bluuebunny/crossref_metadata_2025_split huggingface dataset:
Effect of shade tree on nutrient concentration in coffee (Coffea arabica L.) leaves
Authors: Amriani R S , Zaitun Z , Mayani N , Erika C , Hidayat F 
Published: July 2024

Abstract
Leaf tissue analysis is a measurement of the levels of elements contained in plant leaves. In this case, the leaves can describe the amount of absorption of a nutrient because most of the assimilation results are collected in them. The nutrients that can be absorbed by plant roots are the amount of nutrients available in the soil. The use of shade trees with different types of sunlight absorption intensity causes the conditions for leaf nutrient absorption in plants to also vary. This research was needed to determine the effect of shade type on the nutrient concentration of nitrogen, (N), phosphorus (P), and potassium (K) in the leaves of Arabica coffee plants. This research was carried out at the Koperasi Ribang Gayo Musara, Pantan Musara Village, Pegasing Subdistrict, Central Aceh District, Aceh, and the Agricultural Instrument Standardization Agency (BSIP) Aceh. This research used a non-factorial Randomized Block Design with five treatments where each treatment 4 replications. Treatments consisted of types of shade plants on coffee plants, namely, control/no shade, small lamtoro shade (Leucaena leucocephala ssp. leucocephala), big lamtoro shade (Leucaena leucocephala subsp. glabrata), banana shade (Musa paradisiaca L.), avocado shade (Persea americana Mill.). The results showed that shade tree type significantly affect potassium (K) nutrient levels in coffee plant leaves. Coffee plant shaded by big lamtoro had better N, P and K nutrient levels compared to small lamtoro, banana, avocado, and control.
Stabilization of o/w emulsion using breadfruit (Artocarpus altilis) starch modified by heat moisture treatment, acetic acid and combination of both
Authors: Anwar S H , Rahayu R , Yuliani S , Satriana  , Safriani N 
Published: July 2024

Abstract
Exploration to utilize breadfruit (Artocarpus altilis) starch as stabilizer in food emulsion is increasing significantly. Breadfruit starch modification using octenyl succinic anhydride (OSA) has successfully investigated, however some methods are rarely been applied for breadfruit starch. Therefore, this research aimed to examine the ability of breadfruit starch which was modified using heat moisture treatment (HMT), acetic acid, and combination of both to stabilize oil-in-water (o/w) emulsion. The variables investigated were: 1) the addition of 2% of breadfruit starch modified by HMT, acetic acid and combination of both methods, and 2) the percentage of oil (25% and 40%). The stability of o/w emulsion was measured by the creaming index (CI), emulsifying activity (EA), observation of visible boundaries during storage and the size of droplets using light microscope. The results showed that the highest CI value (53.7%) was obtained in an emulsion with 25% oil stabilized by acetic acid modified starch. The higher the oil concentration in emulsion, the smaller the droplets produced. The most stable emulsion was the one prepared by addition of 40% oil and stabilize by 2% modified breadfruit starch using acetic acid. This emulsion has 33.33% CI value, 47.5% EA after 10 days of storage with evenly distributed droplets and almost uniform in size.
Improving productivity of arabica coffee genotype G1 through potassium fertilization
Authors: Hifnalisa H , Jufri Y , Rizka F , Rosmaiti R 
Published: July 2024

