This experiment aimed to study the suitable types of polymers for coating with chlorophyll extract and the quality of cucumber seeds after coating. The experiment was planned using a Completely Randomized Design (CRD) with four replications, consisting of five methods involving seeds coated with different types of polymers: Polyvinylpyrrolidone, Sodium Alginate, Carboxy Methyl Cellulose, and Hydroxypropyl Methylcellulose, each polymer being coated alongside chlorophyll, with uncoated seeds serving as the control method. The coating substance was prepared by extracting chlorophyll from mango leaves, then mixed with each type of polymer at a concentration of 1%, using an 8% concentration of chlorophyll extract. The properties of each coating method, such as pH and viscosity of the coating substance, were examined before coating the cucumber seeds with a rotary disk coater model RRC150 at a coating rate of 1,100 milliliters per 1 kilogram of seeds. Subsequently, the seeds were dried to reach the initial moisture level using a hot air blower, and seed quality was assessed in various aspects, including seed moisture, germination rate under laboratory conditions, germination index, and seed fluorescence under a portable ultraviolet light illuminator, as well as light emission spectrum analysis using a Spectrophotometer. The experiment found that each type of polymer could be used to form a film together with chlorophyll, which had appropriate pH and viscosity for the coating without affecting seed quality and showed fluorescence on the seed surface both under portable ultraviolet light and spectral emission analysis with a Spectrophotometer. Using HPMC as the film-forming agent with chlorophyll was the most suitable method, enhancing seed fluorescence efficiency.
สารเรืองแสงที่นิยมใช้เคลือบเมล็ดพันธุ์ในปัจจุบันมีหลายชนิด เช่น Rhodamine B, Curcumin, Auramine O แต่สารเหล่านี้บางชนิดหากใช้ไปเป็นเวลานานอาจเป็นพิษต่อร่างกายมนุษย์ หากสะสมในร่างกายอาจก่อให้เกิด oxidative stress ซึ่งกระตุ้นให้เซลล์เกิดการเสียหาย เพิ่มความเสี่ยงของโรคบางอย่างได้ ในงานวิจัยนี้จึงเลือกใช้สารสกัดจากธรรมชาติมาใช้เคลือบเมล็ดพันธุ์ คือ สารสกัดคลอโรฟิลล์ มีข้อดี คือ หาได้ง่าย มีวิธีการสกัดที่ไม่ซับซ้อน แต่ข้อจำกัดของสารสกัดคลอโรฟิลล์คือมีความสามารถในการเคลือบร่วมกับพอลิเมอร์ได้บางชนิด อาจทำให้ประสิทธิการเรืองแสงมีคุณภาพลดลง ดังนั้นการวิจัยนี้จึงมีวัตถุประสงค์เพื่อหาชนิดของพอลิเมอร์ที่เหมาะสมในการนำมาเคลือบร่วมกับสารสกัดคลอโรฟิลล์แล้วไม่ส่งผลต่อประสิทธิภาพการเรืองแสงและคุณภาพของเมล็ดพันธุ์
คณะเทคโนโลยีการเกษตร
The design of Dreamscape Park, a public park covering an area of 50 rai, is based on the concept of ART. The design focuses on preserving green spaces while enhancing functionality to cater to people of all ages. The park features a landmark in the form of a water pond shaped like a drop of ink and a medium-sized amphitheater for various activities. Additional relaxation areas include a café, chill-out seating, outdoor activity zones, and sports facilities such as a basketball court, a takraw court, and walking/running paths around the park. There are also pet zones, children's play areas, gardens at various points, and accessible pathways throughout the area. Users can enjoy a peaceful environment and engage in activities according to their preferences.
คณะวิทยาศาสตร์
This research aims to select the location of the beverage distribution center of Thai Spirit Industry Co., Ltd. with the lowest total cost of transportation. using a mathematical model by considering the Muang districts of all 76 provinces, excluding Chachoengsao Province, where the factory is located. In the present study, four scenarios were divided: 1) when only one distribution center was required; 2) when more than one distribution center was established; 3) when it was divided into 4 regions. There can only be one distribution center in one region, and 4) when it is divided into four regions, where more than one distribution center can be established in one region. When processed with the program IBM ILOG CPLEX Optimization Studio, the results are summarized as follows: Scenario 1, when only one distribution center is assigned. The total transportation cost is 786,107.75 baht/month. Scenario 2, when more than one distribution center can be established. The total transportation cost is 252,338.98 baht/month. Scenario 3, when divided into 4 regions by requiring only one distribution center in one region. The total transportation cost is 401,499.61 baht/month. Scenario 4, when divided into 4 regions by requiring that there is more than one distribution center in each region. The total transportation cost is 258,666.22 baht/month.
คณะบริหารธุรกิจ
In an era where sustainability is at the heart of business operations, eco-friendly packaging is gaining increasing attention. This research explores sustainable business models for alternative packaging, focusing on the case of corn-based paper, an innovation that effectively replaces conventional plastic packaging. The study analyzes key factors that enable businesses using natural raw materials to remain competitive in the market, as well as the growth potential of sustainable packaging compared to plastic-based alternatives. Additionally, it examines the factors influencing consumer behavior in choosing eco-friendly products and evaluates the impact on profitability and social responsibility. This research employs both qualitative and quantitative methods, including case studies of businesses utilizing alternative materials, in-depth interviews with industry experts, and consumer behavior surveys. The findings are expected to provide insights into the business potential of corn-based packaging, strategies for market expansion, and approaches for long-term sustainability. The results of this study will serve as a valuable reference for entrepreneurs seeking to develop green businesses and policymakers aiming to promote sustainable packaging in the market.