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All Journal Jurnal Penelitian Hasil Hutan Jurnal Teknik Sipil Journal of Science and Applicative Technology Jurnal Ilmu dan Teknologi Kayu Tropis PERENNIAL Jurnal Penelitian Hasil Hutan Jurnal Sylva Lestari Jurnal Ilmu Kehutanan Jurnal Ilmu Kehutanan International Journal of Renewable Energy Development

Deded Sarip Nawawi

Fakultas Kehutanan, Institut Pertanian Bogor, Kampus IPB Darmaga Bogor 16680.

Author-ID : 329205

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Electrical & Electronics Engineering Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering

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Stabilitas Fisikokimia dan Sifat Antipenuaan Kulit Formula Krim Berbahan Aktif Alami (Physicochemical stabilities and Skin Antiaging Properties of Bioaktive-based Cream Formulas) Rita K Sari; Nyoman J Wistara; Deded S Nawawi; Nopen Meisaroh; Ietje Wientarsih; D R Agungpriyono; L N Sutardi; Mawar Subangkit; Vetnizah Juniantito
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 15, No 1 (2017): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The purpose of this study was to analyze the physicochemical stabilities and in vivo antiaging properties of the cream formulas of F1, F2, and F3 which contained the active compound of 0.1% 0.18, and 0.36%, respectively. The active compound was the combination of ethyl acetate fraction of Toona sinensis, Centella asiatica, and Acacia mangium leaf (1:2:1). For physicochemical stability tests (color, odor, acidity, and antioxidant activity), the creams were stored for 21 days in the refrigerator, room temperature, and extreme temperature (±40 ⁰C). For in vivo antiaging test, the mice skin were smeared with cream and UV irradiated for 15 minutes per day. After two and four weeks, the mice skins were biopsied. The results showed that the physicochemical properties of creams stored in the refrigerator were stable. The storage of creams at room and extreme temperature decreased the physicochemical properties. The application of cream formulas on mice skin after two to four weeks were able to increase the thickness of epidermis, but has not been able to increase the collagen skin of mice.Keywords: Acacia mangium, Centella asiatica, ethyl acetate fraction of leaf, physicochemical and antiaging properties of cream, Toona sinensis

Perubahan Kadar Komponen Kimia Bambu Andong akibat Perlakuan Steam (Change of Chemical Components Content in Andong Bamboo due to Steam Treatment) Muhammad I Maulana; Deded S Nawawi; Nyoman J Wistara; Rita K Sari; Siti Nikmatin; Sena Maulana; Se-Hwi Park; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 1 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Steam and rinsing treatment with water and 1% NaOH solution of andong bamboo strands have been known to improve physical and mechanical properties of its oriented strand board (OSB). The improvement of bamboo OSB properties might be caused by the change of chemical components content during steam and rinsing process. This study aims to measure the changes of chemical components content in andong bamboo (Gigantochloa pseudoarundinacea) due to steam treatment and rinsing with water or sodium hydroxide solution. Samples was taken from andong bamboo stem without bark and node part. The treatments of samples were steam at 126 ° C for 1 hour, steam and rinsing with water, and, steam and rinsing with 1% NaOH, respectively. Air-dried samples were, then, subjected to mill in order to get 40-60 mesh particles size, which was used for chemical components analyses. The results showed that steam and rinsing with water or 1% NaOH solution treatment reduced hemicellulose and extractive contents (dissolved in cold water, hot water, ethanol-benzene and NaOH 1% solution), whereas alpha-cellulose and lignin were relatively stable. Steam and rinsing treatment generally increased the pH value of bamboo samples.

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

The Change of Wood Acidity during Drying Process Deded S Nawawi; Trisna Priadi; Benny Murwentiano
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 10, No 2 (2012): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Wood acidity is an importance factors in the wood processing and utilization. The acidity of wood might change due to some factors such as moisture, drying, and storage time of wood. The wood acidity of two wood species; sengon (Paraserianthes falcataria) and manii (Maesopsis eminii) and its change by drying process were investigated with respect to pH value and buffering capacity. Drying of wood was carried out on 28 and 60 oC for 24, 48, 72 and 144 h, respectively. The drying of wood was able to change of wood acidity. The acidity of wood increased by increasing the drying temperature and time. On the temperature of 60 oC, a lower pH value and higher bufering capacity of wood were obtained for longer time of drying. Manii wood was more acidic than that of sengon wood.Key words: bufering capacity, pH value, wood acidity, wood drying