Abstract
One of the determinants of coffee productivity is the availability of nutrients in the soil, with potassium being among the essential nutrients required to enhance productivity. Therefore, this study aimed to determine the optimal potassium fertilizer dosage needed to increase the productivity of Arabica coffee plants of the G1 genotype. This study was conducted in the experimental garden of Syiah Kuala University in Bener Meriah Regency, Aceh Province, Indonesia using a Non-Factorial Randomized Block Design (RBD). A total of 132 Arabica coffee trees of genotype G1 were randomly selected based on specific criteria, such as 8 years of age, planted with a spacing of 2.5 x 2.5 m, pruned properly, grown under moderately dense shade of Leucaena trees, and well-maintained. The treatments included a control group without potassium fertilizer and multiple groups receiving potassium fertilizers at 29, 58, 87, 116, and 145 kg K2O per hectare. These potassium sources were derived from potassium chloride (KCl) fertilizer containing 58% K2O and Rice Husk Ash containing 2% K2O, respectively. This resulted in 11 treatment units, each comprising 3 coffee trees replicated 4 times, for a total of 44 treatment units. The results showed that potassium fertilization from KCl and Rice Husk Ash had a significant effect on the increased productivity of Arabica coffee genotype G1. The effect was observed based on the number of productive branches per tree, clusters per branch, fruits per cluster, fruits per tree, the weight of red cherries per tree, parchment coffee per tree, green beans per tree, and the green beans yield at 14% moisture content. The optimal potassium fertilizer dosage was 145 kg K2O per hectare, equivalent to 250 kg KCl or 156.25 g KCl per tree. Additionally, it was observed that potassium sourced from KCl was more effective than potassium from Rice Husk Ash due to the longer time the latter takes to improve the productivity of Arabica coffee.
Therapeutic activities of honey in wound care: a narrative review
Authors: Khairan K , Mudatsir M , Diah M , Rizal S , Ikhlas Abdian Putra M , Miftahul Jannah S , Chairani I 
Published: July 2024

Abstract
Honey is a natural product that has a sweet taste and rich in phenolic compounds. Honey also contains some other compounds such as enzymes, amino acids, proteins, sugars, carbohydrates, lipids, vitamins and minerals. Honey has a potential as an antimicrobial, anti-inflammatory, anti-carcinogenic and antioxidant activity. Honey has an important role in wound healing, with minimum trauma. Honey is an excellent option for wound care managements and useful in other biomedical applications. Some of the advantages of the use of honey for wound care are the accelerated of dermal repair and epithelialization, ability to increase angiogenesis and immune response, and capability to reduce infections caused by pathogenic microorganisms. This paper clarifies the therapeutic properties of honey, and their mechanism of action as an antimicrobial agent, immunological modulator, and physiological mediator in wound healing. This paper also amplifies the main compounds responsible for the wound care capacity. The clinical review, both in vitro and in vivo studies involving in wound are also describes.
Seed invigoration to improve viability, seed vigour and growth of porang seedlings
Authors: Palupi T , Darussalam  , Aprizkiyandari S 
Published: July 2024

Abstract
The porang planting area is increasingly expanding. Providing seeds from seeds is considered better, but has problems with the dormancy period so efforts need to be sought to overcome them. This research aims to determine the increase in viability and vigor of porang seeds soaked in a functional microbial solution and to obtain the best growing medium for the growth and yield of porang plants. The research was carried out in Pontianak City from April to November 2021. This research consisted of two experiments. The first experiment used a non-factorial completely randomized design (immersion in functional microbial solution) with nine treatments. The variables observed included: vigor index, growth simultaneity, germination capacity, growth speed, plumule and radicle length. The second experiment used a split plot randomized block design, where the main plot was soil type and the subplot was soaking in a functional microbial solution (same as the first experiment). The variables observed included: plant height and tuber weight. The research results showed that SE21 isolate was the best in increasing seed viability and vigor. All functional microbes were equally good at producing plant height in the two growing media. Alluvial soil growing media: cow manure: roasted husks enriched with WH31C isolate produces the heaviest weight of porang tubers.
Chemical characteristics of original robusta coffee beans from Jember fermented with Saccharomyces cerevisiae starter using the semi-carbonic maceration technique
Authors: Afriliana A , Allenia Q R , Jayus  , Giyarto  
Published: July 2024

