생명과학회지 (Journal of Life Science)

  • 제15권3호
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  • Pages.374-381
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  • 2005
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  • 1225-9918(pISSN)
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  • 2287-3406(eISSN)
한국생명과학회 (Korean Society of Life Science)
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Leuconostoc mesenteroides sp. strain JFY 균주에 의한 만니톨 발효 조건의 최적화

Optimization of Mannitol Fermentation by Leuconostoc mesenteroides sp. strain JFY

  • 유선균 (중부대학교 공과대학 한방건강식품학과) ;
  • 허상선 (중부대학교 공과대학 한방건강식품학과) ;
  • 송석환 (중부대학교 환경보건학과) ;
  • 김경민 (경북대학교 유전공학 연구소) ;
  • 황경숙 (목원대학교 생명산업학부)
  • Yoo Sun Kyun (Department of Oriental Medicine and Food Biotechnology, College of Engineering, Joongbu University) ;
  • Hur Sang Sun (Department of Oriental Medicine and Food Biotechnology, College of Engineering, Joongbu University) ;
  • Song Suckhwan (Department of Environmental Health, College of Engineering, Joongbu University) ;
  • Kim Kyung Min (Institute of Genetic Engineering, Kyungpook National University) ;
  • Whang Kyung Sook (Department of Microbiology, Mokwon University)
  • 발행 : 2005.06.01
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초록

기능성 식품 첨가물 중에서 당 알코올은 최근 그들의 탁월한 기능성이 알려지면서 수요가 증가하고 있다. 당 알코올 중에서, 만니톨$(C_6H_{14}O_6)$은 식품, 화장품, 제약 산업 등에 매우 광범위하게 이용되고 인체에 독성이 없어 미국 FDA에 의하여 GRAS (Generally Recognized As Safe)로 승인이 되어 이에 대한 수요량이 급격히 증가하는 추세이다. 본 연구는 발효 김치에서 분리 된 L. mesenteroides sp. strain JFY 균주를 이용하여 과당으로부터 만니톨 생산을 위한 최적 생물 전환 조건을 확립하기 위한 것이다. 만니톨 생산을 위한 최적 조건들은 pH 6.5, 배양온도 $28^{\circ}C$, 효모 추출물의 농도 $0.5\%$, 과당의 농도는 $10\%$이었고, 이 조건에서 최대 만니톨생산은 31.5g/l이었다.

The production of functional foods providing health benefit is one of the fast growing fields in the food industry. Mannitol as GRAS (generally recognized as safe) is a functional food. Mannitol is about $70\%$ as sweet as sucrose and slowly and incompletely absorbed from the intestine, suppling only about one-half energy value of glucose. Commercially, the mannitol is synthesized by catalytic or electrochemical reduction of glucose. However, as strong demand for natural products increased, biological techniques have been developed for mannitol production. The object of this study was to determine the optimum conditions of mannitol fermentation by Leuconostoc mesenteroides sp. strain JFY isolated from fermented vegetables. The processes parameters such as pH, temperature, yeast extract concentration, and fructose concentration were optimized. The chosen ranges were 4.5 to 7.5 for pH, 22 to $34^{\circ}C$ for temperature, 0.05 to $2.0\%$ for yeast extract. and 5 to 350 g/L for fructose. The mineral medium used consisted of 3.0g $KH_2PO_4,\;0.01g\;FeSO_4{\cdot}H_2O,\;0.01g\;MnSO_4{\cdot}4H_2O,\;0.2g\; MgSO_4{\cdot}7H_2O,\;0.01g\;NaCl,\;and\;0.05g\;CaCl_2$ per 1 liter of deionized water. The optimum values of pH, temperature, yeast extract, and fructose concentration were obtained at about pH 6.5, temperature $28^{\circ}C$, yeast extract $0.5\%$ and fructose 30g/L. At optimum condition, the production of mannitol amounted to 31.6g/l. We hope that these findings are of particular importance for industrial application of mannitol production.

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참고문헌

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피인용 문헌

  1. Process Optimization of Dextran Production by Leuconostoc sp. strain YSK. Isolated from Fermented Kimchi vol.18, pp.10, 2008, https://doi.org/10.5352/JLS.2008.18.10.1377