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Bostrycin production by agro-industrial residues and its potential for food processing
Yi-Hsuan Huang,Wen-Jen Yang,Chih-Yu Cheng,Huang-Mo Sung,Shuen-Fuh Lin 한국식품과학회 2017 Food Science and Biotechnology Vol.26 No.3
Bostrycin, a red antibacterial agent produced by Nigrospora sp. no. 407, is considered for meat processing. To optimize production, the culture conditions of submerged fermentation (SmF) and solid-state fermentation (SSF) were investigated. The optimal SmF conditions were a medium containing 1.0% cane molasses and incubation at 30 C and 150 rpm for 6 days. In SSF, other than bostrycin, less pigment was produced and the optimal ratio of bagasse to water was 1:2 for 10 days. The production and recovery rate of bostrycin by SmF were 120 mg/L and 40%, respectively. Bostrycin exhibited thermostable, pHdependent color change and dose-dependent antibacterial activity against Clostridium botulinum. Bostrycin-modified meat turned strong red for at least 24 h and could not be removed by washing; bostrycin maintained its antibacterial activity with a bacteriostasis rate of 91% on Staphylcoccus aureus. This is an easy and inexpensive means of acquiring bostrycin from molasses and sugarcane.
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Ta-Chuan Yeh,Hsuan-Te Chu,Chia-Kuang Tsai,Hsin-An Chang,Fu-Chi Yang,San-Yuan Huang,Chih-Sung Liang 대한신경정신의학회 2019 PSYCHIATRY INVESTIGATION Vol.16 No.8
Objective Since the inflammatory process has been implicated in the pathophysiology of psychiatric disorder, an important issue emerging is to assess the test-retest reliability of cytokine measurement in healthy individuals and patients with schizophrenia. The objective of the present study was to investigate the test-retest reliability of bead-based multiplex immunoassay technology (BMIT) for cytokine measurement by using a Bland-Altman plot (BAP). Methods Twenty healthy individuals and twenty patients with schizophrenia were enrolled, and a 17-plex cytokine assay was used to measure inflammatory biomarkers at baseline and two weeks later. The test-retest reliability was examined by BAP, 95% limits of agreement (LOA), intraclass correlation coefficient (ICC), and coefficient of repeatability (CoR). Results In the healthy controls, only interleukin (IL)-2, IL-13, IL-10, IL-17, and macrophage inflammatory protein-1β showed excellent ICC. The BAP with 95% LOA determined that 13 cytokines showed acceptable 95% LOA for a 2-week test-retest reliability, and only IL-1β, IL-12 and tumor necrosis factor (TNF)-α had significant test-retest bias. The CoR of cytokines varied significantly, ranging from 1.72 to 218.1. Compared with healthy controls, patients with schizophrenia showed significantly higher levels of IL-5, IL-13, and TNF-α and significantly lower levels of IL-4, IL-12, and interferon-gamma (IFN-γ). Of these six cytokines, IL-12 and TNF-α were considered suboptimal reliability. Conclusion The findings from ICC and CoR implied that the test-retest reliability of BMIT for cytokine measurement were suboptimal. However, the BAP with 95% LOA confirmed that BMIT can reliably distinguish schizophrenia from healthy individuals in cytokine measurement, while significant within-subject variation and between-group overlapping were evident in cytokine expression.
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Shu-Li Cheng,Fu-Chi Yang,Hsuan-Te Chu,Chia-Kuang Tsai,Shih-Chieh Ku,Yu-Ting Tseng,Ta-Chuan Yeh,Chih-Sung Liang 대한신경정신의학회 2020 PSYCHIATRY INVESTIGATION Vol.17 No.12
Objective Schizophrenia has been associated with dysfunction of the hypothalamic-pituitary-adrenal axis. Furthermore, alterations in neurotrophic factors might contribute to the pathogenesis of schizophrenia. We aimed to evaluate the effects of a simulated laughter intervention on the levels of cortisol and BDNF and to determine whether the effects associated with simulated laughter could be sustained after discontinuation of the intervention. Methods In this randomized controlled study, patients with schizophrenia according to DSM-IV clinical criteria were randomly assigned to receive either 8-week-long simulated laughter intervention (n=32) or treatment-as-usual group (control group, n=27). The serum levels of BDNF and cortisol were measured at baseline, week 8, and four weeks after discontinuation (week 12) of the intervention program. Results After an 8-week simulated laughter intervention, the laughter group had significantly higher levels of BDNF; however, four weeks after discontinuation of the intervention, the levels of BDNF significantly dropped. Interestingly, the levels of cortisol did not change significantly at week 8, but they were significantly elevated at week 12. The levels of BDNF and cortisol in the control group did not change significantly between week 0 and week 8. Conclusion These findings suggest that the simulated laughter intervention has an early effect on neurogenesis with a significant delayed effect on stress regulation in subjects with schizophrenia.
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Shiunn-Der Kuo,Hui-Ping Chen,Hsuan-Chih Sung 세계문화관광학회 2009 Conference Proceedings Vol.10 No.0
The methods to preserve data are improving with every passing day. Paper is mostly used for preserving information in the past. However, paper documentation easily gets damage while time goes by. The information technology helps conserve image data for a longer period of time and restore data in a smaller form which is easily disseminated and recyclable. Consequently, the purposes to share resources with and to spread tourism to other audiences are achieved by applying the advanced information technology. After the fast industrialized development in Taiwan economy as well as the western cultural influence on Taiwan society, much of Hakka merchandise disappears gradually. The National Digital Archives Program and the Council for Hakka Affairs both thus hope to preserve the cultural assets more detailed and accurate. As the cultural impacts continue, how to well-preserve the traditional cultural assets become an essential task to pass down permanently. This study seeks to establish a digital collection website of Hakka cultural scenery specifically in JutianㆍNeipu regions in Taiwan by applying Dreamweaver with PHP and MySQL database. A field study is designed for data collections that include image photographs and archives. Data then are classified to be the basis of the interface design. After the completion of the digital archive, the purpose of this study can be fulfilled. That is, to take advantage of the far-reaching web-network, audiences around the world can appreciate the beauty of the Hakka culture.
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