TW342346B - Production of thuringiensin concentrates - Google Patents
Production of thuringiensin concentratesInfo
- Publication number
- TW342346B TW342346B TW085100846A TW85100846A TW342346B TW 342346 B TW342346 B TW 342346B TW 085100846 A TW085100846 A TW 085100846A TW 85100846 A TW85100846 A TW 85100846A TW 342346 B TW342346 B TW 342346B
- Authority
- TW
- Taiwan
- Prior art keywords
- thuringiensin
- carry out
- ultrafiltration membrane
- recovery
- membrane
- Prior art date
Links
Abstract
A process for producing thuringiensin concentrates, which comprises filtering out thalluses from the thuringiensin zymotic fluid through a microfiltration membrane, sterilizing the thalluses, adding surfactants, using a filter membrane to carry out the retention recovery; which is characterized in: adding a surfactant in the fermentation filtrate, using an ultrafiltration membrane with a sieve molecular weight of 10,000 dalton (MWCO 10,000) to carry out the recovery filtration which reaches five-fold concentration (I.e. 80% of the zymotic fluid being filtered out) and recycles a retained and concentrated thuringiensin solution, further adding 4~8% of Cetylpyridinium chloride cationic surfactant into the filtrate, and subsequently using an ultrafiltration membrane with a sieve molecular weight (MWCO) of 3,000~10,000 daltons to carry out secondary recovery, and then directly spray drying the retention mixture liquid which has been retained by the ultrafiltration membrane.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085100846A TW342346B (en) | 1996-01-25 | 1996-01-25 | Production of thuringiensin concentrates |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
TW085100846A TW342346B (en) | 1996-01-25 | 1996-01-25 | Production of thuringiensin concentrates |
Publications (1)
Publication Number | Publication Date |
---|---|
TW342346B true TW342346B (en) | 1998-10-11 |
Family
ID=58263557
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
TW085100846A TW342346B (en) | 1996-01-25 | 1996-01-25 | Production of thuringiensin concentrates |
Country Status (1)
Country | Link |
---|---|
TW (1) | TW342346B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1066915C (en) * | 1996-09-02 | 2001-06-13 | 中国科学院生态环境研究中心 | Concentration of Thuricide |
-
1996
- 1996-01-25 TW TW085100846A patent/TW342346B/en not_active IP Right Cessation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1066915C (en) * | 1996-09-02 | 2001-06-13 | 中国科学院生态环境研究中心 | Concentration of Thuricide |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
MK4A | Expiration of patent term of an invention patent |