SCOPUS 2015-2019

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Protease producing bacteria isolated from mangrove forest sediments in Eastern Thailand: Screening, identification and optimization
(Global Science Publications, 2015) T. Foophow; J. Tangjitjaroenkun; T. Foophow; Department of Food Processing and Technology, School of Culinary Arts, Suan Dusit University, Bangkok, Thailand; email: tita_foo@dusit.ac.th
Proteases from microorganisms with highly specific activities and high resistance to salt have been an increasing interest because they have potential uses in various industrial fields, mainly in the food industry and detergent. In this research, protease producing bacteria from the sediments of three mangrove forests in Chanthaburi were isolated, screened and identified. 46 isolates exhibited proteolytic activity on SKA containing 3%NaCl. High bacterial diversity was found in sediments from Mangrove Forest Resources Development Station 2, Thason. The results of 16S rRNA sequence analysis showed that 45 isolates were related to Bacillus sp., whereas only isolate TS32 was related to Rhodococcus sp. 13 isolates exhibited high proteolytic activity based on a clear zone diameter of more than 10 mm. They can be divided into 3 groups: related to B. aquimaris TF-12, B. aryabhattai B8W22 and B. gibsonii DSM8722. Among these isolated bacteria, isolate KB111, similar to strain TF-12, exhibited maximum enzymatic activity (47�1.03 U/mL). The optimum temperature and pH for its activity were 40�C and 7.0, respectively. According to the effect of salinity, isolate KB111 is a moderately halophilic bacteria. In Chanthaburi, mangrove forest sediments have high diversity of protease-producing bacteria; these bacteria have appropriate characteristics for application in industrial fields. � Global Science Publications.
A combined effect of plasmon energy transfer and recombination barrier in a novel TiO2/MgO/Ag working electrode for dye-sensitized solar cells
(Hindawi Limited, 2015) Chanu Photiphitak; Pattana Rakkwamsuk; Pennapa Muthitamongkol; Chanchana Thanachayanont; C. Thanachayanont; National Metal and Material Technology Center, 114, Thailand Science Park, Klong Luang, Pathumthani, Phaholyothin Road, Klong 1, 12120, Thailand; email: chanchm@mtec.or.th
Novel TiO2/MgO/Ag composite electrodes were applied as working electrodes of dye-sensitized solar cells (DSSCs). The TiO2/MgO/Ag composite films were prepared by dip coating method for MgO thin films and photoreduction method for Ag nanoparticles. The MgO film thicknesses and the Ag nanoparticle sizes were in ranges of 0.08-0.46 nm and 4.4-38.6 nm, respectively. The TiO2/MgO/Ag composite films were characterized by X-ray diffraction, scanning electron microscopy, and transmission electron microscopy. The TiO2/MgO/Ag composite electrodes were sensitized by immersing in a 0.3 mM of N719 dye solution and fabricated for conventional DSSCs. J-V characteristics of the TiO2/MgO/Ag DSSCs showed that the MgO film thickness of 0.1 nm and the Ag nanoparticle size of 4.4 nm resulted in maximum short circuit current density and efficiency of 8.6 mA/cm2 and 5.2%, respectively. Electrochemical Impedance Spectroscopy showed that such values of short circuit current density and efficiency were optimal values obtained from plasmon energy transfer by 4.4 nm Ag nanoparticles and recombination barrier by the ultrathin MgO film. � 2015 Chanu Photiphitak et al.
