TY - JOUR
T1 - Immunostimulatory Polysaccharide Fractionated from a Liquid Culture by Phellinus linteus Mycelium
AU - Shin, Hyun Young
AU - Kim, Hoon
AU - Jeong, Eun Jin
AU - Kim, Hyun Gyeong
AU - Shin, Jung Cheul
AU - Choi, Sang Young
AU - Suh, Hyung Joo
AU - Moon, Sung Kwon
AU - Yu, Kwang Won
N1 - Publisher Copyright:
© 2022 The Korean Society of Food Science and Nutrition.
PY - 2022/1
Y1 - 2022/1
N2 - A liquid culture was fermented using Phellinus linteus mycelium, and 5 fractions were isolated to evaluate the possibility of using them as postbiotic ingredients. The fractions isolated were: Hot-water extract (PL-HW) from whole liquid culture, crude polysaccharide (PL-CP) from PL-HW by ethanol (EtOH) precipitation, hot-water extract (PM-HW) from isolated mycelia, crude polysaccharide (PM-CP) from PM-HW, and exopolysaccharide (EPS) from culture supernatant by EtOH precipitation. Innate immunostimulating activity using the RAW 264.7 cell line showed that EPS induced the most effective production of tumor necrosis factor-alpha (TNF-α), monocyte chemoattractant protein-1 (MCP-1), interleukin-6 (IL-6), and nitric oxide. In addition, adaptive immunostimulating activity using splenocytes isolated from C3H/HeN mice revealed that PL-HW, PM-HW, and EPS induced prominent splenocyte proliferation. Specifically, EPS stimulated the production of Th1-activated cytokines such as TNF-α and interferon-gamma (IFN-γ) in splenocytes, suggesting its effectiveness in cell-mediated adaptive immune activation. General chemical analysis showed that the immunostimulatory EPS was composed of neutral sugar (90.2%), uronic acid (6.1%), protein (1.2%), and polyphenols (2.5%). Component sugar analysis indicated that EPS was composed of a high proportion of glucose (94.9%), and small amounts of mannose (3.8%), galactose (0.9%), and glucuronic acid (0.4%). In conclusion, it was confirmed that glucan-type exopolysaccharide fractionated from the culture supernatant of the P. linteus mycelium can promote both innate and adaptive immune cell stimulation.
AB - A liquid culture was fermented using Phellinus linteus mycelium, and 5 fractions were isolated to evaluate the possibility of using them as postbiotic ingredients. The fractions isolated were: Hot-water extract (PL-HW) from whole liquid culture, crude polysaccharide (PL-CP) from PL-HW by ethanol (EtOH) precipitation, hot-water extract (PM-HW) from isolated mycelia, crude polysaccharide (PM-CP) from PM-HW, and exopolysaccharide (EPS) from culture supernatant by EtOH precipitation. Innate immunostimulating activity using the RAW 264.7 cell line showed that EPS induced the most effective production of tumor necrosis factor-alpha (TNF-α), monocyte chemoattractant protein-1 (MCP-1), interleukin-6 (IL-6), and nitric oxide. In addition, adaptive immunostimulating activity using splenocytes isolated from C3H/HeN mice revealed that PL-HW, PM-HW, and EPS induced prominent splenocyte proliferation. Specifically, EPS stimulated the production of Th1-activated cytokines such as TNF-α and interferon-gamma (IFN-γ) in splenocytes, suggesting its effectiveness in cell-mediated adaptive immune activation. General chemical analysis showed that the immunostimulatory EPS was composed of neutral sugar (90.2%), uronic acid (6.1%), protein (1.2%), and polyphenols (2.5%). Component sugar analysis indicated that EPS was composed of a high proportion of glucose (94.9%), and small amounts of mannose (3.8%), galactose (0.9%), and glucuronic acid (0.4%). In conclusion, it was confirmed that glucan-type exopolysaccharide fractionated from the culture supernatant of the P. linteus mycelium can promote both innate and adaptive immune cell stimulation.
KW - Exopolysaccharide
KW - Innate immunostimulating activity
KW - Liquid culture
KW - Phellinus linteus mycelium
KW - Splenocyte
UR - http://www.scopus.com/inward/record.url?scp=85125859577&partnerID=8YFLogxK
U2 - 10.3746/JKFN.2022.51.1.19
DO - 10.3746/JKFN.2022.51.1.19
M3 - Article
AN - SCOPUS:85125859577
SN - 1226-3311
VL - 51
SP - 19
EP - 27
JO - Journal of the Korean Society of Food Science and Nutrition
JF - Journal of the Korean Society of Food Science and Nutrition
IS - 1
ER -