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All Journal Jurnal Penelitian Hasil Hutan Kreator Indonesian Journal of Forestry Research
Novitri Hastuti, Novitri
Pusat Litbang Hasil Hutan, Badan Litbang dan Inovasi, Kementerian Lingkungan Hidup dan Kehutanan (Ministry of Environtment and Forestry of Indonesia)
Agriculture, Biological Sciences & Forestry Decision Sciences, Operations Research & Management Education Engineering Industrial & Manufacturing Engineering Physics Other

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KUALITAS ARANG 6 JENIS KAYU ASAL JAWA BARAT SEBAGAI PRODUK DESTILASI KERING Hastuti, Novitri; Pari, Gustan; Setiawan, Dadang; Mahpudin, Mahpudin; Saepuloh, Saepuloh
Jurnal Penelitian Hasil Hutan Vol 33, No 4 (2015): Jurnal Penelitian Hasil Hutan
Publisher : Pusat Penelitian dan Pengembangan Hasil Hutan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20886/jphh.2015.33.4.337-346

Abstract

Enam jenis kayu asal Jawa Barat yaitu ki hiur (Castanopsis acuminatissima A.DC.), tunggeureuk (Castanopsis tunggurut), huru pedes (Cinnamomum iners Reinw.Ex Bl.), huru koja (Litsea angulata Bl.), ki kanteh (Ficus nervosa Heyne)  dan kelapa ciung(Horsfieldia glabra Warb) di destilasi kering pada suhu 450°C -500°C selama 5 jam di retort destilasi. Destilat dari destilasi kering berupa arang, ter dan asap cair dihitung rendemennya. Hasil penelitian menunjukkan kualitas arang dari 6 jenis kayu memenuhi standar Indonesia tentang arang kayu dan briket arang kayu dengan nilai kalor berkisar 6743-6795 kal/g, kadar karbon terikat berkisar 79,42%-82,37%. Rendemen arang berkisar 27,43%-33.55%.  Hasil analisis korelasi Pearson atas kadar lignin dan berat jenis kayu terhadap nilai kalor arang menunjukkan bahwa kadar lignin memiliki korelasi yang signifikan terhadap nilai kalor arang. 
FORMULASI BARU PEMBUATAN KERTAS BERBASIS SERAT AREN SEBAGAI POTENSI MATERIAL GRAFIKA DI MASA DEPAN Hastuti, Novitri; Rahmayanti, Handika Dany
Kreator Vol. 9 No. 2 (2022): Kreator
Publisher : P3M Politeknik Negeri Media Kreatif

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46961/kreator.v9i2.757

Abstract

Formulasi Baru Pembuatan Kertas Berbasis Serat Aren sebagai Potensi Material Grafika di Masa Depan telah dilakukan. Tahap awal pembuatan kertas dilakukan dengan membuat pulp dilakukan dengan cara metode kimia sulfat dengan mencampurkan larutan Natrium Hidroksida dan Sodium Sulfida masing-masing sebanyak 262,98 ml dan 116,67 ml dimasak menggunakan mesin rotary digester selama 2+2 jam dengan suhu 170°C. Perbandingan sampel dan larutan pemasak adalah 1:4. Selanjutnya pulp dicuci dan dikeringkan dengan mesin pengering. Sebelum dicetak pulp terlebih dahulu digiling hingga mencapai derajat kehalusan ideal suatu pulp yaitu 250-500 ml CSF. Kemudian pulp dicetak sehingga didapatkan lembaran kertas. Dari pengukuran morfologi menggunakan Scanning Electron Microscope dengan perbesaran 500x dan tegangan 10kV didapatkan ukuran serat kertas berbasis batang aren sebesar 20 mikron.
THE EFFECTIVENESS OF GLUCOMANNAN AND NANO ACTIVATED-CARBON AS HYPERCHOLESTEROL-LOWERING AGENTS Pasaribu, Gunawan Trisandi; Waluyo, Totok K.; Pari, Gustan; Hastuti, Novitri
Indonesian Journal of Forestry Research Vol. 7 No. 2 (2020): Indonesian Journal of Forestry Research
Publisher : Association of Indonesian Forestry and Environment Researchers and Technicians

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59465/ijfr.2020.7.2.155-164

Abstract

Porang (konjac) plants have long been used as a food source and traditional medicine. Glucomannan derived from porang has been utilised for various uses such as antidiabetic and antihypercholesterolemia agent. This paper studies the mixture of porang flour and nano activated-carbon and its effect on the cholesterol activity of rats. The mixture of porang and activated carbon were subjected to test for male Sprague Dawley rats to test the antihypercholesterolemia activity. The result showed that concerted anticholesterol activity of porang and nano activated-carbon revealed the cholesterol level decreases in rat's blood. However, the different treatments of unleached and leached porang either leached porang and nano activated-carbon applied in the experiments showed that the levels of cholesterol decrease were slightly different (16–18%). Low glucomannan content as the alleged anticholesterol agent was regarded quite effective in lowering the cholesterol level in rat's blood and comparable with those of simvastatin which achieved 18% reduction. Therefore, it indicates potential utilisation as a functional food for a cholesterol-lowering agent. The involvement of activated carbon in the alleged anticholesterol agent (leached porang flour) did little in enhancing the cholesterol level decrease in rat's blood. The glucomannan in both leached porang flour and leached porang flour + nano activated-carbon shows potential utilisation as an anticholesterol agent. Yet, raw (unleached) porang is prospectively potential as a functional food for cholesterol-lowering.
Co-Authors Gunawan Trisandi Pasaribu, Gunawan Trisandi Gustan Pari Hery Widijanto Mahpudin Mahpudin Rahmayanti, Handika Dany Saepuloh Saepuloh Totok K. Waluyo, Totok K.