Journal of Science and Development Economic
Journal of Nam Can Tho University
Application of blockchain technology in the development of agricultural supply chains in Can Tho City
In recent years, blockchain technology has garnered significant attention from businesses and researchers due to its prominence. Blockchain is being widely used in logistics activities such as traceability of goods, digitization, reducing intermediaries in the supply chain, enhancing data security for integrated information sharing, and smart contracts. This research was conducted to examine the application of blockchain technology in the development of agrifood supply chains in Can Tho City. The study employs a qualitative research method to gather data from various sources, including domestic and international books, journals, and reports from relevant governmental agencies. Based on the analysis results, the study proposes several solutions to promote the application of blockchain technology in the development of agricultural supply chains in Can Tho, such as enhancing the capacity of stakeholders in the supply chain, further disseminating the benefits of blockchain technology, building infrastructure, strengthening cooperation among stakeholders, or implementing additional financial support policies.
Promoting green logistics development in Can Tho City in the context of Industrial Revolution 4.0
Green logistics development is not only a global trend to address environmental issues alongside economic development goals but also aims for sustainable development and environmental protection. Therefore, Can Tho City, as the central hub of the Mekong Delta region, needs to take the lead in developing green logistics towards sustainable development goals. To address this issue, Can Tho City needs to implement the following comprehensive solutions: developing green infrastructure, greening transportation activities, applying Industry 4.0 technologies in logistics, greening warehousing activities, greening reverse logistics activities, and greening logistics activities within enterprises.
Analysis of the development of Warehouse Execution Systems (WES) in warehouse management
Warehouse Execution System – WES is a software developed and built on the foundation of existing software (warehouse control system – WCS and warehouse management system – WMS) and the need to supply goods of warehouses according to customer requirements with a large number of orders but still ensuring tight delivery time. WES was born with a number of development factors such as automation and flexibility, optimizing resources, avoiding congestion. In the future, WES will be developed and supplemented with a number of features to solve more practical requirements of automated distribution centers.
Green logistics and green supply chain management research: a bibliometric analysis based on Scopus database
Green logistics and green supply chain management have garnered widespread attention from numerous researchers, with a steadily increasing number of publications. This study conducted a comprehensive bibliometric analysis using the VOSviewer tool on green logistics and green supply chain management research from 2003 to 2024, based on the Scopus database. By utilizing bibliometric analysis tools, the study evaluated trends, influential authors, organizations, and countries in this field. With 694 publications selected for analysis, the results reveal developments and research directions such as barriers and drivers; green human resource performance and management; the Dematel method and green supply chain practices; environmental management and green production; and the circular economy and green logistics.
Digital transformation in logistics: lessons learned for the Mekong Delta region towards sustainable development
Digital transformation in logistics has become an inevitable trend in the context of globalization and Industry 4.0. The research aims to analyze lessons learned from various countries and propose lessons for the Mekong Delta region towards sustainable development. Based on the analysis results, the lessons include: Improving the legal framework for digital transformation in logistics; supporting capital for digital transformation activities in the logistics industry; enhancing investment in synchronized and modern infrastructure; applying information technology; supporting enterprises in adopting new technological solutions in the logistics industry; developing high-quality human resources in the logistics sector; promoting green logistics development.
The role of lactic acid bacteria in food processing and improving bioactive compounds in the human body
Clinical studies have shown that selecting lactic acid-fermented products helped to enhance resistance to intestinal pathogens, stimulate the immune system, and help maintain a balanced intestinal microflora. Some advantages of traditional fermentation were labor-intensive, integrated with rural life, and was a familiar fermentation technology. In addition, lactic acid fermentation was less expensive, and the value of fermented foods was enhanced in trade. From these perspectives, research on new fermentation technologies should be given more attention to the social and economic factors in developing countries.
Foam-mat drying technique and some initial research results on local foods
Dehydration of foods is not simply a preservation technique in the present era, rather an important food processing operation which has many benefits in addition to enhancement of shelf life of foods. There are various methods of drying foods and most of them are unique in their own way. Present review is about Foam-mat drying technique for fruits and vegetables to develop good quality powders. Foam-mat drying is a new drying technique for foods which are highly heat sensitive and very sticky to dry. By using this drying technique product is dried in a very short time with minimum quality changes. Fruits and vegetables pastes were mixed with different foaming agents (egg albumin, soy protein, GMS etc.) and foam stabilizers (carboxymethyl cellulose etc.) in different concentration to introduce stable foams. Foams were dried in trays by application of hot air, microwave, freeze-drying and milled to develop free flowing powders. This is a simple technique and initially showed good results in drying liquid foods obtained from various local fruit and vegetable materials (jackfruit, red-fleshed dragon fruit, melon, etc.).
