bluuebunny/crossref_metadata_2025_split huggingface dataset:
Production of antioxidant C-phycocyanin using extraction process of Spirulina platensis in large scale industry
Authors: Wachda  , Hadiyanto H , Harjanto G D , Huzain M L , Aji R W 
Published: October 2019

Abstract

Spirulina platensis is one of the popular species that containing C-Phycocyanin. C-Phycocyanin has been used in many applications such as antioxidant, anti-inflammatory, and natural blue colorant. The increase of phycocyanin production from S. platensis is influenced by extraction method and solvent ratio. The phycocyanin pigment can be massive extracted using mechanical cell rupture like freezing thawing method and distillated water as solvent. This research aimed to produce high concentration of antioxidant phycocyanin from S. platensis using simple and efficient method for large scale industry and develop a method for primary extraction from dry biomass of S. platensis. There were 3 treatments and each treatment was conducted in 3 replications. Standardization of process treatments such as biomass : solvent ratio (1:6, 1:50 and 1:100) and processing time were carried out at thawing time (1 hour), freezing time (2 hours) and stirring time in water bath (0, 5 hour). The phycocyanin concentration and yield were determined by using spectrophotometer. The result showed that at biomass : solvent ratio of 1:50, resulted C-PC concentration of 0.179 mg/ml and its yield of 17.944 mg/g.
The use of solid phase spectrophotometry for control toxic metal ion content in milkfish cultivation
Authors: Saputro S , Mahardiani L , Ninda DCD 
Published: October 2019

Abstract
Solid-Phase Spectrophotometry (SPS) has been widely used in the study of trace element speciation in water. This spectrophotometer has advantages that have a high sensitivity, a small device (portable), and easy to use in the analysis process. This study aims to: (1) increase the use of SPS values in controlling toxic ions in water used for milkfish cultivation, and (2) determine SPS sensitivity for the determination of Cd(II) in pond water samples analyzed. The method used is laboratory experiment. The result showed that the SPS method can be used in the analysis of the content of Cd(II) in the pond water with such a high enough sensitivity results obtained LoD of 0.51 µg/L, RSD < 5% and recovery of 95-105%.
Effects of Kaempferia galanga L. essential oil incorporation on sensory and physical properties of dark chocolate bar
Authors: Handiati Y D , Praseptiangga D , Manuhara G J , Khasanah L U 
Published: October 2019

Abstract
Chocolate is the world’s most popular confectionery product of processed cocoa. The antioxidant content of cocoa flavanols in dark chocolate is higher than other types of chocolate. Widely cultivated in Indonesia, kencur (Kaempferia galanga L.) rhizome has many health benefits, including antitussive, expectorant, antioxidant, and hypocholesterolemic. The aims of this research were to evaluate the effects of variation concentration of kencur (Kaempferia galanga L.) rhizomes essential oil incorporation on sensory and physical properties of dark chocolate bar. Three formulas of dark chocolate bar with an addition of Kaempferia galanga L. rhizomes essential oil (0.1%, 0.2%, and 0.3%) were studied. The results showed that the addition of variation of the essential oil concentration (0.1%, 0.2%, and 0.3%) had no significant effect on the overall sensory properties. However, dark chocolate bar with the addition of 0.3% Kaempferia galanga L. essential oil (F3) showed the highest panelist acceptance on aroma attributes. It had very small color difference and the lowest hardness based on the result of physical characterization, suggesting that dark chocolate bar with the addition of 0.3% Kaempferia galanga L. essential oil (F3) is expected to be developed as one of chocolate-based functional food products.
Fruit identification and effect of starch isolation methods on color attributes of Cilacap bread fruit’s starch
Authors: Rahayu N S , Praseptiangga D , Hariyanto B , Samanhudi  
Published: October 2019

