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PENGARUH PENGOLAHAN DAN PENYIMPANAN TERHADAP PENERIMAAN SENSORI DAN AKTIVITAS ANTIOKSIDAN MINUMAN HERBAL BAWANG DAYAK (Eleutherine palmifolia (L.) Merr) Vina Lustiana; Alia Rahmi; Agung Nugroho; Anhar Firdaus
ZIRAA'AH MAJALAH ILMIAH PERTANIAN Vol 43, No 3 (2018)
Publisher : Pusat Publikasi Jurnal Universitas Islam Kalimantan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31602/zmip.v43i3.1480

Bawang Dayak (Eleutherine palmifolia (L.) Merr.) is a plant that is often utilized by the community as a traditional medicine because it contains active compounds that have antioxidant activity. People usually prepare them by boiling. In this study, bawang dayak are processed to herbal drinks to determine the antioxidant activity during storage. The study aims of this research is to determine the best bawang dayak herbal drink based on antioxidant activity and sensory attributes by studying the effect of the processing (raw material and sweetener composition) and storage. This research uses factorial design method with randomized block design with grouping in storage time of day 0 and day 7. Factor I consists of 2 levels: fresh bawang dayak and dried bawang dayak, while factor II is unsweetened and sweetened (sucrose). The analysis were the presence of phytochemical compounds, acidity (pH), antioxidant activity (DPPH method), and sensory analysis (hedonic 1-5). The results showed that bawang dayak herbal drink made from dried herbs (40 g in 1 L water) processed by boiling for 10 minutes, and stored for 7 days showed the best antioxidant activity with the value of % inhibition of 71.49%, and IC50 of 6.15 mg/ml, sensory attributes of hedonic scale of 2.9 for color (like slightly), 2.5 for aroma (like slightly) and 2.6 for taste (like slightly).

Diterminasi Tipe Pelarut dan Proses Ekstraksi untuk Efektifitas dan Selektifitas Produksi Ekstrak Kaya Polifenol dari Euphorbia supina Agung Nugroho
Buletin Profesi Insinyur Vol 2, No 1 (2019): Buletin Profesi Insinyur (Januari-Juni)
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/bpi.v2i1.30

Polifenol, terutama bioflavonoid sedang menjadi tren dunia dalam riset pengembangan produk terutama pada industri pangan fungsional, suplemen, dan kosmetika. Keunggulan polifenol terletak padapotensinya sebagai antioksidan melalui beberapa mekanisme penangkapan radikal bebas. Peran polifenol sangat penting dalam mencegah berbagai potensi penyakit degeneratif karena perubahan polahidup masyarakat modern. Produksi ekstrak kaya polifenol dari Euphorbia supina masih belum banyak dikembangkan, sementara itu potensi pasar dan pengembangannya cukup besar. Penelitian ini bertujuan untuk menentukan tipe pelarut dan tipe proses ekstraksi yang efektif dan selektif dalam memproduksi ekstrak kaya polifenol dari E. supina. Lima jenis pelarut (MeOH, EtOH, 70% MeOH, 30% MeOH, dan H2O) serta dua metode ekstraksi (ultrasonikasi dan refluks) diuji dalam penelitian ini.Metode ekstraksi refluks dengan pelarut EtOH mampu memberikan kinerja ekstraksi yang lebih baik ditinjau dari aspek efektifitas, efisiensi, selektifitas, serta aspek toksisitas dan lingkungan. Metode refluksmenunjukkan efektifitas dua kali lebih baik dibanding ultrasonikasi. Â Kata kunci: Euphorbia supina, efektivitas, selektifitas, ekstraksi, polifenol

Evaluasi Sifat Kimia dan Sensoris Nata De Coco dengan Penambahan Ekstrak Buah Naga (Hylocereus polyrhizus) Meldayanoor Meldayanoor; Mariatul Kiptiah; Yuliana Ningsih; Titis Linangsari; Ema Lestari; Jesi Yardani; Almira Ulimaz; Muhammad Indra Darmawan; Mufrida Zein; Marlia Adriana; Agung Nugroho; Luthfina Ariyani
Jurnal Teknologi Agro-Industri Vol. 10 No. 02 (2023): Jurnal Teknologi Agro-Industri
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat, Politeknik Negeri Tanah Laut