Abstract
This research aims to evaluate the chemical characteristics of original robusta coffee beans fermented using Saccharomyces cerevisiae. The method used is semi-carbonic maceration with variations in starter concentration (20%, 30%) and fermentation times (24 hours, 48 hours, 72 hours). The results of the research showed that samples with 30% concentration of starter and 72 hours fermentation times showed a decrease in chemical compound content with the lowest values, including caffeine content of 0.91%, reducing sugar content of 0.86%, and protein content of 10.79%. On the other hand, control samples without fermentation treatment had the highest values for each chemical compound content. The pH value obtained ranges from 4.97 to 4.47 and has a water content of between 10.20% - 11.37% and based on SNI. This research shows that fermentation with Saccharomyces cerevisiae can have an influence on the quality of original robusta coffee beans and is expected to provide good taste and aroma.
Estimation of genetic parameters of resistance to Anthracnose disease in several genotypes of ornamental Chili (Capsicum annuum L.)
Authors: Hafsah S , Marliah A , Safhira P B , Pratama A I , Nura  , Fazillah S S 
Published: July 2024

Abstract
Ornamental chilies have attractive and varied shapes and fruit colors, so they are liked by consumers. However, ornamental chili plants are susceptible to disease, especially anthracnose. One control that can be done is by assembling resistant cultivars. Resistant cultivars can be determined by estimating genetic parameters to obtain selection characters for resistance to anthracnose disease. The purpose of this study was to determine the genetic parameters of anthracnose disease resistance in several genotypes of ornamental chili plants. This study used a non-factorial randomized block design with four chili genotypes, namely Ayesha, Nazla, Violetta and Syakira, each of which was repeated three times. The results showed that heritability values with high criteria were found in the parameters of fruit length, fruit diameter, weight per fruit, number of fruits per plant, fruit weight per plant, productivity, incidence of ripe chili disease and disease intensity of ripe chili.
Headspace gas chromatography with various sample preparation and chemometric approaches to improve discrimination of wild and feeding civet coffee
Authors: Prajna D , Barea-Sepúlveda M , Calle J L P , Suhandy D , Setyaningsih W , Palma M 
Published: July 2024

AbstractCivet coffee, or kopi luwak, has attracted significant attention within the coffee industry in certain regions due to its distinct flavor characteristics that arise from the digestive processes of the civet. The ability to discriminate between wild and feeding civet coffee is of major importance in upholding the industry’s established standards of quality and transparency. This study introduces an innovative method to differentiate between these two coffee types using Headspace Gas Chromatography-Mass Spectrometry (HS-GCMS) with advanced data analysis using machine-learning techniques. This study encompasses seven samples collected from various regions, all of which were subjected to analysis in both roasted and unroasted forms. The data analysis consisted of Principal Component Analysis (PCA) and Hierarchical Cluster Analysis (HCA), which revealed clear trends that were mostly influenced by processing, indicating how roasting affects the chemical profiles of various coffee types. Further classification was conducted using Support Vector Machine (SVM) and Random Forest (RF) machine learning algorithms. SVM exhibited notable accuracy at 90%, effectively discriminating between wild and feeding civet coffee, whereas RF outperformed it with a remarkable 100% accuracy. This study contributes to the field of coffee characterization by presenting a robust approach to discriminate between roasted and unroasted wild and feeding civet coffee. This tool serves as a starting step for a valuable resource for both farmers and customers, as it promotes sustainable and ethical practices while retaining the distinct flavor characteristics of this exceptional specialty coffee.
Re-design of homestay in Takengon city with contemporary Gayo concept
Authors: Ziaulhaq  , Wulandari E , Idawati D E 
Published: July 2024

Abstract
As tourism develops in the city of Takengon, it is considered profitable for lodging business owners, from star-rated accommodation to jasmine classes emerging in the city of Takengon, making competition very tight. One type of accommodation business that is currently competitive and has great potential to grow rapidly is homestay. With the existing land, the arrangement of the homestay building is still not optimal, where the activities and circulation of the owner still mingle with guests. Likewise, the standard of accommodation facilities still needs to be added to maximize services. Generally, homestays are located in residential areas or tourist villages because of their function as a medium of introduction to the surrounding culture. Homestay re-design aims to redesign the homestay building according to its function with a picture of the life of the gayo people living in it, it can also strengthen the quality of homestay in the future as a competitor in the lodging business competition. The contemporary architectural style was chosen due to its characteristics of being contemporary, flexible and related to the principles of gayo architecture. The research method was carried out with literature studies and field surveys. The field survey included observations, interviews and direct observations of the residents of the houses in the housing estate. Then designed new facilities for the homestay such as, special sleeping room, fire kitchen, restaurant, front office, service area, as well as site arrangement in the form of cotage and open space/ebalen. The design is carried out with the concept of applying the rules of gayo contemporary architecture, namely the application of the concept of natural harmony to the zoning of the site and the application of the concept of filigree in the figure of the building appearance.
Natural mangrove associated gastropods at Bengkalis island, Riau Province, Indonesia: prelimanary survey
Authors: Ariyanto D , Pringgenies D 
Published: July 2024

