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All Journal Jurnal Periodic Jurusan Kimia UNP SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Pelita Eksakta Mikroba: Jurnal Ilmu Tanaman, Sains dan Teknologi Pertanian Helium: Journal of Science and Applied Chemistry
Della Rosalynna Stiadi
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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THE MAKING NATA DE ORANGE USING JUICEED ORANGE FRUIT EXTRACT (CITRUS SINENSIS (L.) OSBECK): PEMBUATAN NATA DE ORANGE MENGGUNAKAN EKSTRAK BUAH JERUK PERAS (CITRUS SINENSIS (L.) OSBECK) Rahmat Ilham Perdana; Amelia, Fitri; Rosalynna Stiadi, Della; Marlini, Rahmida; Aprilianti, Cindy
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 1 (2025): Publikasi Penelitian Kimia dan Terapannya 2025
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i1.4122

Abstract

Penelitian ini bertujuan untuk mengetahui pemanfaatan buah jeruk sebagai bahan dasar produk olahan pangan, mengetahui pemanfaatan bahan dasar lain dalam pembuatan nata (selain kelapa), mengetahui ekstrak buah jeruk peras dapat digunakan dalam pembuatan nata de orange, mengetahui dan membandingkan kadar vitamin C, kadar asam asetat, kadar air dan organoleptik pada dua produk nata yang berbeda yakni nata de orange yang disintesis serta nata de coco pasaran. Jeruk peras dapat dijadikan sumber utama pembuatan nata selain air kelapa , karena dapat mengurangi penggunaan gula sebagai sumber karbohidrat dan urea sebagai sumber asam amino yang berperan penting untuk pertumbuhan bakteri Acetobacter Xylinum penghasil selulosa nata. Ekstrak perasan buah jeruk yang dipakai dalam penelitian ini mempunyai kadar protein sebesar 0,385% dan kadar karbohidrat sebesar 13,555%. Metode yang digunakan pada penelitian ini yaitu fermentasi nata de orange pada suhu 27-300C selama 10 hari. Untuk menentukan kadar vitamin C digunakan metode titrasi iodimetri, untuk menentukan kadar asam asetat digunakan metode titrasi asam basa (netralisasi), untuk menentukan kadar air digunakan metode pengeringan gravimetri. Hasil penelitian menunjukan bahwa nata de orange memiliki kadar vitamin C sebesar 5,02%, kadar asam asetat sebesar 0,040%, kadar air sebesar 82,3%. Nata de orange memiliki kadar vitamin C dan kadar air yang lebih tinggi serta kadar asam asetat yang lebih rendah dibandingkan nata de coco pasaran. Untuk uji organoleptik, nata de orange memiliki penilaian rata-rata 3,52, 3,33, 3,42, 3,57 dari 21 orang responden untuk warna, aroma, rasa, dan tekstur. Berdasarkan hasil penelitian yang telah dilaksanakan maka ekstrak air jeruk peras dapat digunakan sebagai bahan dasar pengganti air kelapa dalam pembuatan nata.
FORMULASI PUPUK ORGANIK CAIR (POC) BERBAHAN LIMBAH KULIT BAWANG MERAH, KULIT JERUK, KULIT NANAS, DAN AIR CUCIAN BERAS DENGAN PENAMBAHAN EM4: Pembuatan Pupuk Organik Cair (POC) dari Kulit Bawang Merah, Kulit Jeruk, Kulit Nanas dan Air Cucian Beras dengan Penambahan EM4 Mardi; Kurniawati, Desy; Rosalynna Stiadi, Della; Putri Ana, Aziza; Rara Bahri, Rayhani; Rahayu Ningsih, Sri
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 1 (2025): Publikasi Penelitian Kimia dan Terapannya 2025
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i1.5099

