Spent coffee grounds (SCGs) are waste from coffee drink process, which are rich of a varieties of nutrients. This research applied SCGs as ingredient in cracker. The optimized formula and process are studied as well as addition of different levels of SCGs were studied. It was found that addition of SCGs in cracker had hedonic score in high level from panels, especially panels who drink coffee. Moreover, it was observed that SCGs could increase nutrients especially carbohydrate and fiber to the product.
ผลิตภัณฑ์เบเกอรี เป็นผลิตภัณฑ์ที่ผู้บริโภคนิยมชื่นชอบ และสะดวกต่อการบริโภคทั้งในเวลาเร่งด่วนและเวลาว่าง โดยเฉพาะแครกเกอร์ซึ่งเป็นหนึ่งในผลิตภัณฑ์ที่สะดวกพกพา และสามารถนำมาบริโภคได้ในทุกช่วงเวลา การเสริมคุณค่าทางโภชนาการในแครกเกอร์ จึงมีส่วนช่วยให้ผู้บริิโภคได้รับประโยชน์มากขึ้น นอกจากนี้ แครกเกอร์มีองค์ประกอบของส่วนผสมที่อาจส่งผลต่อคุณภาพ โดยเฉพาะไขมัน แนวมลทางการใช้ประโยชน์จากวัตถุดิบที่มีส่วยช่วยในการเสริมสารอาหารแบะช่วยต้านการเกิดปฎิกิริยาออกซิเดชันเนื่องจากไขมัน จึงมีศักยภาพในการนำไปใช้ผลิตจริง กากกาแฟจึงนับเป็นวัตถุดิบที่มีคุณลักษณะดังกล่าว งานวิจัยนี้จึงใช้กากกาแฟในการเสริมอาหารให้กับแครกเกอร์ ด้วยกากกาแฟมีใยอาหาร มีสารประกอบโพลีฟีนอลดและยังเป็นการใช้ประโยชน์จากส่วนเหลือการชงกาแฟ ได้อย่างมีประสิทธิภาพ
คณะสถาปัตยกรรม ศิลปะและการออกแบบ
The purpose of this research aims to guidelines the identity design for high-speed rail stations, which are divided into four steps: 1) Survey and analysis of identity at the high-speed train stations, including subway in Japan and Taiwan. 2) Comparison the perception of the environment by the questionnaire at BTS, MRT BL, Airport Rail Link (AERA1), and MRT PPL in Bangkok from passengers 800 passengers. 3) Survey and analysis the perception of identity at the MRT Blue Line by questionnaires 800 passengers at Wat Mangkorn, Sam Yod, Sanam Chai, and Itsaraphap stations. 4) To analysis with the descriptive statistics and one-way ANOVA. Study and survey of the high-speed rail environment from Bangkok to Nong Khai, then synthesize the identity design guidelines by 12 experts with structured interviews to summarize the conceptual framework for identity design for high-speed rail stations. The results shown that the identity of train stations in Japan and Taiwan is designed based on architectural and historical concepts that align with the local environment, society, and lifestyle near the stations. This design approach is evident at stations serving as significant tourist attractions and in the surrounding environment, including external buildings and nearby public transportation connections, as well as entrance and exit doors to the station. In summary, four types of identities have been identified: 1) The Identity Historical and Architectural 2) The Identity of Culture 3) The Identity from Cartoons and 4) The Identity of Art and Design
คณะวิศวกรรมศาสตร์
This research aims to investigate the adulteration of Khao Dawk Mali 105 rice based on storage age using Near-Infrared Spectroscopy (NIRS) with Fourier Transform Near-Infrared Spectroscopy (FT-NIR) in the wavenumber range of 12,500 – 4,000 cm-1 (800 – 2,500 nm). Storage duration significantly impacts the quality of cooked rice. This research is divided into two parts: 1) to investigate the feasibility of separating rice according to storage age (1, 2, and 3 years) using the best model created by an Ensemble method combined with Second Derivative, which achieved an accuracy of 96.3%. 2) To investigate adulteration based on storage age by adulterating at 0% (all 2- and 3-year-old rice), 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90%, and 100% (all 1-year-old rice). The best model was created using Gaussian Process Regression (GPR) combined with Smoothing + Multiplicative Scatter Correction (MSC), with coefficients of determination (r²), root mean square error of prediction (RMSEP), bias, and prediction ability (RPD) values of 0.92, 8.6%, 0.9%, and 3.6 respectively. This demonstrates that the adulteration model can be applied to separate rice by storage age (1, 2, and 3 years). Additionally, the color values of rice with different storage ages show differences in L* and b* values.
คณะวิศวกรรมศาสตร์
This thesis project was conducted to identify the optimal conditions for producing concentrated butterfly pea juice using vacuum evaporation to preserve key compounds in butterfly pea flowers, such as anthocyanins—natural pigments with high antioxidant properties. The study applies a Box-Behnken Design, a statistical method that facilitates analysis of multiple factors. The research focuses on the ratio of dried butterfly pea flowers to water, extraction temperature, and evaporation temperature, each of which has a direct effect on the preservation of key compounds, color, aroma, and flavor. The results indicate that using a dried flower-to-water ratio of 1:15, an extraction temperature of 60°C, and an evaporation temperature of 40°C under low pressure can minimize the loss of essential compounds and best retain the properties of the concentrated butterfly pea juice. Findings from this research provide a foundation for developing an industrial production process for concentrated butterfly pea juice and enhance the potential for creating new products from butterfly pea flowers.