SIFAT-SIFAT KOPAL MANILA DARI PROBOLINGGO, JAWA TIMUR

Totok Waluyo, E S Sumadiwangsa, Pudji Hastuti, Evi Kusmiyati

Sari


Manila copal is originated from the exudate of Agathis sp. trees, which flows out through the tapping stimulation. Manila copal from Indonesia nowadays prevails nearly 80-percent share in the world market. One of the potential regions that produce manila copal in Indonesia is situated in Probolinggo, East Java.

The manila copal as such reveals particular physical and chemical properties and then is categorized as superior (U1) and primary (P) qualities, exemplified consecutively: color magnitudes at JO YR 813 (light gray) and 2.5 YR 611 (reddish gray), impurities 9.7 percent and 23.3 percent, softening point 144°C and 149°C, ash content 0.2 percent and 9.2 percent, acid number 244 and 209, saponification number 309 and 245, and specific gravity 0.91 and 0.88, respectively.

The qualities of Manila copal from Probolinggo is poor in qualities and could not meet Indonesian National Standard, particularly due to high impurities.

 


Kata Kunci


Kopal manila, Agathis sp., sifat fisiko-kirnia

Teks Lengkap:

PDF

Referensi


Ando, Y. dan B. Wiyono. 1988. Sifat-sifat kopal manila dari Pekalongan Timur dan Banyumas Barat. Jurnal Penelitian Hasil Hutan 5(6): 353 - 356. Pusat Penelitian dan Pengembangan Hasil Hutan. Bogor.

Anonimus. 1972. Natural organic material and related synthetic product. The Encyclopedia Material and Technology. Vol. V.

Anonimus. 1989. Kopal. Badan Standardisasi Nasional. SNI. 01 - 1681 - 1989.

Anonimus. 2001. Getah damar, pasang surut budidaya getah damar (kopal) Probolinggo.

Duta Rimba: 253/:XXV - Juli 2001. Perum Perhutani. Jakarta.

Sumadiwangsa, S. 1978. Sifat fisiko-kimia kopal manila. Laporan No. 125. Lembaga Penelitian Hasil Hutan, Badan Penelitian dan Pengembangan Pertanian, Departemen Pertanian. Bogor.




DOI: https://doi.org/10.20886/jphh.2004.22.2.87-94

Refbacks

  • Saat ini tidak ada refbacks.


JURNAL PENELITIAN HASIL HUTAN TERINDEKS DI:

Lebih banyak...


Copyright © 2015 | Jurnal Penelitian Hasil Hutan (JPHH, Journal of Forest Products Research)
eISSN : 2442-8957, pISSN : 0216-4329
JPHH is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.