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Ifmalinda
Departemen Teknik Pertanian Dan Biosistem, Fakultas Teknologi Pertanian, Unand, Limau Manis, Kec. Pauh, Kota Padang, Sumatera Barat 25163
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Prediction of Caffeine and Protein of Arabica Coffee Beans Using Near Infrared Spectroscopy (NIRS) Fitri Yuwita; Ifmalinda Ifmalinda; Muhammad Makky
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 12, No 4 (2023): December 2023
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v12i4.852-862

Abstract

Testing the chemical components of coffee beans has so far been carried out conventionally with laboratory analysis which requires a long time and is expensive. Technological advances allow testing of chemical components to be carried out quickly and accurately using the NIRS (Near Infra Red Spectroscopy) method. This research aims to develop a prediction model for caffeine and protein in Solok Radjo coffee beans using the NIRS method. Solok Radjo coffee is a type of Arabica with specialty grade because of its very strong character, aroma and taste. A total of 30 samples with a weight of 6 g per sample were used in this study. This research uses NIRS Type FT-IR IPTEK T-1516 with a wavelength of 1000 - 2500 nm. The partial least squares (PLS) method was used to process the data with several SNV, MN, and MSC pretreatments to improve the model. The research results show that caffeine is found at wavelengths of 1456 - 1475 nm, 1937 - 1974 nm. Proteins 1455 - 1475 nm, and 1935 - 1974 nm. MSC pretreatment is able to improve PLS performance results. Caffeine calibration values are R2 = 0.996 and SEC = 0.002%, validation values R2 = 0.989, SEP = 0.002%, and RPD 11.869 while protein calibration R2 = 0.999 and SEC = 0.004%, Validation values R2 = 0.999, SEP = 0.010%, and RPD 19,943. NIRS can be used to predict the chemical components of Solok Radjo coffee non-destructively using the PLS method. Key work: Caffeine, NIRS, PLS, predict, protein 
PENGARUH PENGGUNAAN LILIN CARNAUBA TERHADAP MUTU BUAH ALPUKAT (Persea americana Mill) VARIETAS MEGA PANINGGAHAN Nika Rahma Yanti; Khandra Fahmy; Ifmalinda Ifmalinda; Feri Arlius; Mia Fresmiyanti
Jurnal Teknologi Pertanian Andalas Vol 27, No 2 (2023)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.27.2.239-248.2023

Abstract

Alpukat merupakan salah satu buah yang memiliki umur simpan yang singkat, sehingga buah ini akan cepat rusak jika tidak diberikan perlakuan pascapanen seperti layu, terkelupas, lecet hingga busuk. Pemberian lilin carnauba merupakan salah satu usaha untuk mempertahankan mutu buah alpukat. Tujuan penelitian ini untuk menganalisis dan menentukan konsentrasi terbaik dari pelapisan dengan lilin carnauba terhadap mutu buah alpukat varietas Mega Paninggahan. Penelitian ini menggunakan metode eksperimen dengan menggunakan RAL (Rancangan Acak Lengkap) dengan beberapa konsentrasi pelapisan lilin yaitu 0%, 3%, 6%, dan 9% yang disimpan pada suhu ruang. Berdasarkan hasil penelitian dapat disimpulkan bahwa pelapisan lilin dengan konsentrasi 6% dengan umur simpan 11 hari adalah perlakuan konsentrasi terbaik dengan nilai kadar air sebesar 80,161%; susut bobot sebesar 4,406%; kekerasan sebesar 76,1 N/cm2; dan TPT sebesar 9,10 Brix; Ph 6,8; dan Vitamin C 38,3.
Non-destructive Evaluation of Oil Content and Carotene in Oil Palm Fresh Fruit Bunches Based on Optical Properties Using Partial Least Square (PLS) Suaidah Rahmi; Dinah Cherie; Ifmalinda Ifmalinda; Muhammad Makky
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 13, No 3 (2024): September 2024
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v13i3.720-729

