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PENGARUH KADAR PEREKAT DAN JENIS BAMBU TERHADAP SIFAT FISIS DAN MEKANIS PAPAN PARTIKEL Arhamsyah Arhamsyah; Nazarni Rahmi
Jurnal Riset Industri Hasil Hutan Vol 2, No 1 (2010)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (168.348 KB) | DOI: 10.24111/jrihh.v2i1.913

Abstract

Penelitian mengenai pengaruh kadar perekat dan jenis bambu terhadap sifat fisis dan mekanis papan partikel telah dilakukan. Penelitian ini bertujuan untuk mengetahui sifat papan partikel dari bambu ditinjau dari aspek teknis/ proses pembuatannya, sifat fisis dan mekanis, pengaruh jenis perekat dan jenis bambu terhadap papan partikel yang dihasilkan. Jenis bambu yang digunakan adalah bambu apus (Gigantochloa apus Kurz), bambu kuning (Bambusa vulgaris Schrad), dan bambu manis (Gigantochloa atter Kurz). Adapun jenis perekat yang digunakan adalah Urea Formaldehid (UF) dan Polyvinil Acetat (PVAc) dengan kadar perekat masing-masing 8, 10 dan 12% dari berat kering partikel bambu. Hasil penelitian menunjukkan bahwa perekat Urea Formaldehid (UF) dengan kadar perekat 12% dari berat kering partikel menghasilkan papan partikel bambu yang paling baik untuk semua jenis bambu.
The Characteristics of Bamboo Charcoal Derived from Bambusa vulgaris Schrad and Arundinaria gigantea (Walter) Muhl Growing in Different Types of Habitats Ratri Yuli Lestari, M.Env.; Dwi Harsono; Nazarni Rahmi
Jurnal Riset Industri Hasil Hutan Vol 10, No 1 (2018)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (318.875 KB) | DOI: 10.24111/jrihh.v10i1.3889

Abstract

Altitude is one of the factors that affect the growth of bamboo. Bamboo species used in this study was Bambusa vulgaris and Arundinaria gigantea. The objectives of this study are to investigate the effect of altitude to the characteristics of bamboo charcoal harvested from three different altitudes (Lumpangi, Banjarbaru/Martapura, Marabahan). Parameters tested in this study were moisture content, ash content, volatile matter, fixed carbon and calorific value. The result showed that altitute significantly affected the characteristics of bamboo charcoal. Bamboo charcoal from Banjarbaru/Martapura had the best characteristics than the charcoal produced from other locations. The moisture content, ash content, volatile matter, fixed carbon and calorific value of B. vulgaris were 0.77 %; 3.49 %; 8.63 %; 87.11 % and 7,331.05 kal/g. The moisture content, ash content, volatile matter, fixed carbon and calorific value of A. gigantea were 0.19 %; 12.46 %; 4.48 %; 87.11 % and 6,640.69 kal/g, respectively.
Pengaruh Asap Cair Kayu Galam (Malaleuca leucadendra) dalam Bentuk Biodegradable Film terhadap Pengawetan Ikan Gabus (The Effect of Liquid Smoke Galam (Malaleuca leucadendra) in Biodegradable Film Form as Fish Cork Preservation) Rais Salim; Nazarni Rahmi
Jurnal Riset Industri Hasil Hutan Vol 9, No 2 (2017)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (355.381 KB) | DOI: 10.24111/jrihh.v9i2.3391

