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HUBUNGAN NETRALISASI TERHADAP SIFAT FISIKO KIMIA PADA LEMAK BIJI TENGKAWANG Haryanti, Wiwik Dwi
Jurnal Pembelajaran Prospektif Vol 3, No 1 (2018)
Publisher : Universitas Tanjungpura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26418/jpp.v3i1.34446

Abstract

There are more than 13 species of Tengkawang tree in Indonesia, mainly grown in Kalimantan and a few in Sumatera. Tengkawang species of a valuable tengkawang kernel that up to now just harvested from the natural forest. At the end of kernel production period, the trees can be cut to produce valuable timber for playwood and sawn timber industries. In this study, Tengkawang kernel was extracted by soxhlet extraction apparatus using petroleum ether as solvent. The extraction yields a yellow fat and after the process of purification/neutralization conducted, it was found the acid number 14.32 decrease to 10.22, free fatty acids 7.196% decrease to 5.14%, saponification 198.23 mgKOH/gram sample decrease to 178.23 mgKOH/gram samples, peroxide number mgO2 4.91/100g sample to 3.24 mgO2/100g samples and materials do not saponified 1.13% decrease to 1.12%, and the yield on solvent extraction with 43.50%.
Perencanaan Pengelolaan Sumberdaya Lahan yang Terkena Dampak Penggunaan Lahan untuk Penembangan Kapur Oteng Haridjaja; Wiwik Dwi Haryanti; Rina Oktaviani
Jurnal Ilmu Pertanian Indonesia Vol. 16 No. 1 (2011): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (572.942 KB)

Abstract

The need of cement industry mine material to support the requirements on agricultural land resource as livelihood is two different interest that have a potential to emerge conflict of interest on nature resource utilization. Knowing the nature and human resource potentials as well as determining the direction of utilization planning strategy for sustainable land management. Research was carried out from November 2008 - April 2009. This is a descriptive qualitative study to describe the field condition. For determining sustainable land utilizationand management priority was used AHP by pair elements comparison method. General condition explained that land utilization for ecologically agriculture commodities is on appropriate land: un-suitability (NS), marginally suitability (S-3t, and S-3gt) for seasonal plants, as well as un-suitability (NS), marginally suitability (S-3te), and moderatly suitability (S-2te) for annual plants. The agricultural, industrial, and husbandry commodities that have proper economic potential is cassava, long bean, cucumber, mangoes, wood (albasia), tapioca industry, and goats husbandry. Main job as farmers is 85 %, 83°/o don't have an own land so they need an agricultural land. It is very important for their who have livelihood as a paisant, 72°/o moreover for theirs who were in a productive age. Result of AHPto determine the direction of land utilization and management pre, post, and non mining land showed that the stakeholders group who have important role on all land condition is the corporate. Priority ecology aspect on pre and post mining, socially aspect is on non-mining land utilization and management, the main choice for non-mining land utilization and management is food plants. Although value priority of bio-fuel plantation is higher than value priority of food plants, but food plants have more useful in social and economic. Priority pre-mining land utilization and management is food plants, and post-mining is land management based on sustainable environment.
Rintisan Program Pengolahan Sampah Melalui Komposting Magot Sedekah Sampah Yayasan Perintis Pendidik Nusa Bogor Haryanti, Wiwik Dwi; Damari, Arfan; Jaya, Indra; Jatiningrum, Citrawati; Abadi, Satria
NEAR: Jurnal Pengabdian kepada Masyarakat Vol. 3 No. 2 (2024): NEAR
Publisher : Komunitas Dosen Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32877/nr.v3i2.1324

Abstract

Pengelolaan sampah pada institusi sosial merupakan langkah penting bagi keberlanjutan aktivitasnya. Sampah yang terkelola dengan baik membuat kenyamanan stakeholder lembaga tersebut. Kegiatan pengabdian yang dilakukan oleh Yayasan Perintis Pendidik Nusa bertujuan melakukan rintisan pengelolaan sampah dalam rangka pengurangan akibat merugikan yang terjadi dari timbunan sampah. Hasil pengabdian masyarakat Yayasan ini berupa lingkungan lembaga yang lebih tertata dan minim sampah. Sampah organik diolah dengan bantuan magot larva dari black soldier flies menjadi pupuk organik. Sampah anorganik layak jual menjadi uang setelah diberikan ke program sedekah sampah. Sampah anorganik residu dilakukan pembakaran kemudian menjadi karbon yang dapat menjadi pupuk. Ada peningkatan 10 % masyarakat yang mau memilah sampah