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桑叶
相关语句
  mulberry leaf
    The Comprehensive Utilization and Development of Mulberry Leaf
    桑叶的综合利用和开发
短句来源
    Studies on the Natural Dyestuff Extracted From Mulberry Leaf and it’s Stability
    桑叶天然染料的萃取和稳定性研究
短句来源
    This paper give information for make headway recently of the comprehensive utiliaz-tion and development of mulberry leaf. The contents include the functional factor of mulberry leaf and application to medicine and application to food and application for raise other animals.
    本文介绍了国内外对桑叶综合利用和开发的最新进展,内容包括桑叶的功能性因子、桑叶在医药上的应用、食品上的开发应用和其他动物饲养中的应用四个方面。
短句来源
  相似匹配句对
    The Comprehensive Utilization and Development of Mulberry Leaf
    桑叶的综合利用和开发
短句来源
    Studies on the Natural Dyestuff Extracted From Mulberry Leaf and it’s Stability
    桑叶天然染料的萃取和稳定性研究
短句来源
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  mulberry leaf
The influence of oral intake of an antibiotic (Norfloxacin?) through mulberry leaf at two concentrations (50 and 100 ppm) on the feed conversion efficiency parameters of silkworm hybrids, viz.
      
A second primer set (XF176f and XF686r) amplified a 511-bp fragment specific to 98 PD strains, but not from strains of citrus variegated chlorosis, mulberry leaf scorch, oak leaf scorch, periwinkle wilt, phony peach, or plum leaf scald.
      
An Evolutionary Perspective of Pierce's Disease of Grapevine, Citrus Variegated Chlorosis, and Mulberry Leaf Scorch Diseases
      
Changes in Mulberry Leaf Metabolism in Response to Water Stress
      
Mulberry Leaf Metabolism under High Temperature Stress
      
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Urushi wax is extracted from the seed of lacquertree,sapareted andidentified by infrared spectrum.Triacontanol as a hormone exists in urushi waxand some preliminary experiments to extract triacontanol are made in the paper.

三十烷醇是一种植物激素。作者从漆籽中提取漆蜡,经萃取分离后的红外光谱图鉴定确定了漆蜡中含有三十烷醇,并进行了初步提取试验。目前国内外对三十烷醇作为农作物的有效生长调节剂,进行了各方面的研究。我国自1979年厦门大学学报发表了从蜂蜡、糠蜡中分离提取三十烷醇的工艺报告后,随即又有不少高等院校和研究单位投入了相当的力量,对产品的制备、产品分析、生理活性和田间试验进行了研究,但其提取工艺方法与厦门大学报道的相似。三十烷醇是一种长碳链脂肪醇,即在直链上带有三十个碳原子,称为正三十烷醇。分子式:CH_3(CH_1)_(28)CH_2OH,分子量:438.8,熔点:85.5~86.5℃,纯品呈白色鳞状晶体。许多种植物蜡和虫蜡中,如:向日葵、桑叶、棉花、苜蓿、玉米、茶叶、蔗糖以及蔬菜水果中都含有三十烷醇。但含量最高的是在蜂蜡中,我国蜂蜡中含量高达30%左右,所以又称为蜂花醇。它以高级脂肪酸酯形式广泛存在于自然中。本研究目的,是为了探索漆蜡中是否含有三十烷醇。

This paper give information for make headway recently of the comprehensive utiliaz-tion and development of mulberry leaf.The contents include the functional factor of mulberry leaf and application to medicine and application to food and application for raise other animals.

本文介绍了国内外对桑叶综合利用和开发的最新进展,内容包括桑叶的功能性因子、桑叶在医药上的应用、食品上的开发应用和其他动物饲养中的应用四个方面。

It has been found that the light absorption curve of liquid extracted from the mulberry leaves by water is similar to that by hydrochloric acid. The most influence factor on extracting natual dye from the mulberry leaves is the type of extractant. The sodium hydroxide is an effective extractant when it is used at the concentration of 20%, which can make the liquid color to become deep and get a high light absorption value. The solution of three extractants have good stability against light and reduction and...

It has been found that the light absorption curve of liquid extracted from the mulberry leaves by water is similar to that by hydrochloric acid. The most influence factor on extracting natual dye from the mulberry leaves is the type of extractant. The sodium hydroxide is an effective extractant when it is used at the concentration of 20%, which can make the liquid color to become deep and get a high light absorption value. The solution of three extractants have good stability against light and reduction and could be kept for days under certain condition. The ability against oxidation of the extraiting liquid with water or hydrochloric acid is poor whereas that of the extracting liquid with sodium hydroxide is better. The mulberry leaf dying liquid extracted at one times can supply the use for several days,which save time ,labor and reduce cost, and is advantageous to practical development of the mulberry leaf dye.In order to seek developing ways of multi use for mulberry leaf, the factors to influence effective extracting dye liquid from the mulberry leaves and its stability have been studied.

为寻求桑叶多用途开发的路径 ,采用正交实验法及单因子实验法 ,研究了对桑叶染液有效萃取的影响因子 ,并对萃取液的稳定性进行了探讨。发现桑叶的水萃取液和盐酸萃取液的光吸收曲线相似。桑叶天然染料萃取的最大影响因子是萃取剂的种类 ,NaOH是有效的萃取剂 ,最佳浓度为 2 0 % ,其萃取液的色浓、光密度值大。 3种萃取液的光稳定性和抗还原性能均较好 ,可在一定的条件下保存几天 ,其中H2 O和HCl萃取液的抗氧化性能较弱 ,而NaOH萃取液的稳定性则较好。一次萃取一定量的桑叶染液可供给几天染色用 ,如此可减少提取桑叶染液的次数 ,节约时间、劳力及能耗 ,有利于桑叶染料实用化开发。

 
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