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Method for tracing silk production places on basis of stable isotope technique

A stable isotope, origin traceability technology, applied in measuring devices, instruments, material analysis by electromagnetic means, etc., can solve the problem of no further research on silk traceability.

Inactive Publication Date: 2017-10-24
ZHEJIANG SCI-TECH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the physicist Thomson discovered stable isotopes in 1912, this technique has been widely used in traditional fields such as medicine, biology, food science, environmental science, hydrogeology, etc. In recent years, it has even been applied to non-traditional geosciences such as archaeology Some foreign scholars have conducted research on the traceability of the origin of wool, but there is no further research on the traceability of silk. Therefore, the author started from this aspect and used the stable isotope technology to trace the origin of silk.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] 一种以稳定同位素技术为基础对丝绸产地溯源的方法,包括以下步骤:

[0032] 1)、分别收集多个不同地区的蚕茧,并分别采集上述地区养殖地的灌溉水、地表土壤、地下土壤、桑枝、桑叶,分别标记封存。

[0033] 2)将采集的蚕茧分别置于烘箱中烘干。烘干温度为85℃,烘干时间为3h。

[0034] 3)选取新鲜、色泽饱满、无虫蛀、无病斑的桑叶、桑枝、地表土壤和地下土壤,分别置于烘箱中,烘干。烘干温度为85℃,烘干时间为3h。

[0035] 4)从干燥后的蚕茧中随机选取4个蚕茧,剪开取出蚕蛹并用球磨机磨碎,磨碎后的蚕茧粉末过筛(100目),然后转移至自封袋中,标记后放人干燥器中保存待测。

[0036] 5)从步骤3)干燥后的桑叶中随机选取10片,用球磨机充分研磨,研磨后的粉末过筛(100目),然后转移至自封袋中,标记后放人干燥器中保存待测。

[0037] 6)将步骤3)中干燥后的桑枝,折成若干段后,用球磨机充分研磨,研磨后的粉末过筛(100目),然后转移至自封袋中,标记后放人干燥器中保存待测。

[0038] 7)分别称取1mg步骤4)和5)中的蚕茧、桑叶、桑枝、地表土壤、地下土壤,用锡箔杯包好后通过自动采样器分别送入元素分析仪Flash HT 2000,此样品中的碳元素和氮元素转化为纯净的CO和 N 2 ,进入系统进行固体C、N同位素检测;每个样品重复测三次取平均值。

[0039] 8)用标准注射器吸取权利要求1)中采集的水样,过0.2μm水系滤膜,装满2mL的进样瓶,经自动进样系统检测水中H、O。每个样品重复测三次取平均值。

[0040] 9)分别称取1mg步骤4)和5)中的蚕茧、桑叶、桑枝、表土壤、地下土壤,用锡箔杯包好后通过自动采样器分别送入元素分析仪Flash HT 2000,此样品中的氢和氧被反应炉中的玻璃化碳粒还原为H2 and CO; solid H, O isotope detection. Each sample was measured three times and averaged.

[0041] 10) Take silkworm cocoons, mulberry leaves, mulberry branches, surface soil, and und...

Embodiment 2

[0049] A method for tracing the origin of silk based on stable isotope technology, comprising the following steps:

[0050] 1) Collect silkworm cocoons from different regions, and collect irrigation water, surface soil, underground soil, mulberry branches, and mulberry leaves from the breeding grounds in the above-mentioned areas, and mark them for storage.

[0051] 2) The collected cocoons were placed in an oven to dry. The drying temperature is 70°C, and the drying time is 4h.

[0052] 3) Select fresh mulberry leaves, mulberry branches, surface soil and underground soil that are fresh, full of color, free from insects and disease spots, and place them in an oven for drying. The drying temperature is 70°C, and the drying time is 4h.

[0053] 4) Randomly select 3 silkworm cocoons from the dried silkworm cocoons, cut out the silkworm chrysalis and grind them with a ball mill. The ground silkworm cocoon powder is sieved (80 mesh), then transferred to a ziplock bag, marked and ...

Embodiment 3

[0067] A method for tracing the origin of silk based on stable isotope technology, comprising the following steps:

[0068] 1) Collect silkworm cocoons from different regions, and collect irrigation water, surface soil, underground soil, mulberry branches, and mulberry leaves from the breeding grounds in the above-mentioned areas, and mark them for storage.

[0069] 2) The collected cocoons were placed in an oven to dry. The drying temperature is 70℃-100℃, and the drying time is 2-4h.

[0070] 3) Select fresh mulberry leaves, mulberry branches, surface soil and underground soil that are fresh, full of color, free from insects and disease spots, and place them in an oven for drying. The drying temperature is 100°C, and the drying time is 2h.

[0071] 4) Randomly select 6 silkworm cocoons from the dried silkworm cocoons, cut out the silkworm chrysalis and grind them with a ball mill. The ground silkworm cocoon powder is sieved (120 mesh), then transferred to a ziplock bag, mar...

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Abstract

The invention relates to the field of textile testing and discloses a method for tracing silk production places on the basis of a stable isotope technique. The stable isotope technique is adopted for tracing the silk production places by testing isotopic values of hydrogen, oxygen, carbon and nitrogen and strontium in mulberry leaves, mulberry twigs, silkworm cocoons and soil and isotopic values of hydrogen and oxygen in water samples, results are finally subjected to clustering analysis, and the silk production places are traced. Transfer and transformation of metabolites can be accurately and quantitatively determined by the aid of the stable isotope technique, and the silk production places can be scientifically and stably traced.

Description

technical field [0001] The invention relates to the field of textile detection, in particular to a method for tracing the origin of silk based on stable isotope technology. Background technique [0002] my country is the first country in the world to plant mulberry, raise silkworms, reel silk, and weave silk, and it is the only such country for a long period of history. According to historical records, the earliest silk weaving center in my country can be traced back to about 2,500 years ago. The vast literature can only witness that the production and dissemination of silk dominated the ancient manufacturing industry and luxury goods trade; and the origin of silk和传播的神话传说却不能令人信服。 Although the research of geneticists in recent years has provided some evidence for the biological origin and domestication details of silk, it is believed that silkworms are domesticated from wild silkworms, and then the focus of the problem is that the domestication of silkworms is a single orig...

Claims

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Application Information

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IPC IPC(8): G01N33/36G01N33/24G01N27/62G01N33/00
CPCG01N33/362G01N27/626G01N33/00G01N33/0098G01N33/24
Inventor 赵丰路婧中彭志勤韩丽华万军民
Owner ZHEJIANG SCI-TECH UNIV
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