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Pemanfaatan Asap Cair Sabut Kelapa Sebagai Bahan Koagulasi Lateks Dewi, Hesti Hertika Sari; Maryanti, Maryanti; Delvitasari, Febrina
Jurnal Agro Industri Perkebunan Volume 7 No. 2, Oktober 2019
Publisher : Politeknik Negeri Lampung

Smoke liquid for latex coagulant is one of the solution to avoid the negative impact of not recomended coagulant such as vinegar, TSP fertilizer and alum. Coconut fiber has lignin content so that it can be processed into liquid smoke. The aim of this study was to determination the best dose of coconut fiber liquid smoke for latex coagulant and the effect on the quality of SIR product. The treatment used in this study was the dose of coconut coir liquid smoke (formic acid (control) 4.76% v/v, 13.04% v/v, 14.89% v/v, 16.67% v/v, 18 v/v, 36% v/v, and 20% v/v). The results showed that the coconut fiber liquid smoke with dose 20% v/v gave the best result on time for clumping latex, total coagulum and total rubber yield. Based on quality data, a dose of 20% v/v include SIR 20 quality.

PENGARUH FERMENTASI S. cerevisiae TERHADAP MUTU KOPI ROBUSTA Thalia, Tia; Ersan, Ersan; Delvitasari, Febrina; Maryanti, Maryanti
AGRITROP Vol 18, No 1 (2020): Agritrop: Jurnal Ilmu-Ilmu Pertanian
Publisher : Universitas Muhammadiyah Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32528/agritrop.v18i1.3489

Komoditas kopi di Indonesia sebagian besar diolah dalam bentuk produk primer (biji kopi kering) dan merupakan kopi asalan dengan mutu yang rendah. Rendahnya mutu biji kopi di Indonesia yang dihasilkan, dapat mempengaruhi produksi biji kopi dikarenakan pasca panen yang tidak tepat, antara lain pada proses fermentasi, sortasi, pengeringan, dan penyangraian. Penelitian bertujuan mengetahui pengaruh konsentrasi Saccharomyces cerevisiae, lama fermentasi dan interaksi antara konsentrasi S. cerevisiae bersama lama fermentasi terhadap mutu kopi robusta. Penelitian dilaksanakan di Politeknik Negeri Lampung menggunakan kopi robusta dari Desa Sumber Sari, Banjit, Waykanan, Lampung. Penelitian disusun skema faktorial dalam RAK dengan faktor pertama S. cerevisiae (2% dan 3%) dan faktor kedua lama fermentasi (5, 10, 15 jam) dengan 3 kali ulangan. Data dianalisis dengan sidik ragam (ANOVA) dan dilanjut dengan BNT pada taraf nyata Î±=5%. Hasil penelitian menunjukkan, bahwa biji kopi kering yang dihasilkan tergolong mutu II, kecuali konsentrasi S. cerevisiae 2% dan lama fermentasi 10 jam tergolong mutu III. Konsentrasi S. cerevisiae mempengaruhi kadar kafein dan tingkat keasaman (pH) kopi bubuk. Lama fermentasi mempengaruhi kadar air biji kopi kering, kadar air dan kadar kafein kopi bubuk. Kombinasi konsentrasi S. cerevisiae 3% dan lama fermentasi 5 jam mempengaruhi kadar air dan kadar kafein kopi bubuk dengan total nilai uji organoleptik tertinggi 75,14

Evaluasi Kinerja Tenaga Penyadap Karet (Hevea brasiliensis Muell. Arg.) Berdasarkan Kualitas Sadap Herlinda, Fadila; Tahir, Muhammad; Delvitasari, Febrina; Riniarti, Dewi
Jurnal Agro Industri Perkebunan Vol. 10 No. 1 (2022)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v10i1.1744

The performance of tappers has an effect on the high or low level of production and productivity of the latex produced by a company. However, many tappers are only fixated on the production target (quantity) that must be achieved rather than paying attention to the quality of the tapping. This study aims to analyze the performance of tappers based on the quality of tapping and the factors that influence it and to determine the application of the premium system. The research was conducted from November to December 2019 at PT Perkebunan Nusantara VII Way Berulu, Pesawaran, Lampung. The research used a survey method and purposive sampling technique by selecting 12 tappers based on age, education level, and work experience and observing 5 sample trees from each tapper. Data were analyzed using descriptive analysis and level test analysis of 5%. The results showed that the performance of tappers is in the good category, because it has few wood wounds and the depth of tapping and bark consumption is in accordance with recommended norms. The factors of age, education level and work experience do not have a significant effect on the performance of tappers. All tappers do not receive a premium because it does not exceed the task bases.

Pengaruh Konsentrasi NaOH dan Suhu Delignifikasi pada Kandungan Lignoselulosa Tandan Kosong Kelapa Sawit Permana, Hafid Andre; Delvitasari, Febrina; Hartari, Widia Rini; Maryanti, Maryanti
Jurnal Agro Industri Perkebunan Vol. 12 No. 1 (2024)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v12i1.2729

Palm oil processing in the industry produces products and waste; the waste generated from the palm oil processing process will have a negative impact on the environment if it is not processed. Oil palm empty fruit bunches are lignocellulosic solid wastes that contain cellulose, lignin, and hemicellulose content, so they have the potential to be raw materials for making bioethanol. In the process of producing bioethanol, delignification is an early stage that aims to reduce the lignin content in lignocellulosic materials with alkaline or alkaline pretreatment solutions such as the use of NaOH can be used to help separate lignin from cellulose fibers. This study aimed to analyze the effect of NaOH concentration and delignification temperature on the lignocellulosic content of oil palm empty fruit bunches. The research method was arranged descriptively with two treatments: the concentration of NaOH consisting of 3%, 4%, and 5%, and the heating temperature consisting of 100 oC, 110 oC, and 120 oC. Lignocellulosic content can be calculated using the Chesson method analysis with the Microsoft Excel 2016 application as a data processor. The results showed that 1 M NaOH concentration with heating temperature had an effect on the observations of hemicellulose, cellulose, and lignin. The best treatment of 1 M NaOH concentration and heating temperature on hemicellulose, cellulose, and lignin was produced by the treatment of 5% NaOH concentration with a heating temperature of 120 0C.

