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Resulls showed that five stored antagonists (Burkholder cepacia, Candida guiliermondii, Kloeckera apiculata, Debaryomyces han-senii, Bacillus subtilis) could effectively inhibit brown rot of sweet cherry fruit, among which Bacillus subtilis and Candida guiliermondii could entirely inhibit the disease.

结果表明,保存的洋葱伯克霍尔德氏菌、季也蒙假丝酵母、柠檬形克勒克酵母、汉逊德巴利酵母、枯草芽孢杆菌 B-912等5种拮抗菌对甜樱桃褐腐病都表现出显著的抑制效果,其中枯草芽孢杆菌、季也蒙假丝酵母可完全抑制病害的发生;季也蒙假丝酵母和柠檬形克勒克酵母能有效地防治核果类果实采摘后软腐病。

Reductive conversion of geraniol to citronellol is adopted as a model reaction, and several factors in the reaction are discussed using gas chromatography method. The influence of n-hexane and butyl acetate, as organic solvents, on biocompatibility was studied; the influence of methanol, ethanol, glycol, n-butanol and 1-hexanol, as energy substance, on the transformation efficiency was compared, respectively; the catalysis capabilities of Baker's yeast, XST-KO yeast, LP yeast, alcohol yeast, dry yeast, Saccharomyces cerevisiae, Angel yeast and Meishan yeast were discussed. It has been proved that biocompatibility of n-hexane are much better than that of butyl acetate, and the hexane has been demonstrated the most effective in terms of the influence on biotransformation, Baker's yeast has shown the highest tranformation efficiency among the eight yeast strains.

以香叶醇转化为香茅醇作为模型反应,通过气相色谱法进行定性和定量分析研究了影响该有机相生物转化反应的几个基本因素,考察了两种有机溶剂正己烷和乙酸丁酯对生物相容性的影响,选用甲醇、乙醇、乙二醇、正丁醇和l-己醇分别作为能量物质进行实验,比较其对转化的影响并探讨了Baker's酵母、XST-KO酵母、LP酵母、酒精酵母、假丝酵母、干酵母、安琪酵母和梅山酵母八种不同酵母作为生物催化剂对模型反应的催化能力,结果表明,正己烷作为有机溶剂,其生物相容性明显好于乙酸丁酯,更加有利于该生物转化反应进行;乙二醇作为能量物质,该模型反应转化率最高;而 Baker's酵母作为生物催化剂,对该模型反应的催化能力最强,最适合作为该模型反应的催化剂。

When MAA yeast was used to catalyze other systems, such as reducing ethyl 4-chloroacetoacetate to ethyl-4-chloro-3-hydroxybutyrate and ethyl acetoacetate to ethyl-3-hydroxybutyrate, the yield also improved at various degrees.

用此酵母在水相中催化乙酰乙酸甲酯的还原,其得率较普通面包酵母要高。pH和温度对MAA酵母与普通面包酵母都有相同的影响。

Results showed that all the three sweet sorghum varieties contained plentiful sugar, which can provide enough carbon source for alcohol fermentation, however, total nitrogen and some mineral elements(Fe3+)cannot meet the needs of alcohol fermentation. Activity of most microbes in stalk juice can be inhibited and the sugar can be maintained when the stalk juice was condensed to 4~5 times. Due to the reasons that the activity of acetous microbe or hydrolysis enzyme inside stalk juice can be maintained, ratio of reducing sugar to total sugar was increased with storage time at 55~60℃,0.15 MPa vacuum condensed condition, which can be beneficial for the purpose of alcohol fermentation.

