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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
 134   135   136   137   138 
Kinetics of Porang (Amorphophallus oncophyllus) Chips during Storage at Various Temperatures Munawwaroh, Fajriyah Dian; Rahayoe, Sri; Bintoro, Nursigit
agriTECH Vol 45, No 3 (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.90014

Abstract

Porang chips are dried food products that easily absorb moisture from storage environment. This highlights the need for storing porang chips under appropriate environmental conditions to maintain quality by controlling temperatures and humidity of storage area. Therefore, this study aimed to assess quality characteristics of porang chips by analyzing the rate of change using the kinetics model and determining storage period at various temperatures. Porang chips were stored at a relative humidity (RH) of approximately 70% and temperatures of 15 ℃, 20 ℃, 25℃, and 30 ℃ for 90 days. The parameters measured were moisture content, hardness, density, color, glucomannan, and ash content. The rate of quality change in hardness and density of chips was analyzed using the kinetics model that was validated through the Arrhenius equation. After the validation test confirmed its accuracy, storage period was determined based on the hardness parameter. The measurement of porang chips parameters was analyzed using ANOVA with Duncan’s post hoc test to assess the effect of storage temperatures. The results showed that storage temperatures affected hardness and density parameters but did not affect the color, glucomannan, and ash content. The kinetics analysis of changes in hardness and density of porang chips followed a zero-order reaction, showing that higher storage temperatures produced larger rate constant values. Validation using the Arrhenius equation yielded the following equations for density Y = -5154.5 + 9.1773 and hardness Y = -2152.4 + 2.3371. The determination of shelf life for porang chips based on the hardness parameter resulted in values of 386, 345, 312, and 271 days at storage temperatures of 15 ℃, 20 ℃, 25 ℃, and 30 ℃, respectively.
Characterization of High Protein and Instant Cereal Fiber Drink Enriched with Probiotic Milk Powder Tanuwijaya, Shania Angeline; Fibri, Dwi Larasatie Nur; Rahayu, Endang Sutriswati; Yanti, Rini; Saputra, Wahyu Dwi
agriTECH Vol 45, No 3 (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.90659

Abstract

An alternate healthy snack for school-age children can be prepared by adding sorghum and tempeh flour, which are sources of protein and fiber, to instant cereal drinks. Probiotic-enriched snacks are well-known, and several clinical studies have shown significant benefits to humans. Therefore, this study aimed to assess the effects of various ratios of sorghum and tempeh flour (5:1, 2:1, and 1:1) on physicochemical and sensory characteristics of the flakes. The viability of Lactiplantibacillus plantarum subsp. plantarum Dad-13 in an instant cereal beverage was examined for 56 days at three distinct storage temperature, i.e 20, 30, and 37 °C. The 2:1 sorghum: tempeh flour ratio formulation was the most widely accepted. According to chemical analyses, all probiotic instant cereal drink formulations have the potential to be sources of fiber (6.4–10.6 g/100 g) and proteins (14.5–16.3 g/100 g). Furthermore, the probiotic instant cereal drink contains more fiber and protein than a commercial product. This product has a minimum viable count of probiotic bacteria > 6.0 log CFU/g, which is substantial enough to have positive health effects on Indonesian school-age children.
Effect of Pressurized Blanching Time on Antioxidation Properties of Curcuma xanthorrhiza Roxb. Powder with Various Solvents Astuti, Devi Fitri; Pujimulyani, Dwiyati; Kanetro, Bayu; Crystalia, Audrey Amira; Windrayahya, Sulkhan
agriTECH Vol 45, No 3 (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.90728

