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All Journal Jurnal Teknik Kimia USU Turbo : Jurnal Program Studi Teknik Mesin Agrotekma: Jurnal Agroteknologi dan Ilmu Pertanian Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Best Journal (Biology Education, Sains and Technology) Community Development Journal: Jurnal Pengabdian Masyarakat Jurnal Agro Estate ABDI SABHA (Jurnal Pengabdian kepada Masyarakat) Multidiciplinary Output Research for Actual and International Issue (Morfai Journal) International Journal of Economic, Business, Accounting, Agriculture Management and Sharia Administration (IJEBAS) International Journal of Social Science, Educational, Economics, Agriculture Research, and Technology (IJSET) Jurnal Teknik Kimia USU Journal of Food and Agricultural Product Jurnal Agro Estate Jurnal Agro Fabrica
Ika Ucha Pradifta Rangkuti
Institut Teknologi Sawit Indonesia, Medan, Sumatera Utara, Indonesia
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The Use of Gamal Leaves (Gliricidia sepium) to Accelerate Fresh Fruit Bunch Detachment and Improve the Quality of Crude Palm Oil Giyanto, Giyanto; Rangkuti, Ika Ucha Pradifta; Raja, Pada Mulia; Winardi, Rafael Remit; Mahyunis, Mahyunis; Ashari, Reza; Elisabeth, Jenny
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 13 No. 4 (2024): December 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i4.1432-1441

Abstract

Acceleration of processing for fresh fruit bunches (FFB) is crucial to increase profitability and business opportunities for oil palm farmers. This research aims to evaluate the effect of using gamal (Gliricidia sepium) leaves and the duration of ripening on the percentage of FFB processing as well as the quality of crude palm oil. This study employed a factorial completely randomized design (CRD). The data were analyzed using ANOVA with Duncan’s Multiple Range Test at a significance level of 5%. The results of the analysis showed that the best treatment was S3T2 (40% gamal leaves, 20 h of ripening) with a natural processing percentage of 45.87% of the FFB weight and 60.34% of the total bunch weight. The use of gamal leaves and the duration of ripening significantly affected the quality parameters of the oil, especially the free fatty acid content. Treatment S1T1 (20% gamal leaves, 10 h of ripening) showed the best results with a free fatty acid value of 1.30%, meeting the quality standard (<5%). However, the moisture content still exceeded the quality standard (<0.5%), although treatment S3T2 yielded the best result at 0.63%. While, the impurity content quality met the quality standard (<0.5%), with the best value achieved by treatment S1T1 at 0.15%. Keywords: Bunch detachment, CPO quality, Ethylene, Gliricidia sepium, Ripening.
Preliminary Study of The Utilization of Belimbing Wuluh (Averrhoa bilimbi L.) Extract as A Coagulant of Rubber (Hevea brasiliensis Muell. Arg.) Latex Simamora, Michael Kurniawan; Mulyara, Budi; Rangkuti, Ika Ucha Pradifta; Junaidi
Journal of Food and Agricultural Product Vol. 4 No. 1 (2024): JFAP
Publisher : Fakultas Pertanian Universitas Veteran Bangun Nusantara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32585/jfap.v4i1.5039

Abstract

Coagulants are commonly used in rubber plantations to coagulate latex. This study aims to determine the effect of incubation time and dose of starfruit extract on coagulation speed, total solid content (TSC), and weight loss of the resulting coagulum. The study was carried out at the Sungei Putih Research Unit, Indonesian Rubber Research Institute in September – October 2023. A Completely Randomized Design (CRD) was applied with two treatments, namely, the incubation period for the extract (A) which consisted of three levels (0 days (A1), 2 days (A2), and 4 days (A3)) and the extract dose (B) consisting of three levels (3 ml (B1), 6 ml (B2), and 9 ml per 20 ml latex (B3)). Each treatment combination was repeated three times. The results indicated that the degree of acidity (pH) of starfruit extract without incubation was around 2.8. After incubation for 2 days, the pH decreased to 2.7, and after 4 days to pH 2.5. The fastest coagulation was obtained in treatment A3B3 for 2.03 minutes after mixing, while the longest was in treatment A1B1 for 7.07 minutes. The highest coagulum TSC was obtained in the A3B1 treatment at 50.30%, while the lowest was in the A2B3 treatment at 27.47%. The highest level of weight loss was found in the A2B2 treatment at 36.80%, while the lowest was in the A3B3 treatment at 23.01%. The use of high doses of starfruit extract can coagulate latex in a short time with low weight loss; thus, it can be used as an organic coagulant.
PEMBERDAYAAN MAHASISWA MENJADI SEORANG WIRAUSAHA MANDIRI DI LINGKUNGAN KAMPUS ITSI Pulungan, Delyana R; Saragih, Dina Arfianti; Rangkuti, Ika Ucha Pradifta; Aznur, Tifany Zia; Purjianto, Purjianto
Community Development Journal : Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2024): Volume 5 No 1 Tahun 2024
Publisher : Universitas Pahlawan Tuanku Tambusai

