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"Gewang (Corypha utan Lamarck),a wild or semi-wild palm species distribute widely in Nusa Tenggara savanna with great potential (as building materials,drink and food),as traditionally have been exploited and utilized by local villagers for ages...."

"Forest fire is a massive threat towards tropical forest causing various negative impacts to nature and human being. Forest fire often leads to alteration of forest structure and its functions. This study of tree growth after forest fire was conducted using a model simulation. The model was performed at the individual level of plant community and built to analyze the potential of tree growth and its scenario for post-fire recovery. Five important tree species from montane forest of Mount Ciremai were chosen to build the model based on four main parameters i.e. plant growth rate, diameter at breast height (DBH), tree-to-grass competition and tree-to-tree competition. The scenario of post-fire recovery was performed by replanting similar species with 5 cm DBH seedling. Prediction from our model showed that most of the chosen species would recover to its pre-fire condition after 37 - 50 years. Considering the limitation of competition after re-planting, it was suggested to minimize tree to tree competition and applied silvicultural treatments to maximize tree growth and tree community recovery."

"Papua has been experiencing heavy logging activity in its forests for decades . However, only several studies focused on the effect of logging in the forest ecosystem. This research was aimed to analyze recovery processes of the forest ecosystem. The research was conducted in the logged tropical rainforest in South Papua using ecological approach which used tree communities as biotic and soil condition as abiotic indicators. Data were collected in the logging area of PT Tunas Timber Lestari located in the tropical rainforest of South Papua. There were five groups of forests used in this research i.e. unlogged, one year post selectively-logged, five years post selectively-logged, ten years post selectively-logged and fifteen years post selectively-logged forests. Thirty nested plots were laid on each forest group. Canonical Correspondence Analysis (CCA) was applied to analyze the understory and upperstory plant communities. Understory and upperstory plant communities formed different patterns due to logging. Plant communities in the ten and fifteen years post-selectively logged forests were not similar to those in the unlogged forest. Soil organic matter (SOM) content in the selectively logged forests was lower than that in the unlogged forest. These occurrences indicated that the selectively logged forests were still recovering and required more than fifteen years to be fully recovered."

"Biji melinjo Gnetum gnemon L. mengandung banyak senyawa turunan stilbene dan senyawa fenolik yang diketahui berkhasiat sebagai antihipertensi dengan menghambat Angiontensin Converting Enzyme ACE . Tujuan dari penelitian ini adalah menganalisis aktivitas penghambatan ACE dan kadar fenolik total dari ekstrak biji melinjo. Pada penelitian ini biji melinjo diekstraksi menggunakan metode refluks dengan pelarut bertingkat yang dimulai dari n-heksana, diklorometana, etil asetat, metanol dan air. Aktivitas penghambatan ACE diuji menggunakan ACE kit-WST dan ekstrak teraktif diuji IC50 sedangkan penetapan kadar fenolik total diukur dengan metode Folin-Ciocalteu.Hasil uji aktivitas penghambatan ACE menunjukkan bahwa ekstrak etil asetat merupakan ekstrak dengan aktivitas penghambatan ACE tertinggi sebesar 92,11, kemudian ekstrak metanol 90,64, ekstrak diklorometana 89,93, ekstrak air 89,81 dan yang terendah adalah ekstrak n-heksana sebesar 79,29. Selanjutnya nilai IC50 ekstrak etil asetat sebagai ekstrak teraktif sebesar 9,77x10-8 g/mL dan nilai IC50 kaptopril sebesar 1,13x10-12 g/mL. Hasil penetapan kadar fenolik total menunjukkan bahwa ekstrak etil asetat merupakan ekstrak dengan kadar fenolik tertinggi sebesar 575,884 mgGAE/g, ekstrak metanol 398,551 mgGAE/g, ekstrak diklorometana 104,102 mgGAE/g, ekstrak air 41,224 mgGAE/g dan yang terendah adalah ekstrak n-heksana sebesar 30,611 mgGAE/g.

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Melinjo seeds Gnetum gnemon L. contains many stilbene derivative and phenolic compounds which known efficacious as antihypertensive by inhibit the Angiotensin Converting Enzyme ACE. The purpose of this study was to analyze the inhibition of ACE activity and total phenol content. In this study, Melinjo seed was consecutively extracted with reflux method using five different solvents such as nhexane, dichloromethane, ethyl acetate, methanol, and water. ACE inhibitory activity was tested using ACE kit WST and the highest ACE inhibitory extract tested with IC50 while determination of total phenolic content was measured by Folin Ciocalteu method.The results of ACE inhibitory activity showed that the ethyl acetate extract is an extract with highest ACE inhibitory activity 92.11, then the methanol extract 90.64, dichloromethane extract 89.93, water extract 89,81, and the lowest is n hexane extract 79.29. Furthermore, IC50 results show the ethyl acetate extract is 9,77x10 8 g mL and IC50 value captopril is 1,13x10 12 g mL. The results of determination of total phenolic content showed that ethyl acetate extract is an extract with the highest phenolic content 575.884 mgGAE g, then the methanol extract 398.551 mgGAE g, dichloromethane extract 104.102 mgGAE g, water extract 41.224 mgGAE g and the lowest is n hexane extract of 30.611 mgGAE g."

"Indonesia terdiri atas pulau-pulau yang membentang dari Sabang sampai Merauke . Indonesia memiliki berpuluh ribu kilometer panjang pantai di mana di sepanjang pantai inilah dan di muara sungai yang melengkapinya....."