Abstract
Mangroves have different natural and unnatural conditions and are known as marine habitats. The aim of this research was to determine the relationship between gastropods and environmental conditions for monitoring mangrove rehabilitation. The research was conducted from 8th to 16th October 2023 at Bengkalis Island, Riau Province, Indonesia. This research used a survey method with observation of mangroves, marine biota, and environmental parameters on landward, mid ward and seaward. The measurement of marine biota was conducted using a transect of 25 cm x 25 cm and environmental parameters included pH using a pH meter, salinity using a refractometer, and sediment type analysis. pH and salinity values ranged from 5-8 and 14-35 psu. The number of gastropods found was 5 (five) specimens in Bengkalis Island. In general, based on morphology, the weight of each of the largest showed T. telescopium > L. angulifera > C. cingulata > C. obtusa > C. angulifera. The results showed that natural mangroves described more various gastropods. Salinity and pH can also be used as a major limiting factor for mangrove rehabilitation monitoring.
Biomass pellets fuel from coffee peels as a renewable energy source and its application in low emission stove
Authors: Harsono S S 
Published: July 2024

Abstract
The biomass pellet used in this study was mostly composed of coffee peels, which were then blended with tapioca flour and molasses to create a cohesive material. Three distinct binder concentrations namely 10, 15%, and 20 were applied. Tapioca flour and molasses were added to the biomass pellets at different concentrations, which increased their density, ash content, and fixed carbon content while decreasing their moisture and volatile matter contents. It had the following characteristics namely 15.18% fixed carbon content and 610 kg/m3 biomass pellet density, a 0.008 kg/min fuel usage rate, a 3.03 percent ash content, an 81.79% volatile matter content, 8.03% moisture content, and 33.15% thermal efficiency. The design findings were computed using the stove’s dimensions, which were 26.5 cm in diameter and 37 cm in height. This distance, which totals 8 cm, may lessen the furnace and cause burning to produce heat.
Modeling flood characteristics in the Krueng Keureuto river basin in North Aceh regency using the Jams/J2000 application
Authors: Pratama T R Y , Fatimah E , Syahreza S , Julian M M 
Published: July 2024

Abstract
Significant land use changes in the Krueng Keureuto River basin exacerbate flooding annually. Despite intensive flood studies, there’s no mapped information on past and future flood inundation. Flood discharge parameters rely on empirical formulas, overlooking climate factors and flood event data, crucial in flood analysis due to climate change. To comprehensively understand flood characteristics, this research employs the JAMS/J2000 application on climatological data (2010-2020), land use, soil type, and geological maps. Using HRU-Web, Hydrologic Response Units (HRUs) are derived for J2000 modeling, producing four runoff components: overland flow, interflow, fast groundwater, and slow groundwater. Notably, the highest overland flow, or flood runoff, was 23.21 mm on December 26, 2014, with 40.69 mm/day rainfall. Interflow peaked at 6.72 mm on October 8, 2011, with 18.10 mm/day rainfall. Fast groundwater reached 1.28 mm on November 30, 2019, with 13.18 mm/day rainfall, and slow groundwater peaked at 1.04 mm on November 13, 2020, with 48.87 mm/day rainfall. This study provides comprehensive insights into the complex dynamics of flood characteristics in the Krueng Keureuto River basin.
Current dynamics to detect the spread of oil spills in coastal waters
Authors: Qauvani Z R , Irham M , Setiawan I , Joni J 
Published: July 2024

