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Indonesian Journal of Applied Research (IJAR)
Published by Universitas Djuanda Bogor
ISSN : -     EISSN : 27226395     DOI : https://doi.org/10.30997/ijar.v1i3
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Computer Science & IT
Indonesian Journal of Applied Research (IJAR), e-ISSN 2722-6395 is high quality open access peer reviewed research journal that is published by Universitas Djuanda (UNIDA). IJAR dedicated to publish significant research findings in the field of Applied Sciences, Engineering &Technology. We welcome original empirical research articles with novel perspectives and/or methodological approaches that would appeal to an international readership. We do not accept unsolicited conceptual and theoretical papers. The journal is designed to serve researchers, developers, professionals, graduate students and others interested in state-of-the art research activities in Applied Sciences, which covers four (2) majors areas of research that includes Applied Sciences, Engineering &Technology. The journal was first published in April 2020 and published every April, August and December.
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)
Articles 121 Documents
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The Effectiveness of Public Green Open Space Capabilities in Reducing Flooding Yumna; Witno; Najib, Nardy Noerman; Faqi, Muh
Indonesian Journal of Applied Research (IJAR) Vol. 5 No. 2 (2024): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v5i2.424

Abstract

The Palopo City watershed could not accommodate the high discharge of rainfall that had fallen previously. The Green Open Space (GOS) had an ecological function by absorbing rainwater. Urban green open spaces absorbed surface flow water in the past, reducing the risk of flooding. In the past, this research measured the effectiveness of three green open spaces (Islamic Center, Pancasila Field, and Salubulo Field) in reducing flooding in Palopo City. We collected data on vegetation types, infiltration capacity, and runoff discharge. Data analysis involved the analysis of infiltration capacity (F), runoff discharge (Q), and green open space effectiveness. In the three green space locations, the following vegetation types were found: Katapang (Terminalia catappa), Palm (Dypsis lutescens), Trambesi (Samanea Saman), and Grass (Cyperus rotundus). The highest total infiltration capacity in the Salubulo Field Green Space resulted in 155 m3/hour (fast category). In the past, the most significant runoff discharge's total value was GOS Pancasila Field: 713.4 mm3/minute. The study concluded that the Salubulo Field Green Space had the highest infiltration capacity (160 m3/hour) and runoff discharge (69 mm3/minute), making it the most effective in reducing flooding in Palopo City in the past. This was > 1 (effectiveness criteria achieved), and the space was dominated by vegetation (trees and grasses).
Sensory Analysis and Panelist Assessment on Paired of French Fries and Chili Sauce Puspitasari, Armina Meikyo; Nurtama, Budi; Hunaefi, Dase
Indonesian Journal of Applied Research (IJAR) Vol. 5 No. 2 (2024): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v5i2.458

Abstract

Food pairing was the process of combining food or food and beverages to produce sensory characteristics. The consumption of snacks with commercial chili sauce as a supplement was widespread among consumers. Research on food pairing of commercial chili sauce with French fries was limited. The research aimed to describe and understand the sensory profile of chili sauce with its accompanying foods and identify changes in sensory attribute intensity when chili sauce was paired based on consumer perception. The methods used were Quantitative Descriptive Analysis and Rate All That Apply. The main ingredients were four commercial chili sauces and three commercial French fries. The sensory characteristics of chili sauce and French fries pairs were evaluated using QDA with trained panelists and RATA with consumer panelists. The results from the QDA method showed dominant characteristics such as potato flavor, crunchy texture, oily mouthfeel, sweet taste, and sour taste. According to PCA and spider web in QDA, it can be observed that the sample pairs with the highest intensity were sample pairs 47 and 87. Based on the RATA test results, According to PCA and spider web in RATA, it can be observed that the sample pair with the highest intensity was sample pair 65.
Rooting Medium and Indole-3-Butyric Acid (IBA) Stimulate Adventitious Rooting in Codiaeum ‘Aucubaefolia’ Dasanayaka, Y.M.H.M.H.; Attanayake , R.M.T.D.; Sawbhagya , L.H.N.; Wickramasinghe , P.A.S.C.; Sandarenu , K.M.S.D.; Gamage , S.N.W.; Hettiarachchi , W.A.B.H.; Dilshan , H.K.L.; Dayarathna , C.R.; Kumarihami, H.M. Prathibhani Chamidha
Indonesian Journal of Applied Research (IJAR) Vol. 5 No. 2 (2024): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v5i2.462

