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Kumalaningrum, Amalia Nur
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PENGARUH KONSENTRASI PELARUT ETANOL PADA EKSTRAKSI SENYAWA ANTIOKSIDAN KULIT NANAS (Ananas comosus L.) DENGAN METODE SOKLETASI Kumalaningrum, Amalia Nur; Munfarida, Siti; Simamora, Gevbry Ranti Ramadhani; Herlin, Farrah Widy; Bachtiar, Nova
Jurnal Sains dan Teknologi Pangan Vol 8, No 6 (2023):
Publisher : JURUSAN ILMU DAN TEKNOLOGI PANGAN, UNIVERSITAS HALU OLEO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33772/jstp.v8i6.45283

Abstract

ABSTRAK Tujuan penelitian ini untuk mengetahui pengaruh konsentrasi pelarut etanol pada ekstraksi antioksidan dari kulit nanas. Kulit nanas didapatkan dari wilayah Balikpapan Utara. Kulit nanas dikeringkan pada suhu 60°C dan berat sampel berkurang 78,70%. Sampel kering dihaluskan hingga berukuran 100 mesh. Ekstraksi dilakukan dengan metode Soxhlet selama 4 jam dengan menggunakan variasi pelarut etanol dengan konsentrasi 25%, 40%, 55%, 70% dan 85%. Larutan hasil ekstraksi dievaporasi 50 – 60°C hingga membentuk ekstraks kental etanol yang berwarna kuning kecokelatan dengan bau khas nanas. Hasil perhitungan rendeman menunjukkan bahwa tidak ada perbedaan signifikan ekstraksi dengan pelarut etanol dengan konsentrasi 25 – 70%, yaitu kurang 10%. Rendeman tertinggi diperoleh dari ekstraksi dengan 85% pelarut etanol, yaitu sekitar 20%. Analisis fitokimia dilakukan dengan uji kualitatif beberapa senyawa antioksidan, yaitu flavonoid, alkaloid, polifenol, terpenoid dan steroid. Ekstrak etanol kulit nanas mengandung flavonoid dan polifenol pada setiap variasi konsentrasi pelarut etanol, namun negatif terhadap alkaloid dan steroid. Hanya ekstrak etanol dari 55 – 85% pelarut etanol yang memberikan hasil positif pada terpenoid. Ekstrak etanol dari 85% etanol memiliki intensitas perubahan warna yang paling tinggi. Sehingga, ekstraksi kulit nanas menggunakan metode sokletasi memberikan hasil yang optimal dengan menggunakan pelarut 85% etanol.
PENINGKATAN PENGETAHUAN PENGGUNAAN BAHAN TAMBAHAN PANGAN NON-NUTRITIVE SWEETENERS PADA SISWA SMPN 24 BALIKPAPAN Arista, Yuvita Lira Vesti; Hutabarat, Michael Alexander; Ciciolini Sidabutar, Elizabeth Desfelia; Kumalaningrum, Amalia Nur
Jurnal Abdimas Gorontalo (JAG) Vol 7 No 2 (2024): Jurnal Abdimas Gorontalo (JAG), November 2024
Publisher : UPPM Politeknik Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jag.v7i2.1423

