytochemical screening of isolate showed positive result of terpenoid group. Based on analysis by UV, IR,1H-NMR and 13C-NMR spectroscopy and by comparison with known related compounds, indicated that isolate is quassinoid compound named Picras 3- en- 21- oat acid, 15-(acetyloxy)-13,20- epoxy-3-(ß-D- glucopyranosyloxy)-11, 12- dihydroxy -2, 16- dioxo -, methyl ester. Cytotoxic test using MTT assay method showed that compound have IC50 9,7 µg/mL.

Pembuatan lilin dari minyak jelantah: pelatihan peningkatan keterampilan dan nilai tambah produk rumah tangga bagi ibu rumah tangga di Kecamatan Entikong Kalimantan Barat Risya Sasri; Winda Rahmalia; Lia Destiarti; Adhitiyawarman Adhitiyawarman; Puji Ardiningsih; Afghani Jayuska; Berlian Sitorus; Anthoni B. Aritonang; Firman Shantya Budi; Nurlina Nurlina; Elliska Murni Harfinda; Ferdinand Hidayat
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 3 (2026): June
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i3.38992

Abstrak Program Pengabdian kepada Masyarakat ini dilakukan dengan tujuan untuk memberdayakan ibu rumah tangga di Kecamatan Entikong melalui pelatihan keterampilan pengolahan minyak jelantah menjadi lilin. Kegiatan ini menggabungkan aspek edukasi lingkungan, peningkatan keterampilan praktis, serta pembukaan peluang ekonomi skala rumah tangga. Dengan pendekatan partisipatif dan praktik langsung, diharapkan peserta tidak hanya mendapatkan pengetahuan baru, tetapi juga mampu mereplikasi proses pembuatan lilin secara mandiri. Pelaksanaan kegiatan PKM dilakukan dalam beberapa tahap antara lain, persiapan, pelaksanaan dan evaluasi program PKM. Tahap persiapan meliputi orientasi lapangan dalam rangka mengidentifikasi masalah mitra dan kesepakatan teknologi yang akan diimplementasikan, perijinan dan sosialisasi. Dilanjutkan dengan tahap pelaksanaan yang meliputi Pelatihan Pembuatan Lilin diawali dengan 1).Pengenalan bahan tambahan (asam stearat , pewarna, aromaterapi opsional); 2). Praktik pembuatan lilin dari minyak jelantah; 3). Pencetakan dan pendinginan lilin; 4). Tips keamanan dan penyimpanan. Pada tahap akhir dilakukan evaluasi secara kuantitatif dengan menganalisis kuesioner pengetahuan awal dan kuesioner evaluasi lanjutan. Dibuat bukti tertulis terkait keberhasilan pelaksanaan program. Kegiatan ini merupakan bentuk kontribusi Jurusan Kimia FMIPA Universitas Tanjungpura dalam mendukung pengelolaan limbah yang bertanggung jawab, pemberdayaan perempuan, serta pembangunan berkelanjutan di wilayah perbatasan. Kata kunci: lilin; minyak jelantah; perbatasan; pengabdian; pelatihan. Abstract This Community Service Program aims to empower homemakers in Entikong District through training in processing used cooking oil into candles. This activity combines aspects of environmental education, improving practical skills, and opening up economic opportunities on a household scale. With a participatory approach and direct practice, it is hoped that participants will not only gain new knowledge but also be able to replicate the candle-making process independently. The implementation of the PKM activity is carried out in several stages, including preparation, implementation, and evaluation of the PKM program. The preparation stage includes fieldwork in order to identify partner problems and technological agreements to be implemented, licensing, and socialization, and is continued with the implementation stage, which includes Candle Making Training, starting with 1). Introduction to additional materials (stearin, dyes, optional aromatherapy); 2). Practice making candles from used cooking oil; 3). Molding and cooling candles; 4). Safety and storage tips. In the final stage, a quantitative evaluation is conducted by analyzing the results of the pretest and posttest, as well as the questionnaire responses before and after the activity is implemented. Written evidence is made regarding the success of the program implementation. This activity is a contribution from the Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Tanjungpura, in support of responsible waste management, women's empowerment, and sustainable development in border areas. Keywords: candles; used cooking oil; borders; community service; training.

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