Abstract

One solution to overcome the problem of household organic waste is to use technology to process it into liquid organic fertilizer (POC). POC is a solution that contains one or more essential nutrients that are easily absorbed by plants. The main ingredient for making quality POC comes from organic waste, especially wet organic material with high water content, such as fruit and vegetable waste. Several types of waste, such as onion peels, orange peels and pineapple peels, can be processed into POC by adding EM4 as an activator. This research aims to process fruit and vegetable waste into POC, improve skills in making it, and compare the effectiveness of POC with NPK fertilizer on the growth of chili plants. The process of making POC is carried out by mixing onion peel, orange peel and pineapple peel waste with water, rice washing water and brown sugar solution, then adding EM4. This mixture is fermented for seven days with daily stirring and ventilation. The research results show that the POC produced has good nutritional content and can be used as organic fertilizer.
Analisis Pengaruh Waktu terhadap Kualitas VCO (Virgin Coconut Oil) Berbau Tengik dan Berbau Harum Santan dengan Metode tanpa Pemanasan Deffia Aryati Putri; Dzakma Putri Alsa; Ghina Khairiyah; Tashania Zhahyra; Della Rosalynna Stiadi; Jon Efendi
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 2 No. 2 (2025): August : Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v2i2.406

Abstract

This study aims to evaluate the effect of different settling times on the quality of Virgin Coconut Oil (VCO) produced without heating (cold process), by comparing two time variations: 3 hours and ±18 hours (variation 1) and 4 hours and ±24 hours (variation 2), through organoleptic tests (color, aroma, taste), acid value, and pH analysis. The results showed that VCO from variation 2 had better quality, with a clear color, a fresh coconut-like aroma, a pleasant taste, an acid value of 1.707 mg KOH/g, and a pH of 6.4–6.5, all of which met the quality standards of SNI 7381-2008. In contrast, variation 1 showed imperfections in oil separation due to shorter settling time, which triggered oxidation and fat hydrolysis. Thus, optimal settling time in the cold process method is a key factor in producing high-quality VCO that is free from rancid odor.
Pembuatan Teh Herbal dari Bunga Telang (clitoria ternatea l) Dengan Variasi Penambahan Lemon (citrus limon l) Untuk Uji Antioksidan Zhahyra, Tashania; Deffia Aryati Putri; Dzakma Putri Alsa; Ghina Khairiyah; Della Rosalynna Stiadi
Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian Vol. 2 No. 2 (2025): August : Mikroba : Jurnal Ilmu Tanaman, Sains Dan Teknologi Pertanian
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/mikroba.v2i2.422

Abstract

Bunga telang (Clitoria ternatea L.) also known as blue pea, is a distinctive flower with single petals, that come in purple, blue, pink, and whote color. This flower is widely used as a natural colorant due to its high anthocyanin content, lemon juice was added to butterfly pea flower to determine antioxidant activity based on the number of hydroxyl groups capable of donating hydrogen atoms to free radical compounds. The color change observed is influenced by the acidity level (pH) of the beverage. Lemon contains a high amount of citric acid, which can flower the pH of the butterfly peaextract solution.  The colot change from blue to purple, redpr even pink indicates reaction anthocyanins to pH changes. Antioxidant activity was teste using the DPPH ( 2,2-diphenyl-picrylhydrazil) method, which measueres the samples ability to scavenge free radical. The lower the IC 150 value obtained, the stronger the antioxidant capacity of the substance. The results showed that the water content in butterfly pea tea was 15,5% and total ash content in butterfly and total ash content was 8%. The IC 50 value obtained was 53,65 which is classified as very strong in antioxidant activity and shows great potential as a natural antioxidant source
Studi Pemanfaatan Rumput Liar Pekarangan Rumah sebagai Bahan Baku Pembuatan Ekoenzim Syafriadi, Riko; Nizar, Umar Kalmar; Stiadi, Della Rosalynna; Zuyyina, Himla; Fitriani, Fitriani; Fika, Miva Hemalia; Fadhila, Radhiatul; Syafri, Vanny Sofiana
Periodic Vol 14, No 2 (2025): PERIODIC
Publisher : Departemen Kimia FMIPA UNP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/periodic.v14i2.133838