Abstract

Students often tend to consume snacks or street food without understanding the ingredients contained in the products they eat and are less selective in choosing healthy food options. This behavior can have negative consequences if the consumed products contain food additives (Bahan Tambahan Pangan, BTP) that are prohibited by regulations or exceed the permissible limits. Therefore, this community service activity aimed to enhance the knowledge of students at SMPN 24 Balikpapan regarding the use of non-nutritive sweeteners (NNS) as a type of BTP in food products, including their regulatory limits and the potential health impacts of excessive consumption. The activities consisted of field observation, socialization, mentoring, and evaluation. The socialization phase included material presentations, discussions, and the identification of food products containing NNS. Mentoring sessions introduced the types of NNS, guided the identification of products, and simulated their usage in compliance with regulatory limits. The success of the activity was evaluated through a multiple-choice test with a minimum passing grade of 60. Evaluation results indicated that the average score of the 40 participants was 76.5, and the program was considered successful, as all participants managed to complete the evaluation with a minimum score of 60. This initiative successfully enhanced students' understanding of the appropriate use of NNS in food products and raised awareness about the importance of choosing safe and healthy foods.
PENINGKATAN PENGETAHUAN PENGGUNAAN BERBAGAI BAHAN TAMBAHAN PANGAN PADA SISWA SMKN 4 BALIKPAPAN Hutabarat, Michael Alexander; Arista, Yuvita Lira Vesti; Kumalaningrum, Amalia Nur; Manihuruk, Hendrik Vicarlo Saragih; Batubara, Yongki Christandi
Jurnal Abdimas Gorontalo (JAG) Vol 7 No 2 (2024): Jurnal Abdimas Gorontalo (JAG), November 2024
Publisher : UPPM Politeknik Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30869/jag.v7i2.1424

Abstract

The use of Food Additives (BTP) has become increasingly common in food products, especially school snacks. This is a big challenge, where school students need to be educated about Food Additives in the food or drinks they consume, including the types that are allowed and prohibited. Students of SMKN 4 Balikpapan have often consumed snacks containing Food Additives without realizing it. Through this community service program, it is hoped that students' knowledge about Food Additives through socialization and mentoring can increase. This activity includes socialization, interactive discussions, and pre-test and post-test evaluations to measure the effectiveness of the program. It is hoped that after receiving this socialization, students' awareness will increase and can create healthy consumption habit among students.
Enhanced Recovery of Bioactive Compound from Pineapple Peel Using Ultrasonic-Assisted Extraction with Enzyme Treatment at Varying Extraction Time Kumalaningrum, Amalia Nur; Arini, Zulmilafatma Nurlita; Hidayat, Jefri Pandu
Indonesian Journal of Chemical Research Vol 12 No 3 (2025): Edition for January 2025
Publisher : Jurusan Kimia, Fakultas Sains dan Teknologi, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/ijcr.2025.12-kum

Abstract

Pineapple peel is considered waste, but it has numerous beneficial uses due to its rich content of nutrients and bioactive compounds. The selection of extraction methods is essential to produce optimal bioactive compound extracts. Ultrasonic-assisted extraction (UAE) is a modern extraction technique that uses ultrasonic waves to improve the extraction by enhancing the release of compounds into the solvent. The UAE method was performed by varying extraction times at 30, 60, 90, and 120 min. The addition of cellulase enzyme was also applied as an optimization method for the extraction results. The addition of Cellulase elevated the yield, phenolic, and flavonoid content. The highest yield was obtained at an extraction time after 90 min. The highest total flavonoid content was 497.8±4.5 µgQE/mL, while the highest total phenolic value was 1007.6±7.6 µgGAE/mL at extraction of 60 min. However, the extracted samples without enzymes performed the highest results at an extraction of 90 min. The effect of the enzyme resulted in the most potent antioxidant activity (<10 ppm) in all-time extraction. To conclude, the addition of enzymes in the extraction process successfully optimized the extraction of phytochemical compounds from pineapple peel, as evidenced by testing phenolic and flavonoid content and antioxidant activity.
Production of Rubber Seed Oil: Study of Parameters and some Food Oil Properties Yuniar, Rizka Ayu; Pusfitasari, Memik Dian; Kumalaningrum, Amalia Nur; Malcheli, Etni Jechonia; Saleha, Shela; Silmina, Silmina
Jurnal Rekayasa Kimia & Lingkungan Vol 19, No 1 (2024): Jurnal Rekayasa Kimia & Lingkungan (June 2024 )
Publisher : Chemical Engineering Department, Syiah Kuala University, Banda Aceh, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23955/rkl.v19i1.37167