Abstract

Crude palm oil (CPO) is a raw material for making cooking oil that comes from palm oil, which is greatly influenced by the quality of oil palm fresh fruit bunches (FFB). Oil and carotene content in the FFB influence the quality of palm oil. The oil content is usually determined using a chemical method (Soxhlet extraction) which is time consuming and destructive. This research aimed to predict the oil and carotene content contained in oil palm FFB using partial least square (PLS). In this research, the sample used was the Tenera variety with a maturity of 140-160 day after anthesis (DAA) and 200-220 DAA. The nondestructive method involves recording images using an optical camera, which produces RGB and L*a*b* values. Results showed that PLS predicts the relationship between optical properties and oil and carotene content in palm oil. Non-destructive prediction results using PLS provided consistently correlation of L*a*b* values with estimated oil and carotene content in the FFB. Keywords: Non-destructive, Optical properties, Fresh fruit bunch, Oil palm.
Kajian Suhu Pengeringan dan Ketebalan Irisan Terhadap Mutu Tepung Batang Tanaman Buah Naga (Hylocereus sp.) Ifmalinda, Ifmalinda; Harjuniati, Weni; Andasuryani, Andasuryani
AGRITEKNO: Jurnal Teknologi Pertanian Vol 12 No 2 (2023): AGRITEKNO: Jurnal Teknologi Pertanian
Publisher : Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/jagritekno.2023.12.2.135

Abstract

Cactus plants include the stems of dragon fruit plants (Hylocereus sp.), which have nutrients that may be good for human health. These can also be used to make flour because they have the ability to replace wheat flour by up to 25% and have been used in a variety of processed goods, including noodles, yoghurt, cakes, puddings, cookies, and jelly drinks Abundant dragon fruit plant stems will come to waste if not utilized optimally, so it is necessary to process dragon fruit stems by processing them into flour. One of the stages of making flour is drying, which aims to remove the water content of the material to a certain extent to get maximum results and can extend the shelf life of flour. This study aimed to examine the effect of the appropriate drying temperature and slice thickness on the quality of dragon fruit stem flour using a rack-type oven with gas as a heat source. This study used an experimental method with a Completely Randomized Design arranged in a factorial manner consisting of 2 factors: drying temperature and slice thickness. The results showed that the best treatment was at a drying temperature of 60°C with a thickness of 2 mm, as seen from the observations, namely the relative humidity of 28,51 and the fineness modulus of 1,030.
Studi Penambahan Ekstrak Daun Randu (Ceiba pentandra) Pada Edible Coating Gel Lidah Buaya (Aloe vera L.) Terhadap Mutu Mentimun (Cucumis sativus L.) Ifmalinda, Ifmalinda; Fahmy, Khandra; Zein, Nurdianti Lutfiah
Journal of Tropical Agricultural Engineering and Biosystems - Jurnal Keteknikan Pertanian Tropis dan Biosistem Vol. 11 No. 1 (2023): April 2023
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jkptb.2023.011.01.05

Abstract

Mentimun (Cucumis sativus L.) merupakan golongan suku labu-labuan (Cucurbitaceae) dan termasuk ke dalam jenis sayuran tipe buah yang dikonsumsi segar paling banyak oleh masyarakat Indonesia. Mentimun juga memiliki sifat yang mudah rusak (perishable) setelah panen, sehingga perlu dilakukan penanganan pasca panen dengan memberikan pelapisan seperti edible coating. Pelapis yang digunakan yaitu edible coating dari gel lidah buaya dengan penambahan ekstrak daun randu. Penelitian ini bertujuan untuk mengkaji mengenai pengaruh penambahan ekstrak daun randu pada edible coating gel lidah buaya terhadap mutu mentimun. Penelitian ini menggunakan metode eksperimen Rancangan Acak Lengkap Faktorial yang terdiri dari faktor suhu (ruang dan dingin 10 °C) dan faktor penambahan konsentrasi ekstrak daun randu (5, 7, dan 9%). Berdasarkan hasil penelitian menunjukkan bahwa mentimun yang dilapisi konsentrasi ekstrak daun randu yang ditambahkan pada edible coating gel lidah buaya mampu mempertahankan mutu mentimun. Konsentrasi ekstrak daun randu 9% pada suhu dingin merupakan perlakuan terbaik yang mampu mempertahankan mutu mentimun lebih lama yaitu selama 14 hari dan tanpa pemberian ekstrak daun randu di suhu dingin yaitu selama 8 hari. Nilai pengamatan yang diperoleh pada perlakuan terbaik yaitu susut bobot sebesar 3.781%, kadar air sebesar 85.223%, kekerasan sebesar 39.891 N/cm2, total padatan terlarut sebesar 3.13 Brix, mikroba sebesar 1.23,E+07, dan chilling injury sebesar 0.057%.
KAJIAN COATING PATI JAGUNG TERHADAP MUTU BUAH ALPUKAT (Persea americana Mill) VARIETAS MEGA PANINGGAHAN Ifmalinda; Tasya Putri Herman; Dinah Cherie
Jurnal Teknologi Pertanian Vol. 25 No. 3 (2024)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jtp.2024.025.03.1