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34128/jtai.v10i02.185

Nata de coco is a product resulting from a fermentation process from coconut water with the help of Acetobacter xylinum. To increase the functional value and taste of nata de coco, you can add red dragon fruit extract. This study aims to evaluate the chemical and sensory properties of nata de coco which did not have dragon fruit extract added (P0) and nata de coco which had dragon fruit extract added (P1). Parameters for observing chemical properties include water content, protein, vitamin C and fiber. Sensory evaluation was carried out using a hedonic test using 30 panelists, the parameters observed were aroma, texture, taste and color. Based on the results of the evaluation of the chemical and sensory properties of nata de coco to which dragon fruit extract was added, it can be concluded that the addition of dragon fruit extract can increase protein levels (1.57%) and vitamin C (0.25%), and reduce water content (93.16%) and fiber content (1.20%). Meanwhile, the hedonic test showed that the panelists preferred the texture, aroma and taste parameters of nata de coco without adding dragon fruit extract. In terms of color parameters, panelists preferred nata de coco with added dragon fruit extract.

Selective Conversion of 2-Methylfuran to 1,4-Pentanediol Catalyzed by Bimetallic Ni-Sn Alloy Rodiansono Rodiansono; Astuti Maria Dewi; Sadang Husain; Agung Nugroho; Sutomo Sutomo
Bulletin of Chemical Reaction Engineering & Catalysis 2019: BCREC Volume 14 Issue 3 Year 2019 (December 2019)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.14.3.4347.529-541

The selective conversion of 2-methylfuran (2-MeF) to 1,4-pentanediol (1,4-PeD) over bimetallic nickel-tin alloy catalysts in the ethanol/H2O solvent mixture was studied. By using bulk Ni-Sn(x); x = 3.0 and 1.5 catalysts, a maximum yield of 1,4-PeD (49%) was obtained at 94% conversion of 2-MeF. The dispersion of Ni-Sn(x) on the aluminium hydroxide (AlOH) or g-Al2O3 supports allowed to an outstanding yield of 1,4-PeD (up to 64%) at 433 K, 3.0 MPa of H2 within 12 h. Ni-Sn(3.0)/AlOH catalyst was found to be reusable and the treatment of the recovered Ni-Sn(3.0)/AlOH catalyst with H2 at 673 K for 1 h restored the catalyst’s original activity and selectivity.

Improving Mechanical Properties of Biofoam Using Oil Palm Fiber as Filler at Various Temperatures and Processing Times Feri Rahmadani; Isna Syauqiah; Agung Nugroho
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol 14, No 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.130-136

Biofoam, as an alternative packaging material based on tapioca starch, has become a choice for environmentally friendly packaging. However, biofoam has a drawback in terms of weak mechanical properties. The use of oil palm fiber, a by-product of CPO production, has gained interest as a material that can improve the mechanical properties of biofoam. This study aims to produce biofoam with the best mechanical characteristics as packaging material through variations in temperature and processing time. The production of biofoam was carried out using the thermopressing method on tray-shaped molds with variations in molding temperature of 180°C, 190°C, and 200°C for 180 seconds and 210 seconds. The dough formulation consisted of 80% starch, 20% fiber, with the addition of 25 grams of water. Mechanical property testing was conducted through tests for moisture content, water adsorption, biodegradability, compressive strength, and tensile strength. The variation of 190°C temperature and 210 seconds baking time resulted in biofoam with the best mechanical properties. This biofoam showed the highest compressive strength value of 26.94 kPa, tensile strength test of 83.11 kPa, the second-highest biodegradability with a percentage of 78.93%, and the second-lowest moisture content with a value of 7.56%. These results indicate that biofoam at a molding temperature of 190°C and a baking time of 210 seconds has the best mechanical properties, making it superior as an environmentally friendly alternative packaging material compared to other formulations. Keywords: Biofoam, Oil palm fiber, Temperature, Thermopressing.

