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All Journal Jurnal Ilmu Pertanian Indonesia Jurnal Silvikultur Tropika (JST) Jurnal Sain Veteriner Public Health of Indonesia Indonesian Journal of Chemistry Biosaintifika: Journal of Biology & Biology Education Jurnal Pendidikan Sejarah dan Riset Sosial Humaniora (KAGANGA) Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) Jurnal Peduli Masyarakat Jurnal Kedokteran Universitas Palangka Raya Jurnal Sylva Lestari Jurnal Ilmu Kehutanan

Rita Kartika Sari

Departemen Hasil Hutan, Fakultas Kehutanan, Institut Pertanian Bogor Kampus IPB Darmaga Bogor, 16680

Author-ID : 373258

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Environmental Science Health Professions Immunology & microbiology Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Medicine & Pharmacology Public Health Social Sciences Veterinary Other

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Evaluasi Kondisi Komponen Pengaku pada Menara Pendingin dan Perkiraan Sisa Masa Pakainya Effendi T. Bahtiar; Wilis Wiryawan; Kholiyah Kholiyah; Rita K. Sari; Arinana Arinana; Naresworo Nugroho
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 1 (2016): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Menara pendingin merupakan sistem pendinginan yang melepaskan panas ke udara untuk menurunkan suhu air melalui mekanisme penguapan. Air panas ditumpahkan dari puncak ke dasar menara, melewati sirip-sirip sehingga air terpencar dan kontak dengan angin dingin. Penelitian ini ditujukan untuk mengukur degradasi komponen pengaku pada bangunan menara pendingin yang telah berumur 15 tahun, serta menduga sisa umur pakainya. Beberapa pengujian dilakukan antara lain identifikasi jenis kayu, uji sisaan bahan pengawet, pengukuran degradasi kerapatan, uji mekanis statis, dan uji rangkak. Kayu diidentifikasi sebagai Douglas fir (Pseudotsuga menziesii). Hasil pengujian menunjukkan bahwa dinding sel kayu telah terdegradasi, kerapatan kayu di lapisan luar telah menurun di banding kontrol, dan sifat-sifat mekanis kayu telah terdegradasi sehingga nilainya menjadi lebih rendah daripada spesifikasi NDS 2005. Uji creep juga menunjukkan bahwa kekuatan kayu terus menurun seiring dengan semakin lamanya jangka waktu pembebanan. Berdasarkan laju deteriorasi kayu dan penurunan kekuatan selama jangka waktu pembebanan, sebuah model matematika dibangun untuk menduga sisa masa pakai kayu. Model yang dibangun menghasilkan dugaan sisa masa pakai komponen pengaku yaitu 7 tahun lagi.

Bioactivity Test of Mindi Extractives (Melia azedarach Linn) Using Brine Shrimp Lethality Test Wasrin Syafii; Rita K Sari; Siti Maemunah
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 1 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The aims of this research were to determine the yield of extracts from continuous extraction of heartwood, sapwood, inner bark, branch, and leave of Toona sinensis in n-hexane, ethyl acetate, and methanol solvents and their bioactivity using brine shrimp lethality test (BSLT) was evaluated. The results indicated that the yield of leave, inner bark, branch, heartwood, and sapwood extracts were 11.0, 6.7, 1.9, 1.6, and 1.6%, respectively. The highest yield of extracts was obtained from extraction in ethyl acetate (16.1%), followed by methanol (3.5%), and n-hexane (3.1%). The BSLT tests showed that the ethyl acetate extracts of all tree parts have higher bioactivities (LC50 1-52 μg ml-1) than the n-hexane extracts (LC50 40-181 μg ml-1), and the methanolic extracts (LC50 49-1375 μg ml-1). The ethyl acetate extract from inner bark has the highest bioactivity (LC50 μg ml-1). The qualitative analysis detect the ethyl acetate extract from inner bark containing saponins, alkaloids, phenolics, flavonoids, triterpenoids, steroids, and glycosides.Key words: Artemia salina, bioactivity, brine shrimp lethality test, Toona sinensis