Abstract
Surface flow dynamics modelling is an important aspect of monitoring and detecting oil spills in marine environments, especially coastal waters. The model can predict the spatiotemporal distribution of oil spills in waters before remote sensing technologies such as radar and synthetic aperture radar (SAR) detect the oil spill distribution range. The purpose of this study is to model two-dimensional (2D) surface flow to predict the extent of oil spills, especially in shallow water or coastal areas. The accuracy of this ocean current distribution model was then verified using the case of an oil spill in East Aceh waters based on the results of the detection of synthetic aperture Interference images from the Sentinel-2B satellite Radar (InSAR) Technology from August 1st to September 20th, 2021. The results show that when the fluid dynamics used is residual flow, the oil distribution trajectory moves partly to the north and partly to the south toward the coast of the leak location. However, when mean current is applied, the distribution expands to the south toward the coast. Based on the state of the wind distribution when the oil spill occurred, it shows the same direction as the residual current model, but the influence of the wind is greater than the residual current. So, it can be concluded that oil spills in the waters of East Aceh are more influenced by a combination of mean currents and surface wind direction. These results were validated by the results obtained from satellite images. Therefore, the satellite image validation results indicate that mean flow provide a more accurate indication of oil spill distribution than the average flow in South Aceh waters.
An empirical analysis of sustainability disclosure and its impact on firm performance: a study of companies in the agriculture sector listed on the Indonesian stock exchange
Authors: Zuraida Z , Ihsan M , Husna S 
Published: July 2024

Abstract
The agriculture sector plays a key role in the Indonesian economy, contributing significantly to the nation’s Gross Domestic Product (GDP) and providing livelihoods to a substantial portion of the population. In the last decades, there has been an increasing appreciation of the importance of sustainability within this sector. However, research exploring the influence of sustainability on company performance within the Indonesian agriculture sector remains limited, highlighting the ongoing need for further research. This study investigates how companies in the Indonesian Stock Exchange’s Agriculture Sector use sustainability disclosure to signal their sustainability practices and how this relates to their firm performance. The sample data of this study comprised of 135 observations of 44 companies listed in the Agriculture Sector from 2020 to 2022. Research data was collected from three sources: the sustainability report, the company’s annual report, and publicly available capital market data. The research data was analysed empirically using multiple linear regression analysis. The results indicate that the relationship between sustainability disclosure and financial performance unfolds as follows: Environmental, Social and Governance (ESG) factors positively influence financial performance, as measured by ROA and Return on Equity (ROE), yet exhibit no significant impact on firm performance when measured by Return on capital employed (RoCE). However, it’s noteworthy that, apart from book value, which unexpectedly displays a substantial negative relationship with both Return on Asset (ROA) and Return on Equity (ROE), all other control variables align with our expectations. Specifically, current assets, Earnings per Share (EPS), and net profit are consistent with our positive expectations, while current debt and leverage conform to our anticipated negative results.
Spatial analysis of mosque distribution for inclusive community services in Banda Aceh City
Authors: Fuady Z , Aulia F , Jumala M 
Published: July 2024

Abstract
In urban development, social facilities, especially mosques, are crucial in residential areas. This study in Banda Aceh City, governed by Islamic Shari’a principles, explores the multifunctional role of its 110 mosques beyond worship. They serve as hubs for Islamic festivals, educational activities, and communal deliberations. The research aims to analyze the spatial distribution and accessibility of these mosques within residential areas. Using buffer and Nearest Neighbor Analysis, four mosque typologies are identified: 1 provincial mosque, 7 large mosques, 79 jami’ mosques, and 23 public mosques. The scattered distribution pattern, with a ratio of 1.1849, persists across sub-districts. Coverage analysis reveals that mosque services extend to 71.5% of the city, with the Baiturrahman sub-district achieving a 100% coverage. These findings offer crucial insights for urban planning and policy development, emphasizing the potential transformation of mosques into comprehensive community centers addressing diverse social needs beyond their religious functions. This research underscores the importance of strategically aligning mosque provision with local population needs and demographic factors, promoting a more inclusive and integrated urban landscape.