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Jurnal Penelitian Hasil Hutan
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Search results for , issue " Vol 13, No 8 (1995): Jurnal Penelitian Hasil Hutan" : 2 Documents clear
APLIKASI METODE BOUCHERI UNTUK MENGAWETKAN BAMBU SEGAR Permadi, Pipin; Sumarni, Ginuk
Jurnal Penelitian Hasil Hutan Vol 13, No 8 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (891.739 KB) | DOI: 10.20886/jphh.1995.13.8.307-313

Abstract

This paper deals with reseach results on bamboo preservation using boucherie method. Two bamboo species,  namely andong (Gigantocloa verticillta Munro) and tali  (Gigantochloa apus Kurtz) were treated freshly using Borax (Na2B4O7. IOH2O)  solution with strenght solution of 5% as preservative. One of butt of the 8 length bamboo was immersed 10 cm in borax solution for 2. 4. 6, 8.  and  10  days and  the penetration of preservative were observed. The results showed  that  the  penetration  of  preservative  in  andong  bamboo for 2. 5, 6,  8,  and 10 consecutively  were 131,40 cm, 304,92 cm, 308.42 cm, 469,88  and 315,28 cm, while  in tali, bamboo  were 68,30 cm,  116.83   cm, 141,88 cm  and 128,17 cm,  respectively.  Maximum pnetration of preservative was achived in 8 days immersion for andong and 6 days tali.
PENINGKATAN KUALITAS KEMENYAN DENGAN MENGGUNAKAN PELARUT ORGANIK Wiyono, Bambang
Jurnal Penelitian Hasil Hutan Vol 13, No 8 (1995): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1352.93 KB) | DOI: 10.20886/jphh.1995.13.8.300-306

Abstract

This experiment is intended to improve the quality of the several types of benzoin by using an aceton solvent. The benzoin consisted of four samples with decreasing order of  quality: "mata kasar",   "mata halus", "jurur" and "abu". All of  these  samples  were obtained from Tarutung North Sumatera. A general linear models procedure in the SAS computer package was employed to analyze the effect of the acetone solvent extraction and benzoin quality on physico chemical properties of benzoin.Results showed that the acetone solvent extraction. type of benzoin and the interaction of both gave a highly significant effect on moisture contens. Softening points, number of saponifications, solubility in ethanol. ash contents.  benzoin acid, calculated as cinnamic acids; except the effect of interaction  on softening  points. Furthermore,  the LSD analysis between means indicated that there were significant  differences  on physico  - chemical properties  among the type of benzoin, exclude the means value of solubility in alcohol between "mata kasar" and "mata halus".  and between "jurur" and "abu". There was also no significant difference on an ash content means value between "mata kasar" and "mata halus".  This aceton solvent extraction increased tire quality of "mata kasar" and "mata halus" benzoin to meet the first and tire second quality requirement of the Indonesian National Standard.  respectively. However,  the softening point of jurur benzoin did not meet second quality requirement of this standard. Overall,  the aceton solvent extraction can improve the quality of benzoin as indicated by an increase  in benzoin value, calculated as cinnamic acids, and a decrease in dirt content value.

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