Abstract

Alpukat merupakan salah satu buah yang memiliki kandungan nutrisi, lemak, dan energi yang cukup tinggi. Alpukat varietas Mega Paninggahan merupakan salah satu buah unggulan yang memiliki angka produksi tinggi dan berasal dari Solok, Sumatera Barat. Alpukat merupakan buah klimaterik yang memiliki waktu pematangan sekitar 7 hari setelah buah dipetik hingga siap untuk dikonsumsi. Buah alpukat yang telah mengalami pematangan akan mudah mengalami kerusakan. Oleh karena itu, perlu dilakukan sebuah upaya agar dapat mempertahankan mutu buah, yaitu dengan pengaplikasian coating. Coating merupakan suatu lapisan yang tipis, berwarna bening atau transparan, berasal dari bahan-bahan yang tidak berbahaya, dan diaplikasikan langsung di atas permukaan produk pertanian. Coating yang digunakan berasal dari pati jagung. Penelitian ini bertujuan untuk mengkaji dan menentukan konsentrasi pati jagung terbaik untuk mempertahankan mutu buah alpukat varietas Mega Paninggahan. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap (RAL) satu faktor yaitu konsentrasi pati jagung. Perlakuan konsentrasi  pati jagung  terdiri dari 1,2%, 2,4%, dan 3,6%. Berdasarkan hasil penelitian, perlakuan terbaik coating pati jagung untuk mempertahankan mutu buah alpukat varietas Mega Paninggahan adalah konsentrasi pati jagung 3,6%  dengan umur simpan selama 10 hari. Hasil tiap-tiap parameter perlakuan terbaik adalah susut bobot 3,398%, kadar air 81,185%, kekerasan 52,376 N/cm2, warna Light 44,324, dan selisih warna Hue 0,947º.
Energy Analysis in the Production of Purple Sweet Potato Crackers Renny Eka Putri; Melia Elius Putri Gurning; Ifmalinda Ifmalinda; P.A Oktavionry
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.v13i4.1344-1351

Abstract

The production process of purple sweet potato (PSP) crackers involves several stages, including peeling, washing, boiling, kneading, grinding, cutting, frying, and packaging. This study aims to analyze the energy flow and production costs associated with each stage of processing sweet potatoes into crackers at the Azizah Crackers Production House in Padang City. The types of energy considered in this study included human labor, fuel gas, electricity, and raw materials (PSP, cooking oil, and supporting materials). Results showed that the total input energy for the production of PSP crackers was 784,629.95 kJ with average output energy of PSP crackers 803,880.00 kJ. The energy output of PSP crackers was 1.02 times the energy input. The cutting and frying activity required the largest input energy of 46.18% (362,310.15 kJ), while packaging activity required the smallest energy of 0.38% (2,992.33 kJ). Based on the energy type, raw materials contribute the largest energy, amounted to 85.83% (674,822.86 kJ), and the smallest type of energy was electrical energy, which was 0.74% (5,839.72 kJ). Keywords: Energy consumption. Energy flow, Production costs, Production process, PSP Crackers.
KAJIAN EDIBLE COATING PATI BIJI NANGKA TERHADAP MUTUBUAH JAMBU BIJI (Psidium guajava L.) Ifmalinda, Ifmalinda; Anggraini, Ramah; Andasuryani, Andasuryani
Jurnal Teknologi Pertanian Andalas Vol 28, No 2 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/jtpa.28.2.173-182.2024