Abstract

Javanese turmeric (JT) or Curcuma xanthorrhiza Roxb. is rhizome possessing bioactive components such as curcuminoids and xanthorrizhol that are soluble in various solvents. Therefore, this study aimed to evaluate the antioxidation properties of JT extract with various solvents for extraction. The method used was a Completely Randomized Design (CRD), with variations of pressure blanching time (0, 2.5, 5; 7.5, and 10 minutes) and solvents (80% methanol, 80% ethanol, and 80% acetone). Antioxidation properties were determined comprising antioxidant activity (DPPH (2,2-diphenyl-1-picrylhydrazyl) and FRAP (Ferric Reducing Antioxidant Power), phenol, flavonoid, β-carotene, curcumin, and tannin. The results showed that at a pressurized blanching time of 5 minutes, JT extract had the highest antioxidant activity. By using DPPH and FRAP methods with 57.31% RSA and 7.91 mg Ferro E/g, the highest antioxidant activity was also obtained in 80% ethanol solvent. Furthermore, phenol, flavonoid, β-carotene, tannin, and curcumin contents were 48.70 mg GAE/g, 7.28 mg QE/g, 243.83 μg/g, 2.44 ppm and 1.81%, respectively. This study showed that JT subjected to pressurized blanching had higher antioxidant activity than the fresh sample.
Physico-chemical and Sensory Characteristics of Beef Sausage with the Addition of Modified Porang Glucomannan (Amorphophallus muelleri Blume) Oleogel Widarta, I Wayan Rai; Rukmini, Ambar; Santoso, Umar; Supriyadi, Supriyadi; Raharjo, Sri
agriTECH Vol 45, No 3 (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.92513

Abstract

Fat is capable of affecting the physico-chemical and sensory characteristics of beef sausage. However, the use of beef fat can increase the cholesterol content, showing the need for suitable substitute such as oleogel. Therefore, this research aimed to evaluate the ability of rice bran oil oleogel prepared with modified porang glucomannan as a substitute for beef fat in sausage formulations. Analysis was also carried out to obtain beef sausage with the best characteristics (similar to commercial sausage/comparison formulation) which were made by substituting beef fat using rice bran oil oleogel. Sausage formulas were made with low-fat (10% oleogel or beef fat, w/w) and high-fat (20% oleogel or beef fat w/w), with beef fat serving as control. Another sausage formula with 20% (w/w) beef fat and tapioca was prepared representing the commercial beef sausage. The findings revealed that both the fat content and the replacement of beef fat with oleogel had a significant effect (p<0.05) on cooking loss and the proximate composition (moisture, ash, fat, and protein) of beef sausages. Significant effects were also observed on the texture (hardness, cohesiveness, springiness, gumminess, and chewiness) and sensory properties of the sausages. There is a significant effect on texture (hardness, cohesiveness, springiness, gumminess, and chewiness) as well as sensory characteristics of beef sausage. Substituting 20% of beef fat with oleogel resulted in the most favorable sensory characteristics, closely resembling those of the control formulation containing 20% beef fat combined with tapioca. In conclusion, rice bran oil oleogel formed from porang glucomannan as an oleogelator could be used as a substitute for beef fat in sausage processing.
The Quality Characteristics of Porang Flour Processed By Soaning, Flouring, Sifting, and Blowing Treatment Ritzada, I Putu Dharma Putra; Rahayoe, Sri; Amanah, Hanim Zuhrotul
agriTECH Vol 45, No 3 (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.92592

Abstract

Porang (Amorphophallus oncophyllus) is a raw material for glucomannan flour, which is widely used as a thickener in the food industry. However, the high oxalates in its flour can pose health risks when consumed in excess. Therefore, this study aimed to analyze the quality characteristics of porang flour processed through grinding with a hammer and disk mill, followed by polishing, sieving, and air blowing using a cyclone separator. The primary processing stages include the use of hammer and disk mills, a polishing machine, a Tyler sieving machine, as well as a cyclone separator equipped with a blower. The results showed that the quality of porang flour subjected to two polishing treatments produced a specific gravity of 0.559 g/cm 3 . Furthermore, the optimal processing method included hammer milling with a Sanindo  polished cycles. This led to the production of porang flour with the lowest calcium oxalate content (0.22%), high glucomannan concentration (31.56%), and high viscosity (14666.7 mPas).
Development Strategy of Red Seaweed Industry (Rhodophyta) in the Poleang Minapolitan Cluster Bombana Regency Pratama, Rahmat Tata; Purwadi, Didik; Widodo, Kuncoro Harto
agriTECH Vol 45, No 3 (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.94052

