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Abdul Hakim Lukman
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PENGARUH PENGUKUSAN DAN PERAJANGAN DAUN GAMBIR (Uncaria gambir ROXB) TERHADAP MUTU EKSTRAK GAMBIR Zulnely Zulnely; Abdul Hakim Lukman
Jurnal Penelitian Hasil Hutan Vol 12, No 6 (1994): 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.1994.12.6.217-224

Abstract

This experiment is 10 study the effect of steaming duration and chopping sizes of gambier leaves (Uncaria gambir ROXB) on both yield and quality.The steaming duration of the samples were conducted at 30,40, 60 and 75 minutes  and tire chopping sizes of tire sample consisted of  0.5-1  cm,  2-3 cm,  4-6 cm,  and unchopping,  The results were analyzed  using the factorial  design  with two replicates and the difference between means were tested with multiple range Duncan "s test.The results showed than the steaming duration and the chopping sizes had a significant  effect on  the yield,  catechin  consent, insoluble matter and insoluble matter in alcohol.  Combination of 0.5-1 cm     chopping size and 30 minutes steaming duration was the best treatment.  This combination produced  10.34  % yield of gambier ext. act,  75.82%  catechin content,  11.34 % moisture content, 4.75 % ash content,  4.86  % insoluble matter, and 12.03 % insoluble matter in alcohol.
PERCOBAAN PEMUTIBAN TEPUNG SAGU (METROXYLON SP.) DENGAN KAPORIT Abdul Hakim Lukman
Jurnal Penelitian Hasil Hutan Vol 9, No 7 (1991): 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.1991.9.7.259 - 267

Abstract

The  effect   of  the  bleaching  of  sago flour  by  calcium  hypochlorite   solution   at several  concentration levels (0;  1,5; 2,0; and 2,5 percent)   and soaking  time  (30,  45,  and  60 minutes)  on sago flour  quality  were studied  at the Forest Product Research  and Development  Centre  Laboratory   in Bogor.  Results  showed   that  unbleached   sago flour  when  soaked  for  60. minutes  gave the  highest  yield  (89.48  percent).   At   1.5 percent   hypochlorite  concentration  and  30 minutes  soaking  time, the proximate   analysis  including  moisture,  ash, fat,  starch,  protein   and crude fiber  contents  are consecutively  9.34,  0. 5, 0.28,  87.60,  0.56,  and  0. 74 percent.                Application    of  1.5 percent   calcium  hypochlorite  concentration  and  30  minutes  soaking  time  could  improved pH value  (7. 70),  whiteness   (83.60 percent)   organoleptic color test  (5.04),  and organoleptic odor  test  (4.20),  while viscosity  (17.85  cP), and reduced  melanin  content   down   to  o. 05 percent.
ANALISIS KOMPONEN KIMIA MINYAK KAYU CENDANA DENGAN KROMATOGRAFI GAS Abdul Hakim Lukman; Bambang Wiyono
Jurnal Penelitian Hasil Hutan Vol 5, No 7 (1988): 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.1988.5.7.437-441

Abstract

The purpose of  this research is to identify  chemical  components of sandalwood  oil by using the gas chromatography method. This sandalwood  oil  was  obtained   by  steam  and  water  distillation  for 18,  24,  and  30  hours  distilling  times. The  condition  of  the  gas chromatography   employed  was adjusted to :  injector  temperature  200°  C. detector temperature 0°  C,  initial  column   temperature  140°  C,  final  temperature  column  200°  C, speed  temperature   column   5° C/min,   with nitrogen  gas as carrier, and  the  using  the  flame  ionization   detector  system.    The identification  of  the peak  components was done  by  comparing  the  relative retention   time  of  the peak  component   with  the peak  retention   time  chemical  solution standard.   The peak  area of  each components    was calculated  by  normalization   method.The  results  indicated   that  chemical components of  sandalwood oil, which  was produced   by  the  steam  and  water distillation   for  18, 24,  and  30  hours,  include  0.0391, 0.0271, and  0.0313 % of α-pinene;  0.0065,  0.0034, and  0.0027 % of  limonene;  0.9147,  0.7799,   and  1.0393   % of α-santalene; 2.4375,1.9802, and 2.3474  % of  terpineol 4;  1.2184, 0.7922, and  0. 7921 % of  β-santalene;   5. 7263,  3.8800, and 3.9335  % of nerolidol; 48.0481, 51.1802. and 50.3507 % of β-santalol; 22.4367,  24.7127, and  24,2864 % of  (arnesol, Unidentified   component  in each distilling time were  19.1727,15.6443, and  17.2166   %. respectively.    The β -santalol  component    occupies  the  mayor  component   of  sandalwood   oil.  The  amount of  this component  at each  treating  condition was 48.0481 % for 18  hours;  51.1802 % for 24 hours; and 50.3507  % for 30 hours. Terpineol-4, nerolidol, β-santalol.   and  farnesol  components  constitute   the sandalwood   oil and is usually  calculated as the  total  santalol.
PERUBAHAN KOMPONEN KIMIA BUAH MAKADAMIA (MACADAMIA HILDEBRANDII STEEN) SELAMA PENYIMPANAN Abdul Hakim Lukman; Toga Silitonga
Jurnal Penelitian Hasil Hutan Vol 6, No 2 (1989): 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.1989.6.2.113 - 116