Abstract
Utilization of Cilacap breadfruit as a food source is very important for supporting local food diversification. The objectives of this study were to identify the Cilacap breadfruit based on morphology identification method and to evaluate the effects of starch isolation methods on color properties of its starch. The results showed that the morphological identification of Cilacap breadfruit was round - slightly oval, and the brownish green white spots-colored was shown on the ripe stage of fruit at the tree. The average weight of Cilacap breadfruit was 1.506 kg, and the yield of starch was 11.08%. The fruit identification was determined by LIPI Bogor Indonesia, of which confirmed that Cilacap breadfruit used in this study was a species of Artocarpus altilis (Parkinson ex. F.A. Zorn) Fosberg (Moraceae family). Starch isolation by using sediment separation extraction method after three-time decantation was shown as a better method than the non-separation isolation method. Color attributes of starch by using sediment separation extraction method gave a value of L* = 94.113, a* = 5.253 and b* = -1.506 for the white bottom sediment, while the brown color of the upper sediment gave L* = 87.587, a* = 5.063 and b* = 1.956.
Antioxidant capacity of pigeon pea (Cajanus cajan L.) sprouts elicited using NaCl with various elicitation time
Authors: Kristiani L S , Rajendra F M , Ariviani S 
Published: October 2019

AbstractPrevious research showed that pigeon pea has potential as an anti-diabetic functional drink related to its antioxidant capacity. Antioxidant capacity in legumes can be increased by elicitation. Improvement of antioxidant capacity in legumes elicited by NaCl was significantly higher than that of other abiotic elicitation. The objective of this study was to determine the antioxidant capacity of pigeon pea (Cajanus cajanL.) sprouts which were elicited using NaCl (50mM) with various elicitation times (8 hours, 12 hours, 16 hours) and germinated for 48 hours. The results showed that elicitation time did not have a significant effect on the total flavonoids content, but significantly increased antioxidant activity (DPPH radical scavenging, and reducing power) of pigeon pea sprouts along with increasing elicitation time. This study proved that elicitation using NaCl 50mM for 16 hours increases the total flavonoid content (69, 36%), DPPH radical scavenging activity (134, 18%), and reducing power (24, 54%) of pigeon pea sprouts. Elicitation using 50mM NaCl with 16 hours elicitation time and 48 hours germination time can be considered as a technique to enhance antioxidant capacity in legumes sprouts.
The effect of reduced acetic acid concentration on nano-chitosan formulation as fish preservative
Authors: Winayu I J , Ekantari N , Puspita I D , Ustadi  , Budhijanto W , Nugraheni P S 
Published: October 2019

Abstract
Nano-chitosan has antibacterial activity and can be used as fish preservative. Acetic acid concentration of 1% is commonly used to produce nano-chitosan but it affected consumer acceptance because of its acidity. This study aimed to reduce the concentration of acetic acid and observed its effects on particle size, pH, and bacterial growth inhibition activity. Besides, it was also observed the effect of nano-chitosan with acetic acid concentration reduction on total bacteria and sensory value when applied on tilapia fillets. The results showed that the higher concentration of acetic acid resulted smaller particle size of chitosan and higher bacterial growth inhibition. The similar trend was also shown by acetic acid solution in same concentration. However, the bacterial inhibition zone of nano-chitosan solution was higher than acetic acid solution for each variation of acetic acid concentrations. This was evidenced by the observation of the clear zone formation of Gram positive and negative bacteria culture grown on nutrient agar. The optimum acetic acid concentration in nano-chitosan production was 0.43% because it was able to inhibit the growth of bacteria on the tilapia fillet and resulted in good consumer acceptance even when tilapia fillet was soaked up to 25 minutes in the nano-chitosan solution.
The influence inter-day colorimetric method in quantification of chicken meat’s total cholesterol with lipid extraction -saponification pretreatment
Authors: Laila U , Putra T J 
Published: October 2019