Business investment strategy of SME restaurants
(Academic Journals Inc., 2015) Nattada Srimuk; Therdchai Choibamroong
The aim of this research is to develop a business investment strategy in support of SME restaurants in Yaowarach area, Bangkok, Thailand, using the qualitative method of in-depth interviews with key management personnel, such as business owners, managers. The key informants, for in-depth interviews, included thirty-one entrepreneurs--twenty-nine sole propritopship business owners and two limited partnership owners, selected by purposive sampling of twelve entrepreneurs listed by Sampantawong District officials and Sampantawong District officials as well as the Crown Property Bureau official. Research Findings: Strategic investments improved investment efficiency on three levels: (1) Corporate strategy; Businesses used proactive strategies aimed to increase market share from diversification in which a business, limited by physical space would lead to branches elsewhere. Operators of two restaurants planned expansion and implemented expansion-- a long-term strategy for growth, required in order to keep the businesses expanding market share. (2) Businesses strategy: Strategies were formulated aiming at differentiation focus with product diversification. Additionally, operators included strategies to rectify product development issues and differentiation by focusing on product diversification and developing innovative products or services, different from the competition. Cost management, including, strategies for analyzing production costs were implemented and grouped together to increases bargaining power with manufacturers, given lower raw material costs. The strategy included maintaining existing customers, given each restaurant SME existing client base. New marketing strategies included lower food prices and discount coupons for dining, the next time, etc. (3) Functional Strategy: The operational level is used to achieve the objectives of the organization. Furthermore, strategy must cover all departments within the organization to collaborate for success, by focusing on operational units. The China Town restaurants should have a financial plan. Investment plan analyze problems and determine financial investment responsibility in the future. According to the investment plan in place, monitoring, evaluation and improvement are continuous. The preparation of the income statement accounts control expenses using the budget as planned. � 2015 Academic Journals Inc.
Effect of alumina content and surface area of acid-activated kaolin on bleaching of rice bran oil
(Springer Verlag, 2015) Lei Lei Aung; Emmanuel Tertre; Parinda Suksabye; Niramon Worasith; Paitip Thiravetyan
This study investigated the effect of kaolin acid activation on alumina losses, surface area changes and oil bleaching performance. Ground kaolin was treated with hydrochloric or citric acid, and bleaching tests were performed on rice bran oil. The adsorption studies showed that the optimal bleaching of ~83 or ~81 % were achieved by activation with 0.5 M hydrochloric or citric acid, respectively, whereas bleaching with a commercial clay was ~82 %. The highest bleaching value was not associated with the maximum clay surface area or porosity. X-ray fluorescence showed that alumina contents of 31-34 % were suggestive for optimum bleaching depending on the different acid used. Treating ground kaolin with the same hydrochloric acid strength by varying the acid concentration and clay/acid ratio also confirmed that the best Al3+ content was ~32 %, and a value lower than one indicated the extensively destruction of kaolinite proportions leading to a decrease in its bleaching capacity, even though it had the maximum surface area. The decrease in capacity was due to the reduction of alumina content, and the parallel formation of high amorphous silica was favorable for the adsorption of anionic pigments, such as chlorophyll-a. � 2014 AOCS.
Effect of EMA and antioxidants on properties of thermoplastic starch blown films
(Institute of Physics Publishing, 2015) P. Threepopnatkul; C. Kulsetthanchalee; A. Sittattrakul; E. Kaewjinda
The objectives of this study were to investigate the effect of poly(ethylene-co-methyl acrylate) (EMA) at 10, 30 and 50 wt% on the morphological properties, moisture sorption, water vapor permeability and biodegradability of thermoplastic starch (TPS). Urea and formamide were used as a mixed plasticizer. In addition, the effect of antioxidants namely, 3,5-di-tert-butyl-4-hydroxyhydrocinnamate (DTBH), butylated hydroxytoluene (BHT) and bis(octadecyl)hydroxylamine (BOH) at 1 wt% on the properties of TPS/EMA film was investigated. TPS/EMA films were produced by a blown film molding machine and characterized by scanning electron microscropy, moisture sorption, water vapor permeability and biodegradability measurement. Results found that the increment of EMA content in the TPS matrix could improve the water sorption, water vapor permeability and biodegradability properties of TPS/EMA films. For biodegradation, the weight loss of the blended films was directly proportional to TPS content. Regarding the antioxidants effect, the water vapor permeability of TPS/EMA films containing DTBH was higher than the one with BOH and BHT. However, the antioxidants contributed little to the biodegradability of TPS/EMA films and had no effect on the moisture sorption of TPS/EMA films.
