Abstract:
PURPOSE: A microorganism capable of producing a heat-tolerant antimicrobial peptide, derived from Korean salted sea foods is provided, which antimicrobial peptide has a strong antimicrobial activity against various plant or animal pathogenic bacteria. CONSTITUTION: The microorganism Bacillus subtilis JKK238 being isolated from Korean salted sea foods is capable of producing a heat-tolerant antimicrobial peptide which has a strong antimicrobial activity to known pathogenic fungi consisting of Pyricularia oryzae, Botrytis cinera, Penicillium sp. Fusarium oxysporum, Collectotrichum cocodes, Phytophthora crytogea and Rhizoctonia solani, and other microorganisms of Streptomyces scabies, Erwinia caractovora and Listeria monocytogenes. The heat-tolerant antimicrobial peptide may be added into feeds, foods or agricultural chemicals to inhibit the growth of the pathogenic fungi and other microorganisms.
Abstract:
PURPOSE: A bacillus subtilis TB11 strain and a method for producing polyglutamic acid(PGA) thereby are provided, therefore the produced PGA having excellent heat resistance can be effectively used in disposing of livestock wastes. CONSTITUTION: The bacillus subtilis TB11 strain(KFCC-11025) produces polyglutamic acid(PGA) having excellent heat resistance. The polyglutamic acid (PGA) is produced by fermenting Bacillus subtilis TB11(KFCC-11025) in a medium containing 2% glycerol, 2% glutamate salt, 0.15% of ammonia chloride and 1.2% of citric acid, pH 7.2. The polyglutamic acid (PGA) consists of glutamate and has the molecular weight of 10,000 kDa or more.
Abstract:
본 발명은 남극토양에서 분리한 미생물 중에서 저온에서 생육이 왕성한 아스로박타 속( Arthrobacter sp.) A2-5 균주를 선발하여 신규의 균주의 확인과, 이 균주로부터 저온 유도 단백질(cold shock protein)을 생산하는 유전자를 분리하여 진핵 생물에서 그 기능을 규명한 것이다. 아스로박타 속, 저온유도 단백질, 저온유도 단백질 유전자, 저온저항성, 효모
Abstract:
본 발명은 남극토양에서 분리한 미생물 중에서 저온에서 생육이 왕성한 아스로박타 속( Arthrobacter sp.) A2-5 균주를 선발하여 신규의 균주의 확인과, 이 균주로부터 저온 유도 단백질(cold shock protein)을 생산하는 유전자를 분리하여 진핵 생물에서 그 기능을 규명한 것이다. 아스로박타 속, 저온유도 단백질, 저온유도 단백질 유전자, 저온저항성, 효모
Abstract:
PURPOSE: Provided is a novel antifungal antibiotic material which is represented by the formula(I) and produced from Bacillus sp. strains. Also, its preparation method is provided. CONSTITUTION: The novel antifungal antibiotic material is characteristically represented by the formula(I), wherein R1 and R2 are the same or different each other, and represent hydrogen, a hydroxy group, C1-C6 alkyl group or a C5-C20 alkylene group, and l and m are individually integers of 1-2.