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31004/cdj.v5i1.24653

Abstract

Hadirnya perguruan tinggi baik swasta dan negeri memberikan sumbangan tenaga ahli lulusan mahasiswa di setiap tahunnya, akan tetapi dengan predikat sarjana hal tersebut belum tentu menjanjikan untuk mendapat pekerjaan yang sesuai, terkadang dari banyaknya lulusan tak semua terserap di lapagan pekerjaan yang menyebabkan pengangguran. Pemberdayaan mahasiswa dan lulusan melalui kewirausahaan dianggap sebagai salah satu solusi untuk mengurangi pengangguran. Kegiatan pengabdian ini dilakukan bertujuan untuk memberikan ilmu pengetahuan, informasi tentang wirausaha, minat untuk berwirausaha, menyampaikan secara nyata manfaatnya dalam mencegah pengangguran di kalangan mahasiswa/lulusan. Kegiatan pengabdian ini dilaksanakan dengan beberapa tahapan yaitu, pembekalan dari mata kuliah Technopreneur dan Pemasaran Produk Perkebunan yang berisi mulai dari dasar-dasar entrepreneurship, perencanaan bisnis, manajemen keuangan, pemasaran, inovasi, keterampilan komunikasi, hingga membuat satu proposal bisnis yang produknya dijual pada kegiatan bazar di kampus pada bulan Juli 2023 yang dibagi ke dalam 8 kelompok. Dari kegiatan pengabdian ini diketahui bahwa mahasiswa ITSI memberikan tanggapan yang positif dan memiliki keinginan untuk berwirausaha sebagai alternatif setelah lulus selain mencari pekerjaan sebagai pegawai di perusahaan. Terdapat 90% menyatakan setuju bahwa mereka ingin membangun usaha sendiri dengan harapan dukungan dari lingkungan keluarga dan modal yang cukup sehingga mereka bisa menciptakan lapangan kerja bagi diri sendiri maupun masyarakat.
PATTERNS OF CHEMICAL CONTROL OF WEEDS ON DISC ON PRODUCTION AND RAINFALL AND RAIN DAYS AT KUALA PESILAM GARDEN GARDEN ELEPHANT HALL DIVISION I PT. BAHRUNY Rina Maharany; Dina Arfianti Saragih; Delyana R Pulungan; Ika Ucha Pradifta; Muhammad Kahfi Adam
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 1 No. 2 (2022): January (January-March)
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (246.133 KB) | DOI: 10.54443/morfai.v1i2.55

Abstract

This final project research was conducted at the Kuala Pesilam Balai Gajah estate, Division I, PT. Bahruny, North Sumatra Province. This study took place from July to July 2021. This study aims to determine the pattern of weed control in the circle on production as well as rainfall and rainy days. This study uses a descriptive method by collecting secondary data from the garden: rainfall and production data. The results of this study can indicate that Indonesia's unstable palm oil production is caused by several factors, namely genetic factors, biotic factors (weeds) and abiotic factors (rainfall and rainy days). Production in 2020 is the highest production of oil palm for 4 years (2017-2020) with a total production of 5,971,760 Kilograms with an area of 336.96 hectares. The amount of rainfall is 2371 mm and rainy days is 117 days with weed control patterns on the disk carried out 4 times a year. Production in 2018 was the lowest production of oil palm for 4 years (2016-2020) with a total production of 4,032,338 kg, with an area of 267.96 Ha. The amount of rainfall is 1854 mm and rainy days is 112 rainy days with weed control patterns on the disc 2 times a year. The optimal rainfall for the growth and production of oil palm plants is 2,000 mm, but with 1846 mm of rainfall it does not mean it is not good for the growth and production of oil palm plants as long as there is no water deficit, so this rainfall is still included in the criteria for growing oil palm. Production in 2018 was the lowest production of oil palm for 4 years (2016-2020) with a total production of 4,032,338 kg, with an area of 267.96 Ha. The amount of rainfall is 1854 mm and rainy days is 112 rainy days with weed control patterns on the disc 2 times a year. The optimal rainfall for the growth and production of oil palm plants is 2,000 mm, but with 1846 mm of rainfall it does not mean it is not good for the growth and production of oil palm plants as long as there is no water deficit, so this rainfall is still included in the criteria for growing oil palm. Production in 2018 was the lowest production of oil palm for 4 years (2016-2020) with a total production of 4,032,338 kg, with an area of 267.96 Ha. The amount of rainfall is 1854 mm and rainy days is 112 rainy days with weed control patterns on the disc 2 times a year. The optimal rainfall for the growth and production of oil palm plants is 2,000 mm, but with 1846 mm of rainfall it does not mean it is not good for the growth and production of oil palm plants as long as there is no water deficit, so this rainfall is still included in the criteria for growing oil palm.
"PULER" INNOVATION: PALM OIL MILL SOLID WASTE AS ORGANIC FERTILIZER TO SUPPORT SDG'S 12 Ika Ucha Pradifta R; Tifany Zia Aznur; Saroha Manurung; Aulia Juanda; Mahyunis; Dina Arfianti Saragih; Delyana R Pulungan; Ritna Wahyuni
Multidiciplinary Output Research For Actual and International Issue (MORFAI) Vol. 6 No. 2 (2026): Multidiciplinary Output Research For Actual and International Issue
Publisher : RADJA PUBLIKA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.5281/zenodo.18725029