结果表明,三个品种都含有丰富的糖分,可以为酵母菌发酵制取酒精提供良好的碳源,但总氮和某些矿物质元素(如:Fe3+)不能满足酒精酵母的营养需要;甜高粱茎秆汁浓缩至4~5倍时,可以抑制汁液中大多数微生物的活动,使其中糖分不受损失;在试验设定的真空浓缩工艺条件下(55~60℃,0.15 MPa)甜高粱茎秆汁中产酸微生物或水解酶类仍保持活性,使得还原糖占总糖的比率随贮藏时间延长而升高,这有利于酒精发酵。

The somatotropin and the trace mineral elements provided by yeast nutrient salt for the growth of yeast could not only make strong and symmetrical form of yeast which could effectively fight against senium but also improve the yeast activities which could then improve the reducibility of biacetyl in beer and shorten fermentation time by 10%~15%.

浙江钱啤集团股份有限公司,浙江萧山 311217摘要:酵母营养盐能为酵母提供所需的生长素和微量矿物质元素,使酵母形体均匀、健壮,不易衰老,提高酵母活性,提高啤酒中双乙酰还原能力,缩短发酵周期10%~15%。

Three hundred and fifty-nine strains of bacterium and fifty-seven strains of yeast isolated from foregut, hindgut, coelomic liquid and body surface of Stichopus japonicus were studied for biochemical activities.

从刺参Stichopus japonicus前后消化管、体腔液和表皮上所分离到的359株细菌分别属于弧菌属、假单胞菌属、奈瑟氏球菌属、不动杆菌属、柄杆菌属、黄杆菌属、节杆菌属、微球菌属、黄单胞菌属、棒杆菌属、产碱菌属这十一个主要菌属;57株酵母菌分别属于球拟酵母属、红酵母属、隐球酵母属和德巴利氏酵母属四个属。

When the molasses addition amount was 30%, the coarse-protein content of fermentation production was increased from 9.2% to 14.5%, increase range was 57.6%. Secondly, the co-fermentation of Trichoderma koningi, Saccha romyces cerevisiae, Candida utilis and Candida tropicali utilizing the residue was studied. Trichoderma koningi can growth with the residue culture medium, but the degradation of cellulose was not obvious; The impact of different microzyme on residue fermentation was different, and Saccha romyces cerevisiae was the best

在乳酸残渣单菌发酵的基础上,探讨了康氏木霉、啤酒酵母,热带假丝酵母、产朊假丝酵母不同组合对残渣发酵的影响,得出:康氏木霉可以在残渣上生长,但所产纤维素酶活很低,对纤维素的降解不明显;不同酵母菌对残渣发酵效果不同,其中以啤酒酵母最优,且在不同酵母进行组合发酵时,发酵产物中粗蛋白含量并没有出现叠加现象,效果较啤酒酵母单菌发酵并没有显著优势。

However, similar yeast extracts can also be made from other species of yeast such as torula yeast grown on ethanol, Kluyveromyces marxianus grown on whey or from spent brewer's yeast.

然而,相似的酵母抽提物也能来自于其他的酵母如酒精发酵的圆酵母、乳清中生长的克鲁维酵母或废啤酒酵母。

Type genus of the Tuberculariaceae; fungi with nodules of red or pink conidia; some cause diebacks of woody plants.

瘤座孢科的模式属;长有红的或粉的假的酵母的真菌;一些造成木本植物死亡的病原体。

In this thesis, effects of common factors in yeast extract production with autolysis on yield and total amount of amino acid nitrogen in supernatant, degradation of RNA and saccharides during autolysis were studied, in which fresh baker\'s yeast was used as material. Extraction of 5\'-phosphodiesterase from barley rootlets was also studied. The optimum technology conditions of yeast extract production was determined by comprehensive considering results of above-mentioned study.

本论文以新鲜面包酵母为原料,研究了自溶法生产酵母抽提物过程中的影响因素对得率、上清液氨基氮总量、自溶过程中RNA降解及糖类物质降解的影响,同时还对麦芽根中5'-磷酸二酯酶的提取进行了研究,综合以上研究结果优化了酵母抽提物生产的工艺条件;此外,从酵母自溶残渣中提取了酵母细胞壁多糖,并对该多糖的乳化性及酯化修饰进行了研究,取得了下述主要研究结果。1。

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