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22대 대한민국 국회 국회정보길라잡이 국회의원검색
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This study investigated the combined effects of Monascus pigment concentration and red LED (RLED) illumination on the growth of Lactococcus lactis, pigment stability, and pH variation during fermentation. The Monascus pigment (0.1–10 mg/mL) and RLED (λ ≈ 660 nm) were applied to evaluate microbial and optical responses. The pigment showed no antibacterial activity against Staphylococcus aureus below 100 mg/mL, indicating safety for use in lactic fermentation. Spectrophotometric analysis revealed that high pigment concentrations caused optical saturation, whereas 2.5–5 mg/mL maintained balanced color intensity and bacterial growth. Under LED irradiation, the colorant exhibited stable absorbance with no visible photodegradation, confirming high photostability under low-energy red light throughout the fermentation period. L. lactis showed slightly accelerated growth and faster acidification within 24 h; however, viable cell counts converged after 48 h, indicating that the observed effects were limited to the early fermentation stage and likely reflect transient photobiomodulation of microbial metabolism. Overall, these findings indicate that low pigment concentrations combined with RLED can support pigment stability and microbial activity without inducing adverse effects on cell viability or fermentation performance. This study highlights the potential applicability of RLED-assisted fermentation systems incorporating natural colorants as a controllable and stable approach for fermentation process optimization.

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QSAR analysis of secondary metabolites from Bacillus siamensis isolated from traditional Korean doenjang Su-Yeon Kim, Min-Kyu Kwak p. 1-9
Application of cyclic dipeptides in ADMET analysis : a structure-based evaluation approach DaGyeong Jung, Min-Kyu Kwak p. 11-19
Integrated phenotypic and molecular interaction profiling of cyclic dipeptides derived from Leuconostoc citreum LabMP-A03 for anti-cancer drug-likeness evaluation Jeong Gyeong Shin, Min-Kyu Kwak p. 21-28
Spectral and growth response of Lactococcus lactis to monascus pigment under red LED illumination Chae Lin Sin, Yeong Ji Oh p. 29-38
(A) study on the relationship between workplace mental health programs and employee job satisfaction Soo-Hwa Lee, Eungoo Kang p. 39-46
(A) curriculum evaluation of KSIA level 2 and 3 training programs using importance-performance analysis : evidence from the 2023/2024 season Seonwook Baek, Hwang-Woon Moon p. 47-60
Effects of Pilates exercise on the blood lipids, aging-related hormones, and follicle-stimulating hormone in middle-aged women Chae-Mun Lee, Jong-Hyuck Kim p. 61-70

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