Making An Aquascape Using Ornaments From Plastic Waste For Proklim Cadres RW 02 Sungai Miai Village, North Banjarmasin : Pembuatan Akuaskap Menggunakan Ornamen Dari Sampah Plastik Untuk Kader Proklim RW 02 Kelurahan Sungai Miai Banjarmasin Utara Noor Arida Fauzana; Pahmi Ansyari; Slamat; Agung Nugroho
JATI EMAS (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat) Vol. 9 No. 2 (2025): Jati Emas (Jurnal Aplikasi Teknik dan Pengabdian Masyarakat)
Publisher : DPD Jatim Perkumpulan Dosen Indonesia Semesta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Aquascape is the art of designing underwater gardens. The main elements of aquascape is the presence of plants, stones, wood and ornamental fish as ornaments in containers such as aquariums. Usually, aquascape use ornaments from nature as an aesthetic ecosystem in the aquarium, but their existence requires a relatively expensive cost. The purpose is to provide education and training in making aquascape using ornaments from plastic waste either from drink bottles, refillable packaging or plastic bags to the community and Proklim (Program Kampung Iklim) RW02 cadres of Sungai Miai Village, North Banjarmasin. The activity methods was delivered by of counseling, demonstration, training and mentoring. The results showed that there was an increase in the knowledge of the partner group from a score of 1.49 to 18.1 or an increase of 1170% and an increase the skills from a score of 7 to 16.64 or an increase of 137.76%. The supporting factor is that the partner group already has the skills to process plastic waste into various decorations, so that it can be used as an aquascape ornaments. The inhibiting factor is that the PDAM water used for the aquascape must be precipitated.

Improving Mechanical Properties of Biofoam Using Oil Palm Fiber as Filler at Various Temperatures and Processing Times Feri Rahmadani; Isna Syauqiah; Agung Nugroho
Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Vol. 14 No. 1 (2025): February 2025
Publisher : The University of Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtep-l.v14i1.130-136

Biofoam, as an alternative packaging material based on tapioca starch, has become a choice for environmentally friendly packaging. However, biofoam has a drawback in terms of weak mechanical properties. The use of oil palm fiber, a by-product of CPO production, has gained interest as a material that can improve the mechanical properties of biofoam. This study aims to produce biofoam with the best mechanical characteristics as packaging material through variations in temperature and processing time. The production of biofoam was carried out using the thermopressing method on tray-shaped molds with variations in molding temperature of 180°C, 190°C, and 200°C for 180 seconds and 210 seconds. The dough formulation consisted of 80% starch, 20% fiber, with the addition of 25 grams of water. Mechanical property testing was conducted through tests for moisture content, water adsorption, biodegradability, compressive strength, and tensile strength. The variation of 190°C temperature and 210 seconds baking time resulted in biofoam with the best mechanical properties. This biofoam showed the highest compressive strength value of 26.94 kPa, tensile strength test of 83.11 kPa, the second-highest biodegradability with a percentage of 78.93%, and the second-lowest moisture content with a value of 7.56%. These results indicate that biofoam at a molding temperature of 190°C and a baking time of 210 seconds has the best mechanical properties, making it superior as an environmentally friendly alternative packaging material compared to other formulations. Keywords: Biofoam, Oil palm fiber, Temperature, Thermopressing.

