种皮

ConclusionCompounds 1- 4 were obtained from this family for the first time and 5-7 were obtained from its spermoderm for the first time.

化合物1～4为首次从本属植物中分得，5～7为首次从文冠果种皮中得到。

ObjectiveTo study the chemical constituents of the spermoderm of Xanthoceras sorbifolia Bunge.

目的研究文冠果Xanthoceras sorbifolia Bunge种皮的化学成分，为文冠果综合开发利用打下科学基础。

MethodsThe ethyl acetate fractions from MeOH extracts of the spermoderm of Xanthoceras sorbifolia were partitioned and purified by means of several separation methods.

方法采用多种分离技术对文冠果种皮甲醇提取物的醋酸乙酯部位分离纯化，根据其理化性质和光谱数据进行结构鉴定。

Seeds ellipsoid to subglobose; seed coat almost smooth.

种子椭圆形到近球形；种皮几乎平滑。

The extracts of Torreya grandis epispem were obtained by both supercritical CO2 extraction and steam distillation, and their chemical compositions were analyzed by GC-MS qualitatively and quantitatively.

分别采用超临界CO2萃取法和水蒸气蒸馏法提取香榧外种皮提取物，并采用GC-MS分析手段对提取物的化学组成进行了定性和定量测定。

They therefore considered the possibility of using nanoparticles to penetrate the tough coats that surround unsprouted seeds.

因此他们研究了用纳米粒子穿透未发芽种子坚固种皮的可能性。

The SPC-2S fraction with 30% EtOH were constituted epicatechin and epicatechin gallate ester ;The SPC-2S fraction with 50% EtOH contained epicatechin and dimeric procyanidins, another SPC-3S contained epicatechin ,dimeric procyanidins and trimeric procyanidns ;Dimeric procyanidins and trimeric procyanidns constitute SPC-5S fraction;monomer dimer trimer tetramer pentamer of procyanidins were the major fractions in 70% acetone elute solution.

1和 2.01：1，也以添加0.1%SPC酒样中两者的比例最为协调；对小曲酒中酸的影响表现为，添加SPC后有利于降低酒样中乙酸的含量，各酒样中乙酸的量随着SPC添加量高粱外种皮中原花青素及其对小曲白酒挥发性成分影响机制研究的增加而降低；对醛类的影响为，添加SPC可降低酒样中糠醛的含量，其中以添加 0.1%SPC酒样中含量最低，为对照组的39.3%，而4个酒样中乙醛含量则无明显差别；低SPC添加量有降低酒样中杂醇油含量的趋势。

Reciprocal crosses between red and achromatic rice revealed that the seed color of F1 was determined by its female parent.

在未成熟的种子中，种皮是累积叶绿素的部位，在成熟种子中叶绿素消失。

Theα-amylase activity significantlyaffected PHS percentage for non-waxy wheat varieties, and soluble sugar content ingrains was significantly related to pre-harvest sprouting percentage in waxy wheat.

糯小麦的α-淀粉酶活性与正常小麦无显著差异，籽粒可溶性糖含量显著高于正常小麦，同时部分糯小麦籽粒还存在中空和种皮裂纹现象。

RFLPs between Hei-zhen-mi and Basmati 370 were assayed using 121 DNA probes.

结果表明，有一个显性主效基因控制着黑珍米和Basmati 370在种皮颜色上的差异。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。