Factors affecting the processing of chicken breast and green chili (Capsicumn annuum L.) Vietnamese steamed sausage (cha lua)
The main purpose of this research is to develop a process for producing green bird's eye chili chicken breast patties from new ingredients, contributing to diversifying patty products on the market. This study was carried out by investigating the following factors: the influence of grinding time (2 - 5 minutes) on raw chicken breast; sodium polyphosphate ratio (0 - 0.45%); sugar (1 - 3%) and gelatin (0 - 2%) ratio and steaming time (30 - 45 minutes) affect product quality. Research results showed that the appropriate grinding time was 3 minutes. The ratio of sodium polyphosphate was 0.45%, sugar was 2% and gelatin was 1% which would create a product with a stable structure. The steaming time to ensure microbiological standards was 40 minutes.
Research on the production process of breadfruit (Artocarpus altilis) steamed bun
The research was conducted to establish the process of making sake dumplings through investigating influencing factors such as sake ratio (25 - 40%), yeast ratio (0.5 - 2g), sugar ratio (8 - 14%) added to the dough and incubation time (40 - 70 minutes) to the quality of sake dumplings. Study results showed that the added ratio of 35% sake, 1.5% yeast, and 12% sugar would improve the fermentation process and created a harmonious sweetness for dumpling products. The appropriate incubation time was 60 minutes for the product to have good quality.
Biocompatible thin films based on ZIF-8 and applying for Tetracycline delivery
New classes of thin films: ZIF-8, mesoZIF-8 and TiO2@ZIF-8 grated on biocompatible polymers including chitosan (CS) and polyetilene glycol (PEG) were fabricated. The films were carried out in green conditions to apply for drug delivery study. The combination of two polymers PEG and CS enhanced the bonding with the ZIF-8 framework since many function groups have formed in a slightly acidic solution. The resulting of materials were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), which revealed the ZIF-cooporated on the polymers well. For the first time, the examination of tetracycline (TC) delivery was studied on these hybrid thin films. The TC delivery was showed in high effective by using the film compared to several materials.
Community perception of river tourism development on the Petagas river, Malaysia – Lessons for Can Tho City
Unpolluted rivers with protected riverbanks provide significant opportunities for tourism development. In recent decades, there has been growing interest in rivers as tourism resources. Globally, the demand for river cruises and water sports has increased rapidly, along with the development of riverbanks for tourism purposes such as accommodation, dining, and shopping. However, the attitudes and perceptions of the local community play a crucial role in developing a successful river tourism resource. The aim of this study is to investigate your perceptions as a local resident regarding the development of river tourism on the Petagas River in Kota Kinabalu, Sabah, Malaysia. Semi-structured interviews were conducted with 79 riverside residents to understand your views on the development of river tourism, assess your potential participation in such activities, and identify issues you believe could hinder tourism development. The findings show that while you generally support tourism development, you also recognize the need to restore the river ecosystem and to change several current uses of the river.
Survey of botanical characteristics and preliminary analysis of chemical composition of Abutilon indicum
Abutilon indicum belonging to the Malvaceae family, is a medicinal plant widely used in traditional medicine for the treatment of dysentery, fever, allergies, diuresis, toothache, back pain, inflammation, diabetes, bronchitis, diarrhea, gonorrhea, helminthiasis, rheumatism, numbness, bone and joint pain, and detoxification. The leaves are also crushed and applied topically to treat boils and snake bites. However, research on A. indicum in Vietnam is limited. Therefore, to provide scientific evidence, to advance a broader research scope that previous studies have restricted, focusing on individual parts such as roots, stems, and leaves of A. indicum, and to promote the value of this species, the entire A. indicum plant, collected in Vinh Long province, was analyzed. Morphological, anatomical, and powdered drug characteristics were described, and preliminary chemical composition was surveyed using the modified Ciuley method. The results revealed the anatomical characteristics, powdered drug characteristics, and preliminary chemical composition in the roots, stems, and leaves. These morphological, anatomical, powdered drug and preliminary chemical composition findings support accurate identification and quality control of the medicinal material. Additionally, they provide a valuable reference for further research.