Abstract

The bright coloring of Codiaeum 'Aucubaefolia' leaves has attracted high demand in the floriculture crop industry. The stimulatory effect of rooting hormone (indole-3-butyric acid; IBA) and rooting media on adventitious root growth of 'Aucubaefolia' was evaluated. The study was conducted as two experiments to determine the rooting performance of ‘Aucubaefolia’ stem cuttings. The first experiment was designed to test the rooting performances of unrooted cuttings after a 48-hour cold storage condition at 21°C. The influence of rooting media and IBA on the development of rooted cuttings was assessed in experiment two. Coir dust and jiffy pellet were tested as two media and 0 mg·L-1, 250 mg·L-1, 500 mg·L-1, and 1000 mg·L-1 were tested as four concentrations of IBA. The most significant effects were shown by rooting media on the rooting of ‘Aucubaefolia’ stem cuttings. Among the two media, the jiffy pellet reported the highest number of roots per cutting, root-to-shoot ratio, and average root diameter. The coir dust medium showed the minimum days to root initiation. The application of 500 mg·L-1 IBA experienced the highest number of roots in jiffy pellet medium. Subsequently, the vegetative propagation of C. variegatum ‘Aucubaefolia’ using stem cuttings was significantly influenced by the rooting medium and IBA concentration.
The Insects Visitor on Wild Israeli Grass Flowers (Asystasia gangetica (L.) T. Anderson) Sumah, Astrid Sri Wahyuni
Indonesian Journal of Applied Research (IJAR) Vol. 5 No. 2 (2024): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v5i2.484

Abstract

Insects are invertebrate fauna that are important in various ecosystems and have high diversity and adaptability to various habitats. Insect diversity plays an important role (pollinator, pest control, or natural enemy) in several sectors, such as agriculture, ecology, human health, and natural resources. Apart from their beneficial role, the presence of insects can also be detrimental to humans; for example, insects can cause damage to agricultural products. Therefore, this research aimed to determine the diversity and role of insect visitors to the flowers of the Israeli grass plant (Asystasia gangetica). The research was carried out using a scan sampling survey method around community settlements, especially locations that various wild plants still cover. The research results showed that ten species and 255 individual insects visited Israeli grass flowers, which were divided into five orders, namely Lepidoptera, Coleoptera, Hemiptera, Diptera, and Hymenoptera. The order Lepidoptera is a flower-visiting insect species with the highest abundance and is a pollinator. Flowering plants that grow wild, such as Israel grass, benefit society indirectly by being used as traditional medicine. However, they also positively impact the diversity of flower-visiting insects. The presence of flower-visiting insects that work around grass indirectly has the potential to conserve beneficial grass plants but is underestimated by the community.
Total Phenolics, Flavonoids, and ɑ-Glucosidase Inhibitory Activity of Red Betel (Piper crocatum) Extract in Various Solvents Abdullah, Wais; Seno, Djarot Sasongko Hami; Safithri, Mega
Indonesian Journal of Applied Research (IJAR) Vol. 5 No. 2 (2024): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v5i2.486

Abstract

Alpha-glucosidase enzyme activity needs to be inhibited to avoid increasing blood sugar levels in diabetics. Red betel leaf extract is reported to have active compounds such as phenolics and flavonoids that have alpha-glucosidase enzyme inhibition activity. Previous research showed that 70% betel leaf extract has an ɑ-glucosidase enzyme inhibition activity of 69.84%, but it is not yet known how the effect of extracts with different levels of polarity on the inhibition activity of alpha-glucosidase enzyme. This study aimed to determine extracts that have optimal levels of phenolic and flavonoid content and the highest suppression of α-glucosidase activity. The multistage maceration method was used to extract red betel leaf simplicia using solvents with different levels of polarity (n-hexane, ethyl acetate, methanol). Tests were conducted on overall phenolic concentration, flavonoids, and ɑ-glucosidase inhibition ability. Data were analyzed using one-way ANOVA test with Tukey's further test (p<0.05). The results of the assessment of phenolic concentration, flavonoids, and α-glucosidase inhibitory activity as a whole showed statistically significant differences (p<0.05) in all extracts with the highest total phenolic and flavonoid content found in the n-hexane extract of 25.68 ± 0.29 mg GAE/g and 65.84 ± 0.96 mg QE/g respectively. Meanwhile, methanol extract of red betel leaf became the best extract in this study with the greatest inhibition among all extracts with a percent α-glucosidase inhibition value of 43.87 ± 1.83%.
Viability and Survival of Lactobacillus casei Encapsulated with Whey, Sucrose and Maltodextrin Using Freeze-Dried Technique Seveline; Tamara, Thasya
Indonesian Journal of Applied Research (IJAR) Vol. 5 No. 2 (2024): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v5i2.498

