x
uploads/hydrolysate.jpg

hydrolysate n.【化學】水解產物(=hydrolyzate)。

hydrolysis

The recombinants were constructed by transforming ppic9 a - xynb into p . pastoris gs115 . the assay results revealed that the xylanase gene xynb was overexpressed and secreted effectually in p . pastoris . in 3l fermentor the expression level of xylanase xynba exceeded 1200iu / ml and the expressed xylanase had normal bioactivity . the molecule weight of xynba was determined as about 31kd which is higher than 23kd of original enzyme xynb from streptomyces olivaceoviridis a1 . xynbb was gotten by deglycasylation of xynba , whose molecule weight returned to 23kd . we comparised the enzymatic properties of xynba expressed in p . pastoris , xynbb deglycasylated from xynba and xynb produced from streptomyces olivaceoviridis al : there was little difference among the three enzymes on optimal ph , the optimal ph of xynb and xynba were both 5 . 2 , the optimal ph of xynbb was 5 . 0 ; the optimal temperature of xynb and xynba were both 60 c , while the optimal temperature of xynbb was 50 ? ; because of glycosylation the thermal stability of xynba was better than xynb and xynbb ; the specific activity of xynba and xynbb were 883 . 88iu / mg and 832 . 5hu / mg respectively , which were both lower than 2814 . 45iu / mg of xynb ; the km values of xynb and xynba were similar to each other which were 21 . 56 ( g / kg ) and 20 . 87 ( g / kg ) , while the km value of xynbb was 27 . 10 ( g / kg ) ; the fmax of xynba and xynbb were 4568umol / mg . min and 5329umol / mg . min respectively which were lower than 27623 umol / mg . min of xynb ; additionally all of the three enzymes did not display cellulase activity . they all had well resistance to pepsion and trypsin , and were not sensitive to metal iron , surface active agent and chelating agent . the analysis of different xylans enzymatic hydrolysate revealed : by xynba , that the main constitutions of enzymatic hydrolysate of birch wood xylans were xylotriose and xyloquaiose , which account for 68 . 43 % and 16 . 50 % respectively , additionally there was 11 . 79 % of xylobiose ; the main constitutions of enzymatic hydrolysate of corncobs xylans were xylobiose and xylotriose , which account for 81 . 78 % and 11 . 55 % . the result indicated that this xylanase was a kind of 1 , 4 - b - d - xylanohydrolase and was fit to used in industrial procession of xylooligosacc harides 進一步對xynba進行了脫糖基化處理得到xynbb ,其分子量恢復到23kd ,證明xynba是糖基化蛋白。通過對畢赤酵母重組表達的木聚糖酶xynba 、脫糖基化的木聚糖酶xynbb以及橄欖綠鏈霉菌a1所產原酶xynb之間酶學性質的比較發現:三種酶的最適ph差異不大, xynb和xynba均為5 . 2 , xynbb為5 . 0 ; xynb和xynba的最適溫度均為60 , xynbb降為50 :在耐熱性上, xynba由于糖基化作用熱穩定性明顯高于未糖基化的xynb和xynbb ; xynba和xynbb的比活性分別為883 . 88iu mg和832 . 51iu mg ,明顯低于原酶的比活2814 . 45iu mg ; xynb和xynba的km值相當,分別為21 . 56 ( g kg )和20 . 87 ( g kg ) ,而xynbb的km值較大為27 . 10 ( g kg ) ; xynba和xynbb的vmax相差不大,分別為4568 mol mg ? min和5329 mol mg ? min ,明顯低于xynb的27623 mol mg ? min此外三種酶均無纖維素酶活性,對胃蛋白酶和胰蛋白酶有很好的抗性,且對作用環境中的各種離子、表面活性劑、螯合劑不敏感。通過對不同木聚糖的酶解產物的糖份分析發現:以樺木木聚糖為底物時,酶解產物主要為木三糖和木四糖,含量分別為68 . 43和16 . 50 ,另外還含有11 . 79的木二糖;以玉米芯木聚糖為底物時,酶解產物主要為木二糖和木三糖,含量分別為81 . 78和11 . 55 。

