Abstract: Lactic acid is one of the functional and valuable compounds utilized in food, pharmaceutical, and chemical industries while Poly lactic acid (PLA) is a biodegradable polymer that has a variety of applications. In recent years, microbial conversion of renewable raw materials has become an important objective in industrial biotechnology. Among many raw materials available, tapioca starch is considered an interesting resource for lactic acid fermentation as it is costeffective and its availability is satisfactory. After being hydrolyzed, a hydrolyte of cassava (tapioca starch) containing high concentrations of glucose and a few other fermentable sugars was obtained. This is feasible for an efficient lactic acid production. The objective of this study was to screen and analyze important nutrient constituents was carried out using Plackett- Burman experimental design for production of lactic acid by Lactobacillus rhamnosus B14-2 grown in cassava fermentation. Plackett-Burman experimental de

• Publication Date: 22-Feb-2015
• DOI: 10.15224/978-1-63248-040-8-32
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Abstract: In the tropics, air-conditioning in buildings is highly energy-intensive. Radiant cooling is considered to be a potential means to conserve energy from air-conditioning. This paper presents results of an experimental and simulation study on application of a radiant cooling system in tropical Thailand. The system used radiant cooling panels to extract sensible heat from the experimental room. Heat pipe run around-coil heat recovery was used to handle the latent load from ventilation air and enhance its performance. By modeling the system using TRNSYS program, the simulations show that the radiant cooling system can save energy high upto 19 percent compared to the conventional air conditioning system.

• Publication Date: 22-Feb-2015
• DOI: 10.15224/978-1-63248-040-8-33
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