Pengujian Lignoselulosa Tandan Kosong Kelapa Sawit dengan Waktu Delignifikasi H2SO4 Menggunakan Uap Bertekanan Hartari, Widia Rini; Delvitasari, Febrina; Maryanti, Maryanti; Undadraja, Bigi; Hasbullah, Fizzaria; Deksono, Giannis Aji
Jurnal Agro Industri Perkebunan Vol. 11 No. 3 (2023)
Publisher : Politeknik Negeri Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25181/jaip.v11i3.3007

Oil palm empty fruit bunches (EFB) are the most abundant solid waste from the palm oil industry and are underutilized, even though they have the potential to become industrial raw materials because they contain three fractions, namely cellulose, hemicellulose, and lignin. This research was carried out using the steam method using 1 molar sulfuric acid with concentrations of 6.4%, 7.6%, and 8.7%. The delignification temperature was measured at 120 oC and with different delignification times of 60 minutes, 90 minutes, and 120 minutes. The best treatment with 1 M H2SO4 concentration and heating time for hemicellulose was the treatment with 8.7% H2SO4 concentration and 90 minutes of heating time. The best treatment with 1 M H2SO4 concentration and heating temperature for cellulose was found to be 6.4% H2SO4 concentration with 90 minutes of heating time. The best treatment with a 1 M H2SO4 concentration and heating temperature for lignin was the 6.4% H2SO4 treatment with 90 minutes of heating time.

Pengaruh Lama Waktu Pengadukan Dengan Penambahan Asam Asetat Dalam Pembuatan Virgin Coconut Oil (VCO): The Effect of Stirring Time With the Addition of Acetic Acid in The Production of Virgin Coconut Oil (VCO) Fahmi, Putri Mariska; Maryanti, Maryanti; Delvitasari, Febrina; Rini Hartari , Widia; Cerly Pramuditha, Anjeli; Kusuma, Jakty
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 9 No 1 (2025): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v9i1.886

Virgin Coconut Oil (VCO) is unheated coconut oil processing, which leaves the oil's composition and properties unchanged. In the process of making VCO, various methods can be used, including: Techniques such as acidification, controlled heating,centrifugation, fishing, fermentation, and enzymatic. In this study, VCO was made using the acidification method with the addition of 20% acetic acid. The approach taken was a Randomized Block Design (RAK) with 2 factors and every treatmentwas carried out three times, in order for 18 experimental units to be acquired. DA variance analysis was used to examine the data and continued with BNT at a level of 5%. This study was conducted to determine the effect of the addition of acetic acid (1% and 2%) and the duration of stirring using a hand mixer with a maximum speed of 1,500 rpm for (10 minutes, 15 minutes, 20 minutes) and the interaction between the addition of acetic acid and the duration of stirring on the yield and quality produced. The VCO analysis test in this study included the yield test (%), water content (%), Free Fatty Acid (FFA) content, peroxide number, specific gravity, and organoleptic (color, aroma, taste). According to the study's findings, the highest yield was 26.84% with the addition of 1% acetic acid with a stirring time of 15 minutes.

Pengaruh Lama Waktu Pengadukan Dengan Penambahan Asam Asetat Dalam Pembuatan Virgin Coconut Oil (VCO): The Effect of Stirring Time With the Addition of Acetic Acid in The Production of Virgin Coconut Oil (VCO) Fahmi, Putri Mariska; Rini Hartari , Widia; Maryanti, Maryanti; Delvitasari, Febrina; Kusuma, Jakty; Cerly Pramuditha, Anjeli
AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian Vol 9 No 1 (2025): AGROSAINSTEK: Jurnal Ilmu dan Teknologi Pertanian
Publisher : Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/agrosainstek.v9i1.886

Virgin Coconut Oil (VCO) is unheated coconut oil processing, which leaves the oil's composition and properties unchanged. In the process of making VCO, various methods can be used, including: Techniques such as acidification, controlled heating,centrifugation, fishing, fermentation, and enzymatic. In this study, VCO was made using the acidification method with the addition of 20% acetic acid. The approach taken was a Randomized Block Design (RAK) with 2 factors and every treatmentwas carried out three times, in order for 18 experimental units to be acquired. DA variance analysis was used to examine the data and continued with BNT at a level of 5%. This study was conducted to determine the effect of the addition of acetic acid (1% and 2%) and the duration of stirring using a hand mixer with a maximum speed of 1,500 rpm for (10 minutes, 15 minutes, 20 minutes) and the interaction between the addition of acetic acid and the duration of stirring on the yield and quality produced. The VCO analysis test in this study included the yield test (%), water content (%), Free Fatty Acid (FFA) content, peroxide number, specific gravity, and organoleptic (color, aroma, taste). According to the study's findings, the highest yield was 26.84% with the addition of 1% acetic acid with a stirring time of 15 minutes.

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