Abstract

Wild grass is a plant that grows unwanted in certain areas such as fields, gardens, agricultural land and yards. This plant is generally discarded and rarely used. Based on the composition of the materials used in ecoenzymes, fresh wild grass plants have great potential to be used as raw materials for ecoenzymes. This study aims to determine the characteristics of ecoenzymes produced using wild grass from home gardens, such as fragrant nutsedge (Cyperus aromaticus var. Elatus), virginica grass (Leersia virginica), Belulang grass (Eleusine indica), Peking grass (Agrostis stolonifera) and Ilalang (Imperata cylindrica). Wild grass with a certain composition is mixed with brown sugar and water in a ratio of 3: 1: 10 in five containers. The ecoenzyme manufacturing process is carried out for 90 days and changes in color, odor, and pH of the ecoenzyme product are observed. The results of this study indicate that the color of the five ecoenzymes produced shows a change in color to become more cloudy than the initial color of the ecoenzyme. The odor of the five ecoenzymes produced showed a change in odor to become more sour in the third month like the typical odor of weeds. Meanwhile, the pH of the ecoenzymes produced ranged from 5.8 to 7.8. The high pH of the ecoenzymes produced was caused by the low organic acid content of the ecoenzymes produced. In addition to observing the physical condition and pH of the ecoenzymes produced, qualitative testing of the nutrient content in the form of N, P and K was also carried out. Testing of the nutrient content of N, P and K carried out showed that the ecoenzymes produced from home yard weeds contained the nutrients N, P and K. These results indicate that the ecoenzymes produced can also be used as liquid organic fertilizers
Processing Trash Fish into Economically Valuable Animal Feed in Nagari Pilubang, Padang Pariaman Regency Sari, Trisna Kumala; Away, Romy Dwipa Yamesa; Suryani, Okta; Yeni, Isra; Aini, Syamsi; Kurniawati, Desy; Nasra, Edi; Stiadi, Della Rosalynna
Pelita Eksakta Vol 7 No 1 (2024): Pelita Eksakta, Vol. 7, No. 1
Publisher : Fakultas MIPA Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/pelitaeksakta/vol7-iss1/221

Abstract

There has been concealed on the processing of trash fish into animal feed in Nagari Pilubang, Padang Pariaman Regency. The majority of the Pilubang community are fishermen. However, so far the trash fish caught have not been processed properly. Meanwhile, trash fish has the potential to be used as animal feed because it contains high protein. Through this PKM activity, the community receives education and training regarding the application of technology for processing trash fish into animal feed using appropriate technology. The animal feed was made from trash fish is processed using a fermentation process. From the results of this activity, it is known that community knowledge has increased and is very useful for implementation by the community in Nagari Pilubang
A Study on the Addition of Sweet Orange (Citrus sinensis L) to Reduce Goaty Odor in Goat Milk-Based Yogurt Desfi, Annisa; Stiadi, Della Rosalynna; Aulia, Nurul; Nasution, Rahma Dika Aulia
Helium: Journal of Science and Applied Chemistry Vol. 4 No. 2 (2024): Helium: Journal of Science and Applied Chemistry
Publisher : Study Program of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Pakuan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33751/helium.v4i2.6

Abstract

This study aimed to reduce the goaty odor in goat milk yogurt by adding sweet orange (Citrus sinensis L). Yogurt was prepared with varying concentrations of sweet orange: 0%, 5%, 10%, and 15% (v/v). The yogurt characteristics analyzed included organoleptic properties, pH, lactic acid, protein, and moisture content. Results showed that adding 15% sweet orange was most effective in reducing goaty odor and increasing consumer preference. The yogurt pH remained stable at 4, while lactic acid content increased to 1.35% compared to the control (1.26%). Protein content decreased with increasing orange concentration, while moisture content increased. This study concludes that adding sweet oranges effectively reduces the goaty odor in goat milk yogurt, although attention should be paid to the decrease in protein content. These findings open opportunities for developing more appealing goat milk yogurt products for Indonesian consumers.
Penguatan literasi kosmetik aman guru MGMP kimia Kota Padang melalui edukasi dan pelatihan Sandrawati, Neny; Thaitami, Siti Hajar; Away, Romy Dwipa Yamesa; Stiadi, Della Rosalynna
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 1 (2026): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i1.36631