Abstract

Indonesia is the world’s largest producer of red seaweed, but its utilization as a source of economic growth is still not optimal, as evidenced by the large amount of exports in raw form, insufficient land utilization, and harvest yields that do not meet standards. This study aims to formulate development strategies for the red seaweed industry in the Poleang sub-district of Bombana Regency through the identification of internal and external conditions. Data was collected through observation, interviews, and questionnaires. The analysis used includes descriptive, financial, and SWOT analysis. The results of the study show that the red seaweed industry in Poleang still faces various challenges, such as red seaweed production that does not meet standards, unstable production volumes, seaweed processing plants operating below full capacity, low educational levels among farmers, limited market access and capital resources for farmers, the absence of structured farmer groups, the suboptimal role of financial institutions, climate and weather changes, pests and diseases, and highly volatile seaweed prices. However, there are also significant development opportunities, such as the availability of extensive cultivation areas conducive to seaweed growth, a sufficient labor force, experienced farmers, relatively easy seaweed marketing, simple cultivation techniques, the availability of tissue culture technology and processing industries, profitable cultivation efforts with an RC ratio of 1.94, and the significant potential of the red seaweed market and its processed products both domestically and internationally. Strategies that can be implemented for the development of the red seaweed industry in the Poleang Sub-district cluster of Bombana Regency include optimizing seaweed production through resource optimization, improving productivity and production quality, enhancing the role and functions of institutions, increasing human resource capacity, promoting the use of high-quality seeds, and establishing and strengthening partnership and marketing patterns for seaweed.
The Effect of Red-Blue Led Intensity on the Growth and Yield of Lettuce Varieties Cultivated Using NFT Hydroponics Wahyudi, Muhammad Adiyat; Atikah, Titin Apung; Syahrudin, Syahrudin; Soeparno, Soeparno; Sirenden, Ruben Tingting; Asie, Kambang Vetranie; Widyawati, Wahyu; Rahayu, Yekti Sri
agriTECH Vol 45, No 3 (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.94942

Abstract

Optimizing the growth of lettuce (Lactuca sativa) under controlled lighting conditions is essential for improving indoor farming systems. Therefore, this study aims to examine the effect of the intensity of 3030 LED (light emitting diode) type 7520 red-blue Grow Light on the growth of 3 Lettuce varieties, which were cultivated using NFT hydroponics. The study procedures were carried out using Completely Randomized Design (CRD) with 2 factors. These factors included 1) intensity of the red-blue SMD 3030 LED Grow Light type 7520 with levels of 0%, 30%, 70%, and 100%, and 2) lettuce varieties, namely Batavia Caipira, Red Rapid, and New Grand Rapid. Data obtained were analyzed for variance at the 5% level and the Honest Significant Difference Test at the 5% level. The results showed that giving a red-blue SMD 3030 type 7520 LED Grow Light with an intensity of 100% to Batavia Caupa lettuce variety produced the highest number of leaves at 35, 42, and 45 days after sowing (DAS). Moreover, an intensity of 70% led to greater plant height, which was observed to be better at 45 days after sowing. LED lights with 100% intensity promoted superior growth in leaf area, fresh stover weight, and fresh root weight compared to other intensities. New Grand Rapid variety exhibited a plant height of 47 cm, a leaf area of 109.1 cm², a fresh stem weight of 144.2 g, and a dry root weight of 1.8 g, outperforming the other varieties. Meanwhile, Batavia Caipira variety produced a greater number of leaves (29.3 leaves) compared to others.
Physicochemical and Sensory Quality of Noodle with Taro and Gembus Flour Ayustaningwarno, Fitriyono; Velicia, Velicia; Christanto, Monica Lemuela; Indriyanti, Risa; Wijayanti, Hartanti Sandi; Rahadiyanti, Ayu; Afifah, Diana Nur; Rustanti, Ninik; Anjani, Gemala; Ayu, Azzahra Mutiara
agriTECH Vol 45, No 3 (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.98089

