Lithocarpus

Lithocarpus的基本解释

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石柯属

与Lithocarpus相关的网络例句 [注：此内容来源于网络，仅供参考]

First, this research developed a set of simple and effective technologies for preparative extraction and separation of flavonoid and phloridzin from Lithocarpus polystachyus, which includes:(1) Microwave-assisted extraction of flavonoid from tender leaves of Lithocarpus polystachyus Rehd. The extraction conditions are as the follows, 1.2 % of Ca2 water solution, solid-liquid ratio of 1:12, pre-boiling for 5 min, 800 W of microwave treating for 25 min.

本研究首先研发出一套简单、有效的制备性提取分离多穗柯黄酮类及其根皮苷工艺，这套工艺包括：(1)微波辅助氢氧化钙水溶液提取多穗柯黄酮，最佳工艺条件为用1.2 %氢氧化钙水溶液为提取液，料液比1：12，预煮时间5min，微波功率800W处理25min。

Using design of L9 (3^4), the extraction conditions of total flavonoids from Lithocarpus polystachyus Rehd. in Huaihua were optimized by ethanol solution extraction assisted with ultrasonic, and the variety trends of total flavonoids content were investigated with different natural storage time, different gathering seasons, differrent Lithocarpus polystachyus Rehd.

以怀化产多穗柯为原料，采取乙醇为溶剂超声波辅助提取，以L9(3^4)正交试验方法优化总黄酮提取工艺，然后在该工艺条件下对自然存放时间不同、采摘季节不同、不同叶的多穗柯原料进行总黄酮含量的动态变化考察。

Leaves. Result: Extraction temperature had effect on total flavonoids yield, and ethanol concentration had more obvious effect than extraction temperature. The more natural storage time, the less total flavonoids content, and the average descent rate was 24.74% per year. The flavonoids content from Lithocarpus polystachyus Rehd. gathered between August and October was the highest. The total flavonoids content was higher in the new leaves of Lithocarpus polystachyus Rehd.

结果：乙醇体积分数对总黄酮提取量有显著影响，提取温度对总黄酮提取量有影响；多穗柯自然存放时间越长，总黄酮含量越低，平均每年下降24.74%；不同季节采摘的多穗柯其总黄酮含量以8~10月最高；经对怀化多穗柯嫩叶和老叶中总黄酮的提取测定表明，多穗柯中嫩叶总黄酮含量最高，二年生最低。

与Lithocarpus相关的网络解释 [注：此内容来源于网络，仅供参考]

Lithocarpus：石栎属

该地土壤主要为红壤和黄壤,地带性植被为常绿阔叶林,主要有壳斗科的青冈属(Cyclobalanopsis)、栲属(Castanopsis)、石栎属(Lithocarpus),山茶科的木荷属(Schima),樟科的润楠属(Machilus)、楠木属(Phoebe)和樟属(Cinnamomum)是群落的乔木层优势种,

Lithocarpus：石柯属

"知道知道",我的职业神经马上反应,"它的学名叫多穗石柯(Lithocarpus Polystachys Rehd Tea)属于壳斗科(Fagaceae),石柯属(Lithocarpus)常绿小乔木. 俗称'甜茶',一般只在你们那种海拔800~1500米的大山上才有". 他知道我心直口快,

Lithocarpus：柯属

这里除了在山地南坡低地或沟谷中因受小地形隐蔽、水热条件优良的情况下,尚偶见有南部分布过来的亚热带季风常绿阔叶林的种类成分或局部的热带林的层片外,一般山地森林植被皆以壳斗科树种占优势,主要是常绿的栲属(Castanopsis)、柯属(Lithocarpus)和栎属(Quercus),

Lithocarpus：硬壳柯

Ilex rotunda var. micr ocarpa 小果铁冬青Keteleeria fortunei 油杉 | Lithocarpus 硬壳柯 | Lithocarpus glaber 柯

Lithocarpus glaber：石栎

中低山及低山分布的常绿落叶阔叶混交林,一般分布在海拔800米以下山地,组成混交林的常绿阔叶树,主要是樟科、壳斗分布在南部山区常德的仙池山,板页岩红壤,乔木层以栎类为主,有小叶栎(Quercus grai li S)白栎(Q.1abri)、石栎(LithOCarpus glaber)、青冈栎、黄檀、樟