Research Journal Phranakhon Rajabhat : Science and Technology

EFFECT OF WOLFFIA (Wolffia globosa) SUPPLEMENTATION ON THE QUALITY OF INTANIN DESSERT

Khwanruethai Soontorntammarath — 2025-12-30

This research aims to study the appropriate amount of Wolffia (Wolffia globosa), consumer acceptance, and product quality of Intanin dessert with Wolffia (Wolffia globosa) by adding Wolffia 15, 25, and 35% weight by flour weight. The results demonstrated that 25% of Wolffia supplement in Intanin dessert has the highest scores, including color, odor, texture, taste, and overall acceptance, and 87% of the consumers were highly satisfied and accepted this product formula. The chemical, physical, and microbiological properties showed that Intanin dessert with Wolffia has higher protein (0.75 and 0.08g per 100g) and fiber (0.89 and 0.44g per 100g) than control, while the energy is lower (86.06 and 88.37 kcal per 100g) than the control. In addition, the phenolic content (56.53 and 1.54 µg
GAE/g), and antioxidant activity (113.12 and 9.02 µg TE/g) are also higher than control, respectively. The colorimetry of Intanin dessert with Wolffia was L* 21.43, a* -8.66, and b* 10.42, respectively. The texture of Intanin dessert with Wolffia included hardness, springiness, cohesiveness, chewiness, and gumminess were 75.98 g force, 60.22%, 36.44%, 16.72 g force, and 27.71 g force, respectively. The Microbiological quality results comply with Thai Community Product standards.

DESIGN AND DEVELOPMENT OF AGRICULTURAL PRODUCT TRACEABILITY TO SUPPORT THE AGRICULTURAL SAFETY

Rataphol Sangkhasuk — 2025-12-30

This research aimed to develop a traceability system for agricultural products in alignment with Thailand’s food safety policies and international standards, including ThaiGAP, GlobalGAP, Organic Thailand, ACT, ISO 9001:2015, ISO 22000:2018, GHP, BRC Food Issue 8, and global coding
standards. A prototype platform, KasetTrace.com, was designed to support barcode-based tracking (ITF-14, EAN-13, GS1-128, and QR Code) and enable access for both producers and consumers, with no login required for consumers. The research methodology involved field studies, in-depth interviews, and focus group discussions with stakeholders across the supply chain—including farmers, collectors, processors, distributors, and consumers—to analyze current logistics processes and design a system suitable for real-world application. The system also integrates Plus Codes technology to enhance geolocation accuracy and reduce search time. Experimental implementation with five agricultural products showed that the average traceability response time was 42.12 seconds, with complete and accurate data retrieval in every instance. Furthermore, user satisfaction was evaluated among 300 participants, yielding an overall average score of 4.06 out of 5, indicating a high level of satisfaction regarding usability, accuracy, and reliability. The findings suggest that the developed system can enhance transparency in agricultural logistics, promote food safety, and strengthen the competitiveness of Thai agricultural products in global markets.

DEVELOPMENT OF A WIND TURBINE BLADE INSPECTION ROBOT

Naphon Srikhumpha — 2025-12-30

This research aims to develop a robot for inspecting the operational condition and damage of wind turbine blades. The robot captures images and wirelessly transmits data to ground operators for assessment. The prototype robot is controlled using a Raspberry Pi 4 board, which manages movement via wireless signals and data communication through the Robot Operating System (ROS). Test results indicate that the robot can move on various inclinations and execute programmed functions effectively. It successfully transmits real-time images and records footage. On a flat surface, the movement times
were 0.44 minutes for forward motion, 0.38 minutes for backward motion, 1.19 minutes for left turns, and 1.35 minutes for right turns. On a 20-degree inclined surface, the robot remained operational but required more time compared to a flat surface, taking 9.24 minutes to move forward, 4.26 minutes to move backward, 10.43 minutes to turn left, and 9.31 minutes to turn right. At a 30-degree incline, the robot exhibited limited movement in different directions due to insufficient suction force from the vacuum pump to support its weight. This study demonstrates the robot’s capability in wind turbine blade inspection and provides opportunities for further development to enhance its efficiency in diverse operational conditions.

DESIGN GUIDELINES OF WATER HYACINTH BASKETRY COMMUNITY BAN KHLONG NOK KRATHUNG’S LEARNING CENTER TO PROMOTE LEARNING RESOURCES OF LOCAL WISDOM

Phimphawan Phakdeesuwan — 2025-12-30

The Water Hyacinth Basketry Community Enterprise of Ban Khlong Nok Krathung seeks toestablish a learning center dedicated to knowledge transfer, promotion, and development in the art of weaving. The research team investigate the spatial usage behaviors and factors influencing the design of the learning center through a participatory design approach. The research objectives
are as follows: 1. To study the behaviors of users within the learning center area; 2. To analyze the factors influencing the design of the Water Hyacinth Basketry Community’s learning center; 3. To propose design guidelines and evaluate user satisfaction for the learning center through a participatory design process. The research findings indicated that community enterprise users faced significant challenges with inadequate and disorganized product storage, primarily stemming from suboptimal building area allocation. Given key design constraints, specifically limited physical space and the mandate to preserve the existing structure, the resultant design was required to support multipurpose use and continuous spatial connectivity. The evaluation results indicated satisfaction levels regarding the design guidelines for the learning center are exceptionally high across all aspects. It was determined that the architectural design of the building is better suited for spatial utilization. Space allocation aligns with user needs more efficiently, effectively addressing issues of inadequate storage. The incorporation of the group’s distinct weaving styles into the design concept enhanced the building’s appeal. The design prioritized natural ventilation and light while adapting to the existing building structure. Interior design and material selection reflect natural and warm tones, harmonizing with the location’s context and local identity.