Aktivitas Larvasida Aedes aegypti Ekstrak Kayu Jati Hasil Ekstraksi Hidrotropi (Larvicidal Activity Against Aedes aegypti of Teak Wood Extracts from Hydrotropic Extraction) Rita K Sari; Idris N Iskandar; S Priambodo; Regita Pramesti; Livia T Amalia
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 15, No 2 (2017): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

This study aimed to determine the yield and chemical content of teak extracts from hydrotropic extraction and larvalidal activity test against Aedes aegypti. The teak wood powder was extracted with urea (U) and natirum acetate (NA) solutions at 1M and 2M with physical treatment of magnetic stirrer (MS) and microwave (MS). The composition of chemical compound of extracts were determined by GC-MS. The larvicidal activity test were conducted on insted larvae of A. aegypti mosquito III. The results showed that the yield of NA extracts were higher (1.08-2.31%) than U extracts (0.72-1.68%). The increased of solvent concentration increased the extract yield. The physical treatment of MS produced a higher extract than MW. The NA extracts were dominated by acetic acid (16.53-40.21%), whereas the U extracts contained various dominant compounds. Both NA and U extracts contained tectoqinon, eugenol, farnesol, o-methoxyl benzene alcohol, methoxydeugenol, 3-penten-2-one, and tetracosahexaene with different levels. The U extracts were detected containing tectoqinon (0.66-1.79%), while the Na extract which was extracted with 1M NA and got MW treatment was detected contain tectoqinon (0.42%). The NA extracts were classified as active as larvacidal to A. aegypti, while U extracts were classified as inactive as larvacidal to A. aegypti.Keywords: Aedes aegypti, hydrotropic extraction, larvacidal, teak wood extract

Antiproliferative Activities of Anthocephalus cadamba Extracts on Human Breast Cancer and Cervical Adenocarcinoma Cell Lines Rita K Sari; Devi Armilasari; Deded S Nawawi; Wayan Darmawan; Silmi Mariya
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 1 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The aim of this research was to evaluate the anticancer properties of methanolic extracts from inner bark and wood of jabon (Anthocephalus cadamba). The extracts were investigated in vitro bioassay for its possible antiproliferative activities on human MCF7 breast cancer cell line and HeLa cervical adenocarcinoma cell lines. The cell viability were assessed using microculture tetrazolium technique (MTT) colorimetric assay. The results showed that inner bark extract exhibited higher antiproliferative activity on MCF7 cancer cell line (IC50 91 μg ml-1) than wood extract (IC50 312 μg ml-1). But, antiproliferative activity of inner bark extract on HeLa cell lines was higher (IC50 5 μg ml-1). The inner bark extract is potential to be developed as anti cancer agent in cervical adenocarcinoma cancer therapy because moresecure against Vero normal cells (IC50 288 μg ml-1). Whereas compounds such as phenolic and fatty acid contribute to high antiproliferative activities of inner bark extract. The qualitative analysis detect the extracts containing flavonoids, triterpenoids, saphonin which are thought to contribute to the high antiproliferative activities of this extract.Keywords : Anthocephalus cadamba, antiproliferative activity, human MCF7 breast cancer cell line, HeLa cervical adenocarcinoma cell lines, Vero normal cell lines

