Scale-up of the process for conversion of fish wastes into liquid-fertilizer was examined in a 5-l ribbon-type reactor. Within 96 h after inoculation of autoclaved fish waste with 5.84×105CFU·ml-1 mixed microorganisms, the pH changed from 6.92 to 5.72, the cell number reached 7.28×105CFU·ml-1, and approximately 430 g of fish wastes was degraded. Analyses of a 96-h culture of inoculated fish waste indicated comparable fertilizing ability to commercial fertilizers in hydroponic culture and an amino acid content of 6.91 g·100g-1. Therefore, the scaled-up production was satisfactory with much higher fish-wastedegradationrate (3.61gh-1) than flask-scale production. The culture medium of fish wastes at room temperature was kept well from putrefaction for six months by addition of 1% lactate. Plant-scale production was necessary for commercialization according to cost-effectiveness analysis.
키워드
Fish wastesLiquid-fertilizerHydroponic culturePreservationCost-effectiveness
저자
Byeonggeun GWON [ Department of Biotechnology and Bioengineering, PukyongNationalUniversity, Busan, Republic of Korea. ]
한국생물공학회 [The Korean Society for Biotechnology and Bioengineering]
설립연도
1984
분야
공학>생물공학
소개
이 법인은 생물 공학의 발전과 보급에 이바지하고, 회원 상호 간의 연구 협력과 친목을 도모함을 목적으로 한다
1. 생물공학 분야의 발전을 위한 연구 협력
2. 생물공학의 실용화를 촉진시키기 위한 산학 협동
3. 학술연구 발표회, 강연회, 연수회 등 학술활동의 개최
4. 국,영문 학술지,소식지,학술회의 Proceedings 및 학술도서의 발간
5. 생물공학 발전을 위한 정책 건의
6. 기타 국제 교류 등 본 학회의 목적 달성을 위한 제반 활동