AbstractUnskinned chicken meat’s cholesterol consisting of thigh, breast, and wing meat were determined inter-daily by ferric chloride reagent spectrophotometric methods. The pretreatments before cholesterol analysis were conducted which involved with lipid extraction, saponification, and subsequent extraction of unsaponified matter. Afterwards, spectrophotometry was carried out. For understanding precision of quantification, the total cholesterol was measured inter-daily in which the difference of measurement time were one day for each same part of chicken meat. The research showed unskinned thigh meat had significantly higher total cholesterol 186.19 mg/100 g as compared to breast, and wing meat (156.05 mg/100g and 135.38 mg/100 g; p<0.01 for both). Inter-daily spectrophotometry analysis insignificantly affected on thigh, breast, and wing meat’s cholesterol content. This method can become solution for analysis time limitation problem in cholesterol spectrophotometric analysis.
Effects of health consciousness and environmental attitude on intention towards organic food purchase
Authors: Kusumaningsih D , Irianto H , Antriyandarti E 
Published: October 2019

Abstract
The objective of this research is to study the effect of health consciousness and environmental attitude towards intention to purchase organic food. The research is using Theory of Planned Behaviour (TPB). The study variables are health consciousness, environmental attitude, availability, subjective norm, attitude and intention to purchase organic foods. Survey method is applied, with the 150 respondents intending to purchase organic food in Surakarta. Structural equation model (SEM) is applied to analyze data. The result shows that health consciousness and environmental attitude are the determinants of an individual’s positive attitude to purchase organic food. In addition, the attitude and subjective norm are also being the determinants of intention to purchase organic food. The study suggests that increasing organic food consumption can be achieved by increasing the knowledge about the benefit of organic food on health and environmental maintenance of potential consumers.
Thermal Loading Effect During Machining of Borosilicate Glass Using ECDM Process
Authors: Arya R K , Dvivedi A 
Published: October 2019

Abstract
Glass has unique properties for micro fluidic, MEMS and optical applications. However, poor machinability of glass materials limit its applications. ECDM process is one of the most utilized micro machining process for fabrication of glass micro products. In ECDM thermal energy of discharges utilizes to provide thermal loading for removal of material. However, controlled thermal loading requires for machining of glass materials owing to its poor thermal conductivity. High thermal stresses may develop at high thermal loading, which leads to uncontrolled facture of glass material. Therefore, a thorough discussion is needed to understand the effect of thermal loading on glass materials. In this study, the experiments are conducted to investigate the thermal loading effect on borosilicate glass during ECDM process. Also, an analytical model is developed to estimate the induced thermal stress during ECDM process. Theses thermal stresses are discussed during drilling of micro hole on work material. After discussion three zones are identified for machining of borosilicate glass using ECDM process, wherein zone-II (i.e. from 44 V to 52 V applied voltage) is identified for safe machining.
A Novel Coupler Design and Analysis with Shielding Material Tests for a CPT System of Electric Vehicles Based on Electromagnetic Resonant Coupling
Authors: Duan J , Wang W 
Published: October 2019

Abstract
In this paper, a contactless power transfer (CPT) system using a novel geometrically enhanced energy transfer coupler with three different shielding materials has been built and analysed, along with the evaluations from aspects of electromagnetics and RMS power transmitting based on electromagnetic resonant coupling. A CPT system design improvement with the proposed H-shape ferromagnetic cores and the combined semi-enclosed passive electromagnetic shielding methods have been investigated in terms of generated electromagnetic field characteristics, system power transfer ratings, system efficiency optimization and performances of shielding materials. The results have shown that, across the range of operating frequency of the CPT system, aluminium shielding as a metallic material method could deliver better overall CPT system performance than other two ferromagnetic materials, steel 1010 and ferrite. In addition, the coupler prototype design limitations, misalignment tolerance and the passive shielding design considerations including distance between windings and inner surfaces of shielding shells have been discussed.
Modeling the Electrical Conductivity of Ni1-xFex-SDC Composite Anode by Using PSO-SVR
Authors: Tang J. L , Yang R. F 
Published: October 2019