Renewable cellulose source: Isolation and characterisation of cellulose from rice stubble residues
(2015) Pattrathip Rodsamran; Rungsinee Sothornvit; R. Sothornvit; Department of Food Engineering, Faculty of Eng. at Kamphaengsaen/PHTIC/Center of Excell. for Agricultural and Food Machinery, Center of Advanced Studies in Industrial Technology, Kasetsart University, Nakhonpathom, Kamphaengsaen Campus, 73140, Thailand; email: fengrns@ku.ac.th
The substantial amount of agricultural waste associated with rice stubble is a critical issue in Thailand as it still contains a high amount of cellulose. Thus, the conditions for cellulose isolation from Thai rice stubble were developed. It was found that cellulose at a higher NaOH concentration (10%) or higher isolation temperature provided a higher whiteness index (WI) value and _-cellulose content after 3 h of isolation process. Extraction using 10% NaOH at 55 �C for 3 h was determined as optimum conditions for the isolation of cellulose from rice stubble. The removal of most hemicelluloses and lignin was confirmed by Fourier transform infrared spectroscopy. The yield, WI value and _-cellulose content of rice stubble cellulose were 30.67%, 75.69% and 90.05%, respectively. Cellulose from rice stubble is suitable for use as fibre or for the synthesis of cellulose derivatives that are widely used in food and pharmaceutical products. � 2015 Institute of Food Science and Technology.
Angelica sinensis (Umbelliferae) with proven repellent properties against Aedes aegypti, the primary dengue fever vector in Thailand
(Springer Verlag, 2015) D. Champakaew; A. Junkum; U. Chaithong; A. Jitpakdi; D. Riyong; R. Sanghong; J. Intirach; R. Muangmoon; A. Chansang; B. Tuetun; B. Pitasawat
Botanical resources with great diversity in medicinal and aromatic plants are a rich and reliable source for finding insect repellents of plant origin, which are widely popular among today�s consumers. Although some herbal-based repellents have been proven comparable to or even better than synthetics, commercially available natural repellents generally tend to be expensive, with short-lived effectiveness. This critical flaw leads to ongoing research for new and effective repellents, which provide longer protection against vector and nuisance-biting insects, while remaining safe, user friendly, and reasonably priced. This study aimed to evaluate the repellent activity of plant-derived products against the primary dengue vector, Aedes aegypti, by following the human bait technique of World Health Organization guidelines. Preliminary laboratory screening tests for repellency of 33 plant species clearly demonstrated Angelica sinensis as the most effective repellent from each kind of extracted product, with its essential oil and ethanolic extract having median complete protection times of 7.0�h (6.0�7.5) and 2.5�h (2.0�2.5), respectively. Due to its low yield (0.02�%), pungent smell, and little cause of irritation, A. sinensis essential oil did not qualify as a candidate for further repellent assessment. However, subsequent extractions of A. sinensis with different organic solvents of increasing polarity provided four extractants with varying degrees of repellency against A. aegypti. The hexane extract of A. sinensis provided excellent repellency, with a median complete protection time of 7.5�h (6.5�8.5), which was longer than that of ethanol (2.5, 2.0�2.5�h), acetone (1.75, 0.5�2.5�h), and methanol extracts (0.5, 0�1.0�h). By being the most effective product, A. sinensis hexane extract gave significant protection comparable to that of its essential oil and the standard synthetic repellent, N,N-diethyl-3-methylbenzamide (DEET: 6.25, 5.0�6.5�h). Qualitative gas chromatography/mass spectrometry analysis demonstrated the presence of phthalides and phthalates, including 3-N-butylphthalide, butylidenephthalide, ligustilide, and di-iso-octyl phthalate, as the principal constituents in A. sinensis products. The success of A. sinensis products, particularly that of hexane extract, has proved their potential as bioactive candidates in the next step for developing and producing alternative natural repellents with commercial aspirations. � 2015, Springer-Verlag Berlin Heidelberg.
