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1.
柿子味美,含有丰富的胡萝卜素、维生素A、C,钙、磷、铁等矿物质也很丰富,含糖量一般是13%~24%。为使柿子转化增值,需要适时采收并脱涩、加工。  相似文献   

2.
固态发酵法生产柿子醋的研究   总被引:2,自引:0,他引:2  
王子光  刘德海 《河南科学》1997,15(2):196-199
以河南省济源柿子为主要原料,采用固态酿造分醋工艺,通过酒精发酵,醋酸发酵生产柿子醋,平均每公斤鲜柿生产二级食醋2.0公斤,产品无浑浊,沉淀,风味质量良好。  相似文献   

3.
柿子酒的生产工艺   总被引:2,自引:0,他引:2  
柿树在我国栽植面积约300万亩,产量较大。经测定,柿子有祛火、润肺、润滑肠胃和防治尿症、咽症、口疮,降血压等食疗药用功能,深受人们喜爱,柿果经发酵后制成的产品中含有人体易吸收的多肽、各种氨基酸、乳酸、醋酸,还有维生素以及矿质元素。柿子酒味道酸甜可口,开胃消食,生津健脾。  相似文献   

4.
<正>柿子是原产于我国的水果,至今还有很多国家把柿子称为"中国的无花果"柿子不但颜色鲜艳、滋味甘美,而且营养丰富,颇具药用价值。根据中医的理论,柿子能"开胃、消痰、止咳、润心肺、清肠胃"。以色列的科学家用现代科学手段证明,小小的柿子中蕴藏着巨大的药用价值。以色列希伯莱大学教授谢  相似文献   

5.
改性柿子粉吸附剂对Cd2+的吸附性能   总被引:2,自引:0,他引:2  
以柿子粉为基体,经丙酮和硫酸缩合改性处理制备柿子生物吸附剂,并对柿子生物吸附剂和原始柿子粉进行红外光谱分析,考察柿子生物吸附剂吸附Cd2+的影响因素如初始pH、温度、时间等,研究吸附动力学、等温吸附模型以及吸附剂的循环再生性能.研究结果表明:改性处理增加了对重金属离子有吸附作用的活性官能团数目并降低了柿子粉的水溶性;柿子生物吸附剂对Cd2+的吸附过程可以很好地用准二级动力学方程描述;吸附等温线均符合Langmuir和Freundlich方程;改性柿子生物吸附剂对Cd2+的最大吸附量为82.78 mg/g.  相似文献   

6.
江飞  张旭伟  高庆 《科技信息》2011,(14):I0131-I0132
本文通过正交试验确定了柿子醋生产过程中酒精发酵的最佳工艺参数;发酵温度,发酵周期,接种量;正交试验确定了醋酸发酵的主要工艺参数;初始酒精度,发酵温度,醋酸菌接种量。醋酸发酵液经过过滤直接作为调料品,也可以调成不同风味的果醋饮料。  相似文献   

7.
柿子红色素的提取及稳定性研究   总被引:24,自引:0,他引:24  
目的 为柿子资源进行综合利用和深加工,对柿子红色素的微波提取和稳定性进行研究。方法 利用微波辐射提取法,用紫外分析法研究色素的稳定性。结果 得到微波萃取的适宜工艺条件是以pH=8的柠檬酸-磷酸氢二钠的水溶液,原料与水的质量比为1:6,微波辐射功率为800W,辐射时间180s。结论 该色素属多酚类水溶性色素,适应pH较宽,尤其以中性和弱碱性介质效果较佳。光、热稳定性好,对大多数食品添加剂影响不大。对氧化剂不稳定,对还原剂较稳定,毒理学实验显示安全性高,是一种很有开发前景的食用色素新品种。  相似文献   

8.
时岩 《科技信息》2011,(14):131-132
本文通过正交试验确定了柿子醋生产过程中酒精发酵的最佳工艺参数;发酵温度,发酵周期,接种量;正交试验确定了醋酸发酵的主要工艺参数;初始酒精度,发酵温度,醋酸菌接种量。醋酸发酵液经过过滤直接作为调料品,也可以调成不同风味的果醋饮料。  相似文献   

9.
《今日科技》2009,(8):56-56
衣巧除衣物污渍(二) 除柿子斑:由于陈渍很难清除,所以沾上柿子斑后,应立即用葡萄酒加些浓盐水一起揉搓,然后用温水洗涤液洗除。  相似文献   

10.
毛细管气相色谱法测定无公害柿子中菊酯类农药的残留量   总被引:3,自引:1,他引:2  
建立的一种测定无公害水果柿子中2种拟除虫菊酯农药残留量的毛细管气相色谱法,是样品经丙酮提取、石油醚萃取、柱色谱净化,采用短毛细管柱(OV-101,15 m)进行分析和电子捕获检测器(ECD)检测及外标法定量,结果缩短了色谱分析时间,加标回收率w(氰戊菊酯)为96.81%,w(溴氰菊酯)为81.23%。  相似文献   

11.
柿树叶Vc含量的对比性研究   总被引:1,自引:0,他引:1  
本文对各个时期、各个季节的柿树叶维生素C含量进行了大量 的定量分析和对比性研究,同时严密而完整地说明其生理作用,旨在更好地认识柿树叶的经济价值,使其得以有效的开发和利用。  相似文献   

12.
柿叶有效成分提取分离方法研究   总被引:10,自引:0,他引:10  
本文介绍了柿叶黄酮甙的提取分离方法。即采用70%乙醇为提取剂,以乙酸乙酯为萃取剂进行提取分离可得柿叶黄酮甙。经薄层色谱法、颜色反应法及紫外光谱扫描法进行分析鉴定可知柿叶黄酮甙主要为异槲皮甙(水解为槲皮素)和黄芪甙,并建立了柿叶黄酮甙的定量分析方法。同时还对新采柿叶及存放一段时间的柿叶黄酮含量进行比较,其结果表明柿叶黄酮含量不因存放时间延长而减少。  相似文献   

13.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

14.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

15.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

16.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

17.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

18.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

19.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

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