SIFAT PULP CAMPURAN KAYU RANDU DAN TUSAM PADA KONSENTRASI ALKALI AKTIF YANG BERBEDA
Abstract: This study aims to
determine the content of extractive substances based on age andlocation heights
on the stem. The introduction of the nature and chemical compositionof wood is
one of the basic assessment of the use of wood. By knowing the content of extractive
substances based on age and height location on the trunk. Be expected coconut
wood, forest products are expected information technology allows the oil
industry serve as a nutrient such as sawn boards, cement board and furniture.
Based on the function of extractive substances eksraktif divided into primary
and secondary extraction. Substance is primary extractive extractive substances
dissolved in cold water extraction and
hot water, extractive content in this group are seen at the end. Extractive dissolved
in cold water extraction on the tree with the age of 30 years old ± 3.1% and
the tree age of 40 years old ± 1.87%. Extraction using hot water extractive
content in the tree with the age of 30 years ± extractive content on bigger tip
to the treatment of other parts of the value of extractive content of 28.27%,
while the 40 years old tree extractive content of 11.67%. The value of content
in the primary extraction is caused by a function of extraction is used by
plants for growth while other types of extraction is estimated as dissolved
mineral, salts, sucrose, polysaccharides, starch, gum, soluble carbohydrates,
proteins and vitamins. The big difference in the content of the primary
extraction of water extraction due to cold and hot water at ambient conditions
extractive was dissolved in cold water extractives that have low molecular
weight and a bit of dye, while the hot water to an increase in temperature
accelerates the reaction and all the soluble extractive in cold water will be
dissolved in hot water extraction. The amount of extractive properties will
provide a more durable high when thesesubstances are toxic extractive and will
cause damage to the timber if the content ofextractives contained in wood is
the favored extractive substances of insects.
Penulis: Yan Pieter Theo
Kode Jurnal: jpkehutanandd110033