Abstract

Rubber seeds are one of the plantation commodities that are underutilized by the Indonesian people, apart from being the generative seeds of rubber trees. Rubber seeds have a reasonably high vegetable oil content of 68.53% with a carbohydrate content of 6.99%, protein content of 17.41%, and ash content of 3.08%. This study aimed to obtain food oil from rubber seeds with fewer chemicals and more affordable production costs. This study investigates the properties of food oil from rubber seeds and analyzes the cyanide content. The oil extracted using the traditional method yielded an 8.48% oil content. The rubber seeds were soaked for four days with rice husk charcoal (1:1) to reduce cyanide levels, followed by cooking to obtain the oil and bleaching with bentonite for purification. The oil was characterized according to Indonesian National Standards (SNI), assessing cyanide content, organoleptic properties, water content, acid values, and peroxide numbers. The resulting oil had a density of 0.87 g/cm and a cyanide content of 0.54 ppm. The tests showed a water content of 0.04%, an acid value of 0.4 mg NaOH/g, and organoleptic properties that met SNI standards. However, the peroxide value of 13.5 meq O2/kg was slightly above the standard, making the oil non-edible.
Proyeksi Kebutuhan Pangan (Beras) dan Air Bersih di Wilayah Penyangga IKN Tahun 2045 Trees Sandy, Aisyah; Khotimah, Khusnul; Saputri, Eka; Wulandari, Nani; Maharini, Maulidiya; Prawiguna, Erick; Sofi, Ernanda; Kumalaningrum, Amalia Nur
geoedusains: Jurnal Pendidikan Geografi Vol. 6 No. 1 (2025)
Publisher : Pendidikan Geografi Fakultas Keguruan dan Ilmu Pendidikan Universitas Mulawarman

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geoedusains.v6i1.5301

Abstract

Sensus Penduduk tahun 2020 mencatat penduduk Kalimantan Timur pada bulan September 2020 sebanyak 3,77 juta jiwa. Sejak tahun 2010, jumlah penduduk Kalimantan Timur mengalami penambahan sekitar 737.552 jiwa, atau rata-rata sebanyak 73.755 jiwa setiap tahun. Pertumbuhan penduduk pada periode 2010-2020 adalah sebesar 2,13%. Dengan semakin meningkatnya pertambahan penduduk maka kebutuhan pangan terutama kebutuhan beras dan air bersih juga semakin meningkat. Penelitian ini bertujuan untuk mendeskripsikan proyeksi kebutuhan pangan (beras) dan air bersih di daerah penyangga IKN Penajam Paser Utara (PPU), Balikpapan dan Samarinda) tahun 2045. Metode penelitian ini adalah deskriptif. Teknik analisis data menggunakan rumus aritmatik (proyeksi penduduk), 113,48 kg/kapita/tahun (kebutuhan beras) dan 70 liter/kapita/hari (kebutuhan air menurut Permenkes No. 32 tahun 2017) . Hasil penelitian menunjukkan bahwa proyeksi kebutuhan pangan (beras) di daerah penyangga IKN tahun 2045 yaitu Kota Balikpapan sebesar116.316 ton, Kabupaten PPU sebesar 34.856 ton, dan Kota Samarinda sebesar 120.699 ton. Proyeksi kebutuhan air bersih di wilayah penyangga IKN tahun 2045 yaitu Kota Balikpapan sebesar 71.749.720 liter/hari, Kabupaten PPU sebesar 21.506.800 liter/hari dan Samarinda sebesar 74.453.190 liter/hari. Data proyeksi kebutuhan pangan (beras) dan air bersih tersebut dapat dijadikan acuan bagi pemerintah untuk melakukan berbagai inovasi dan strategi dalam memenuhinya, bahkan tidak menutup kemungkinan bisa terjadi surplus sehingga tidak terjadi kelangkaan pangan dan air di wilayah penyangga IKN
Evaluation of Eucheuma cottonii and Gracilaria sp. as Food Buffer for The Ibu Kota Nusantara (IKN) Based on Proximate Analysis Simamora, Gevbry Ranti Ramadhani; Kumalaningrum, Amalia Nur; Munfarida, Siti; Siwi, Olga Galih Rakha
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 3 (2025): June 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i3.836-845