Abstract
Studies have shown that numerous indexes affecting the electrical conductivity of Solid Oxide Fuel Cell (SOFC) anode. In order to improve performance of SOFC, it is advantageous to have a model with which one can modeling the electrical conductivity at different operating conditions. In this study, a model utilizing support vector regression (SVR) approach combined with particle swarm optimization (PSO), was proposed to modeling the electrical conductivity of Ni1-xFex(0⩽x⩽0.25)-Ce0.85Sm0.15O2-δ(SDC) composite anode. The test result by PSO-SVR show that the root mean square error (RMSE) of test samples is 3.79, mean absolute percentage error (MAPE) of test samples is 0.82%, multiplecorrelation correlation coefficients (R
2) of test samples is 1.00, which is satisfied with the engineering demand. The result of this investigation provides that PSO-SVR is an effective tool for modeling the electrical conductivity of Ni1-xFex-SDC composite anode.
Analysis of Allowable Assembly Forces for Composite Laminates
Authors: Zhang Tingyu , Zhang Chong , Zhao Jianshe , Guo Anru 
Published: October 2019

Abstract
Composite structures have been widely used in aerospace field due to their low density, high strength, and high stiffness to weight ratio. In the aerospace field, composite laminates are widely used in the skin of the airplane. Due to the complexity of the composite molding process, and the difficulty of machining composite laminates, the manufacturing precision of the skin is usually not very high. Hence the assembly force is applied to the skin to ensure the composite laminates fit the framework in the assembly process of an airplane. However, too large assembly force leads to the assembly out of tolerance owning to the over deformation and leads to the stress of the skin out of tolerance. Therefore, this paper proposes a method of analyzing the allowable assembly force. With the help of mechanics and physics, the mechanical relationship between the assembly forces and the deformation of a skin is modeled. On the basis of the model and the experimental date of a skin assembly process, the mathematical relationship between the assembly forces and the deformation of the skin is established. The allowable assembly forces are determined based on the mathematical relationship and the allowable deformation. This paper provides an optimization methodology of assembly force optimization.
Effects of Process Parameters on Cutting Force and Tool Temperature in Drilling Based on Finite Element Simulation
Authors: Gao Yuan , Wang Jie , Wang Qi , Li Xin , Zhang Tingyu , Zhong Yang 
Published: October 2019

Abstract
Cutting force and tool temperature play significant roles in the drilling process because they are strongly related to drilling performance such as surface roughness, tool wear and tool breakage etc. For difficult-to-machine materials, like titanium alloys, the drilling operation is considered to be complex due to their mechanical and thermal properties, and it is important to find suitable process parameters to avoid too large cutting force or too high tool temperature, which may deteriorate the drilling performance. This paper is dedicated to studying the effects of process parameters, including spindle speed, feed rate and helix angle, on cutting force and tool temperature in drilling based on finite element simulation. A series of drilling simulations are carried out to generate the simulated cutting force and tool temperature data under different drilling conditions. By data fitting, the steady cutting force and tool temperature are predicted. Based on the Taguchi method, the effects of process parameters on steady cutting force and tool temperature are analysed. This paper can provide a basis for suitable selection of process parameters in drilling.
Machining Grooves in Silica Glass by Using Picosecond Lasers
Authors: Jiao J K , Zhang J A , Zhang W W , Popvawe R 
Published: October 2019

Abstract
A picosecond laser with 1064nm wavelength was used to machine grooves in fused silica in this paper. A surface texturing method was applied to increase the laser absorption. The relationship between the width, the depth of the groove and the laser parameters such as laser power, scanning speed, number of scanning cycles was studied. The machining quality of the groove was detected by the laser scanning confocal microscopy. It showed that there were no micro-cracks on the grooving surface, and the surface roughness Ra<1.6um. The width, the depth and the shape of the groove could be controlled accurately by changing the laser parameters. And, a “V-shape” groove with 1mm width, 1mm depth was obtained with the as the frequency, the laser power, the scanning velocity and the number scanning cycle was fixed at 400KHz, 141W, 5000mm/s and 12, respectivity.
MetumpX—a metabolomics support package for untargeted mass spectrometry
Authors: Wajid Bilal , Iqbal Hasan , Jamil Momina , Rafique Hafsa , Anwar Faria 
Published: October 2019

Abstract

Motivation
Metabolomics is a data analysis and interpretation field aiming to study functions of small molecules within the organism. Consequently Metabolomics requires researchers in life sciences to be comfortable in downloading, installing and scripting of software that are mostly not user friendly and lack basic GUIs. As the researchers struggle with these skills, there is a dire need to develop software packages that can automatically install software pipelines truly speeding up the learning curve to build software workstations. Therefore, this paper aims to provide MetumpX, a software package that eases in the installation of 103 software by automatically resolving their individual dependencies and also allowing the users to choose which software works best for them.

