Since many embryos are necessary for the surrogacy of pregnant surrogates, this new method will enable people to collect appropriate transformation embryos and store them when they need to be transplanted to surrogate sows.
Porcine embryos are very cold-sensitive due to the high level of lipids in the embryonic cells, and are therefore difficult to freeze and preserve. Moreover, the freezing and preservation of porcine embryos produced ex vivo is considered to be more difficult. Prather's team overcame this technical hurdle by removing lipids from unfertilized eggs prior to fusing them with muscle cells from male pigs containing modified genetic material. The embryos produced by this method are frozen at the blastocyst stage.
After thawing, the embryos were transplanted to surrogate sows. Experiments have shown that embryos placed in the fallopian tubes of two surrogate sows make the sows pregnant and allow the sows to produce calves successfully.
The results of the analysis showed that these piglets carry genetically altered material and that the new gene changes the fatty acid content in piglets. Next, researchers will also improve this technology. The research team hopes that freezing and preservation of porcine embryos will facilitate the production of pigs carrying economically valuable genetic traits, as well as biomedical research. (Biology reporter Yang Yao)
Bio-Scouring Enzyme is developed for bioscouring process of knitted natural cellulosic fibers. Bio-scouring is an enzymatic process that providing a milder and gentler alternative method to traditional scouring. Coenzyme SPA-5 is liquid and alkaline pectinase preparation. It is specially developed for bioscouring process of knitted natural cellulosic fibers such as cotton, linen, hemp and blend. It removes pectin and other impurities from cotton fibers without any degradation of the cellulose, soften and eliminate cotton seed to optimize dyeing performance.
Coenzyme SPA-5 is a perfect substitution to the traditional process of dyeing and finishing. It can replace the caustic soda, bleaching stabilizer and other harsh chemicals, and Simplify the production process, effectively shorten the processing hours. Decrease the TDS.COD.BOD index in waste water.
Benefits:
Improve handfeel and softness of fibers
No cellulose fibre damage and decrease the weight loss of the fibers
Water and energy saving
Environmental friendly without extensive use of harsh chemicals
Suggested solution combined with anti-pilling proces
This product should be stored in a cool and dry place in sealed container, avoiding insolation, high temperature and damp. The product has been formulated for optimal stability. Extended storage or adverse conditions such as higher temperature or higher humidity may lead to a higher dosage requirement.
Enzyme preparations belong to protein, which may induce sensitization and cause anaphylaxis in sensitized individuals. Long-term exposure may cause minor irritation for skin, eyes or nasal mucosa, so any direct contiguity with human body should be avoided. If irritation or allergic response for skin or eyes develops, consult a doctor.
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