Luangsakul, Naphatrapi

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Preferred name
Luangsakul, Naphatrapi
Alternative Name
Luangsakul, N.
Naphatrapi, Luangsakul
Main Affiliation
Email
naphatrapi.lu@kmitl.ac.th

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    A Kinetic Study on Starch Digestibility and Polyphenol Release of Different Physically Modified Riceberry Flours During In Vitro Stimulated Gastrointestinal Digestion
    (2025-01-01)
    Van Ngo, Tai
    ;
    Naphatrapi, Luangsakul
    Riceberry rice has a dark purple color; and a high content of antioxidants, which could affect the digestion behaviors and its application. This study is aimed to analyze the starch digestion rate and predict the bio-accessibility of polyphenols in various modified Riceberry flours during the in vitro digestive process. It also discussed the relationship between the rate of digestion and polyphenol release, which provided basic information about the digestion behavior of Riceberry flour. Seven rice flour samples were used for this study, which included six physically treated flours: annealed flour (AF), heat moisture-treated flour (HMT), pregelatinized flour (Pregel), ultra-sonicated flour (US), wet microwave-treated flour (Wet), dry microwave treated flour (Dry), and untreated (control sample). The obtained results showed that, compared with the control sample, the digestion rate of the Pregel sample was higher, while the others had lower values. However, the Pregel sample showed the second highest rank of bio-accessible polyphenol during digestion after the US sample. While the HMT sample presented the lowest rate of starch digestion and release of bioactive compounds. This investigation also used an artificial neural network (ANN) to forecast the starch digestion and polyphenol bio-accessibility of rice flours. During digestion, the ANN model demonstrated a high capacity to predict the polyphenol bio-accessibility and starch hydrolysis percentage. There was a goodness of fit between the ANN-predicted and the actual values (R<sup>2</sup> >0.95). The importance of the bioavailability and bio-accessibility analysis indicates the functional potential that flour can have, which could be predicted effectively by applying modern techniques such as the ANN model. Moreover, it was also concluded that the digestive tract readily absorbs released polyphenol compounds in rice flour, which also influences the rate of starch hydrolysis. However, the impact could vary depending on the flour’s starch fraction content and the polyphenol activity, which is a topic for future investigation. The high antioxidant content and low digestion rate of flour could be highly promising functional materials for application in the food industry..
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    Chinese steamed buns
    (2012-01-01)
    Keeratipibul, Suwimon
    ;
    Luangsakul, Naphatrapi
    Originating from China, Chinese steamed buns or Chinese steamed bread (CSB) is a traditional wheattype product in Chinese cuisine. They can be with or without filling. Their unique characteristics, which are distinctly different from baked bread, are their white color and round shape with a very thin and soft skin, and they are made by steaming instead of baking. Various names are used to call this product depending on location. In Shanghai, steamed bread, either with or without filling, is called mantou, whereas in northern China, a steamed bun with filling is called baozi, where bao means wrapping. CSB can be eaten at any meal in Chinese culture, and is often eaten for breakfast. Besides, steamed bread produced in northern China and southern China is distinctly different by their formulas. The northern-style CSB is produced from a starter mother dough, while the southern-style one is made with yeast (Peng et al. 2007). Nowadays, steamed bread is well-known and popularly consumed in Asia.
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    Yeasts in bread and baking products and their nutritional and health benefits
    (2024-09-16)
    Phuengjayaem, Sukanya
    ;
    Jirakanjanasit, Thanadol
    ;
    Choovet, Natladda
    ;
    Luangsakul, Naphatrapi
    Baker's yeast, scientifically named Saccharomyces cerevisiae, is a fundamental microorganism in baking and leavening dough that influences the flavor and texture of bread. It has a rich history and continues to evolve through biotechnological advancements, contributing to the art and science of baking. At present, driven by a growing consumer preference for healthier, more sustainable, and technologically advanced food processing options, bakers are adapting their techniques to cater to these evolving demands. In addition to other premium ingredients used in baking, the addition of yeast significantly influences bread quality. Therefore, enhancing the characteristics of yeast strains is crucial for improving bread quality. This chapter explores traditional and innovative baking techniques, incorporating alternative ingredients and adopting cutting-edge technologies to align with evolving consumer preferences. This finding underscores the pivotal role of bakers in shaping the future of food, combining tradition and innovation to enrich the culinary landscape. This overview offers valuable insights into the diverse contributions of yeasts to the bread industry, including flavor enhancement, texture improvement, and adaptation to changing market demands.