Abstract

Consuming low glycemic index (GI) foods is crucial for managing glycemic control in people with diabetes mellitus (DM). Meanwhile, taro (Colocasia esculenta L. Schott) flour, recognized for low GI and resistant starch content, along with gembus flour, rich in fiber and protein, are potential substitutes in the formulation of dried noodle designed for DM diets. This study aimed to investigate five formulations namely F0 to F4 with varying percentages of taro and gembus flour using a completely randomized design. The parameters analyzed include energy content, proximate composition (carbohydrates, protein, fat, moisture, ash), dietary fiber, resistant starch, starch digestibility (using Kjeldahl, Soxhlet, and AACC 66-50 methods), as well as cooking quality. Statistical analysis used Kruskal-Wallis, Mann-Whitney, and one-way analysis of variance (ANOVA) with post-hoc tests to assess differences. Organoleptic quality was evaluated using hedonic and Just About Right (JAR) scales, while GI and glycemic load (GL) were determined by comparing glucose response curves. The results showed that higher gembus flour content reduced energy content, carbohydrates, starch digestibility, and GL, while increasing protein, fat, ash, dietary fiber, resistant starch, and cooking loss. The optimal formulation, F4 (20% taro flour, 20% gembus flour), was favored due to the balanced nutritional profile indicated by lower levels of carbohydrates and fat with higher levels of protein and fiber, as well as consumer preference. In conclusion, substituting taro and gembus flour in dried noodle significantly impacts nutritional composition, cooking quality, organoleptic attributes, and glycemic response, making both suitable alternatives for managing DM dietary needs.
Evaluating Effect of Continuous and Supplementary Irrigation Regimes on Vegetative and Reproductive Growth of Quinoa Aghhavani-Shajari, Mahsa; Ghorbany, Morteza; Fallahi, Hamid-Reza; Mahmoodi, Sohrab; Ramazani, Seyyed Hamid Reza
agriTECH Vol 45, No 3 (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.98683

Abstract

Quinoa is a nutritious pseudo-cereal with considerable tolerance to various environmental stresses, making it a promising candidate for introduction into Iran’s agro-systems. In this study, effect of seven irrigation treatments on growth and yield of quinoa was investigated at the Sarayan Agricultural Faculty, during 2017. Irrigation treatments included continuous irrigation (CI) during the growing season with intervals of 1, 2, and 3 weeks (CI1W, CI-2W, and CI-3W, respectively), supplementary irrigation (SI) with 1, 2, and 3 times during the last month of plant growth (SI-1T, SI-2T, and SI-3T, respectively) and stopping irrigation after plant emergence (SIAE: Just two times irrigation for germination and emergence). The effect of irrigation management was significant on chlorophyll index (measured by SPAD meter: Soil Plant Analysis Development), panicle length (PL), 1000-grain weight, biological yield (BY), seed yield (SY), and harvest index (HI). Irrigation management affected all measure parameters, such as SI, in particular SI3T, which improved the amount of SPAD compared to the other treatments. The highest PL was gained in CI treatments, while there was no significant difference between all SI treatments with SIAE. The best treatment in terms of BY, was CI-1W (2440 kg/ha) followed by CI-2W and CI-3W, while SIAE showed the lowest BY (1092 kg/ha). SY for both CI (250, 211, and 245 kg/ha for CI-1W, CI-2W, and CI-3W, respectively) and SI (225, 173 and 143 kg/ha for SI-3T, SI-2T, and SI-1T, respectively) managements was more than SIAE (78 kg/ha). SI had a positive effect on HI, thereby the highest value of this index was gained in SI3T (21.6%) and SI-2T (18.5%). In summary, quinoa showed substantial tolerance to drought stress, producing viable SY even under semi-rainfed (SIAE) conditions. These results highlight quinoa’s potential as a robust crop for arid and semi-arid regions, where water availability is a limiting factor.
Cover Vol. 45 No. 3 Vol. 45 No. 3, Cover
agriTECH Vol 45, No 3 (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.110852

Abstract

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