Survey of botanical characteristics and preliminary analysis of chemical composition of Ficus pumila
The scientific name of the Ficus pumila L. belonging to the Moraceae family. Parts of the plant are used to treat many diseases such as rheumatism, anemia, dysentery, hemorrhoids, menstrual disorders, hepatitis and high blood pressure. Up to now, in Vietnam, there have been very few studies on the botany as well as the active ingredients in the extract of this plant. This is a medicinal herb with great potential, so the project aims to survey the botanical characteristics and preliminary analysis of the chemical composition of the Ficus pumila plant to provide additional data for identification and differentiation from other plant species, and to orient the groups of compounds contained in the stem and leaves. The whole plant of the plant was collected in An Khanh ward, Can Tho City, analyzed, described the morphological and anatomical characteristics, medicinal powder and preliminary chemical composition survey by the improved Ciuley method. The results showed the anatomical characteristics, medicinal powder characteristics and preliminary chemical composition in the stem and leaf parts. From the results of botanical characteristics, it helps to support the accurate identification of medicinal materials when used and orient the groups of compounds in the fruit, stem and leaf parts of the plant.
The assessment of gastrointestinal and cardiovascular risks and the rational use of non-steroidal anti-inflammatory drugs in outpatient treatment at Nam Can Tho University Hospital in 2024
This study aims to assess the gastrointestinal and cardiovascular risks and the rational use of non-steroidal anti-inflammatory drugs in outpatient treatment. A descriptive cross-sectional study was conducted using 253 outpatient prescriptions of patients who were treated at the Nam Can Tho University from July to December 2024. Patients aged ≥ 18 years and having used at least one type of NSAIDs were included in the study. The data collection process involved analyzing prescription and recording demographic characteristics, types of NSAIDs used, as well as gastrointestinal and cardiovascular risks and the rational use of NSAIDs. Quebec Medical Council guideline was applied to assess the gastrointestinal and cardiovascular risks, which were classified into three categories: low, moderate, and high. Patients who are under 60 years old accounted for a higher proportion and were mostly men from Can Tho city. Musculoskeletal and connective tissue diseases were the most common group (58.89%). Meloxicam (45.85%) and Etoricoxib (26.88%) were most commonly prescribed. 34.39% of patients were prescribed proton pump inhibitors. Low gastrointestinal risk (64.03%) and low to moderate cardiovascular risk (90.91%) were the highest. NSAIDs are reasonably prescribed for both gastrointestinal and cardiovascular risks, accounting for 75%. Patients mostly have low gastrointestinal risk and low cardiovascular risk. The proportion of NSAIDs prescribed appropriately is higher than those prescribed inappropriately.
Research on the job adaptability of public relations graduates from Nam Can Tho University in the context of integration and the digital age – employers' perspective
In the era of rapid digital transformation and global integration, work adaptability has become a critical competency for young professionals, especially in dynamic fields such as Public Relations (PR). This study investigates the factors influencing the work adaptability of PR graduates from Nam Can Tho University. Utilizing a mixed-methods approach, including in-depth interviews and quantitative surveys with 100 employers and 140 graduates, the research identifies three key factors: core professional competencies (β = 0.509), adaptability mindset (β = 0.286), and career self-development capacity (β = 0.345). Employers affirm that while graduates possess solid theoretical knowledge and positive attitudes, gaps remain in practical skills and responsiveness to real-world challenges. The study concludes that training quality, learning motivation, and institutional support are crucial in improving graduates’ adaptability. Based on the findings, five policy recommendations are proposed: curriculum modernization aligned with industry demands, development of soft skills, stronger industry-academic collaboration, digital tools for personalized learning, and enhanced feedback mechanisms. These solutions aim to equip students with the agility and competencies needed to thrive in the evolving job market.
Improving the legal framework on working time and rest periods to accommodate the demands of Industry 4.0 integration
Our country’s economy has gone through different periods of development, becoming more progressive and modern, in which one factor that plays a dominant role throughout and has contributed significantly to its success is the source of energy, human resources. At any stage, workers always play an extremely important role in the development of the economy. To do so, we must ensure the rights of workers and motivate them to work to create high-quality products and stable productivity. However, human labor power is limited, so workers have the right to rest reasonably and scientifically. Given the current trend of industrial development in the 4.0 era, appropriate of working hours and rest times for workers is also an issue worthy of attention. On that basis, the article focuses on analyzing legal regulations on working hours and rest hours of workers, thereby pointing out unreasonable points and proposing perfect solutions.