A forecasting tool for predicting Australia�s domestic airline passenger demand using a genetic algorithm
(Departamento de Ciencia e Tecnologia Aeroespacial, 2015) Panarat Srisaeng; Glenn Baxter; Steven Richardson; Graham Wild; G. Wild; RMIT University, School of Aerospace, Mechanical, and Manufacturing Engineering, Melbourne, 124 La Trobe Stm, 3000, Australia; email: graham.wild@rmit.edu.au
This study has proposed and empirically tested for the first time genetic algorithm optimization models for modelling Australia�s domestic airline passenger demand, as measured by enplaned passengers (GAPAXDE model) and revenue passenger kilometres performed (GARPKSDE model). Data was divided into training and testing datasets; 74 training datasets were used to estimate the weighting factors of the genetic algorithm models and 13 out-of-sample datasets were used for testing the robustness of the genetic algorithm models. The genetic algorithm parameters used in this study comprised population size (n): 200; the generation number: 1,000; and mutation rate: 0.01. The modelling results have shown that both the quadratic GAPAXDE and GARPKSDE models are more accurate, reliable, and have greater predictive capability as compared to the linear models. The mean absolute percentage error in the out of sample testing dataset for the GAPAXDE and GARPKSDE quadratic models are 2.55 and 2.23%, respectively. � 2015, Journal of Aerospace Technology and Management. All Rights Reserved.
Erratum to: Effect of alumina content and surface area of acid-activated kaolin on bleaching of rice bran oil
(Springer Verlag, 2015) Lei Lei Aung; Emmanuel Tertre; Parinda Suksabye; Niramon Worasith; Paitip Thiravetyan; P. Thiravetyan; Division of Biotechnology, School of Bioresources and Technology, King Mongkut's University of Technology Thonburi, Bangkhuntien, Bangkok, 10150, Thailand; email: paitip.thi@kmutt.ac.th
[No abstract available]
Chemical Components of Four Essential Oils in Aromatherapy Recipe
(SAGE Publications Inc., 2015) Sarin Tadtong; Narisa Kamkaen; Rith Watthanachaiyingcharoen; Nijsiri Ruangrungsi; N. Kamkaen; Faculty of Pharmacy, Rangsit University, PathumThani, Muang district, 10200, Thailand; email: narisa.kamkaen@gmail.com; N. Kamkaen; Faculty of Science and Technology, Suan Dusit Rajabhat University, Dusit, 10300, Thailand; email: narisa.kamkaen@gmail.com
This study focused on characterization of the chemical components of an aromatherapy recipe. The formulation consisted of four blended essential oils; rosemary oil, eucalyptus oil, pine oil and lime oil (volume ratio 6: 2: 1: 1). The single and combination essential oils were identified by gas chromatography-mass spectrometry (GC-MS). The analysis of GC-MS data revealed that several components exist in the mixture. The five most important components of the blended essential oils were 1,8-cineole (35.6 %), _-pinene (11.1 %), limonene (9.6 %), camphor (8.4 %), and camphene (6.6 %). The main components of rosemary oil were 1,8-cineole (37.3 %), _-pinene (19.3 %), camphor (14.7 %), camphene (8.8 %), and _-pinene (5.5 %); of eucalyptus oil 1,8-cineole (82.6 %) followed by limonene (7.4 %), o-cymene (4.3 %), _-terpinene (2.7 %), and _-pinene (1.5 %); of pine oil terpinolene (26.7 %), _-terpineol (20.50 %), 1-terpineol (10.8 %), _-pinene (6.0 %), and _-terpineol (5.3 %); and of lime oil limonene (62.9 %), _-terpinene (11.5 %), _-terpineol (7.6 %), terpinolene (6.0 %), and _-terpinene (2.8 %). The present study provided a theoretical basis for the potential application of blended essential oils to be used as an aromatherapy essential oil recipe. GC-MS serves as a suitable and reliable method for the quality control of the chemical markers. � 2015 SAGE Publications Inc.
Multi-wavelength _erenkov radiations in a microring resonator in combination with two gratings
(Springer Verlag, 2015) Rangsan Jomtarak; Preecha P. Yupapin
In this paper, the _erenkov radiation of light pulse in a microring and gratings is simulated and investigated. The system design consists of a two-defect grating incorporating a microring, connected with a uniform grating. In simulation, the continuous wave (CW) light pulse with wavelength centered at 1.55 _m is input into the microring device via the two-defect grating. The resonant outputs from the two-defect grating propagate through the microring and uniform grating, where the time delays of those two input pulses with different wavelengths through the system are distinguished by the output uniform grating. From the obtained resonant output pulses, we find that the red-shifted and blue-shifted _erenkov pulses are observed. In applications, such a proposed system can be used to form two different optical delay pulses, in which the change in _erenkov radiation of them, i.e., time delay within a microring device system, can be useful for _erenkov radiation imaging and sensing applications. � 2015, Tianjin University of Technology and Springer-Verlag Berlin Heidelberg.