Skrining Fitokimia dan Uji Kualitatif Aktivitas Antioksidan Tumbuhan Asal Daerah Rantau Kabupaten Tapin Kalimantan Selatan Sutomo Sutomo; Arnida Arnida; Muhammad Ikhwan Rizki; Liling Triyasmono; Agung Nugroho; Evi Mintowati; Salamiah Salamiah
Journal of Pharmascience Vol. 3 No. 1 (2016): Jurnal Pharmascience
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/jps.v3i1.5836

ABSTRAK Â Kalimantan selatan merupakan salah satu kawasan tropis dengan sumber keanekaragaman hayati yang melimpah. Penelitian ini bertujuan untuk melakukan ekstraksi dan skrining fitokimia terhadap beberapa tumbuhan yang secara etnis digunakan sebagai pengobatan. Metode ini sangat penting untuk mendapatkan gambaran terhadap golongan senyawa yang terkandung dalam tumbuhan obat. Tumbuhan yang ditelitiÂ adalah rimpang patiti, kulit batang ambaratan, batang carikang habang, daun puspa, kulit batang balik anngin, daun bilaran tapah, dan daun karamunting. Hasil ekstraksi menggunakan etanol 70% rendemen terbanyak adalah daun puspa (30,76%) diikuti secara berturut-turut kulit batang balik angin (27,05%), daun bilaran tapah (23,53%), daun karamunting (10,88%), rimpang patiti (8,48%), batang carikang habang (3,56%), dan kulit batang ambaratan (2,04%). Skrining fitokimia menunjukkan bahwa rimpang patiti mengandung senyawa golongan flavonoid, fenol, tanin, saponin, dan terpenoid. Kulit batang ambaratan mengandung senyawa golongan alkaloid, flavonoid, fenol, tanin dan antrakinon. Batang carikang habang mengandung senyawa golongan alkaloid, flavonoid, fenol, tanin, saponin, steroid, dan antrakuion. Daun puspa mengandung senyawa golongan alkaloid, flavonoid, fenol, saponin, dan terpenoid. Kulit batang balik anngin mengandung senyawa golongan alkaloid, flavonoid, fenol, tanin, terpenoid, dan antrakuinon. Daun bilaran tapah mengandung senyawa golongan alkaloid, flavonois, fenol, tanin, saponin, terpenoid, dan antrakuinon. Daun karamunting mengandung senyawa golongan alkaloid, flavonois, fenol, tanin, saponin, dan terpenoid. Hasil uji aktivitas antioksidan dengan menggunakan metode DPPH melalui kromatpgrafi lapis tipis menunjukkan bahwa ketujuh tumbuhan yang diuji mengandung senyawa yang bersifat antioksidan. Â Kata kunci : eksplorasi, ekstraksi, skrining fitokimia, antioksidan.Â Â Â Â ABSTRACTÂ Kalimantan Selatan is a province in the southern of Borneo island. As one of the tropical areas, this provinceÂ has a high biological diversity. The recent study aims to identify the secondary metabollites through screening test and evaluate the antioxidative capacities of several medicinal plants growing in Tapin regency. Seven plants used in this study were: the rhizome of Patiti (RP), the bark of Ambaratan (BA), the stem of Carikang Habang (SC), leaves of Puspa (LP), the bark of Balik Angin (BB), leaves of Bilaran Tapah (LB), and leaves of Karamunting (LK). Arranged from the highest to the lowest, the yield of 70% ethanol extracts were 30.76% (LP), 27.05% (BB), 23.53% (LB), 10.88% (LK), 8.48% (RP), 3.56% (BC), and 2.04% (BA). The phytochemical screening test shown that flavonoid, phenolic, tanin, saponin,Â and terpenoid were detected in RP. In BA, alkaloid, flavonoid, phenolic, tanin, and antraquinon were identified. SC possessed alkaloid, flavonoid, phenolic, tanin, saponin, steroid, and antraquinon. LP had alkaloid, flavonoid, phenolic, saponin, and terpenoid. BB contained alkaloid, flavonoid, phenolic, tanin, terpenoid, and antraquinon. LB shown the presence ofÂ alkaloid, flavonoid, phenolic, tanin, saponin, terpenoid, and antraquinon. Meanwhile, LK indicated the presence of alkaloid, flavonoid, phenolic, tanin, saponin, and terpenoid. Antioxidant analyis of the seven extracts using DPPH showed that all the tested plants possessed the active compounds with antioxidative effects.Â Keywords: exploration, extraction, phytochemical screening, antioxidant.

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