Feasibility study and performance evaluation of quiet-revolution/GB wind turbines in urban lighting applications
Amidst escalating energy costs, the financial burden on municipal budgets for public lighting systems has become particularly heavy. This has propelled the need for the search and implementation of sustainable energy-saving solutions. In this study, we focused on the potential application of the Quiet-Revolution/GB (Gorlov) wind turbines as a promising solution for providing renewable energy to public lighting poles. Specifically, we designed and developed a lighting pole system with a 50W capacity, incorporating the Gorlov wind turbine, optimized for efficient operation even at low wind speeds. The turbine was designed with three blades, each with a twist angle of 64.1 degrees, a height of 1.5 m, and a radius of 0.5 m, aimed at achieving the highest efficiency. Through testing, we found that the turbine could operate on its own at wind speeds as low as 2.5 m/s, producing a 12V output and 50W power at wind speeds of 6 m/s and above, while maintaining a low noise level, highlighting the broad application potential of this solution in urban lighting. This study opens a new direction in the application of wind energy in public lighting systems, contributing to the reduction of energy costs and enhancing the sustainability of urban infrastructure.
The impact of student support service quality based on AUN-QA on student satisfaction and the role of brand image: A study at Tay Do University
This study focuses on evaluating the impact of support service quality on student satisfaction at Tay Do University, while also examining the mediating role of brand image in this relationship. The theoretical framework is grounded in Social Exchange Theory, the Triple Bottom Line model, and the AUN-QA assessment standards (version 4.0). Data were collected from over 800 students majoring in Economics and Business Administration, utilizing the Partial Least Squares Structural Equation Modeling (PLS-SEM) method for analysis. The findings reveal that support service quality has a positive influence on student satisfaction, with brand image serving as a significant mediator that strengthens students' attachment to the university. These results offer practical implications for university administrators and the Faculty of Economics, emphasizing the need to enhance support services and invest in brand development. Such efforts not only improve student satisfaction but also increase the university’s competitiveness in student recruitment and elevate the overall quality of education.
On the stability of set optimization problems via upper set less order relations
This paper aims to establish stability conditions, in the Painlevé–Kuratowski sense, for solution sets of set optimization problems under perturbations in both the constraint set and the objective mapping. By relaxing the assumptions of continuity and compactness of the objective mapping, we investigated external stability for weakly efficient and efficient solutions. Moreover, we employed the dominance property of set optimization problems under these conditions to analyze internal stability for efficient solutions. Our results represent a new contribution to the field.
Investigation of the pile group effect subjected to lateral load based on finite element analysis
Mục tiêu của bài báo khảo sát hiệu ứng nhóm cọc dưới tác dụng của tải trọng ngang. Phần mềm tính toán phần tử hữu hạn Plaxis 3D đã được sử dụng để mô phỏng cọc đơn và nhóm cọc có chiều dài là 18 m. Nhóm cọc mô phỏng có cấu tạo 2x2 với khoảng cách các cọc là 3D và 5D, với D là đường kính cọc. Đường kính cọc trong nhóm cọc lần lượt là 0,4 m và 0,6 m. Nhóm cọc được mô phỏng trong tầng đất ở miền Nam Việt Nam. Tầng đất được cấu tạo gồm sỏi sạn, sét và sét cứng. Dựa vào kết quả, nghiên cứu kết luận rằng hiệu ứng nhóm cọc phụ thuộc đáng kể vào khoảng cách cọc và đường kính cọc trong nhóm. Khi khoảng cách cọc tăng, thì hiệu ứng nhóm cọc tăng. Tương tự, khi đường kính cọc tăng, thì hiệu ứng nhóm cọc tăng. Các nghiên cứu tiếp theo về hiệu ứng nhóm cọc cần được thực hiện chú ý đến đặc trưng cơ lý của đất, khoảng cách cọc, đường kính cọc, chiều dài cọc bằng phương pháp thí nghiệm thực nghiệm để hiểu rõ hơn về hiệu ứng nhóm cọc.
Preliminary research on application-oriented 2-seat electric vehicle model
This article presents a preliminary study on the development of a 2-seat electric vehicle designed for specific applications, in line with the green and eco-friendly vehicle strategy of Can Tho City and the Mekong Delta provinces. Due to the unique topography of the Mekong Delta, this type of vehicle has great potential for use in tourism, transportation of local goods, conducting inspections and field surveys, and providing natural resource and environmental services. Unlike traditional vehicles that run on gasoline or diesel, electric cars rely solely on electric motors as their source of energy, making them a more environmentally friendly option by reducing pollution. The paper also delves into the technical aspects and working principle of the electric car, as well as a comparison of parameters between hybrid cars with internal combustion engines and electric cars. Based on the data, the author analyzes the advantages and limitations of the researched vehicle and provides recommendations for future improvements to this specialized electric car.
