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Rachma Wikandari
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agriTECH
Published by Universitas Gadjah Mada
ISSN : 02160455     EISSN : 25273825     DOI : 10.22146/agritech
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Agritech with registered number ISSN 0216-0455 (print) and ISSN 2527-3825 (online) is a scientific journal that publishes the results of research in the field of food and agricultural product technology, agricultural and bio-system engineering, and agroindustrial technology. This journal is published by Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta in colaboration with Indonesian Association of Food Technologies (PATPI).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 1,380 Documents
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Fingerprint Metabolite of Miana (Coleus sp.) Leaf Infusion and Juice: Authentication Based on FTIR Spectroscopy and Multivariate Analysis Syahruni, Reny; Umar, Abd. Halim; Matasik, Lois Christfani
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.88706

Abstract

Miana (Coleus sp.) is a plant belonging to the Lamiaceae family and has been widely used in traditional medicine. Despite the potential of the plant, the quality and quantity of chemical components that can be extracted are dependent on various factors, such as varieties and extraction techniques. Therefore, this study aimed to discriminate miana based on varieties and extraction techniques as well as identify its marker functional groups. The 4 different leaf varieties of the plant, including purple, green, batik, and color combination were extracted using the infusion method, both with and without the addition of water. FTIR (Fourier transform infrared) fingerprint metabolite of each extract was then analyzed with IRPal 2.0 software for functional group interpretation and multivariate data analysis (PCA and PLS-DA) using MetaboAnalyst 5.0. The results showed that the chromatogram profile of all varieties and extraction techniques had similar patterns. The PCA (principal component analysis) score plot yielded a total PC value of 98.5%, which could effectively discriminate the samples. In addition, the O–H group’s VIP score value (greater than 1) was a significant functional group that characterized the samples. Based on these results, the combination of FTIR spectroscopy and multivariate analysis could be used to discriminate miana based on varieties and extraction techniques, as well as identify functional groups serving as marker.
Exploration of Polysaccharides and Oligosaccharides from Jali (Coix Lacryma-jobi) and Its Potential as Prebiotic Arianty, Devi; Sutrisno, Aji; Krisna Wardani, Agustin
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.89351

Abstract

Jali (Coix lacryma-jobi) is a cereal plant widely used as a functional food because it contains carbohydrate compounds, such as polysaccharides and oligosaccharides with a positive impact on the digestive system. This study was divided into two stages, namely extraction Jali and prebiotic analysis. The extraction method used was hot water extraction and alkali extraction according to their solubility in solvents. The prebiotic activity of oligosaccharide and polysaccharide extracts from jali was evaluated using in-vitro analysis. Therefore, this study aimed to explore polysaccharides and oligosaccharides in jali and their potential to act as prebiotic. The results showed that the extraction process affected the types of oligosaccharides, namely Fructooligosaccharides (FOS), as well as polysaccharides, including α-glucan and arabinoxylan. In this study, FOS and α-glucan were obtained by heating at 80 °C for 60 minutes, while arabinoxylan was extracted by heating at 80 °C for 120 minutes. The results of crude extracts of FOS and arabinoxylan were tested for HPLC analysis, while α-glucan was explored using FTIR. The jali seeds exhibited a remarkable FOS content of 40.78%, while their arabinoxylan composition included 22.4% arabinose and 4.8% xylose. In addition, the FTIR analysis revealed the presence of (14) (16) -α-D-glucan bond in jali seeds. The results showed that the extraction from the polysaccharide group, namely α-Glucan and Arabinoxylan, as well as from the oligosaccharides (FOS) had potential as prebiotic for the growth of Bifidobacterium longum and Lactobacillus casei. However, the highest results were based on OD and SCFA from the FOS extract. The addition of FOS affected the growth of Bifidobacterium longum more significantly (OD 0,871) compared to Lactobacillus casei (OD 0,725). Bifidobacterium longum exhibited SCFA levels of 243,827 mmol/L, while Lactobacillus casei showed levels of 140,942 mmol/L.
Enhancement in Bioaccessibility and Bioavailability of Phenolic Compounds during Black Glutinous Rice Tape Fermentation Azkia, Mita Nurul; Setyaningsih, Widiastuti; Mayangsari, Yunika; Cahyanto, Muhammad Nur
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.92729