Abstract

Lactobacillus casei bacterium in probiotic products and in the human digestive tract could be decreased so that encapsulation preserved techniques need to protect the viability of Lactobacillus casei. The aimed of this study was to determine the ability and survival of L.casei with cryoprotectant materials that consist of a combination of whey with sucrose and whey with maltodextrin using freeze drying technique. The study design used was a complete randomized design consisting of five treatments with two replications which were control; whey 10% with sucrose 10%; whey 10% with maltodextrin 10%; whey 20% with sucrose 10%; and whey 20% with maltodextrin 10%. The anova test α = 0.05 was conducted, if significantly different than continued with a Duncan test. The results showed Lactobacillus casei encapsulated with whey 20% (v/v) and sucrose 10% (w/v) had the highest viability to the freeze drying process and during 28 days of storage at low temperatures (4°C) with the viability of each amounted to 92.66% and 90.38%. Lactobacillus casei with whey 20% (v/v) and maltodextrin 10% (w/v) was the best survival to 0.5% bile salts and low pH (pH 2). The best result was Lactobacillus casei with whey 20% (v/v) and maltodextrin 10% (w/v) to encapsulated and protected the bacterium.
Microbial Protein Synthesis by Cellulolytic Bacterial Isolates from Feces of Indonesian Endemic Herbivores Pramartaa, Ikhsan Qodri; Wiryawan, Komang G.; Suharti, Sri
Indonesian Journal of Applied Research (IJAR) Vol. 5 No. 2 (2024): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v5i2.509

Abstract

Cellulolytic bacterial play an important role in the synthesis of microbial protein in the small intestine as high-quality protein. This research aimed to observe the growth patterns of cellulolytic bacterial isolates from the feces of endemic herbivorous animals in Indonesia, and to evaluate the effect of the addition of cellulolytic bacterial isolates on the synthesis of microbial proteins in vitro. The study used a completely randomized design with four treatments and five replications. The treatments included T0 = Concentrate mix 40%: elephant grass 30%: palm leaves 30% (control), T1 = T0 + 105 CFU mL-1 cellulolytic bacterial isolate, T2 = T0 + 106 CFU mL-1 cellulolytic bacterial isolate, and T3 = T0 + 107 CFU mL-1 cellulolytic bacterial isolate. Variables measured were the growth pattern of bacterial isolates, bacterial population at the optimal growth point, and microbial protein synthesis. The results showed growth pattern of cellulolytic bacterial isolates from Muntjac, Deer and Anoa feces have similar pattern, and was different from the growth pattern of bacterial isolates from bison feces. The optimal growth point of cellulolytic bacterial isolates from the feces of Muntjac, Deer, and Anoa at the 8th hour of incubation with bacterial populations of 1.3 x 109 CFU mL-1, 1.7 x 109 CFU mL-1, and 1.4 x 109 CFU mL-1. The growth pattern and optimal point of cellulolytic bacterial isolates from the feces of Bison at the 12th hour after incubation with bacterial populations of 1,1 x 1010 CFU mL-1. The addition of cellulolytic bacterial isolates did not affect microbial protein synthesis.
Formulation and Shelf-Life Estimation of Ready-to-Drink Avocado Coffee Milk and Durian Coffee Milk Products Muhandri, Tjahja; Yufriyana, Nur; Suyatma, Nugraha Edhi; Sugihartini, Rahayu Lestari
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 2 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i2.734