Abstract

Jambu biji (Psidium guajava L.) merupakan salah satu produk hortikultura yang dapat hidup di daerah tropis dan memiliki nilai ekonomis cukup tinggi. Jambu biji adalah buah yang cepat mengalami kerusakan setelah panen, sehingga diperlukan penanganan pasca panen yang dapat mempertahankan mutu produk seperti dengan memberikan pelapis. Pelapis yang digunakan yaitu edible coating berbasis pati biji nangka. Pati biji nangka digunakan sebagai bahan edible coating karena mengandung pati yang cukup tinggi yaitu 83,97% dengan kandungan amilosa 21,82% dan amilopektin 62,15%. Penelitian ini bertujuan untuk mengkaji dan menentukan konsentrasi terbaik pati biji nangka terhadap mutu buah jambu biji. Penelitian ini menggunakan eksperimen Rancangan Acak Lengap (RAL) dengan faktor yaitu konsentrasi pati biji nangka. Berdasarkan hasil penelitian menunjukkan bahwa edible coating pati biji nangka mampu mempertahankan mutu buah jambu biji dengan lama penyimpanan 10 hari. Konsentrasi pati biji nangka 1,1% merupakan perlakuan terbaik. Nilai pengamatan yang diperoleh dari perlakuan terbaik yaitu susut bobot 1,5605, kadar air 84,547%, kekerasan 30,733 N/cm2, total padatan terlarut 7,133°Brix dan uji warna 111,503.
PEMBERDAYAAN KELOMPOK WANITA TANI (KWT) NAGARI SIPANGKUR DALAM PEMBUATAN KOMPOS DARI LIMBAH PERKEBUNAN KELAPA SAWIT Sari, Wulan Kumala; Ifmalinda, Ifmalinda; Ediset, Ediset; Srilanang, Suai Namun; Ansharullah, Aziz; Nelty, Hanny Nadhila; Hutahuruk, Santa Brightness; Mizan, Irfathil; Yustika, Wildan Zikrillah
Jurnal Abdi Insani Vol 12 No 4 (2025): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v12i4.2421

Abstract

Oil palm as the plantation commodities that economically promising, has encouraged extensification, such as in Dharmasraya, Tiumang District, Sipangkur Village. The Tunas Jaya Women Farmers Group (WFG) in Sipangkur Village has been formed since 2019, but its role and function still on a household scale and not optimal in managing oil palm plantation waste due to lack of knowledge and technology. The objective of this community service was to empower the Tunas Jaya WFG to optimize the existence of oil palm plantations, by managing oil palm plantation waste to be as organic fertilizer (compost). This community empowerment began with dissemination, counseling, followed by demonstrations and assistance in making compost from oil palm fronds and empty oil palm bunches (EFBs). Furthermore, monitoring and evaluation are carried out for 3 months after it. During the dissemination, participants actively discussed about the proper composting techniques. The response and enthusiasm of them showed that this program had succeeded in increasing their curiosity about the importance of managing oil palm plantation waste to have added value. During the demonstration and assistance activities for making compost, the farmer groups were assisted and guided by the community service team, such as in the chopping of fronds and EFBs. Application of the proper composting technique will provide of effectiveness and efficiency of resources. In addition, compost can be a substitute of synthetic/chemical fertilizers and supports the ecosystem sustainability. The enthusiasm of the farmer groups and the community, as well as the successful of independent compost production are evidence and indicators of the successful of this community service activity.
Pengaruh Suhu Pengeringan Pada Alat Pengering Tipe Rak Terhadap Mutu Tepung Porang (Amorphophallus muelleri Blume) Ifmalinda, Ifmalinda; Guci, Krisna; Cherie, Dinah
Rona Teknik Pertanian Vol 17, No 1 (2024): Volume No. 17, No. 1, April 2024
Publisher : Department of Agricultural Engineering, Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17969/rtp.v17i1.30336

