phb 中文意思是什麼
phb
解釋
單段行為-
Our products include various types of biodegradable shopping bags, garbage bags, t - shirt vest bags and dead body bags, etc made from pla enbiomat phb mater - bi pha phbv etc
等全生物分解材料做成的各種類包裝袋購物袋垃圾袋背心袋掛衣袋堆肥袋和包屍袋等。 -
However, in the late phase of the growth, the strain hv grew a little faster than e. colihms174. hv ( ptz101 ) was constructed by the plasmid containing the phb operon and the parde gene tansformed into the strain hv
將帶有phb操縱子和質粒穩定分配基因parde的質粒ptz101引入vhb整合菌中，構建成為產phb的vhb整合菌hv （ ptz101 ） 。 -
The main results obtained from this work are as follows : 1. the penicillium. sp ds9701, a strain of degrading phb, was mutagenized by uv treatment
本項工作主要是篩選能高效降解phb的突變株，並對其進行酶學性質的研究，主要結果如下： 1 -
Through screening a lot of mutants with the method of transparent zones and culture filtrate, the best four were obtained with high - yield of stable phb depolymerase, named as 02, 04, 09 and 14
以青黴（ penicillium . sp ） ds9701為出發菌株，通過紫外線誘變分生孢子，採用透明圈初篩和搖瓶培養復篩的方法，獲得4個能穩定遺傳的phb解聚酶高產菌株。 -
S. fredii can synthesize phb in culture medium of glucose and change its metabolic pathway by intimidation pressure when alkanoates were added int o culture medium. according to this theory, metabolic pathway of p ( hb - hh ) was induced
根據費氏中華根瘤菌在以葡萄糖為碳源時合成phb ，而在烷酸鹽提供一定環境脅迫壓條件下，改變了代謝方向，我們推導出該菌合成phas的代謝途徑。 -
Poly - 3 - hydroxybutyrate ( phb ) and other related polyhydroxyalkanoates ( phas ) are biodegradable thermoplastic polyesters stored in numerous bacteria as carbon and energy reserves and now have been regarded as ideal alternatives to traditional petroleum - derived plastics, which cause severe environmental and waste management problems
聚3 -羥基丁酸酯（ poly - 3 - hydroxybutyrate ， phb ）及其它類型的聚3 -羥基鏈烷酸酯同屬于聚酯類物質，是自然界中多種細菌的碳源及能源儲備物。 -
The aim of this work is to find out the mutant, which can be able to degrade phb efficiently and to investigate the characteristics of phb depolymerase
自然界中的許多種微生物都具有降解phb的能力，這依賴于分泌一種特殊的胞外phb解聚酶。 -
Moreover, the mass spectrum analysis of the hydrolyzed water soluble products of phb powder after treatment of enzyme was performed and the main product was identified to be dimers
一些金屬離子對phb解聚酶有抑制作用。質譜儀測得酶降解phb的產物主要是二聚體。 -
Part iii hvec, vsmc and fibroblast were seeded onto inner surface of tubular porous pga and phb scaffold precoated with collagen. sead hvec, vsmc and fibroblast onto three porous polyglycolic acid and poly - ? - ydroxybutyrate scaffolds precoating with collagen, which different caliber but embedded each other. observe cell growth and differentiation on these scaffolds
通過用膠原分別包埋處理的三個管徑大小不同、但能相互嵌套的pga及phb管形支架，並種植人臍靜脈內皮細胞、人血管平滑肌細胞、人成纖維細胞進行三維立體生長培養，觀察細胞生長分化情況。 -
Because phb / phas production by bacteria fermentation is prohibitively expensive, great attention has been focused on the synthesis of phb in plants using co2 for carbon and sunlight for energy, which is considered as a promising strategy to obtain price - competitive biodegradable plastics
這種聚酯的物理化學特性與傳統塑料相似，並具有生物可降解性，如能取代化學合成塑料將減少環境中的塑料廢棄物，從源頭治理「白色污染」問題。 -