Advantages and difficulties in integrating provincial planning - practice in Can Tho City
The implementation of the 2017 Planning Law is a significant policy to unify plans and solve the inadequacies of recent plans. This is a global trend of the times that countries around the world have adopted. The unification of planning provides favorable for domestic individual, and foreign businesses to easily and understand and invest in Can Tho City in particular and the country in general. However, when implementing, there are many problems and difficulties. Up to now, the provinces/centrally-run cities that have been approved by the Government to integrate provincial-level planning are still very limited, especially City. Can Tho is submitting and waiting for the Government to approve this planning. Based on the Party's viewpoints, guidelines, and policies, and the State's laws on the application of law when formulating integrated provincial planning, the article focuses on analyzing the advantages, difficulties, and inadequacies of The application of law when preparing and integrating provincial planning and practice in Can Tho city. Thereby, the study has proposed appropriate solutions to the analyzed inadequacies in order to promptly remove difficulties and problems in the process of integrating provincial planning, in order to create a planning system. synchronized and unified planning in Vietnam.
Land valuation according to market price in Binh Thuy District, Can Tho City
The study of land valuation to market price in Binh Thuy District, Can Tho City was carried out in order to evaluate the effectiveness of land valuation by the comparative method and to propose solutions to contribute to completing land valuation methods in the future. The study employed the comparative method according to Circular No. 36/2014/TT-BTNMT of the Ministry of Natural Resources and Environment to collect information and land valuation data and descriptive statistical methods to analyze and evaluate the research data. The results showed that the price of the land parcel needing to be valued was close to the market price and did not exceed ±10% compared to the estimated prices of the land parcels used for comparison. The comparative method was commonly used in Binh Thuy District in particular and Can Tho City in general. This method was easy to use and gave acceptable results. However, the valuation results of the comparative method also depended on the knowledge, experience, and conditioning of the valuer. The comparison method was limited if applied in a market with a low number of trades and the information was not up to date with the time of valuation. The application of the comparative method in land valuation needs to be more complete in terms of its theoretical basis. In addition, it is necessary to add more survey factors (environment, planning factors, etc.) to have an accurate price. It can be applied simultaneously with another method to check and compare to determine the correct land price at the market price.
Cohesion and transition in designing detailed outlines of modules from bachelor's level to master's level: Through special examination of Business Administration major at Tay Do University
Research on cohesion and inheritance in designing detailed outlines for training modules at the bachelor's, master's, and doctoral levels is crucial for promoting fundamental innovation in undergraduate and graduate education. This can help save time and costs for learners by streamlining the training process. However, current practices often result in a disconnect between training levels, leading to duplication of knowledge and a lack of depth in training. To address this issue, this study aims to explore the importance of succession in the design of detailed course outlines, which can enhance learners' understanding of subject content at each level and foster excitement and growth in lifelong learning. The case study for this research is the business administration major at Tay Do University.
Efficient synthesis of Chalcone derivatives using Ketone or Aldehyde as the main raw material by Claisen-Schmidt condensation method: Update on recent information
Chalcones are a unique and significant group of chemical compounds that are naturally found in various plant species. They have the potential for antibacterial, antiviral, antifungal, and antioxidant activities, making them promising candidates for the development of new drugs. Ongoing research is focused on optimizing their biological and chemical properties to meet the stringent requirements of pharmaceutical and biological applications. The Claisen-Schmidt condensation reaction is a commonly used method for chalcones synthesis. This article aimed to present synthetic methods of chalcones based on the Claisen-Schmidt reaction. The advantages and disadvantages of different catalysts conditions for the Claisen-Schmidt condensation were also discussed.
Research of mineral density, rate osteoporosis of bone femoral neck area in women over 40 years old using the DEXA method
Researching bone mineral density (BMD), the rate of osteoporosis, femoral neck in 305 women aged over 40, by dual energy X- ray absortiometry (DEXA), the results showed that BMD of femoral neck decreased with age and the rate of osteoporosis increased with age (above age 70 was 76.8%), BMD decreased with long time of menopause the rate of osteoporosis increased with long-term of menopause (70% over 10 years), and BMD reduced the number of births increased and the rate of osteoporosis increased with the number of births (and above births 5 was 76.9%).