A correlation analysis between sentimental comment and numerical response in students' feedback
(Asian Research Publishing Network, 2015) Phuripoj Kaewyong; Anupong Sukprasert; Naomie Salim; Fatin Aliah Phang; P. Kaewyong; Information Technology Department, Suan Dusit University, Thailand; email: phuripoj@yahoo.com
This paper aims to study a qualitative measuring of students' comments using sentiment analysis to teacher evaluation and investigate its qualitative analysis. A small dataset of students' feedbacks was collected from the public website and was utilized in the experimental. We performed the lexicon based sentiment analysis to identify sentiment word and determine overall sentiment polarity of students' comment into positive and negative classes based on Opinion Lexicon automatically. A comparison between overall sentiment scores and numerical response scores of teacher evaluation aspects were evaluated and plotted into graphs in order to compare the relationship between each pair of two variables. Especially, we applied the statistical techniques using Pearson's correlation and Spearman's rank to confirm these visual correlation results. The experimental results suggested that there is a significant correlation between overall sentiment scores from its qualitative analysis and numerical response scores of teacher evaluation aspects. Based on this, it might be possible to convert from qualitative to quantitative type of teacher evaluation by performing lexicon based sentiment analysis.
Remarkable repellency of Ligusticum sinense (Umbelliferae), a herbal alternative against laboratory populations of Anopheles minimus and Aedes aegypti (Diptera: Culicidae)
(BioMed Central, 2015) Rukpong Sanghong; Anuluck Junkum; Udom Chaithong; Atchariya Jitpakdi; Doungrat Riyong; Benjawan Tuetun; Daruna Champakaew; Jitrawadee Intirach; Roongtawan Muangmoon; Arpaporn Chansang; Benjawan Pitasawat; A. Junkum; Department of Parasitology, Faculty of Medicine, Chiang Mai University, Chiang Mai, 50200, Thailand; email: anuluck.j@cmu.ac.th
Abstract Background: For personal protection against mosquito bites, user-friendly natural repellents, particularly from plant origin, are considered as a potential alternative to applications currently based on synthetics such as DEET, the standard chemical repellent. This study was carried out in Thailand to evaluate the repellency of Ligusticum sinense hexane extract (LHE) against laboratory Anopheles minimus and Aedes aegypti, the primary vectors of malaria and dengue fever, respectively. Methods: Repellent testing of 25% LHE against the two target mosquitoes; An. minimus and Ae. aegypti, was performed and compared to the standard repellent, DEET, with the assistance of six human volunteers of either sex under laboratory conditions. The physical and biological stability of LHE also was determined after keeping it in conditions that varied in temperature and storage time. Finally, LHE was analysed chemically using the qualitative GC/MS technique in order to demonstrate a profile of chemical constituents. Results: Ethanol preparations of LHE, with and without 5% vanillin, demonstrated a remarkably effective performance when compared to DEET in repelling both An. minimus and Ae. aegypti. While 25% LHE alone provided median complete-protection times against An. minimus and Ae. aegypti of 11.5 (9.0-14.0) hours and 6.5 (5.5-9.5) hours, respectively, the addition of 5% vanillin increased those times to 12.5 (9.0-16.0) hours and 11.0 (7.0-13.5) hours, respectively. Correspondingly, vanillin added to 25% DEET also extended the protection times from 11.5 (10.5-15.0) hours to 14.25 (11.0-18.0) hours and 8.0 (5.0-9.5) hours to 8.75 (7.5-11.0) hours against An. minimus and Ae. aegypti, respectively. No local skin reaction such as rash, swelling or irritation was observed during the study period. Although LHE samples kept at ambient temperature (21-35�C), and 45�C for 1, 2 and 3 months, demonstrated similar physical characteristics, such as similar viscosity and a pleasant odour, to those that were fresh and stored at 4�C, their colour changed from light- to dark-brown. Interestingly, repellency against Ae. aegypti of stored LHE was presented for a period of at least 3 months, with insignificantly varied efficacy. Chemical analysis revealed that the main components of LHE were 3-N-butylphthalide (31.46%), 2, 5-dimethylpyridine (21.94%) and linoleic acid (16.41%), constituting 69.81% of all the extract composition. Conclusions: LHE with proven repellent efficacy, no side effects on the skin, and a rather stable state when kept in varied conditions is considered to be a potential candidate for developing a new natural alternative to DEET, or an additional weapon for integrated vector control when used together with other chemicals/measures. � 2015 Sanghong et al.