Abstract

Coffee is widely and regularly consumed in Indonesia. The trend towards practical lifestyle has driven the development of ready-to-drink (RTD) coffee products. Avocado and durian are commonly incorporated as additives due to their unique flavor profiles, creamy textures, and potential to enhance the functional properties of coffee-based drinks. This study aimed to identify the optimal formulation of RTD avocado coffee milk and durian coffee milk products based on sensory characteristics and to estimate their shelf life using the direct method. The formulations were developed by varying the fruit purée concentration: 5%, 7.5%, and 10% for avocado coffee milk, and 5%, 10%, and 15% for durian coffee milk. The hedonic rating test revealed that formulations containing 5% avocado purée and 15% durian purée were the most preferred by 50 panelists. These selected formulations were further analyzed to estimate product shelf life at 4°C and 18°C. Quality changes were evaluated through objective parameters (color change [∆E], pH, viscosity, and physical stability) and subjective parameters (color, aroma, and flavor intensities). Products stored at 18°C deteriorated more rapidly and were excluded from further shelf life prediction. The estimated shelf life of avocado coffee milk stored at 4°C was 59 days based on flavor parameter (R² = 0.9338), while durian coffee milk had an estimated shelf life of 61 days based on pH (R² = 0.9305).
Analysis of Multiple Intelligence and Intelligence Quotient to Medical Record Officers Performance Faida, Eka Wilda; Prasetyorini, Anif; Wahyuni, Titin; Masyfufah, Lilis; Puryanti, Puryanti; Sutha, Diah Wijayanti
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 3 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i3.636

Abstract

Incomplete and inconsistent data recording, as well as low accuracy, were the main factors that reduced the quality of performance in health care facilities. Previous research showed that more than 50% of medical record officers competencies were categorized as low. Competence could impact hospital performance and quality. Competence could be measured by multiple intelligences and intellectual intelligence. It was important to carry out multiple intelligence and intelligence quotient analyses of the performance of medical record officers in recording patient medical data. The aim of the research was to assess the influence of multiple intelligence and intelligence quotient on the performance of officers in recording patient medical data. The method used was analytical observational research with a cross-sectional design. The purposive sampling technique involved 35 respondents. Data analysis was conducted using the Structural Equation Model with Partial Least Square. The influence of multiple intelligences on performance had a path coefficient value of -0.003 with a T-statistic value of 0.018 (< 1.96) and a P-value of 0.986, indicating no significant effect. There was a positive influence of intelligence quotient on performance with a path coefficient value of 0.745, a T-statistic value of 4.998 (> 1.96), and a P-value of 0.000. The strength of the influence of multiple intelligence and intelligence quotient on performance showed an R-square of 55%, which indicated a moderate influence.
Increased Hemoglobin Levels and Quality of Life in Menstruating Women Consuming Ajwa Date Palm (Phoenix dactylifera) Juice Marfu'ah, Nurul; Yuwono, Ratna Rahajeng Putri; Fatihah, Nadia Iha; Pibriyanti, Kartika
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 3 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i3.649

Abstract

Anemia was prevalent among menstruating adolescent girls, affecting about 32% in Indonesia, and often reduced quality of life. Date palm juice contained carbohydrates, tryptophan, omega-3, vitamin C, vitamin B6, zinc, and magnesium, which could support hemoglobin improvement. This study aims to evaluate the potential of Ajwa date juice as an alternative therapy for women with menstrual anemia. An experimental design included five groups: Ajwa date palm juice (50% concentration) administered once daily (JKA1), twice daily (JKA2), or three times daily (JKA3); a positive control with a commercial anti-anemia product; and a negative control with mineral water. Treatments were given for five days to 25 respondents. Quality of life was assessed using a modified EQ-5D questionnaire, validated with the Pearson correlation test and tested for reliability with Cronbach’s alpha. Data were analyzed using one-way ANOVA at a 95% significance level. Results showed the greatest hemoglobin increase in the JKA3 group (mean 2.2 g/dL) and the smallest in JKA1 (1.4 g/dL), with no significant differences between groups (p > 0.05). Quality-of-life improvement was achieved fastest in JKA3 (2.4 days), followed by JKA2 and JKA1 (2.8 days each), also without significant differences (p > 0.05). In conclusion, Ajwa date palm juice improved hemoglobin levels and quality of life in anemic respondents. The three-times-daily regimen showed the most benefit, although statistical significance was not observed.

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