Abstract

Abstrak Peredaran kosmetik ilegal tanpa izin Badan Pengawas Obat dan Makanan (BPOM) yang mengandung bahan berbahaya seperti merkuri, hidrokuinon, dan rhodamin masih menjadi permasalahan kesehatan masyarakat. Kosmetik ilegal berpotensi menimbulkan dampak toksik akut maupun kronis bagi penggunanya. Dalam konteks tersebut, Guru Musyawarah Guru Mata Pelajaran (MGMP) Kimia Kota Padang memiliki peran strategis sebagai agen literasi kimia, namun penguatan kapasitas melalui peningkatan pengetahuan dan pelatihan teknis masih diperlukan untuk mendukung kemampuan identifikasi kosmetik yang aman dan legal. Program pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan guru mengenai bahaya kosmetik ilegal, keterampilan membaca label, kemampuan mengecek legalitas melalui aplikasi BPOM, serta pemahaman teknik penggunaan kosmetik yang benar sesuai jenis kulit. Kegiatan ini melibatkan 40 orang guru. Tahapan pelaksanaan kegiatan meliputi penyuluhan oleh narasumber, pelatihan terstruktur, dan simulasi praktik langsung yang diikuti oleh peserta. Hasil program pengabdian masyarakat menunjukkan hasil yang positif, dengan peningkatan signifikan pada pengetahuan dan keterampilan peserta, tercermin dari naiknya skor pada 11 dari 15 pertanyaan pre-test dan post-test (p < 0,05). Kegiatan ini terbukti efektif memperdalam pemahaman peserta mengenai risiko kosmetik ilegal, cara menilai label dan bahan berbahaya, serta penggunaan aplikasi BPOM Mobile, sehingga mendorong peningkatan kesadaran dalam memilih produk kosmetik yang aman. Kata kunci: BPOM; guru; kosmetik ilegal; merkuri. Abstract The circulation of illegal cosmetic products without authorization from the Indonesian Food and Drug Authority (BPOM), which often contain hazardous substances such as mercury, hydroquinone, and rhodamine, remains a significant public health concern. These products may cause both acute and chronic toxic effects in users. In this context, teachers of the Chemistry Subject Teachers’ Association (MGMP) in Padang City play a strategic role as agents of chemical literacy; however, strengthening their capacity through enhanced knowledge and technical training is still required to support their ability to identify safe and legally approved cosmetic products. This community service program aimed to improve teachers’ knowledge of the risks associated with illegal cosmetics, skills in reading product labels, ability to verify product legality using the BPOM Mobile application, and understanding of proper cosmetic use according to skin type. The program involved 40 chemistry teachers and was implemented through several stages, including educational lectures, structured training sessions, and hands-on practice simulations. The results demonstrated a positive impact of the program, with a significant improvement in participants’ knowledge and skills, as reflected by increased scores in 11 out of 15 pre-test and post-test questions (p < 0.05). Overall, the program was effective in enhancing participants’ understanding of the risks of illegal cosmetics, methods for evaluating labels and hazardous ingredients, and the use of the BPOM Mobile application, thereby promoting greater awareness in selecting safe cosmetic products. Keywords: BPOM; teacher; illegal cosmetic; mercury.
Pemberdayaan masyarakat Nagari Dalko melalui hilirisasi produk sabun herbal kayu manis Tasman, Anggela Marta; Sari, Yuni Mala; Andriani, Fivit; Sandrawati, Neny; Stiadi, Della Rosalynna
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 1 (2026): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i1.36623