The GH67 _-glucuronidase of Paenibacillus curdlanolyticus B-6 removes hexenuronic acid groups and facilitates biodegradation of the model xylooligosaccharide hexenuronosyl xylotriose
(Elsevier Inc., 2015) Krisna Septiningrum; Hiroshi Ohi; Rattiya Waeonukul; Patthra Pason; Chakrit Tachaapaikoon; Khanok Ratanakhanokchai; Junjarus Sermsathanaswadi; Lan Deng; Panida Prawitwong; Akihiko Kosugi
4-O-Methylglucuronic acid (MeGlcA) side groups attached to the xylan backbone through _-1,2 linkages are converted to hexenuronic acid (HexA) during alkaline pulping. _-Glucuronidase (EC 3.2.1.139) hydrolyzes 1,2-linked MeGlcA from xylooligosaccharides. To determine whether _-glucuronidase can also hydrolyze HexA-decorated xylooligosaccharides, a gene encoding _-glucuronidase (AguA) was cloned from Paenibacillus curdlanolyticus B-6. The purified protein degraded hexenuronosyl xylotriose (_X3), a model substrate prepared from kraft pulp. AguA released xylotriose and HexA from _X3, but the Vmax and kcat values for _X3 were lower than those for MeGlcA, indicating that HexA side groups may affect the hydrolytic activity. To explore the potential for biological bleaching, _X3 degradation was performed using intracellular extract from P. curdlanolyticus B-6. The intracellular extract, with synergistic _-glucuronidase and _-xylosidase activities, degraded _X3 to xylose and HexA. These results indicate that _-glucuronidase can be used to remove HexA from _X3 derived from pulp, reducing the need for chemical treatments in the pulping process. � 2015 Elsevier Inc.
Co-production of poly(l-lactide)-degrading enzyme and raw starch-degrading enzyme by Laceyella sacchari LP175 using agricultural products as substrate, and their efficiency on biodegradation of poly(l-lactide)/thermoplastic starch blend film
(Elsevier Ltd, 2015) Thanasak Lomthong; Srisuda Hanphakphoom; Rangrong Yoksan; Vichien Kitpreechavanich
The co-production of poly-(l-lactide)-degrading enzyme and raw starch-degrading enzyme by the thermophilic filamentous bacterium Laceyella sacchari LP175 in liquid medium using low-cost agricultural crops as substrates was investigated. Statistical mixture design experiments indicated that 5g of raw material - consisting of 2.35gL-1 cassava chips and 2.65gL-1 soybean meal in a suspension of 2.0gL-1 K2HPO4 and 1.0gL-1 KH2PO4 - gave the highest production of both enzymes when the culture was grown at 50�C for 24h cultivation. Addition of 1.0gL-1 of poly-(l-lactide) powder and 1.0gL-1 cassava starch to the medium increased poly-(l-lactide)-degrading enzyme and raw starch-degrading enzyme, respectively. Response surface methodology by central composite design found that the optimized concentration of 0.52gL-1 poly(l-lactide) powder and 3.34gL-1 cassava starch increased poly-(l-lactide)-degrading enzyme and raw starch-degrading enzyme activities up to 68.8UmL-1 and 86.1UmL-1, respectively. The 2% poly-(l-lactide)/thermoplastic starch (PLLA/TPS) blend (50:50) film was degraded up to 99.7% of weight loss by the crude enzyme at an initial pH of 9.0 for 4h. The high efficiency on biodegradation of poly-(l-lactide)/thermoplastic starch blend polymer by the obtained mixed enzymes from cheap and abundant agricultural products could be applied to reduce global environment from non-biodegradable materials. � 2015 Elsevier Ltd.