The Color Change of Jabon Wood Stained by Bark Extract of Samak Wood (Syzygium inophyllum) Muflihati Muflihati; Deded S Nawawi; Istie S Rahayu; Wasrin Syafii
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 12, No 1 (2014): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

The water soluble extract of samak (Syzygium inophyllum) bark was applied as natural dye for jabon wood (Anthocephalus cadamba). Ten percent of the extract concentration was used for staining of jabon wood by soaking methods for 74 h at room temperature, and for 3 h at 70 oC, respectively. The stained jabon wood performances were evaluated as the color change and stability by hot water leaching test. The stained and leached woods were assessed by determination of color changes using CIELab method and FTIR analysis. Based on the CIELab analysis, the brightness (L* value) of stained jabon wood decreased, and tend to more reddish (a* value increased) and yellowish (b* value slightly increased) compared to these of unstained wood, as the results, the color of jabon wood changed from light grey to reddish orange after staining with samak bark extract. The leaching test of stained wood to hot water changed the color from reddish orange to dull orange. FTIR analysis indicated that part of the extract stained jabon wood was quite stable to hot water treatment.Key words : bark extract, jabon wood, natural dye, samak wood, Syzygium inophyllum

Sifat Fisis dan Mekanis Oriented Strand Board Hibrida Bambu Pada Berbagai Shelling Ratio (Physical and Mechanical Properties of Hybrid Bamboo Oriented Strand Board at Various Shelling Ratios) Rynaldo Davinsy; Sena Maulana; Muhammad I Maulana; Elvara D Satria; Deded S Nawawi; Rita K Sari; Wahyu Hidayat; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 17, No 2 (2019): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51850/jitkt.v17i2.473

Hybrid Bamboo Oriented Strand Boards (OSB) were produced to improve bamboo OSB's physical and mechanical properties. Shelling ratio adjustment of the strand type combination could determine the optimal physical and mechanical properties of hybrid bamboo oriented strand boards (OSB). The purpose of this study was to evaluate the physical and mechanical properties of hybrid betung and andong bamboos OSB at various shelling ratios. Steam modified strands of betung and andong bamboo were used as an outer layer and core layer, respectively. Hybrid bamboo OSBs were prepared with 0.7 g cm-3 target density and 8% phenol-formaldehyde resin content. Three layers of OSB were made with outer: core shelling ratios of 30:70, 40:60, 50:50, and 60:40. The physical and mechanical properties of the OSB were tested referring to the JIS A 5908-2003 standard. The targeted board density was achieved and the physical properties of all hybrid bamboo OSB have met the requirement of CSA O437.0 (Grade O-1) standard criteria. The parallel modulus of elasticity (MOE) and modulus of rupture (MOR) increased with increasing outer layer ratio. However, the perpendicular MOE and MOR decreased with increasing outer layer ratio. The internal bonding (IB) of the OSB with a shelling ratio of 30:70 and 40:60 met with the requirement of the CSA O437.0 (Grade O-1) standard.

Perubahan Kadar Komponen Kimia pada Tiga Jenis Bambu Akibat Proses Steam dan Pembilasan (Chemical Components Changed in Three Bamboo Species Treated by Steaming and Washing Processes) Rio A Murda; Deded S Nawawi; Sena Maulana; Muhammad I Maulana; Se-Hwi Park; Fauzi Febrianto
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 16, No 2 (2018): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Bamboo has good prospects for composite raw materials such as for Oriented Strand Board (OSB) product. Previous research has shown that steam and rinsing with water and 1% NaOH solution treatments of strand improved the properties of OSB, which might be caused by changing in the chemical components content of bamboo. This study aimed to determine the chemical components content change of sembilang bamboo (Dendrocalamus giganteus Munro), black bamboo (Gigantochloa nigrocillata Kurz.), and tali bamboo (G. apus (Bl.ex Schult.f.)) due to steam and rinsing treatment. The chemical components of bamboo were analyzed referring to the Technical Association of the Pulp and Paper Industry standards (TAPPI). The results showed that the most significant changes in the chemical components content of bamboo occured for holocellulose, hemicellulose, extractive contents, and pH values. The decreasing of hemicellulose, extractive contents, and increasing pH values due to the steam and 1% NaOH rinsing treatment may improve the adhesion quality of OSB.