Abstract

Liquid smoke is a liquid product made from the condensation of smoke from carbonization process of lignocellulosic material. Liquid smoke of wooden galam (Melaleuca leucadendra) is a material that can be used as a natural preservative on fish. The use of an edible film packaging with the addition of liquid smoke of wooden galam is a good alternative to improve the durability and quality of fish during storage. This research is aimed to determine the effect of liquid smoke of wooden galam in biodegradable film for fish preservation. The edible film formulas were gelatin-pectin (AB), gelatin-smoke liquid (AC), and gelatin-pectin-smoke liquid (ABC) and compared with control (without treatment). The parameters of fish storage observed were pH measurement, Total Volatile Base-Nitrogen (TVBN), and microbiological test. The result after 10 days of storage showed that the pH value were 5.45 incontrol, AB 5.43, AC 5.47 and ABC 5.46; theTVBN values were 48 mgN/100gin control, AB 32 mgN/100g, AC 36 mgN/100g and ABC 36 mgN/100g; as well as microbiological testing, TPC value on 15x106 CFU/g, AB 11x103 CFU/g, AC 18.5x103 CFU/g, and ABC 4x103 controls and Coliform controls 5.0x106, AB 3.5x102, AC 1.0x101, and ABC 4.0x100. The treatment of liquid wooden galam smoke in a form of biodegradable film was capable to maintain the quality of fish better than without treatment shown in the low microbiological testing values (TPC and Coliform), eventhough it did not show significant effect in maintaining the TVB value during 10 days storage at ± 4° C. Keywords:  liquid smoke, Coliform, edible film, pH, TPC
Aplikasi ekstrak sarang semut sebagai senyawa antimikroba dan antioksidan pada permen karet herbal [Application of ant nests (Myrmecodia sp.) extract as antimicrobial and antioxidant compounds in herbal gum] Nadra Khairiah; I Dewa Gede Putra Prabawa; Saibatul Hamdi; Nazarni Rahmi
Jurnal Riset Industri Hasil Hutan Vol 11, No 1 (2019)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.941 KB) | DOI: 10.24111/jrihh.v11i1.4806

Abstract

Ant nests (Myrmecodia sp.) are one of the medicinal plants that have many benefits for health. Ant nests are widely used as antimoicrobial, antidiabetic, anticancer and antiimplantation because ant nests usually contains chemical compounds such as flavonoids, terpenoids, saponins and polyphenol tannins. Flavonoids can be used as antioxidants, antiangiogenic, and antimicrobials. Many products can be developed from the extract, such as tea, powder and ant nest capsules. Another product innovation that needs to be developed is gum. It is important to conduct research to determine the optimum formulation of ant nest extract as an additional ingredient on candy products (gum). This study aims to determine the antimicrobial and antioxidant activities of ant nests extract and maximize the use of ant nest extractas at additional raw material for high quality gum. The ant nests were extracted using 70% ethanol. The concentrated extract was tested for antimicrobial activity in four types of pathogenic bacteriaEscherichia coli ATCC 25922, Staphylococcus aureus ATCC 6538, Streptococcus mutans ATCC 25175, Pseudomonas aeruginosa ATCC 9027, and Salmonella typhimurium ATCC 14028); antimicrobial positive control was tested using chloromphenicol and antioxidant activity positive control was tested with ascorbic acid (vitamin C). Dried ant nest extract was added to the gum mixture as much as 0.15% and 3% and then the quality was tested based on the parameters according to the quality standard of gum. The results of this study showed that ant nest extract had effective antibacterial activity in gram-positive and gram negative bacteria with an inhibitory zone of 10-13.5 mm. The high antioxidant activity of ant nests (85.90%) proven that ant nests had the potential as an natural antioxidants added in food. The addition of 0.15% and 0.3% extracts in chewing gum generally produced gum that met the quality standards of chewing gum, although the moisture content was slightly higher than the maximum limit of the standards.
Hydrogel glucomannan-xanthan gum wound dressing with Caesalpinia sappan extract as antibacterial compound Nadra Khairiah; Nazarni Rahmi; Rais Salim
Jurnal Riset Industri Hasil Hutan Vol 14, No 1 (2022)
Publisher : Kementerian Perindustrian

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24111/jrihh.v14i1.7253

Abstract

The development of a wound dressing is necessary to accelerate wound closure, promote tissue growth, and reduce scar formation. Hydrogel can be used as an ideal wound dressing. There are many materials that can be used as ingredients in the manufacture of hydrogels such as glucomannan and xanthan gum. The addition of antibacterial compound to wound dressing hydrogels such as sappan wood extract can be used to further improve the wound healing process, and avoid skin infections. In this study, hydrogel glucomannan-xanthan gum was prepared using a concentration of 1% xanthan gum: glucomannan (50:50 and 60:40), 2% xanthan gum: glucomannan (50:50 and 60:40) with the addition of 2% sappan wood extract. Furthermore, the water content, FTIR and antibacterial activity were determinate. The data showed that the hydrogel had excellent physicochemical and antibacterial properties. All the formulation of xanthan gum and glucomannan can formed hydrogels at 37° C and lower. The FTIR result showed the formation of new hydrogen bonds between glucomannan and xanthan gum. The hydrogel added with secang extract was able to inhibit E. coli and S. aureus with an inhibition zone of 7.0 -7.5 mm and 16.25-18.50 mm, respectively. Hydrogel was suitable for application as a wound dressing.