The notice requires all localities departments of quality and technical supervision must immediately arrange for food processed products in alterative grain , waste oils in the edible oils , dairy products of animal protein hydrolysate , soda consumption level of carbon dioxide and africa , the central african edible soy protein hydrolysate , peppery products in sudan , 17 kinds of possible existence of non - food raw materials illegal conduct special inspection of the scene production enterprises 通知要求各地質量技監部門要立即安排對糧食加工品中陳化糧、食用油中地溝油、乳制品中動物水解蛋白、碳酸飲料中非食用級二氧化碳、醬油中非食用蛋白水解液、辣味制品中蘇丹紅、腐竹中吊白塊等17種可能存在的非食用原料非法行為進行生產企業現場專項檢查。

Some peptides have been isolated and identified from the tryptic hydrolysate of milk casein and demonstrated ace inhibitory activity and antihypertensive effects in vitro and in vivo , respectively . such results have greatly promoted the research of milk - derived antihypertensive peptides ( ahps ) 有研究報道,在牛乳酪蛋白的胰蛋白酶水解物中分離到了一些在體外具有ace酶抑制活性、經動物實驗(體內實驗)證明具有降低血壓作用的抗高血壓生物活性肽。

The article reported promotional role of casein acids hydrolysate on growth in tobacco callus and suspension cultured cells , and the suitable dosage of casein acids hydrolysate was ascertained 摘要報道了水解酪蛋白對煙草愈傷組織和懸浮細胞生長的促進作用,并確定了水解酪蛋白的適宜用量。

In the present study we investigated the effect of four weeks of treatment with a diet containing lactalbumin hydrolysate ( lah ; nestl , vevey , switzerland ) on the immune response of c3h / hen mice 摘要:本研究調查以水解乳白蛋白營養補充劑喂養小鼠四星期后對其免疫反應的影響。

Textiles . tests of fibres . method of determining the quantity of cysteic acid contained in hydrolysates of wool by electrophoresis on paper and spectrophotometry 紡織品.纖維試驗.用紙上電泳法和分光光度計法測定羊毛水解產物中磺基丙氨酸含量的方法

For these infants , a soy - based formula or a protein hydrolysate formula , which is a substantially modified cow s milk formula may need to be considered 對于他們來說,可能需要考慮豆基配方奶或蛋白水解配方奶,后者是一種充分改良的牛奶配方奶。

Production of enzymatic hydrolysate of acetes chinensis with angiotensin - converting enzyme inhibitory and its antihypertensive effects on spontaneously hypertensive rats 抑制產物的酶法制備及其降低原發性高血壓大鼠血壓的效果

Fuel ethanol , from lignocellulosic hydrolysates , as a kind of renewable clean energy source , attracted more and more attention 摘要以木質纖維素水解液發酵生產的燃料酒精作為一種清潔的可再生能源引起人們極大的關注。

Approximate 50 % of mercury and selenium presented in the supernatant ( liver hydrolysate ) and the others in the 1 % residue 約50的汞和硒存在于酶溶解部分,另外50存在于1的酶不溶部分。

Study on the protein retanning and filling agent from the graft - modification of the hydrolysate of the chrome - shavings with vinyl monomers 乙烯基類單體改性鉻鞣革屑水解產物制備復鞣填充劑的研究

Corn germ protein was hydrolyzed by trypsin and the effects of hydrolysates on mouse immunity were investigated 用胰蛋白酶水解玉米胚芽蛋白,研究了玉米胚芽蛋白酶解物對小鼠體內的免疫調節作用。

Produces a wide range of dairy ingredients such as whey protein , hydrolysates , peptides , caseinates , lactose and calcium -生產純鮮牛奶酸奶活性乳酸菌飲料等十多種產品,品牌“雪頓” 。

Studies on angiotensin i - converting enzyme inhibitory peptides from acetes chinensis protein hydrolysate 中國毛蝦蛋白水解物中血管緊張素轉移酶抑制肽的研究

Main ingredients : olive , elastin , molding resin , plant amylose and silk protein hydrolysate 主要成份:橄欖、彈力素、定型樹脂、植物多糖、水解絲蛋白。

Study on functionality of controlled enzymolysis hydrolysate from harengula zunasi by complicated enzymes 青鱗魚蛋白復合酶控制水解物功能特性的研究

Hydrolysate of composite flocculant prepared from fe inorganic flocculants and organic flocculants 鐵鹽類無機有機復合絮凝劑的水解特性及脫色效能

Preparation and analysis of product from reaction between the hydrolysate of the sugar and glutamic acid 淀粉水解糖與谷氨酸反應物的制備與分析

Swelling and plasticity of polyelectrolyte complexes of collagen hydrolysate carboxymethyl - cellulose 羧甲基纖維素聚電解質絡合物的溶脹及可塑性