Sifat Fisis dan Mekanis Papan Partikel Bambu Betung dengan Perlakuan Perendaman Asam Asetat Fauzi Febrianto; Dwi R. Endriadilla; Deded S. Nawawi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 14, No 1 (2016): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Bambu dapat dijadikan sebagai salah satu alternatif subsitusi bahan baku kayu. Salah satu produk yang dapat dikembangkan dari pemanfaatan bambu adalah papan partikel bambu. Upaya peningkatan mutu produk dan efisiensi proses dilakukan dengan perlakuan terhadap bahan baku. Penelitian ini bertujuan untuk mengkaji pengaruh perendaman partikel bambu dalam asam asetat terhadap sifat fisis dan mekanis papan partikel dari bambu betung. Perendaman asam asetat dilakukan dengan tiga variasi konsentrasi yaitu 1, 2 dan 3%. Perekat yang digunakan adalah perekat urea formaldehida (UF) dengan kadar 10%. Target kerapatan ditetapkan 0,70 g cm-3. Pengujian sifat fisis dan mekanis papan partikel mengacu pada standar JIS A 5908:2003. Perlakuan perendaman asam asetat meningkatkan sifat fisis papan partikel, walaupun masih belum memenuhi standar JIS A 5908:2003. Sifat mekanis papan partikel yang dihasilkan memenuhi standar JIS A 5908:2003 untuk modulus of rupture (MOR), internal bond (IB) dan kuat pegang sekrup. Peningkatan konsentrasi asam asetat menyebabkan penurunan sifat mekanis papan.

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

Variation of Tensile Strength and Cell Wall Component of Four Bamboos Species Nareworo Nugroho; Effendi T Bahtiar; Dwi P Lestari; Deded S Nawawi
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 2 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Bamboo is an alternative material of timber for building construction and furniture. The information of basic characteristic of bamboo is very important regarding to effective utilization of bamboo. This research aims to evaluate the variation of tensile strength and its relation to chemical cell wall component of bamboos. Four bamboos species namely andong (Giganctochloa psedoarundinaceae), betung (Dendrocalamus asper), mayan (Gigantochloa robusta), and tali (Gigantochloa apus) bamboos were subjected to analysis of its hollocellulose, cellulose, lignin, and tensile strength. Bamboo samples were taken from internode and node of middle section of bamboos stem.The results showed that the tensile strength of bamboo was influenced by chemical components of cell wall. The high content of alpha-cellulose and lignin contributed to high tensile strength of bamboo. Internode section of bamboo stem exhibited to have a higher tensile strength compared to node section.Key words: alpha cellulose, bamboo cell wall components, lignin content, tensile strength

Co-Authors Abi K Arif Adesna Fatrawana Adesna Fatrawana Adesna Fatrawana Aginsa T. Putri Akhiruddin Maddu Anak Agung Istri Sri Wiadnyani Anjar A Widyorini Anne Carolina Benny Murwentiano Cahyo Werdiningsih D R Agungpriyono Dede Hermawan Deni Darmawan Deni Setiawan Denni Prasetia Devi Armilasari Dewi R Agungpriyono Dwi P Lestari Dwi Premadha Lestari Dwi R. Endriadilla Effendi Tri Bahtiar Eko S Pribadi Elvara D Satria Erika Novriyanti Esti Prihatini Fabianus Ranta Fauzi Febrianto Gustan Pari I Nyoman Jaya Wistara I Wayan Darmawan IETJE WIENTARSIH Imam Wahyudi Indrawan, Imam Wahyudi Ismayati, Maya Istie Rahayu Itje Wintarsih Jajang Suryana Kusumah, Sukma Surya L N Sutardi Laswi Irmayanti Lestari, Dwi Premadha Lina Karlinasari Marbun, Sari Delviana Marwanto Marwanto Maulana, Muhammad I Maulana, Sena Muflihati Muflihati Muhammad Iqbal Maulana Mustagfirin Mustagfirin Nam-Hun Kim Naresworo Nugroho Nareworo Nugroho Nicken O Putri Ningrum, Riska Surya Nopen Meisaroh Nur Adi Saputra Nurhikmah Nurhikmah Park, Se-Hwi Rahmi Mauladdini Ratih, Damayanti Rio Ardiansyah Murda Rita K Sari Rita K Sari Rita Kartika Sari Rohmat Ismail Rynaldo Davinsy Satriyo H Wicaksono Saviska Luqyana Fadia Se-Hwi Park Silaban, Rosalia Silmi Mariya Siti L Gusvina Siti Nikmatin Subangkit, Mawar Surdiding Ruhendi Surjono Suryokusumo Suryokusumo, Surjono Sutiawan, Jajang Syamsul Arifin Tasya Saskia Trisna PRIADI Vetnizah Juniantito Wahyu Hidayat Wasrin Syafii

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