Abstract

Abstrak. Umbi porang (Amorphopallus muelleri Blume) adalah salah satu jenis umbi-umbian yang bernilai ekonomis tinggi karena mengandung glukomanan yang kaya akan manfaat dan berpotensi diolah menjadi tepung porang. Salah satu tahpan yang sangat penting dalam produksi tepung adalah proses pengeringan. Penelitian ini bertujuan untuk mengkaji pengaruh suhu pengeringan terhadap mutu tepung porang pada proses pengeringan dengan menggunakan alat pengering tipe rak dengan sumber panas dari pembakaran gas. Penelitian ini menggunakan metode eksperimen dengan rancangan acak lengkap (RAL) satu faktor yaitu suhu pengeringan. Suhu pengeringan yang diuji adalah suhu 45 C, 50 C dan 55 C. Hasil penelitian ini menunjukkan bahwa suhu pengeringan berpengaruh nyata terhadap mutu tepung porang. Mutu tepung porang terbaik diperoleh pada suhu pengeringan 55C dengan kadar air sebesar 11,104%, kadar abu sebesar 5,816%, kadar glukomanan sebesar 17,785%, rendemen sebesar 13,444%, dan modulus kehalusan tepung sebesar 2,556.The Effect of Drying Temperature in a Tray Dryer on the Quality of Porang Flour (Amorphophallus muelleri Blume)Abstract. Amorphopallus muelleri Blume, often known as porang tuber is a type of tuber with significant commercial importance due to the presence of glucomannan which has numerous health benefits and may be converted into porang flour. The drying process is one of the most important steps in the producing flour. This study uses a tray drier with the heat energy produced from gas stove. The objective of the study is to determine the influence of drying temperature against the quality of porang flour. The study had been conducted by completely randomized design (CRD) experimental at 3 levels of drying temperatures, 45, 50, and 55C. Results showed that the drying temperature significantly affects the quality of porang flour including yield, glucomannan content, water content, ash content, and flour fineness modulus. The optimal quality of porang flour was achieved at drying temperature of 55C. The characteristic of porang flour were moisture content of 11.104%, ash content of 5.816%, glucomannan content of 17.785%, yield of 13.444%, and flour fineness modulus of 2,556.
Co-Authors - Andasuryani Andasuryani Andasuryani Anggraini, Ramah Ansharullah, Aziz Arlius, Feri Ashadi Hasan Asmuti, Ayendra Azrifirwan, Azrifirwan Cherie Dinah, Cherie Dea Permata Sari Derosya, Vioni Dini Megatama Soparani Ediset, Ediset Elsa Fitria Erigas Ekaputra Fahmi Fitrio Fauzi Feri Arlius Fitri Yuwita Fresmiyanti, Mia Guci, Krisna Gurning, Melia Elius Putri Harjuniati, Weni Husein Lubis Hutahuruk, Santa Brightness Imas Siti Setiasih Iriwad Putri Khandra Fahmi Khandra Fahmy Lii Shaufana Melia Elius Putri Gurning Mia Fresmiyanti Mimin Muhaemin Mizan, Irfathil Muhammad Makky Mutiara Helmi, Annisa Nelty, Hanny Nadhila Nika Rahma Yanti Nindi Elisa Nofri Yandi Nurdianti Lutfiah Zein Nurul Hanisah Oktavionry, P.A Omil Charmyn Chatib P.A Oktavionry Putri, Iriwad Rahmi, Suaidah Ratna Wardani Renny Eka Putri, Renny Eka Riska Westri Windasari Rizka Putri Indramora Nasution Santos Santos Sarifah Nurjanah Silvia Rosa Siska Dwi Putri Siti Azzahra Kurnia Siti Azzahra Kurnia Srilanang, Suai Namun Suaidah Rahmi Tasya Putri Herman Tjandra, Moh. Agita Wiranda Erza Pratama Wulan Kumala Sari Yustika, Wildan Zikrillah Zein, Nurdianti Lutfiah Zhefira Fitriyah