QoS based service selection in cloud environment: A review
(International Center for Scientific Research and Studies, 2015) Wachana Khowfa; Onsiri Silasai; Chatchada Kaewpruksapimon
Cloud is generally used as an alternative options that provide an on - demand services to customer and to extends their requirement with the several services published in cloud as well as without the concern of cost and security management, especially, in the era of big data. However, the growing number of available services causes an increasing in the number of similar services, furthermore, the only single service resource cannot complete the requirement from user. Therefore, it is an important to issue the composition service. To composite services together, the need of method to evaluate and select the best service candidate from the service's pool called service selection is vital. In the process of extraction the appropriate candidate, the Analytic Hierarchy Process (AHP), one of the most popular techniques of the Multi - Criteria Decision Making (MCDM) is mostly used to evaluate in multiple criteria situation. The Quality of Service (QoS) which is a numeric value available in each service is applied with AHP to resolve the problem of non-functional service selection. A result of this review indicates that the QoS based service selection with AHP can efficiency support the service evaluation and selection process. Moreover, it can be focus on applying other algorithms to enhance the performance of service selecting in cloud for a future work.
Utilization of agricultural residues: De-oiled organic rice bran as adsorbent of moisturizers for cosmetic products
(Chemical Publishing Co., 2015) P. Dechprasittichok; C. Sontag; J. Tongtan; S. Luachan; P. Dechprasittichok; Department of Chemical Technology, Suan Dusit Rajabhat University, Bangkok, Thailand; email: pornpassanan_dac@dusit.ac.th
The objective of this research is to study the adsorption of two types of moisturizers in cosmetic, urea and glycerin, by de-oiled organic rice bran. Urea and glycerin are moisturizers which can enhances the water-binding capacity on the skin. The samples of the de-oiled organic rice bran were obtained from Surin province of Thailand. The samples were pretreated with sodium hydroxide. In equilibrium time experiments, 0.5 g of dried de-oiled organic rice bran were immersed into 50 mL of urea or glycerin 1 % wt. solutions and shaken for various times followed by the determination of remaining moisturizer in the solution. To find the adsorption capacity of moisturizers by de-oiled organic rice bran, 0.5 g of dried de-oiled organic rice bran were immersed into 50 mL of urea or glycerin solutions with different concentration levels (1, 2, 3, 4, 5, 10, 15 and 30 g 100 mL1). The solutions were shaken for 1,440 min. The equilibrium time for urea and glycerin was achieved at 40 and 60 min., respectively. The de-oiled organic rice bran could adsorb higher amounts of urea than glycerin. The adsorption isotherm could be well described by the Freundlich isotherm model. The findings of this study would be beneficial to evaluate the suitability and efficiency of adsorption of moisturizers by de-oiled organic rice bran for future application such as body scrub.
Effect of chemical treatments to reduce the bitterness and drying on chemical physical and functional properties of dietary fiber pomelo powder from Citrus grandis (L.) Osbeck Albedo
(Kasetsart University, 2015) Suwanna Pichaiyongvongdee; Boonyakrit Rattanapun
The pomelo albedo was selected from three cultivars�Kao Nampung (KNP), Thongdee (TD) and Kao Yai (KY). KNP was a suitable cultivar for preparing dietary fiber powder because it had high crude fiber content and the limonin and naringin contents were lower than for TD and KY. Limonin and naringin are the main bitter components of pomelo albedo which need to be reduced. Three chemicals were used to reduce the bitterness of the pomelo albedo�NaCl (1%, 3%, 5%), CaCO3 (1%, 3%, 5%) as well as various pH levels using 0.1 N NaOH solution (pH 7, 8 and 9). The results showed that all chemicals treatment could reduce the limonin and naringin contents (P � 0.05) but adjusting the organoleptic quality to pH 7 had the highest odor score and the lowest score for bitterness. Two drying methods were studied: freeze drying was conducted at -40 �C for 14 hr and the three conditions for tray drying were 50 �C for 5.5 hr, 60 �C for 4.5 hr and 70 �C for 2 hr. The freeze dried pomelo albedo powder had better physical, chemical and functional properties than the samples that were tray dried (P � 0.05). The water holding capacity and swelling capacity of the dietary fiber pomelo albedo powder were compared with commercial cellulose (carboxymethyl cellulose). It was found that the pomelo albedo dietary fiber powder had better functional properties than the commercial cellulose based on scanning electron microscopy. Thus, dietary fiber pomelo albedo powder can be used as a functional ingredient or in industrial applications using food products. � 2015, Kasetsart University. All rights reserved.
