Hwang Hee-Jeong, Ye Min-Ji, Chung Myong-Soo
Department of Seafood Science and Technology, Gyeongsang National University, Tongyeong, 53064 South Korea.
Department of Food Science and Biotechnology, Ewha Womans University, Seoul, 03760 South Korea.
Food Sci Biotechnol. 2024 Mar 16;33(12):2877-2886. doi: 10.1007/s10068-024-01541-z. eCollection 2024 Sep.
The objective of this study was to enhance the microbial inactivation efficacy of sesame seeds through the utilization of a pilot-scale IPL device, while also identifying the process variables that influence the microbial inactivation effect. Three different types of IPL processes were employed, each with a distinct arrangement, to treat sesame seeds. The total fluences applied ranged from 1.33 to 53.94 J/cm. Total aerobic bacteria and fungi exhibited a maximum reduction of 2.27 and 2.77 log, respectively. The curved pathway of the sample flow effectively extended the duration of exposure to the IPL emitted by the lamps. The arrangement of the IPL process using two lamps in parallel but at different locations proved the most efficient for microbial inactivation. The application of IPL was found to be effective in reducing the presence of indigenous microbes in sesame seeds while having no significant impact on the physicochemical properties of the seeds.
本研究的目的是通过使用中试规模的强脉冲光（IPL）设备提高芝麻的微生物灭活效果，同时确定影响微生物灭活效果的工艺变量。采用了三种不同类型的IPL工艺，每种工艺都有独特的布置方式来处理芝麻。施加的总能量范围为1.33至53.94 J/cm²。需氧菌总数和真菌分别最多减少了2.27和2.77个对数单位。样品流的弯曲路径有效地延长了样品暴露于灯发出的IPL的时间。使用两个平行但位于不同位置的灯的IPL工艺布置被证明对微生物灭活最有效。研究发现，IPL的应用有效地减少了芝麻中固有微生物的存在，同时对芝麻的理化性质没有显著影响。