Abstract

Abstrak Nagari Dalko memiliki potensi pertanian yang melimpah, salah satunya adalah kayu manis (Cinnamomun burmannii). Namun saat ini, potensi kayu manis belum di manfaatkan secara optimal. Oleh karena itu, kegiatan pengabdian masyarakat melalui program integrasi prodi dan nagari dilaksanakan dengan tujuan untuk meningkatkan nilai tambuh kayu manis sebagai upaya mendukung pengembangan pariwisata berbasis produk lokal di Nagari Dalko. Kegiatan ini meliputi pemberian materi mengenai sabun herbal, pelatihan pembuatan sabun herbal transparan dengan berbahan aktif kulit manis serta packaging sabun herbal. Kegiatan ini di ikuti oleh dua puluh masyarakat dari Nagari Dalko. Hasilnya masyarakat sangat mendukung adanya pelatihan pembuatan sabun herbal. Hal itu didukung oleh data angket yang menunjukkan bahwa tingkat pemahaman masyarakat Nagari Dalko mengenai sabun herbal awalnya hanya sekitar separuh responden yang mengetahui bahwa sabun dapat dibuat dari bahan alami seperti kayu manis (50%) dan yang memahami manfaat kayu manis bagi kesehatan kulit (60%). Namun, meningkat secara signifikan mencapai 90% dan 95%. Begitu pula dengan pemahaman bahwa sabun herbal lebih ramah di kulit, yang naik dari 80% menjadi 95%. Pengalaman responden dalam menggunakan sabun herbal juga meningkat dari 45% menjadi 70%, menunjukkan adanya minat baru untuk mencoba produk lokal berbahan alami. Ini menjadi peluang bagi masyarakat untuk meningkatkan pengetahuan, keterampilan sekaligus mendukung pengembang perekonomian parawisata bagi kemajuan Nagari Dalko. Kata kunci:  antibakteri; cinnamomum; pariwisata; sabun herbal; transparant. Abstract Nagari Dalko has abundant agricultural potential, one of which cinnamon (Cinnamomun burmannii). However, the potential of cinnamon has not been optimally utilized. Therefore, community servise activities through the study program and village integration program are carried out with the aim of improving the added value of cinnamon as an effort to support the development of local product-based tourism in Nagari Dalko. This activity includes providing material related to herbal soap, making transparent herbal soap with cinnamon as the active ingredient and herbal soap packaging. This activity was attended by twenty people from Nagari Dalko. The result showed that participant was supportive of herbal soap making training. This is supported by questionnaire data which shows that the level of understanding of the Nagari Dalko participants regarding herbal soap was initially Only about half of the respondents knew that soap could be made from natural ingredients such as cinnamon (50%) and understood the benefits of cinnamon for skin health (60%). However, it increased significantly to reach 90% and 95%. Similarly, the understanding that herbal soap is gentler on the skin increased from 80% to 95%. Respondents' experience using herbal soap also increased from 45% to 70%, indicating a renewed interest in trying local, natural products. This provided an opportunity for the participant to improve their knowledge and skill while supporting the development of the tourism economy for the progress of Nagari Dalko. Keywords: antibacterial; cinnamomum; herbal soap; tourism; transparent.
Co-Authors Aini, Syamsi Andriani, Fivit Aprilianti, Cindy Away, Romy Dwipa Yamesa Deffia Aryati Putri Desfi, Annisa Desy Kurniawati Devi, Hafiza Tara Dzakma Putri Alsa Edi Nasra Effendi, Velly Fadhila, Radhiatul Fika, Miva Hemalia Fitri Amelia Fitriani Fitriani Ghina Khairiyah Jon Efendi Mardi Marlini, Rahmida Nasution, Rahma Dika Aulia Nizar, Umar Kalmar Putri Ana, Aziza Rahayu Ningsih, Sri Rahmat Ilham Perdana Rara Bahri, Rayhani Romy Dwipa Yamesa Away Sandrawati, Neny Sari, Trisna Kumala Sari, Yuni Mala Siti Hajar Thaitami Suryani, Okta Syafri, Vanny Sofiana Syafriadi, Riko Tashania Zhahyra Tasman, Anggela Marta Yeni, Isra Zhahyra, Tashania Zuyyina, Himla