Aktivitas Antioksidan dan Toksisitas Akut Zat Ekstraktif dari Residu Penyulingan Surian (Toona sinensis Roemor) Rita K Sari; Desi Melianti; Wasrin Syafii; Dewi R Agungpriyono
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 2 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The objective of this research was to determine the yield, antioxidant activity, acute toxicity, and phytochemical compound of extractives from left over distilling liquid and distillation residues of various part of surian (Toona sinensis). The extracts from the left over distilling liquid of leaves, heartwood, and sapwood were assigned as LL, HL, and SL, respectively, whereas LB, HB, and SB were respectively the extracts from leaves, heartwood, and sapwood of boiled solid residue. The yield of LL, LB, SL, HL, SB, and HB were 28.78, 10.18, 2.11, 1.74, 0.92, and 0.81% respectively. Based on antioxidant activity test, the LB, LL, and HL extracts were classified as very active with EC50 of 5.45, 5.70, and 5.91 mg ml-1 respectively. The SL was classified as active (EC50 32.36 mg ml-1), the SB and HB extracts were classified as inactive (EC50 > 100 mg ml-1). Based on acute toxicity test, LB is the best natural antioxidant because it was non toxic material (LD50 47752 mg kg-1 BW), while the LL and HL extracts were clasified as low toxicity with LD50 4518.56 and 1999.86 mg kg-1 BW (body weight). The LB extract contained phenol hydroquinone, flavonoids, and tannins (total phenolic content: 94 mg g-1 GAE).

Aktivitas Antibakteri Resin Pinus terhadap Staphylococcus aureus (Antimicrobial Activities of Pines Resin against Staphylococcus aureus) Rita K Sari; Irmanida Batubara; Mardho Tillah; Dudi Tohir
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 1 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Previous research showed that n-hexane extract of Pinus oocarpa resin was the most potential extract among extracts of Pinus resin from Indonesia as antibacterial against Staphylococcus aureus. The purpose of this study were to separate the active antibacterial component of n-hexane P. oocarpa resin extract and characterize the functional groups of its most active fractions. The component were separated by silica gel column chromatography and detected by antibacterial bioautography method. Fraction F1 is the most active from 11 fractions. Furthermore, F1 separated further by preparative thin layer chromatography and sephadex LH-20 column chromatography. Three fractions (F1.1.1-F1.1.3) retrieved from the separation by sephadex LH-20 column. Furthermore F1.1.2 had the minimum inhibitory concentration and minimum bactericidal concentration of 125 and 250 µg ml-1 respectively against S. aureus by microdilution method. Characterization of fraction F1.1.2 using Fourier transformed infrared (FTIR) spectrophotometer shows that this fraction allegedly containing diterpenoid compounds.

Aktivitas Antioksidan Ekstrak Daun Surian, Mangium, dan Pegagan serta Kombinasinya dalam Formula Krim (Antioxidant Activities of Mangium, Surian, and Pegagan Leaf Extracts and Its Combination in Cream Formulas) Rita K Sari; Nyoman J Wistara; Deded S Nawawi; Itje Wintarsih; Dewi R Agungpriyono; L N Sutardi; Mawar Subangkit; Vetnizah Juniantito
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 2 (2016): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The simplicia properties of toona (TS), mangium (AM), and centella (CA) leaves and antioxidant activities of their ethanolic leave extract and their combinations in cream formulas were examined in the present reserach. The ethanolic extracts were partitioned with n-hexane and ethyl acetate. The antioxidant activity of the fractions and their combinations were tested against DPPH. The best combination was formulated in F1, F2, and F3 cream formulas with 0.1, 0.18, and 0.36% of extract, respectively. The formulas antioxidant activity was then tested. The results showed that the water content, ash content, and acidic insoluble ash content of TS, AM, and CA simplicias were ±10%, 3.8-9.7%, and 0.9-1.2% respectively. The yields of n-hexane (FN), ethyl acetate (FEA), and residues (FR) fractions were 6-9, 2, and 5-6% respectively. The antioxidant activity of FEA, FR, and FN was very strong, strong, and weak to inactive, respectively. The best combination was the mixture of 2/3CA, 1/6AM, and 1/6TS (IC50 9 μg ml-1). The antioxidant activity of all cream formulas were higher than refered commercial cream. The IC50 values of formula 1, 2, and 3 were 1109, 596, and 202 μg ml-1, respectively, while the IC50 of refered commercial cream was 2372 μg ml-1.Keywords: antioxidant, centella, cream, extract, mangium, toona