Abstract

This  work  investigates   the  use of  macadamia  (Macadamia hildebrandii   Steen)  fruit.   The samples  were obtained  from Forest  District  of  Simalungun,   North  Sumatera  province  of Indonesia.  The nut samples  were allowed  to stand  for a period of  zero   week  as control,   the  others  were  kept  for  4 and  8  weeks.   The  macadamia   kernels  were also stored  for  4 and  8 weeks.  The  analyses  comprised   of  the  determination    of  moisture.    ash,   fat  and protein   contents.The  study   reveals  that  the  moisture   content   varies from   17. 7 -   24.6   percent,   ash  from  2. 7 -  2.9 percent,  fat from0.9  -   2.0  percent,   and  protein   from  6.3  -   8.4  percent.    Themoisture,    fat, and protein   contents   were  effected  by  fruit condition  and  storage  time,   while ash contents   not  influenced.   The  macadamia  kernels   stored  for  8 weeks  have smaller moisture   content.   Fat  content   of  macadamia  nuts  decreased   at stored   for  4 and 8 weeks,and protein  content   of macada-mia nuts  and kernels  decreased  at stored  for
PENYULlNGAN KULIT MASOI (Cinnamomum zanthoneuron BL.) BAGIAN II (Distillation of Maosi bark (Cinnamomum xanthoneuron BL.,). PART II) SIFAT FISIKO KIMIA MINYAK KULlT MASOI BASIL PENYULINGAN CARA KOHOBASI Bambang Wiyonot; Abdul Hakim Lukman; Poedji Hastoeti
Jurnal Penelitian Hasil Hutan Vol 10, No 1 (1992): 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.1992.10.1.12-15

Abstract

The purpose  of  this  research  is to study   the  physico    chemical properties  of oil produced   from hydrodistillation  of  massoi bark.  The  distillation period  were  varied  from   12  to 18,  2 4,  30,  and  30 and 36 hours,The result  indicates  that  distillation  r appears  to have highly significant ,  affect  on oil yield and acid number  as shown   by  linear regresison  of  respectively  Y =  2.132  +  0. 350 X  (r = 0. 943)   for  oil  yield   and  Y  =  3.598   + 0.219  X (r  =  0.977)  for  acid  number.  Besides  that  massoi   bark oil from  Maluku has higher eugenol  content composed   with  that from  lriqn  and  West Australia. 
ANAUSIS KOMPONEN KIMIA MINYAK TERPENTIN DARI CIANJUR DAN REKALONGAN TIMUR Abdul Hakim Lukman; Bambang Wiyono
Jurnal Penelitian Hasil Hutan Vol 8, No 6 (1991): 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.1991.8.6.243-246

Abstract

77&e  purpoae of  the  study  is to  identify  chemical oomponents of  turpentine oils from  Ciaft.;ur,  West Java, and Pekalongan flmlD', Central Java. The analysia was conducted using  Gas Chromatography method, The relative retention time  of . thfl standard solution. before the emergence of a­pinene peak  was predetermined prior  to the analyaisof the a­pine111 of the 1amplea.The peak areaof each chemical components was then calculated by normalization method .• •                 . 7'ae   ~lta     showed  !hat there are res~ctively,  _         12 and 7 compo.nent8.of turpe'!ti1!Bidenti.fied from samples.from CiatVuraruf Pekalongan TimlD'.  The chemical components of  turpentine 011  'from Cnrvur corm.fed of a­ and IJ­p1nene, camphene, 11­3­carene, limonene, IJ­phellandrene,a­ and 'Y­terpinene,p-cymene, terpinolene, cilryophyllene, and humulene.7Jaoae from Pekalongan Timur comprised a­ and fJ­pinene,camphene, 11­3­carene, terpinene, limonene, and caryophyllene.'IJaeJ.pineneforms the  mayor  portion of  turpentine oil, amounting to 72.9% from Cianjur and 71.3% from Pekalongan flmw.
Co-Authors Bambang Wiyono Bambang Wiyonot Erra Yusnita Poedji Hastoeti Poedji Hestoeti Toga Silitonga Zulnely Zulnely