The objective of this study is to assess the impact of spray drying conditions on medium-chain triglyceride (MCT) loading, solubility, and release of an MCT-loaded solid self-emulsifying system in a water-insoluble oily substance. MCT-loaded solid self-emulsifying systems are prepared by spray drying with SDS and calcium silicate. The effects of inlet temperature (60, 80, or 100oC) and feed solution composition (0, 10, 50, 90, or 100% ethanol) on physicochemical properties of MCT-loaded solid self-emulsifying systems are studied. The inlet temperature significantly affects the water solubility of MCT. Moreover, the feed solution composition significantly affects water solubility, release rate, and MCT loading. The MCT-loaded solid self-emulsifying system obtained at 60oC using 90% ethanol feed solution shows the best physicochemical properties among the synthesized products and exhibits better water solubility (4.43 ± 0.44 vs. 0 μg/mL) and release (94.4 ± 1.6 vs. 32.8 ± 7.4%, 60 min) than a commercial product. Furthermore, the MCT-loaded solid self-emulsifying system shows an excellent emulsion droplet size (approximately 230 nm).

This study was conducted to evaluate the biofiltration treatment characteristic for benzene vapor gas. Compost and calcium silicate porous material were used as biofilter fillers. Gas velocity and empty bed retention time were 15 m/hr and 4 min, respectively. Benzene gas removal efficiency of P-Bio (calcium silicate porous material with inoculation) was the highest and maintained in over 98%. After shock input of benzene gas, the removal efficiency of P-Bio biofilter was recovered within 2 days, while 5 days were taken in CP-Bio (compost + calcium silicate porous material mixture with inoculation) and CP (compost + calcium silicate porous material mixture without inoculation) biofilters. The removal efficiency of P-Bio biofilter was near 100% in the loading rate of 〈85g/m3(filling material)/hr, It was shown that the maximum elimination capacities of P-Bio, CP-Bio, and CP biofilters were 95, 69, and 66 g/m3(filling material)/hr, respectively. Microbial number of P-Bio, which the number was the lowest at start-up, was 3 orders increased on operational day 48. CO2 was generated greatly in order of P-Bio, CP-Bio, and CP biofilters.

규소와 석회의 단독 및 병용효과 그리고 이들 상호작용을 보기 위하여 수행한바 결과는 다음과 같다. 1. 최고분얼기의 초장 및 분얼이 규소처리구에서 Control구에 비해 약간 증가를 보였다. 2. 주당수수에서 규소처리구는 약간 감소를 보였지만 수당립수 천립중 등숙율에 있어서는 규소 단독구와 규소+석회구에서 증가를 보였다. 3. 수량은 규소단독처리구가 Controlrn에 비해 15% 석회단독처리구가 13% 그리고 규소석회혼용구에서 22%의 증수를 보였다. 4. 수확한 수도체내 질소함량은 규소와 석회구에서 Control구에 비해 높은 함량을 보였으며 인산함량 적시 규소와 석회구에서 높은 경향을 보였고 가리함량은 경엽이나 수에서 규소와 석회처리구가 Control구에 비해 월등히 낮은 함량을 보였다. 그리고 규소와 석회함량 다같이 규소석회를 사용하므로서 각각 높은 함량을 보였고 특히 석회+규소병용구에서 높은 함량을 나타냈다.