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All Journal Jurnal Ilmu dan Teknologi Kayu Tropis Jurnal Penelitian Hasil Hutan
Totok K Waluyo
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Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Materials Science & Nanotechnology

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Characterization of Cat’s Eye Dammar for Revision of Indonesia National Standard Rita K Sari; Nyoman J Wistara; Arif Wijayanto; Totok K Waluyo
Jurnal Ilmu dan Teknologi Kayu Tropis Vol 11, No 1 (2013): Jurnal Ilmu dan Teknologi Kayu Tropis
Publisher : Masyarakat Peneliti Kayu Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (253.547 KB) | DOI: 10.51850/jitkt.v11i1.106

Abstract

The present works was aimed to examine the concordance between trader quality classification and related SNI classification on dammar resin. The quality of six quality classes of dammar resin by trader classification was evaluated based on SNI 2900-1-2012 on visual classification and SNI 01-2900-1999 on physical and chemical characteristics, and then the resulting data were analyzed with ANOVA. The quality concordance of dammar resin based on trader classification with these of SNI for visual appearance and the size of agglomeration was 50 and 75-94%, respectively, and these of insolubility in toluene, melting point, ash content, and acid number were 61, 72, 11, and 100%, respectively. The characteristics of dammar resin for the a, b, and c quality classification were the same for the Krui traders, BKG Ltd., and WGM Ltd. However, they were different for the lower quality classification of d, e, and powder. It was also found the existence of dammar resin with characteristic values beyond the range of these established by SNI. SNI should not classify dammar resin quality based on visual appearance, but merely based on its physical and chemical characteristics. Physical and chemical characteristics values required by SNI should be revised.Key words: cat’s eye dammar, Indonesia National Standard, physical and chemical characteristics, quality classification, Shorea javanica
KARAKTERISASI DAN PEMANFAATAN ASAP CAIR DARI TEMPURUNG BUAH BINTARO ( Carbera manghas Linn.) SEBAGAI KOAGULAN GETAH KARET Djeni Hendra; Totok K Waluyo; Arya Sokanandi
Jurnal Penelitian Hasil Hutan Vol. 32 No. 1 (2014): Jurnal Penelitian Hasil Hutan
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2014.32.1.27-35

Abstract

Smoke liquid is a condensation product of raw material combustion containing cellulose, hemicellulose and lignin. Itproduces many compounds that have antimicrobial, antibacterial, and antioxidant effect such as organic acids and itsderivatives. Bintaro fruit shell is a waste of oil processing bintaro that are not utilized. Generally, latex coagulation usesformic acid or acetic acid that it's expensive and less environmentally friendly. Bintaro shell pieces is unused material andcontaining cellulose, hemicellulose, and lignin made into smoke liquid that is acidic and could reduce pH so the latex willcoagulate faster. The purpose of this study was to use smoke liquid of shell bintaro fruit shell as an alternative coagulant forrubber latex material.Smoke liquid wasmade using a modified drum kiln with a temperature of 400 C for 7 hours. Smoke liquid is purifiedby distillation up to 200 C. Smoke liquid that has been purified, further analyzed of its physical properties such as watercontent, viscosity, specific gravity, pH, acidity and phenol. Application of smoke liquid as rubber coagulant where doneusing smoke liquid concentration of 5%, 10%, 15%, 20%, while smoke liquid from coconut shell was used as acomparison. The results showed that the best results for coagulating was obtained from bintaro shell concentration of 20%and the fastest time for coagulating obtained from coconut shell smoke liquid concentration of 5%. Bintaro shell smokeliquid can be used as a rubber coagulant but for coagulation time isnot as fast as coconut shell smoke liquid.
Co-Authors Arif Wijayanto Arya Sokanandi Djeni Hendra I Nyoman Jaya Wistara Rita K Sari