Abstract

East Kalimantan Province has great opportunities as a buffer for the IKN economy based on the utilization of marine potential. Eucheuma cottonii and Gracilaria sp. are the red seaweeds (Rhodophyta) most widely cultivated in Indonesia. This study aims to analyze the proximate content in two types of red seaweed, namely E. cottonii (offshore cultivation) and Gracilaria sp. (pond cultivation) obtained from farmers in dry conditions cultivated around the waters of Balikpapan, East Kalimantan, Indonesia. The results of the analysis showed significant differences between cultivation locations. Gracilaria sp. (pond cultivation) taken from Handil (HTK) and Babulu Laut (BALUKE) is considered potential because it has low water content (HTK 26.99 ± 0.02%), and has higher ash content (BALUKE 31.18 ± 0.41%), fat (BALUKE 0.36 ± 0.01%), protein (BALUKE 10.01 ± 0.01%), and crude fiber (HTK 1.90 ± 0.16%) compared to E. cottonii. These findings provide important information for the development of seaweed as a natural resource for the food and health industries. Keywords: Eucheuma cottonii, Food industry, Gracilaria sp., proximate content, Red seaweeds
DESAIN DAN PENGEMBANGAN POJOK LITERASI DAN PELATIHAN SOSIAL MEDIA PADA RT. 62 KELURAHAN GRAHA INDAH Kumalaningrum, Amalia Nur; Winarni; Adhitya, Sayid Rifqy; Putri, Sabrina Aulia; Siagian, Joel Parulian Apriadi; Immanuel, Legi Raymond; Panjaitan, Shindi Claudia; Manik, Anriyani; Tari, Sarnita; Dewi, Rachel Glory Julyana
Jurnal Abdi Insani Vol 11 No 3 (2024): Jurnal Abdi Insani
Publisher : Universitas Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/abdiinsani.v11i3.1713

Abstract

Community service is an activity involving universities and the community to improve the standard of living and knowledge of the community. Kampoeng FABA in Graha Indah Village RT 62, North Balikpapan, is one of the areas that requires special attention in this program. Based on the survey results, it was found that the Kampoeng FABA environment is diverse and developing, but faces the problem of low interest in reading for children and the ability of residents to manage social media. The purpose of this activity was to significantly increase children's interest in reading and to reduce the influence of dependence on the use of gadgets. This activity also aimed to strengthen the ability of residents to manage Kampoeng FABA social media, thereby creating an environment that supported digital skills. There were two main programs in this activity, namely the development and design of literacy corners and social media management training. The development of literacy corners was carried out by providing books and tools to support children's literacy. The training was performed with two themes, namely training on the use of Instagram and design training with Canva. The results of this activity were realized with the formation of a literacy corner that provides a variety of children's books and the holding of educational competitions for children as a stimulus for reading culture and socialization of literacy corners. Instagram and Canva training activities could improve residents' knowledge and skills in utilizing social media accounts. Evaluation of participants' understanding of social media showed an increase of 25% after participating in the training. The results of the participant satisfaction questionnaire showed that 100% of training participants gave a positive response that this training helped improve understanding of the use of social media and the material presented was very useful. The development of literacy corners and social media training could support increasing children's interest in reading and strengthen the ability of Kampoeng FABA residents to utilize social media more productively.
Optimasi ekstraksi karagenan dari Kappaphycus alvarezii berbantu metode enzim selulase dan gelombang ultrasonik : Optimization of carrageenan extraction from Kappaphycus alvarezii using ultrasonic-assisted cellulase extraction (UACE) Kumalaningrum, Amalia Nur; Poeloengasih, Crescentiana Dewi; Azhary, Muhammad Fachrul; Sholihah, Ni’matus; Syafitri, Tatia Asnur; Sabillah, Hana; Nusantara, Bangun Garuda; Christyandari, Debora Ayu
Jurnal Pengolahan Hasil Perikanan Indonesia Vol. 28 No. 2 (2025): Jurnal Pengolahan Hasil Perikanan Indonesia 28(2)
Publisher : Department of Aquatic Product Technology IPB University in collaboration with Masyarakat Pengolahan Hasil Perikanan Indonesia (MPHPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17844/jphpi.v28i2.61454

