Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Immunomodulatory and Anti-Inflammatory Activity of Mulberry (Morus alba) Leaves Fermented with Hericium erinaceum Mycelium by Solid-State Culture

Solid-State Culture를 이용하여 조제한 노루궁뎅이버섯 균사체-뽕잎발효물의 면역 및 항염증 활성

  • Kim, Hoon (Dept. of Food Science and Technology, Chungju National University) ;
  • Jeong, Jae-Hyun (Dept. of Food Science and Technology, Chungju National University) ;
  • Shin, Ji-Young (R & D Center, Cosis Bio Corporation Limited) ;
  • Kim, Dong-Goo (R & D Center, Cosis Bio Corporation Limited) ;
  • Yu, Kwang-Won (Dept. of Food Science and Technology, Chungju National University)
  • 김훈 (충주대학교 식품공학과) ;
  • 정재현 (충주대학교 식품공학과) ;
  • 신지영 ((주)코시스바이오 기업부설연구소) ;
  • 김동구 ((주)코시스바이오 기업부설연구소) ;
  • 유광원 (충주대학교 식품공학과)
  • Received : 2011.07.08
  • Accepted : 2011.08.02
  • Published : 2011.09.30
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Abstract

After mulberry (Morus alba) leaves were fermented with Hericium erinaceum mycelium by solid-state culture to enhance physiological activity, fermented mulberry leaves (MA-HE) was extracted by hot-water (MA-HEHW) and ethanol (MA-HE-E). MA-HE-HW showed enhanced mitogenic and intestinal immune system modulating activities (1.41 and 1.52 fold of saline control, respectively) compared to hot-water extracts of non-fermented mulberry leaves (MA-HW) and H. erinaceum mycelium (HE-HW) at $100\;{\mu}g$/mL. Meanwhile, when we tested the inhibitory effects of extracts on nitric oxide (NO), tumor necrosis factor (TNF)-${\alpha}$, and interleukin (IL)-$1{\beta}$ and IL-6 production, MA-HE-E significantly inhibited these pro-inflammatory mediators in LPS-stimulated RAW 264.7 cells (45.1, 41.3, 70.2, and 55.7% inhibition of LPS control at $1,000\;{\mu}g$/mL). In addition, MA-HE-HW and MA-HE-E did not show any cytotoxicity on RAW 264.7 cells at $1,000\;{\mu}g$/mL whereas HE-E and MA-E indicated cytotoxicity (80.1 and 30.7% cell viability of saline control). These results suggest that mulberry leaves fermented with H. erinaceum by solid-state culture might have enhanced immunomodulatory and anti-inflammatory effects compared to non-fermented mulberry leaves, resulting in ingredients biotransformed for fermentation with H. erinaceum mycelium.

뽕잎(Morus alba leaves)의 생리활성을 증강시키기 위하여 solid-state culture 방법을 이용하여 노루궁뎅이버섯 균사체(Hericium erinaceum)를 뽕잎에 배양하여 조제한 노루궁뎅이버섯 균사체-뽕잎발효물(MA-HE)을 열수(MA-HE-HW)와 에탄올(MA-HE-E)로 추출하였다. MA-HE의 용매 추출물 중 MA-HE-HW는 $100\;{\mu}g$/mL의 시료농도에서 시료대조군인 비발효 뽕잎 또는 액체배양으로 얻은 노루궁뎅이 균사체 종균의 열수추출물(MA-HW와 HE-HW)보다 증강된 마이토젠 및 장관면역활성을 나타내었다(각각 saline 대조군의 1.41과 1.52배). 한편, LPS로 자극한 RAW 264.7 murine macrophage에서 염증반응에 중요하게 관여하는 매개인자인 nitric oxide, tumor necrosis factor-${\alpha}$, interleukin-$1{\beta}$ 및 IL-6의 생성 억제효과를 확인한 결과, MA-HE-E는 $1,000\;{\mu}g$/mL의 농도에서 LPS 처리군 및 시료대조군보다 유의적으로 증강된 항염증활성을 나타내었다(LPS 처리군의 45.1, 41.3, 70.2와 55.7% 억제). 또한, RAW 264.7 세포에 대하여 노루궁뎅이버섯 균사체-뽕잎발효물의 MA-HE-HW와 MA-HE-E는 $1,000\;{\mu}g$/mL의 고농도에서도 독성을 나타내지 않았으나 시료대조군 중 에탄올추출물인 HE-E와 MA-E는 각각 80.1과 30.7%의 세포생존률을 나타내어 독성이 있음을 알 수 있었다. 이러한 결과는 solid-state culture를 이용한 노루궁뎅이버섯 균사체의 뽕잎발효는 비발효 뽕잎보다 면역활성 및 항염증활성을 증가시킬 뿐만 아니라 독성을 감소시키는데 중요하게 작용하고 있어 균사체 발효과정에서 뽕잎에 생물학적인 전환과정이 일어나고 있음을 확인할 수 있었다.

Keywords

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