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All Journal Jurnal Teknologi Pertanian Jurnal Sains dan Teknologi Pangan Indonesian Food Science and TechnologyJournal Biosaintifika: Journal of Biology & Biology Education Jurnal Teknologi & Industri Hasil Pertanian Indonesian Journal of Food Technology
Aisyah Tri Septiana
Jurusan Teknologi Pertanian, Fakultas Pertanian, UNSOED Purwokerto
Agriculture, Biological Sciences & Forestry Computer Science & IT Industrial & Manufacturing Engineering

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Antioxidan activity of Sargassum duplicatum seaweed extract Septiana, Aisyah Tri; Asnani, Ari
Jurnal Teknologi Pertanian Vol 14, No 2 (2013)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.4 KB)

Abstract

Sargassum duplicatum contains bioactive compounds that potential as antioxidants. The aims of the research were to study the antioxidant activity of S. duplicatum’s extract obtained from solvent extraction by one-step extraction and multi-step extraction methods. Solvents used were hexanes, ethyl acetate, methanol, ethanol, and water. Antioxidant activity of extract was measured by analyzing the peroxide value, malonaldehide (MDA) from linoleic acid dan 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenger capacity. The result showed that the extract of S. duplicatum could inhibit linoleic acid oxidation and scavenge free radical. Antioxidant activity on linoleic acid of methanol extract from one-step extraction method was the highest, whereas antioxidant activity of ethanol and ethyl acetate extracts was not significantly different. Methanol extract from one step extraction could inhibit peroxide formation by 86.4%, and MDA formation by 77.5%. As reference, α tocopherol inhibited peroxide formation by 89.1% and MDA formation by 60.6%. The DPPH radical scavenger capacity of all extracts of S. duplicatum was lower than α tocopherol.  Activity of antioxidant of those extracts was closely related to their total phenolic content.Key words: Extraction, antioxidant, Sargassum duplicatum
Jatropha Oil Utilization as Basic Material of Grease Lubricant Yanto, Tri; Septiana, Aisyah Tri
Jurnal Teknologi Pertanian Vol 13, No 1 (2012)
Publisher : Fakultas Teknologi Pertanian Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (331.398 KB)

Abstract

Grease is a kind of lubricant having form of semi solid to solid. It is made of three basic components: base oil, thickening agents and additives. Jatropha oil has a potential roles as a grease lubricant base oil. This research aimed to study the differences of basic material compositions towards the grease qualities, to study the thickening agent which had the most suitable for grease production and to determine the best treatment combination of grease formulation using jatropha oil. The research used an experimental method. The tested factors were types of oil consists and thickening agent consists. Physicochemical variables observed were: dropping point, pH, texture and corrosion resistance. The result of the research showed that the differences of basic material compositions gave the influence to the grease dropping point characteristics. The addition of castor oil 15% could decrease the grease dropping point (from 101.33 oC to 99.08 oC) while the addition of mineral oil lubricant 15% could increase the grease dropping point (101.33 oC to 112.58 oC). The thickening agent which had the most suitable for grease production using jatropha oil was LiOH 3.5% + Al(OH)3 0.5% produced 128.83 oC of dropping point. The best formulation based on zero-one test method obtained at treatment of M3P6, i.e. the grease which has basic materials composition of jatropha oil + mineral oil lubricant 15% and thickening agent of LiOH 0.5% + Al(OH)3 0.5%. That formulation had the characteristic 138 oC of dropping point, pH 7.5, 4.63 mm/dt of texture (NLGI grade of 3) and corrosion resistance included in group 1b (dark orange). Keywords: grease, jatropha oil, castor oil
Antioxidant Potential of Ethanol and Ethyl Acetat Extract of Ganoderma sp. Mycelium Ratnaningtyas, Nuniek Ina; Purnomowati, Purnomowati; Purwati, Endang Sri; Septiana, Aisyah Tri; Ekowati, Nuraeni; Supriyadi, Adi
Biosaintifika: Journal of Biology & Biology Education Vol 10, No 1 (2018): April 2018
Publisher : Department of Biology, Faculty of Mathematics and Sciences, Semarang State University . Ro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/biosaintifika.v10i1.11512