Karakteristik Lignin Empat Jenis Bambu (Lignin Characteristic of Four Bamboo Species) Deded S Nawawi; Rita K Sari; Nyoman J Wistara; Adesna Fatrawana; Puji Astuti; Wasrin Syafii
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 1 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Lignin is one of the major component of bamboo, together with cellulose and hemicellulose, which may differ comparing to wood lignin. Lignin characteristics of four bamboos species, i.e. betung (Dendrocalamus asper), ampel (Bambusa vulgaris), andong (Gigantochloa nigrociliata), and tali (Gigantochloa apus) were investigated. As lignin characteristics; lignin content and proportion of lignin monomer were investigated by Klason method, UV spectrophotometry, and Pyrolysis Gas-Chromatography analysis, respectively. Lignin content of bamboos varies depending on species and position of sample. Bamboo lignin was categorized into syringyl-guaiacil-p-hydroxyohenil (S-G-H) lignin. There was high correlation between proportion of syringyl unit with acid-soluble lignin obtained during Klason lignin procedure.

Antidiabetic Activities and Identification of Chemical Compound from Samama (Anthocephalus macrophyllus (Roxb) Havil) Laela Nur Anisah; Wasrin Syafii; Gustan Pari; Rita Kartika Sari
Indonesian Journal of Chemistry Vol 18, No 1 (2018)
Publisher : Universitas Gadjah Mada

Samama (Anthocephalus macrophyllus) is one of a pioneer indigenous fast growing species in Indonesia which have been used as traditional medicine for various diseases. The objectives were to determine the yield extract, to analyze their antidiabetic activity by inhibition assay for α-glucosidase enzyme activity and chemical analysis with GCMS. Extraction of leaves, bark and wood samples were done by using ethanol 95%. Fractionation the most active ethanol extract was conducted by using n-hexane and ethyl acetate. The yield of ethanol extracts in leaves, bark and wood were 13.90%, 12.87%, and 2.18% respectively. Based on antidiabetic activity assay, the bark ethanol extract was the most active extract by the IC50 value of 5.86 μg mL-1. Phytochemical analysis on bark ethanol extracts showed that they contained flavonoid, quinon, triterpenoid, saponin and tannin which were assumed have high contribution in antidiabetic activities. The result of fractionation ethanol extract bark showed that the ethyl acetate fraction was the most active fraction (IC50 6.82 μg mL-1). GCMS analysis indicated the presence of dominant phenolic compounds such as pyrocatechol, antiarol, isopropyl myristate and phenol in which were suspected have antidiabetic activity. These results strongly suggested that ethyl acetate fraction of Samama bark was a potential natural source for antidiabetic agents.

Anti-Termite Activity of Melia azedarach Extracts Yanico Hadi Prayogo; Romi Irka Putra; Izza Firdausi Hadiyanto; Evie Nihayah; Wasrin Syafii; Rita Kartika Sari; Irmanida Batubara
Jurnal Sylva Lestari Vol. 10 No. 1 (2022): January
Publisher : Department of Forestry, Faculty of Agriculture, University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jsl.v10i1.549

Natural preservatives have been widely considered as non-synthetic materials that can prevent the biodegradation of wood due to subterranean termite attacks, namely Coptotermes curvignathus. Melia azedarach is a fast-growing species that has been widely studied for its antifeedant compounds and shows good potential to be developed as a biopesticide, especially as an anti-termite. This study aimed to identify the termicide and antifeedant properties of the wood, leaves, and bark extracts of Melia azedarach against subterranean termites and identify their bioactive compounds. The acetone extract from the three parts of the tree was fractionated. The most active fractions were selected from each part based on the percentage of termite mortality and antifeedant activity and analyzed for its bioactive compounds by pyrolysis GCMS. The ethyl acetate fraction of Melia azedarach bark exhibited strong toxic properties compared to other fractions. In the leaf section, the diethyl ether fraction showed the best termite repellent (antifeedant) properties. The anti-termite properties influenced phenolic compounds and organic acid that dominated the bark ethyl acetate fraction and leaf diethyl ether fraction. These findings show the great potential of bioactive compounds from biomaterials to be developed as a promising biopesticide. Keywords: anti-termite, bioactive compound, Melia azedarach, natural preservative