Abstract

Black glutinous rice (Oryza sativa var. glutinosa) tape fermented with various yeast, mold, and bacteria is often rich in phenolics compounds and can contribute positively to health through its antioxidants activity. Despite the potential, these compounds have limited bioavailability value due to their structure, degree of glycosylation or polymerization, and interactions with other components. Therefore, this study aims to determine the effect of fermentation on bioavailability and bioaccessibility of phenolics compounds in black glutinous rice tape. During the procedures, cooked black glutinous rice was inoculated with ragi tape for 72 hours. Sampling was then performed every 24 hours to analyze bioaccessibility of phenolics compounds, flavonoids, and antioxidants activity. Subsequently, absorption was carried out using an everted gut sac model. The results showed that phenolics compounds were released from the food matrix during gastric and small intestine digestion. Fermentation was shown to increase the content of accessible phenolics compounds from 19.89% to 27.31%, flavonoids from 68.88% to 81.72%, and antioxidants activity from 13.56% to 22.89%. During fermentation, the highest increments were obtained after 72 hours, with 27.31% for total phenolics compounds, 81.72% for flavonoid compounds, and 22.89% for antioxidants activity. The products obtained after 72 hours of fermentation exhibited significantly highest absorption, but no significant differences were observed between the duodenum and ileum segments. The absorption of these compounds in the jejunum from the extract was significantly higher in fermented samples. Therefore, fermentation significantly enhanced bioavailability of phenolics compounds in black glutinous rice tape.
Cover Vol. 44 No. 4 Vol. 44 No. 4, Cover
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.101757

Abstract

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Reviewer Volume 44 Tahun 2024 Tahun 2024, Reviewer Volume 44
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.103857

Abstract

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Indeks Penulis Volume 44 Tahun 2024 Tahun 2024, Indeks Penulis Volume 44
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.103863

Abstract

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Indeks Subjek Volume 44 Tahun 2024 Tahun 2024, Indeks Subjek Volume 44
agriTECH Vol 44, No 4 (2024)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.103864

Abstract

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Determination of Optimum Conditions for Biodiesel Synthesis from Bulk Palm Oil Using Red Mud-CaO Catalyst Nurdianty, Sri; Usman, Thamrin; Rahmalia, Winda
agriTECH Vol 45, No 1 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.79978

Abstract

The synthesis of biodiesel from bulk palm oil using methanol and a heterogeneous catalyst, red mud-CaO, has been carried out. This research aimed to investigate the effect of the ratio of red mud-CaO, percent catalyst, and reaction time on the conversion of methyl ester. Red mud and CaO catalysts were obtained from calcining red mud and clay bath CaCO3 (calcium carbonate) waste at 200°C and 900 o C for 5 and 4 hours, respectively. Biodiesel synthesis was carried out by adding bulk palm oil:methanol (1:10 v/v) and red mud-CaO heated for 1, 2, and 3 hours at 65 o C. In addition, the reaction was followed using thin-layer chromatography (TLC) and Gas Chromatography-Mass Spectrophotometry (GC-MS). Optimum reaction conditions were obtained at the ratio of red mud-CaO (1:1 w/w), catalyst 5%, and time of 2 hours indicated by the total formation of methyl ester on TLC plate. Meanwhile, red mudCaO (1:1 w/w) catalyst was characterized by x-ray diffraction (XRD) and x-ray fluorescence (XRF) to determine the crystal structure and element composition. The analysis was carried out using Fourier transform infra-red (FTIR) to determine the functional groups of catalyst. XRD characterization results showed that there were 4 highest peaks, namely 29.29° (CaCO3 ), 33.99° and 17.93° (Ca(OH)2 ), and 11.59° (aluminum silicate mineral). The 4 highest elemental contents were Ca, Fe, Al, and Si. FTIR characterization showed the peak wavenumbers 3641.60 cm -1 (Ca(OH)2 ),1423.47 cm -1 (O-C-O bond of carbonate), 981.77 cm -1 and 986.69 cm -1 (Si-O), 875.68 cm -1 and 713.66 cm -1 (Ca-O), 366.48 cm -1 (Al-O), and 426.27 cm -1 (Fe-O). According to GC-MS analysis, the most formed methyl ester compositions were methyl oleate (47.35%) and methyl palmitate (40.13%).
Ethanolysis Pretreatment of Crude Palm Oil in High Shear Reactor Hidrotunnisa, Hidrotunnisa; Yanti, Rini; Hidayat, Chusnul
agriTECH Vol 45, No 1 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.81499