Abstract

Ganoderma sp. Banyumas 1 isolate that reffered as Ganoderma sp. is a new discovered isolate from Banyumas, Central Java, Indonesia expected to have a potential properties of antioxidant of medicinal mushroom. This study aimed to determine the antioxidant potential and the appropriate solvent for it’s extracting from Ganoderma sp. This research result showed that ethyl acetate was able to extract as many as 15.57%, while etanol was only able to extract 3.87% active compounds from dried 28 days old Ganoderma sp. mycelium cultivated in the Mushroom Complete Medium (MCM). Extract of ethyl acetate (non-polar) extraction of mycelium of Ganoderma sp. had a potential character as an antioxidant source and performed a better result than from ethanolic (polar) extraction as shown in the IC50 value. Extract from ethyl acetate extraction had an average IC50 value smaller than  from ethanolic extract (581.80 < 1285.67). Extract from ethyl acetate extraction resulted in a higher amount of phenol than that ethanolic extract 29.23 < 57.67. Inhibition percentage of both extracts at 65% was known to occur at concentration of 1000 ppm for ethyl acetate extract and 2000 ppm for ethanolic extract. An important finding was that ethyl acetate can be used as appropriate solvent for extracting antioxidant compound better than ethanolic. In conclusion, the mycelium extract of Ganoderma sp. extracted with ethyl acetate and ethanol as solvent is potential to be used as a source of natural antioxidants. This research result has benefit in developing potency of local resources as herbal resources.
PENGARUH RASIO BAHAN PENYALUT MALTODEKSTRIN DAN GUM ARAB TERHADAP MIKROKAPSUL KELOPAK BUNGA ROSELA (Hibiscuss sabdariffa L) Purwanti, Yunika; Dwiyanti, Hidayah; Septiana, Aisyah Tri; Purbowati, Ike Sitoresmi Mulyo
Jurnal Sains dan Teknologi Pangan Vol 6, No 5 (2021): Jurnal Sains dan Teknologi Pangan
Publisher : JURUSAN ILMU DAN TEKNOLOGI PANGAN, UNIVERSITAS HALU OLEO

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (453.387 KB) | DOI: 10.33772/jstp.v6i5.21378

Abstract

ABSTRACTRoselle flower (Hibiscus sabdariffa L.) petal extract contains bioactive compounds, namely phenol, anthocyanin, vitamin C, and antioxidants. Bioactive compounds can function as antibacterial, anticancer, anti-inflammatory, and antioxidant. The liquid form of this extraction has disadvantages, namely difficult handling and distribution, lack of flexibility, and short shelf life. An alternative method to overcome these is microcapsule technology. The microencapsulation process uses maltodextrin and gum arabic coating materials. The research objective was to produce roselle microcapsules with good chemical characteristics. The experimental design used in this study was a completely randomized design (CRD) with one factor, namely variations in the ratio of maltodextrin coating material:gum arabic (1:9, 3:7, 5:5, 7:3, and 9:1). The chemical characteristics of Roselle microcapsules observed included vitamin C, total phenol, anthocyanins, and antioxidant activity. The results show that the best treatment was the sample with a 1:9 ratio of maltodextrin coating: gum arabic which has 51.92 mg/100g vitamin C, 10.27 mg/100g total phenol, 13.03 mg/ anthocyanin L, and 8.94% in 500 ppm antioxidant activity.Keywords: Roselle, microencapsulation, gum arabic, maltodextrinABSTRAKEkstrak kelopak bunga rosela (Hibiscus sabdariffa L.) mengandung senyawa bioaktif yaitu fenol, antosianin, vitamin C dan aktivitas antioksidan. Senyawa bioaktif dapat berfungsi sebagai antibakteri, antikanker, antiinflamasi dan antioksidan. Bentuk cair hasil ekstraksi ini memiliki kekurangan yaitu penanganan bahan dan distribusi yang sulit, kurang fleksibel, dan masa simpan yang singkat. Alternatif metode untuk mengatasi hal tersebut adalah teknologi mikrokapsul. Proses mikroenkapsulasi menggunakan bahan penyalut maltodekstrin dan gum arab. Tujuan penelitian untuk menghasilkan mikrokapsul rosela dengan karakteristik kimia yang baik. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan satu faktor yaitu variasi rasio bahan penyalut maltodekstrin : gum arab (1:9; 3:7; 5:5; 7:3; dan 9:1). Karakteristik kimia mikrokapsul rosela yang diamati meliputi vitamin C, total fenol, antosianin dan aktivitas antioksidan. Hasil penelitian menunjukkan perlakuan terbaik yaitu rasio bahan penyalut maltodektrin:gum arab (1:9) menghasilkan nilai vitamin C 51.92 mg/100g, total fenol 10.27 mg/100g, antosianin 13.03 mg/L, dan aktivitas antioksidan 8.94% dalam 500 ppm..Kata kunci: Rosela, mikrokapsul, gum arab, maltodekstrin
Modification of the physical and chemical properties of Inpago-Protani rice flour via fermentation with Bimo-CF starter Aini, Nur; Arsyistawa, Hadana Sabila; Sustriawan, Budi; Prihananto, Vincentius; Astuti, Santi Dwi; Septiana, Aisyah Tri; Indarto, Indarto; Suliman, Nageeb Mohammed
Indonesian Food Science and Technology Journal Vol. 7 No. 2 (2024): Volume 7. Number 2, July 2024 |IFSTJ|
Publisher : Department of Technology of Agricultural product (THP) Jambi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22437/ifstj.v7i2.31467