In some bacteria the pha in the dry cell can be up to 70 % wt by fermentation, but the cost is high. this class includes phb ( poly ( 3 - hydroxybutyrate ) ) and phbv ( poly ( 3 - hydroxybutyrate - co - 3 - hydroxyvalerate ) ). these polymers present the advantages of biodegradability and biocompatibility over other thermoplastics with useful mechanical properties
Pha （聚羥基脂肪酸酯）是一類從菌體中分離出來的新型生物高分子材料，由於其直接從生物體中提取，因而具有良好的生物相容性、生物可吸收性和生物可降解性能，近年來引起可降解高分子材料研究人員的極大興趣。 -
Analysis of biosynthetic function on mixed culture of bmscs and absorbable g - phb membrane
聚羥基丁酸酯膜復合培養的生物合成功能分析 -
Gene silencing, a common phenomenon in phb production through nuclear transformation, had n ' t been observed in the chloroplast transgenic plants analyzed by northern dot blot
Northern點雜交檢測表明與phb合成相關的三個基因均能在轉錄水平表達，未出現核轉化中經常發生的「基因沉默」現象。 -
Conclusion : tubular porous pga and phb precoating with collagen can be used as scaffold for constructing vessel in tissue engineering. this will be good foundation for architecture of a layered structured vessel in next stage
該支架具有一定彈性和韌性，在培養液中，能較長時間保持形狀。此方法為進一步應用組織工作方法構築具有分層結構的人造血管打下基礎。 -
3. the extracellular phb depolymerase was purified from 09 by using hydrophobic column chromatography and gel filtration technique in sephadex g - 100. the specific activity of the purified enzyme was increased by 37. 9 folds over crude extract, and the recovery yield was 8. 9 %
以粗酶液為起始，經硫酸銨分級沉澱、 sephadexg - 100凝膠過濾后，分離純化了該酶，純化倍數約為37 . 9 ，酶活力回收率8 . 9 。 -
Buffer manage is anther important mechanism to realize phb, the thesis emphatically analyses active buffer manage algorithms and gives out new muti - level buffer manage algorithm - qpred and vpri : d algorithms, this two algorithms are fit to diffserv model needing of priority and realize fair buffer manage on the basis of priority
緩沖管理是實現phb的另一重要機制，論文中重點分析了主動緩沖管理演算法，根據diffserv模型的要求，提出了新型的多級緩沖管理演算法- qpred和vpred演算法，這兩種演算法適應了phb的優先級要求，在優先級的基礎上實現了公平的緩沖管理。 -
To investigate whether it is suitable for biodegradable plastic production, we constructed the chloroplast integration and expression vector ptrv - phb, and integrated all the genes necessary for phb synthesis into tobacco chloroplast genome through gene - gun transformation. the chloroplast transformants showed phenotypically normal growth and were fertile
本研究在國內率先探討將葉綠體轉化技術引入植物生產生物可降解塑料這一領域的可行性（國外僅有日本一例） ，構建了葉綠體轉化及表達載體ptrv - phb ，通過基因槍法將phb合成相關基因導入煙草葉綠體基因組。 -
On the aspect of data path, this thesis focuses on the realization technology of the traffic conditioner and phb
在數據通路方面，論文中主要研究了通信量調節器和phb的實現技術。 -
Poly ( 3 - hydroxybutyrate ) ( phb ) are attracting much commercial and academic interest as substitute for non - degradable petrochemically derived plastics because of their similar material properties to conventional plastics and complete biodegradability under natural environment. the ability to degrade phb is widely distributed among bacteria and fungi and depends on the secretion of specific extracellular phb depolymerase
聚3 -羥基丁酸（ phb ）不僅具有熱塑性塑料的性質，還在自然環境中具有生物可降解性，因而成為傳統石化塑料的替代品，在工業等領域具有廣闊的應用前景，也成為國內外生物材料領域的研究熱點。 -
Select the strain of high output of phb
高產菌株的選育
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