Results
MetumpX is a Ubuntu-based software package that facilitate easy download and installation of 103 tools spread across the standard metabolomics pipeline. As far as the authors know MetumpX is the only solution of its kind where the focus lies on automating development of software workstations.

Availability and implementation
https://github.com/hasaniqbal777/MetumpX-bin.

Supplementary information
Supplementary data are available at Bioinformatics online.
dbInDel: a database of enhancer-associated insertion and deletion variants by analysis of H3K27ac ChIP-Seq
Authors: Huang Moli , Wang Yunpeng , Yang Manqiu , Yan Jun , Yang Henry , Zhuang Wenzhuo , Xu Ying , Koeffler H Phillip , Lin De-Chen , Chen Xi 
Published: October 2019

Abstract

Summary
Cancer hallmarks rely on its specific transcriptional programs, which are dysregulated by multiple mechanisms, including genomic aberrations in the DNA regulatory regions. Genome-wide association studies have shown many variants are found within putative enhancer elements. To provide insights into the regulatory role of enhancer-associated non-coding variants in cancer epigenome, and to facilitate the identification of functional non-coding mutations, we present dbInDel, a database where we have comprehensively analyzed enhancer-associated insertion and deletion variants for both human and murine samples using ChIP-Seq data. Moreover, we provide the identification and visualization of upstream TF binding motifs in InDel-containing enhancers. Downstream target genes are also predicted and analyzed in the context of cancer biology. The dbInDel database promotes the investigation of functional contributions of non-coding variants in cancer epigenome.

Availability and implementation
The database, dbInDel, can be accessed from http://enhancer-indel.cam-su.org/.

Supplementary information
Supplementary data are available at Bioinformatics online.
BiomeNet: a database for construction and analysis of functional interaction networks for any species with a sequenced genome
Authors: Kim Eiru , Bae Dasom , Yang Sunmo , Ko Gunhwan , Lee Sungho , Lee Byungwook , Lee Insuk 
Published: October 2019

Abstract

Motivation
Owing to advanced DNA sequencing and genome assembly technology, the number of species with sequenced genomes is rapidly increasing. The aim of the recently launched Earth BioGenome Project is to sequence genomes of all eukaryotic species on Earth over the next 10 years, making it feasible to obtain genomic blueprints of the majority of animal and plant species by this time. Genetic models of the sequenced species will later be subject to functional annotation, and a comprehensive molecular network should facilitate functional analysis of individual genes and pathways. However, network databases are lagging behind genome sequencing projects as even the largest network database provides gene networks for less than 10% of sequenced eukaryotic genomes, and the knowledge gap between genomes and interactomes continues to widen.

Results
We present BiomeNet, a database of 95 scored networks comprising over 8 million co-functional links, which can build and analyze gene networks for any species with the sequenced genome. BiomeNet transfers functional interactions between orthologous proteins from source networks to the target species within minutes and automatically constructs gene networks with the quality comparable to that of existing networks. BiomeNet enables assembly of the first-in-species gene networks not available through other databases, which are highly predictive of diverse biological processes and can also provide network analysis by extracting subnetworks for individual biological processes and network-based gene prioritizations. These data indicate that BiomeNet could enhance the benefits of decoding the genomes of various species, thus improving our understanding of the Earth’ biodiversity.

Availability and implementation
The BiomeNet is freely available at http://kobic.re.kr/biomenet/.

Supplementary information
Supplementary data are available at Bioinformatics online.