发酵作用

The exogenous β-glucosidase was added to the fruiting bodies and fermentation products of Boletus edulis to improve volatile flavor components. The results showed that after the materials were hydrolyzed by β-glucosidase, 48 and 25 volatile components were identified from the fruiting bodies and fermentation products, respectively. Meanwhile, 17(16.63%) and 19(3.78%) components were identified as new compounds, respectively. The contents of other components also improved to some extent.

在美味牛肝菌子实体及其深层发酵产物中添加外源β-葡萄糖苷用于增香，从β-葡萄糖苷酶作用后的子实体和发酵液中分别分离出48种和25种组分，其中新生成的化合物各有17种(16.63%)和19种(3.78%)种，其余组分的含量有些在原有基础土有所增加。

Objective To explore the effect of Lactobacillus fermentation filtrate and its components on the cell cycle and apoptosis of Hela cell as well as its possible mechanism.

目的 观察乳酸杆菌DM9811发酵滤液对宫颈癌细胞株Hela细胞的细胞周期和细胞凋亡的影响，探索乳酸杆菌发酵滤液对宫颈癌细胞作用的可能机制。

The use of acid protease in the production of machine-made yellow rice wine (by non-glutinous rice) could provide nitrogen source for the growth and reproduction of microzyme and accelerate rapid reproduction of microzyme (which improve fermentation stability and capability), decompose proteins (which advanced the use of amylum in raw materials and increased wine yield), and settled the commonly existed problems of low aminophenol nitrogen content and non-sugar solids content.

酸性蛋白酶在粳米黄酒酿造中可为酵母菌的生长繁殖提供氮源，促进酵母菌的快速繁殖，提高发酵过程的稳定性和能力；分解原料中的蛋白质物质，促进对原料淀粉的利用，提高原料的出酒率；可有效解决机制粳米黄酒过程普遍存在的低氨基酸态氮、低非糖固形物的问题；酸性蛋白酶在发酵酒醅中的澄清作用，为黄酒成品解决非生物浑浊提供了方法。

Short chain fatty acid, propyl alcohol, methionine and dimethylamide are the possible precursors for spiramycin formation. Addition of 0.6% propyl alcohol into fermentation medium increases the spiramycin productivity by 24%, while addition of short chain fatty acids, methionine, or dimethylamide has a repression effect on spiramycin production.

合成螺旋霉素的前体物质可能有短链脂肪酸、丙醇、蛋氨酸和二甲胺等，在发酵培养基中加入0.6％的丙醇可以使螺旋霉素的发酵单位提高24％，而短链脂肪酸、蛋氨酸和二甲胺对菌体生长和螺旋霉素的生物合成有不同程度的抑制作用。

Puffball aritifical cultivation is still in the initial stage, liquid fermentation has merits with short cycle,quality stability,ease of industrial production,and so on.The broth same as fruiting body,also has antibacterial,anti-inflammatory and other pharmacological effects.

马勃的人工栽培尚处于起步阶段，液体发酵菌丝具有培养周期短、产品质量稳定、便于工业化生产等优点，且发酵液和子实体一样也有抑菌、抗炎等药理作用。

Strains YL001 and YL002 formed a monophyletic clade with strains of X. nematophilus with sequence homology outweighing 99% and the sequence homology to genus Photorhabdus outweighing 94%. The lag, logarithmic, stationary and contabescence phase of the two bacteria were 0-6, 6-18, 18-66 and 66 h respectively; pH of strains YL001 and YL002 reduced to 5.70 and 5.56 at 12 h, respectively, and then rose gradually to 7.74 and 8.07 respectively when culture finished. Glucose content reduced quickly during 0-18 h, and then kept stable. Amido nitrogen content reached the lowest at 12 h and then rose slowly. YL001 exhibited the highest inhibitory effects at 54 h and YL002 exhibited highest inhibitory effects at 42 and 66 h respectively on B. cirerea and B. subtilis. Strains YL001 and YL002 belonged to X.

YL001和YL002菌株与嗜线虫致病杆菌种内菌株形成一个类群，序列同源性大于99%，与发光杆菌属内菌株的序列同源性大于94%。2菌株的延缓期、对数生长期、稳定期和衰亡期分别为0~6，6~18，18~66和66 h；培养12 h后，YL001和YL002菌株发酵液的pH值分别降低至5.70和5.56，此后逐渐上升，至发酵结束时其pH值分别为7.74和8.07；培养0~18 h时2菌株发酵液中还原糖含量迅速降低，此后保持稳定；12 h时氨基氮含量达到最低，此后开始缓慢上升；YL001菌株培养54 h后及YL002菌株培养42和66 h后，其对番茄灰霉病菌和枯草芽孢杆菌的抑制作用最强。

The effect of microbial action was larger than that of enzymic action under aerobic condition, but was smaller under anacrobic condition.

烤烟发酵过程中，引起烟叶品质改善的主要因素为氧化作用、微生物作用和酶作用，其中以氧化作用为关键性主导作用。

By developing the optional measurement condition for ruminal fermentation products and comparing the effects of different levels of tannic acid on fermentation and methane production, the proper adding levels of tannic acid in vitro was established. We also examined the characteristics of rumen fluid fermentation and methane production of tannic acid unsupplemented or supplemented with different forage : concentrate ratios by using gas production method.

通过对瘤胃体外发酵系统中单宁酸的生物降解以及对瘤胃内环境影响的研究，初步确立了单宁酸改善瘤胃发酵的适宜添加量及其效果；并探讨了在不同精粗比底物条件下单宁酸对瘤胃体外发酵和甲烷产量的作用。

After Bahia grass shoots and leaves were fermented perfectly, the 1% fermentation liquid and fermented shoots and leaves of Bahia grass were amended respectively into pots in which pot soil contained very high density AM fungi propagula (2600 spores per 50g soil).

与对照相比，百喜草茎叶发酵液和发酵茎叶处理的苗木，无论是苗高、根鲜重或者是整株苗鲜重，都表现出显著的生长促进效应，尤其是发酵百喜草茎叶处理，对积苗生长具有极显著的促进作用。

This product has effects on promoting wine yeast to reproduce and increasing yeast population.So it could ferment red and white wine to full dryness,and accelerate sluggish wine to ferment again.The finished wine had better quality than

摘 要：研制了一种新型酵母活性剂，具有促进酵母繁殖、增加酵母群体数量的作用，从而使红、白葡萄酒的发酵更为完全、彻底，并能使发酵出现停滞的葡萄酒再次触发发酵；所生成的葡萄酒感官与理化指标均优于对照样，达到优质葡萄酒的标准。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。