Abstract

Karagenan merupakan polisakarida bernilai ekonomi tinggi yang diperoleh dari alga merah sebagai bahan pengental maupun penstabil diberbagai industri. Metode ekstraksi karagenan yang umum digunakan di industri melibatkan proses alkali panas dengan waktu cukup panjang sehingga tidak efisien dan menghasilkan banyak limbah. Oleh karena itu, perlu teknik ekstraksi yang dapat meningkatkan efisiensi dan mengurangi dampak lingkungan. Penelitian ini bertujuan menentukan kondisi optimum ekstraksi kappa-karagenan K. alvarezii menggunakan metode UACE berdasarkan persentase rendemen dan kualitas fisikokimia. Variabel yang diamati pada penelitian ini adalah rasio pelarut dan rumput laut (20–100 mL/g), konsentrasi enzim selulase (2–10%) dan waktu ultrasonikasi (20–100 menit). Karagenan dari K. alvarezii yang telah mendapatkan praperlakuan selanjutnya diekstrak pada suhu 80-90ºC selama 30 menit, dikarakterisasi dan dibandingkan dengan karagenan murni sesuai SNI 8391-1:2017. Kenaikan rasio pelarut:rumput laut, jumlah enzim dan waktu ultrasonik dapat menaikkan rendemen karagenan hingga mencapai 62%. Karagenan yang dihasilkan memiliki warna yang lebih gelap dibandingkan karagenan komersial. Karagenan memiliki kadar air, sulfat, viskositas, kandungan logam berat sesuai SNI, sedangkan kadar abu dan abu tak larut asam melebihi SNI serta kekuatan gel dari karagenan masih di bawah SNI. Karagenan masih mengandung unsur N yang menunjukkan ketidakmurnian karagenan. Hasil spektrum FTIR menunjukkan bahwa karagenan yang diperoleh merupakan jenis kappa-karagenan. Penelitian lebih lanjut masih diperlukan untuk mengevaluasi pengaruh UACE sebagai perlakuan awal dalam proses ekstraksi karagenan sehingga tidak hanya meningkatkan jumlah karagenan, tetapi juga mutu karagenan yang dihasilkan.
Co-Authors Adhitya, Sayid Rifqy Arini, Zulmilafatma Nurlita Azhary, Muhammad Fachrul Bachtiar, Nova Batubara, Yongki Christandi Christyandari, Debora Ayu Ciciolini Sidabutar, Elizabeth Desfelia Dewi, Rachel Glory Julyana Eka Saputri, Eka Herlin, Farrah Widy Immanuel, Legi Raymond Jefri Pandu Hidayat khusnul khotimah Maharini, Maulidiya Malcheli, Etni Jechonia Manihuruk, Hendrik Vicarlo Saragih Manik, Anriyani Michael Alexander Hutabarat Munfarida, Siti Nusantara, Bangun Garuda Panjaitan, Shindi Claudia Poeloengasih, Crescentiana Dewi Prawiguna, Erick Pusfitasari, Memik Dian Putri, Sabrina Aulia Rizka Ayu Yuniar Sabillah, Hana Saleha, Shela Sholihah, Ni’matus Siagian, Joel Parulian Apriadi Silmina, Silmina Simamora, Gevbry Ranti Ramadhani Siwi, Olga Galih Rakha Sofi, Ernanda Syafitri, Tatia Asnur Tari, Sarnita Trees Sandy, Aisyah Winarni Wulandari, Nani Yuvita Lira Vesti Arista