Abstract

Inpago-Protani rice is a new rice variety from Jenderal Soedirman University, Indonesia. Producing rice flour as an intermediate product is a practical rice processing method. However, the utilization of rice flour as a wheat flour alternative is limited due to the differences in their gelatinization qualities. Fermentation with Lactobacillus sp. changes the gelatinization properties of rice flour by increasing the number of microorganisms and stimulating their metabolism in food materials. This study sought to determine how the physical and chemical qualities of Inpago-Protani rice flour are affected by the duration of fermentation, the concentration of Bimo-CF starter, and other factors. Applying 0.6% Bimo-CF starter for 12 hours at 30°C was the most effective method for fermenting Inpago-Protani rice flour. The resulting rice flour had a yield of 40.3%, a protein content of 10.3% (db), a carbohydrate content of 77.1%, a fat content of 0.4%, an ash content of 0.5%, a moisture content of 12.2%, and 338.7 kcal of energy. The enhanced characteristics of fermented rice flour may increase its versatility for subsequent processing.
The Effect of the pH of Aquades Solvent on the Physicochemical Characteristics of Parijoto (Medinilla Speciosa) Extract Effendi, Nazmirafa; Septiana, Aisyah Tri; Handayani, Isti
Indonesian Journal of Food Technology Vol 3 No 1 (2024): Indonesian Journal of Food Technology
Publisher : Program Studi Teknologi Pangan Fakultas Pertanian UNSOED

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.ijft.2024.3.1.11636

Abstract

Parijoto is an endemic Indonesian plant that is believed to have many health benefits. Parijoto fruit extraction is an effort to obtain extracts so that they are more applicable in the food sector. This research aims to examine the effect of the pH of the distilled water solvent on the characteristics of parijoto extract. Extraction was carried out using the Microwave-Assisted Extraction (MAE) method. Aquades was chosen as a solvent because it is safe, easy to obtain, and cheap. pH adjustment was carried out using citric acid and Ca(OH)2 to produce pH 2,4,6,9 and 11. As a control, distilled water was not adjusted for pH. The research was conducted experimentally using a Randomized Block Design. Repetition was carried out 5 times. The resulting extract was observed for levels of anthocyanins, vitamin C, total titratable acids, pH, and total dissolved solids. Based on the results, the highest levels of anthocyanins (31.64 mg/L), total titratable acids (10.36%), and total dissolved solids (3.63 oBrix), were produced using distilled water pH 2, but vitamin C (26.64 mg/100 g), and the pH of the extract (1.92) was the lowest. The highest levels of vitamin C (77.40 mg/100 g) were produced in distilled water without pH adjustment (pH 6.0).
Karakteristik warna annatto yang dihasilkan melalui metode gabungan maserasi dan microwave assisted extraction menggunakan aquades sebagai pelarut Handayani, Isti; Septiana, Aisyah Tri; Sustriawan, Budi; Sitorus, Ester Mastiur; Effendi, Nazmirafa; Geisha, Rahmania; Salsabila, Muna Verentsya
Jurnal Teknologi & Industri Hasil Pertanian Vol 30, No 1 (2025): Jurnal Teknologi & Industri Hasil Pertanian
Publisher : Teknologi Hasil Pertanian Fakultas Pertanian Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jtihp.v30i1.78-87

Abstract

Annatto is a natural pigment that is a common ingredient in the food industry. Conventionally, extraction is performed using oil or organic solvents. This study aims to analyze the color characteristics of annatto produced using a combined maceration method and microwave-assisted extraction (MAE) using aquadest as a solvent. The pH of the aquadest was adjusted using citric acid and Ca(OH)2 to produce pH 4, 7, and 9.  The control used only maceration with distilled water without pH adjustment. Annatto extraction began with maceration using a magnetic stirrer at a temperature of 80oC for 5 minutes. Further, the MAE method used 100 W of power for 2, 4, and 6 minutes. Bixin and norbixin were analyzed to determine the pigment. Color was measured using a colorimeter to assess L (brightness), a (redness), and b (yellowness), and the maximum wavelength was determined. The results showed that extraction using the maceration or a combination of maceration and MAE produced 1.5% pigment. Higher brightness was made by the combined method using pH 4 aquadest for 2 minutes. A higher intensity of red color was created by the combined method with pH 9 aquadest for 4 minutes, while there was no difference in the intensity of yellow color between maceration and the combined method. Aquadest as a solvent is effective for annatto extraction by maceration and a combination of maceration and MAE. The annatto extract has a maximum wavelength of 300 nm.
Co-Authors Ari Asnani Arsyistawa, Hadana Sabila Budi Sustriawan Effendi, Nazmirafa Endang Sri Purwati Geisha, Rahmania Hidayah Dwiyanti Ike Sitoresmi mulyo Purbowati Indarto Indarto Isti Handayani Nuniek Ina Ratnaningtyas Nur Aini Nuraeni Ekowati, Nuraeni Prihananto, Vincentius Purnomowati Purnomowati, Purnomowati Salsabila, Muna Verentsya Santi Dwi Astuti Sitorus, Ester Mastiur Suliman, Nageeb Mohammed Supriyadi, Adi Tri Yanto Yunika Purwanti