Abstract

Palm oil mill boiler ash is a solid industrial waste available in large quantities, but its utilization is still limited. This waste has alkaline properties and nutrient content that has the potential to improve the physical-chemical properties of tropical acid soils, such as pH, cation exchange capacity, and macronutrient availability, making it a potential sustainable soil ameliorant. This study aims to process organic fertilizer, namely an organomineral product based on boiler ash, with the aim of evaluating its chemical characteristics and assessing its potential application as a soil ameliorant. The analysis results show that Puler has a pH value of 9 and a nutrient composition that can improve soil quality without heavy metal concentrations above the Indonesian national standard threshold. These findings indicate that Puler can be an efficient alternative ameliorant and supports the utilization of palm oil industry waste. In addition, this puler also meets the criteria for organic fertilizer standards according to SNI 7763:2024
Oil Extraction and Quality Stability of Crude Palm Oil Derived from Variations in Palm Fruit Ripeness Ika Ucha Pradifta Rangkuti; Muhammad Syukri; Jenny Elisabeth; Dwita Sari
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 5 (2025): October 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtepl.v14i5.1573-1581

Abstract

Processing palm fruit produces crude palm oil. Crude palm oil levels continue to increase during the fruit ripening process. The parameters used in determining the maturity criteria for palm oil harvest are color change and fruit breaking off from the bunch. Harvest quality is determined by the mature fraction. One of the problems that occurs in palm oil factories is the selection of palm fruit bunches (FFB), which are divided into three classes, namely unripe, ripe and over ripe. Selection of FFB is done manually, namely visually. The quality of palm oil is greatly influenced by the level of ripeness of the fruit at the time of harvest and post-harvest handling until the mill. This research aims to evaluate the use of variations in palm fruit maturity used in PKS which are related to yield and quality as well as oxidative stability and color. The research results showed that the variation in palm fruit maturity used resulted in the highest yield, namely 17% in P2. The quality of crude palm oil obtained from variations in fruit maturity shows different results, where the highest free fatty acid content of 2.57% is located in P2, namely a mixture of ripe and overripe fruit, while the highest water content is found in P2, namely 0.65 %. P3 has the highest impurity content of 0.68%. The oxidative stability and color obtained from using variations in fruit maturity that were heated for 24 hours decreased in value to red and yellow
Co-Authors Alvin Syahputra Aries Sukariawan Ashari, Reza Aulia Juanda Aulia Muliana Harahap Brahmana, Yusuf Delyana R Pulungan Delyana R Pulungan Delyana R. Pulungan Delyana R. Pulungan Dina Arfianti Saragih Dina Arfianti Saragih Dina Rusmawati Dwita Sari Eka Bobby Febrianto, Eka Bobby Fadli Akbar Lubis Giyanto Giyanto Gunawan Gunawan Guntoro Guntoro Hasrudy Tanjung, Hasrudy Hastina Febriaty Heni Pujiastuti Heri Purwanto Heri Purwanto Hilda Sry Utami Pohan Hondro, Rasyid Ida Ayu Putu Sri Widnyani Irma Christiana Isna Ardila Jenny Elisabeth Jenny Elisabeth Juhal Prayogie Junaidi Junaidi M.Hendra Ginting Maharani, Rhyna Mahyunis Maisarah Manurung, Saroha Mardiana Wahyuni Mega Fatimah Rosana Mhd. Insan Muhtadawan Muhammad Firza Alpi, Muhammad Firza Muhammad Hendra S Ginting Muhammad Kahfi Adam Muhammad Syukri Muhammad Syukri Muhtadawan, Mhd. Insan Mulyara, Budi Nurhidayat, Taufik Nurliana Pada Mulia Raja Purjianto Rahimah Rahmad Dian Rina Maharani Rina Maharany Rini Astuti Ritna Wahyuni Rizki Riyan Nopri Simamora, Michael Kurniawan Sukrinda Harahap, Marisa Tama Harahap, Khaidir Ali Tifany Zia Aznur Tiffany Zia Aznur Wahyu Rinaldi Wahyu Rinaldi Wahyuni, Mardiana Winardi, Rafael Remit Yanti, Irda Zulham Effendi Zulham Effendi