Plasmodium vivax inhibits erythroid cell growth through altered phosphorylation of the cytoskeletal protein ezrin
(BioMed Central Ltd., 2015) Tasanee Panichakul; Saranyoo Ponnikorn; Sittiruk Roytrakul; Atchara Paemanee; Suthathip Kittisenachai; Suradej Hongeng; Rachanee Udomsangpetch
Background: The underlying causes of severe malarial anaemia are multifactorial. In previously reports, Plasmodium vivax was found to be able to directly inhibited erythroid cell proliferation and differentiation. The molecular mechanisms underlying the suppression of erythropoiesis by P. vivax are remarkably complex and remain unclear. In this study, a phosphoproteomic approach was performed to dissect the molecular mechanism of phosphoprotein regulation, which is involved in the inhibitory effect of parasites on erythroid cell development. Methods: This study describes the first comparative phosphoproteome analysis of growing erythroid cells (gECs), derived from human haematopoietic stem cells, exposed to lysates of infected erythrocytes (IE)/uninfected erythrocytes (UE) for 24, 48 and 72 h. This study utilized IMAC phosphoprotein isolation directly coupled with LC MS/MS analysis. Results: Lysed IE significantly inhibited gEC growth at 48 and 72 h and cell division resulting in the accumulation of cells in G0 phase. The relative levels of forty four phosphoproteins were determined from gECs exposed to IE/UE for 24-72 h and compared with the media control using the label-free quantitation technique. Interestingly, the levels of three phosphoproteins: ezrin, alpha actinin-1, and Rho kinase were significantly (p_<_0.05) altered. These proteins display interactions and are involved in the regulation of the cellular cytoskeleton. Particularly affected was ezrin (phosphorylated at Thr567), which is normally localized to gEC cell extension peripheral processes. Following exposure to IE, for 48-72 h, the ezrin signal intensity was weak or absent. This result suggests that phospho-ezrin is important for actin cytoskeleton regulation during erythroid cell growth and division. Conclusions: These findings suggest that parasite proteins are able to inhibit erythroid cell growth by down-regulation of ezrin phosphorylation, leading to ineffective erythropoiesis ultimately resulting in severe malarial anaemia. A better understanding of the mechanisms of ineffective erythropoiesis may be beneficial in the development of therapeutic strategies to prevent severe malarial anaemia. � 2015 Panichakul et al.; licensee BioMed Central.
Strategic human capital management for a new university: A case study of suan dusit rajabhat university
(Emerald Group Holdings Ltd., 2015) Danai Thienphut; Suriya Jiamprachanarakorn; Jirusth Sirasirirusth; Rachen Boonloisong; D. Thienphut; Human Capital Development Center, Suan Dusit Rajabhat University, Bangkok, Thailand; email: drdanait@gmail.com
Purpose � This paper aims to study the key success factors (KSFs) that determine the direction and context of a new university, Suan Dusit Rajabhat University (SDU), to formulate strategic human capital management (SHCM) for the university, and also to recommend a proposal for the human resources (HR) structure and systems that supports SHCM for a new university. Design/methodology/approach � This study used mixed methods. There were four steps, including documentary research to develop a draft of SHCM prototype, in-depth interview and knowledge-sharing technique with 17 key informants to develop the underlying final SHCM prototype, collecting the quantitative data from a questionnaire to develop a prototype of SHCM, and validation and confirmation of the suitability and feasibility of SHCM for a new university by using a focus group and knowledge-sharing technique with 14 HR experts and re-confirm for practical implementation with SDU�s executive team. Findings � The four KSFs were university positioning, talent capability, harmonization, and transformation. The SHCM formulation was categorized into two sections: components including strategy on thinking and planning, implementation and measurement; and procedures including HR policy committee, strategic and operational HR management. The HR proposal for implementation was emerging. Originality/value � The tacit knowledge in SHCM, including human capital-centric driving for KSFs and innovative HR in university transformation comprising of the strategic and operational levels, was revealed. � Emerald Group Publishing Limited.

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