Co-Authors . Siswoyo A.A. Ketut Agung Cahyawan W Adesna Fatrawana Agus Ari Subagio Agus Hikmat Akbar, Mohammad Dhanny Alawiyah, Rufaida Ashiela Safira Amalia, Gradis Anak Agung Istri Sri Wiadnyani Andianto Anggara, Andhika Dwi Anggraini, Putri Dian Puspa Anne Carolina Apri Heri Iswanto Arinana Arinana Auliyah, Izzatul Bayu Febram Prasetyo D R Agungpriyono Deded Sarip Nawawi Desi Melianti Devi Armilasari Dewi R Agungpriyono Dewi R Agungpriyono Dudi Tohir Dyah Safitri Edhi Sandra Effendi Tri Bahtiar Ervizal A.M. Zuhud Eva Harlina Evie Nihayah Fauzi Febrianto Fillah, Muhammad Arda Fitrianum, Fadilah Gustan Pari Gustan Pari Gustan Pari Hamidi, Zikri Himmi, Setiawan Khoirul I Nyoman Jaya Wistara I Wayan Darmawan Idris N Iskandar IETJE WIENTARSIH Imam Wahyudi Indrawan, Imam Wahyudi Ina Winarni, Ina Intan, Yulice Soraya Nur Irdika Mansur Irmanida Batubara Istie Rahayu Itje Wintarsih Iwang Yusuf Izza Firdausi Hadiyanto Juliasman Juliasman Khamareta, Vita Ayu Tegar Khatami, Muh Najib Riza Kholiyah Kholiyah Kosei Yamauchi Kurnia Sofyan L N Sutardi Laela N. Anisah Laela Nur Anisah Livia T Amalia Lubis, Muhammad Adly Rahandi Maharani, Eisha Ira Manggar Arum Aristri Mardho Tillah Mardho Tillah Mardho Tillah, Mardho Maulana, Muhammad Iqbal Mayangsari, Citra Primavita Menik Sahariyani Milano, Rafi Yusuf Muhammad Adly Rahandi Lubis Muhammad Fadli Muhammad Hanafi Muhammad Iqbal Adi Baskara Muhammad Iqbal Maulana Naresworo Nugroho Nastavia, Chika Ngatno Ngatno Nirwana, Disna Laura Cahya Nopen Meisaroh Nugraha, Arifin Budiman Nur Azizah Nurhaliza, Nimas Putri Prasetijono, Purwito Soegeng Prayogo, Yanico Hadi Putri, Diah Anggun Febriana Rahma, Vira Fadhila Rahmawati, Anindya Intan Rahmi Utami Ramadhani, Hesa Haidar Regita Pramesti Riki Andika Rinawati Romi Irka Putra S Priambodo Saat Egra Saharda, Nadylla Mifta Ulrahmi Salina Febriany Santosa, Agus Dwi Aji Sari, Ratih Afrida Lismana Setyo Trisnadi Silmi Mariya Siti Aisyah Siti Maemunah Siti Nurjanah Siti Sa'diah Siti Sa'diah Sri Familasari Subangkit, Mawar Suparmi Suparmi Syamsul Arifin Tasyahuri, Syabila Aldiffah Tengku Muhammad Renzy Hariz Tohru Mitsunaga Umi Cahyaningsih Vetnizah Juniantito Wahyu Hidayat Wahyu Hidayat Wahyuningrum, Maeda Wahyuningrum, Maeda Wasrin Syafii Wibowo, David Adi Wilis Wiryawan Yanico Hadi Prayogo Yuliana, Kumala Putri Yusuf Sudo Hadi Zamzami, Romi

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