Abstract

Crude palm oil (CPO) is characterized by high carotenoid content, dissolving in the oil system and causing a difficult extraction process. To overcome this problem, transesterification of CPO with ethanol was performed to improve the carotenoid extractability using sodium hydroxide as a catalyst. Therefore, this study aimed to investigate the effect of ethanolysis parameters on the carotenoid and fatty acid ethyl ester (FAEE) content of CPO. FAEE content was quantified by thin-layer chromatography and total carotenoid content (TCC) was determined through a UV-Vis spectrophotometer. Reaction time (15-150 min), catalyst concentration (0.65-3.25%), reaction temperature (3070 ℃), and stirring speed (500-2000 rpm) were determined by one factor at a time (OFAT) design. The results showed that ethanolysis time and temperature did not affect TCC along the study range, while ethanolysis time of 45 minutes and temperature of 70 ℃ increased FAEE content. Additionally, catalyst concentration of 1.95% and stirring speed at 2000 rpm increased TCC and FAEE. The best ethanolysis parameters were obtained at 45 minutes, the temperature of 50 ℃, catalyst concentration of 1.3%, and stirring speed of 2000 rpm, yielding FAEE 1358±16 ppm and TCC 99.9±0.2%. This showed that ethanolysis produced high FAEE content and improved carotenoids in the oil system.
Antioxidant Activity and Quality of Frozen Yoghurt with Moringa oleifera Lamk. Leaves Extract Sari, Primaningrum Dian Indah; Swasti, Yuliana Reni; Purwijantiningsih, Ekawati
agriTECH Vol 45, No 1 (2025)
Publisher : Faculty of Agricultural Technology, Universitas Gadjah Mada, Yogyakarta, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/agritech.83392

Abstract

Moringa oleifera Lamk. (Moringa) is a plant widely distributed across various regions in Indonesia. The leaves of Moringa oleifera Lamk. contain higher nutritional value in protein and minerals compared to the green vegetables that are commonly consumed. This plant can be used to improve the quality of frozen yoghurt, a functional food that is currently popular due to the existence of Lactic Acid Bacteria (LAB), which is good for digestion. Therefore, this research aimed to improve the nutritional quality of frozen yoghurt using Moringa oleifera Lamk. Leaves Extract (MOLE), which is high in antioxidants and protein. However, MOLE does not reduce the viability of LAB. The viability of LAB decreases when phytochemical content with the ability as an antibacterial is added. The soluble fiber content of MOLE is able to improve the texture of frozen yoghurt. In this research, four different frozen yoghurt samples were produced with the addition of MOLE in various ratios (0%, 10%, 20%, and 30%). The analysis shows that frozen yoghurt with 30% MOLE produces the highest antioxidant activity and viability of probiotics. The content of product with 30% MOLE includes 2.85±0.13% fat, 10.07±0.44% protein, 1.10±0.01% ash, 26.4±0.35% total solid (TS), 21.67±0.58% total soluble solid (TSS), 78.66±1.31% overrun, 807±5.77 (s) melting rate, 0.86±0.02% titratable acidity, and 5.4±0.02 pH. It also contains 8.58±0.52 log CFU/mL LAB, Salmonella negative/25 g, 102.26±0.13 mg GAE/100 mL of total phenolic, and 87.78±0.64% of antioxidant activity.

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