Building a strategy for developing the mud crab sector in the Mekong Delta: Applying the SWOT matrix according to the extended chain method
The study utilized descriptive statistical analysis of secondary data on the mud crab sector in the Mekong Delta. The results revealed that the total mud crab farming area in the Mekong Delta was approximately 465 thousand hectares, with the provinces of Kien Giang, Ca Mau, and Bac Lieu having the largest farming areas, producing 68 thousand tons of mud crab. This represents an increase of nearly 8.2% in total output over the course of 5 years. Additionally, the study employed the SWOT analysis method, following the CWL model with 7 steps, and focused on identifying 3 strengths, 3 weaknesses, 4 opportunities, and 4 threats. Based on this analysis, the study proposed 4 strategies. In the short-term, these strategies include: (1) Capitalizing on the high demand for mud crab consumption by expanding production and ensuring product quality to meet market demand in terms of quantity, quality, and safety, while also ensuring timely and convenient delivery for consumers; (2) Utilizing infrastructure development to reduce waiting time for mud crabs in the supply chain of the Mekong Delta's mud crab sector. In the long-term, the proposed strategies include: (1) Meeting high-quality standards by improving the quality of mud crab products to meet consumer needs; (2) Enhancing control over the environment and input materials to reduce risks and competition with substitute products, ultimately improving the economic efficiency of the Mekong Delta's mud crab sector.
Analyze influencing factors on the loyalty of customers to Ninh Kieu 2 hotel in Can Tho City
The objective of the study was to determine the factors affecting customer loyalty to the Ninh Kieu 2 hotel in Can Tho City. The study combined qualitative and quantitative research methods, and the research model built included Overall Service Quality (Reliability, Responsiveness, Assurance, Empathy, and Tangibility), Brand Reputation, and Corporate Social Responsibility. The study collected data from a sample size of 392 customers who had stayed at the Ninh Kieu 2 hotel. The results of data analysis of the PLS-SEM model showed that there were three main factors affecting customer loyalty, in decreasing order of influence: Overall service quality, Brand reputation, and Corporate social responsibility. From the research results, some managerial implications for managers at the Ninh Kieu 2 hotel to improve customer loyalty were proposed.
Evaluation of some quality standards of extract powder from Abelmoschus sagittifolius (Kurz) Merr.
Abelmoschus sagittifolius (Kurz) Merr., Malvaceae family, also known as Tho Hao ginseng because it grows and is grown in Tho Hao, Thanh Chuong, Nghe An. This is a herb that has been used by people as a medicine with the effect of increasing strength, cooling down, making tea to nourish the body, supporting the treatment of body weakness, insomnia, poor appetite and back pain, and nourishing health for people. Researching, building and evaluating the quality of dry extract from Abelmoschi sagittifolius is necessary to provide high-quality and effective products to meet the requirements of the people. This study aimed to determine some quality criteria of dry extract of A. sagittifolius to establish the quality standard. This study evaluated some quality criteria of dry extract of A. sagittifolius with quality indicators including properties, humidity, total ash, identification, and quantification. The results showed some quality indicators for dry extract including properties (dry powder, uniform, bright brown color, has a characteristic aroma of medicinal herbs, no moldy smell), humidity (7.75%), total ash (8.79%), identification (Correct), and quantification (Achieved). The quality standard of the dry extract of A. sagittifolius has been evaluated and established.
Isolation and structural determination of the main compounds in the fraction of N-Butanol from Polyscias balfouriana (Andre) L.H. Bailey
Leaves of Polyscias balfouriana plants grown in Can Tho were sampled, identified as the correct species of the study, then extracted and fractionated using the technique of exhaust extraction and liquid-liquid extraction, from which fractions were obtained. The n-butanol fractions were further isolated by chromatographic techniques and their chemical structures determined by nuclear magnetic resonance spectroscopy. The results isolated four saponin triterpen compounds including Ladyginosid A (PB01), 3-O-b-D-glucopyranosyl-(1→4)-b-D-glucuronopyranosyl oleanolic 28-O-b-D-glucopyranosyl ester (PB02), acid 3-O-[β-D-glucopyranosyl-(1à4)]-b-D-(6-O-methyl) glucuronopyranosyloleanolic (PB03), 3-O-b-D-glucuronopyranosyloleanolic 28-O-β-D-glucopyranosyl ester (PB04). The structure was determined by one -dimensional 2D NMR nuclear magnetic resonance and compared with reference material. The above four compounds found in the leaves of Polyscias balfouriana provide basic data for further studies on their pharmacological effects.