Xinjiang walnut origin traceability researching method

A technology of origin traceability and walnut, which is applied in the agricultural field, can solve the problem that the traceability of walnut origin in Xinjiang has not been reported, and achieve the effect of good distinction

Active Publication Date: 2017-08-11
TARIM UNIV
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Problems solved by technology

At present, there are more and more applications of food origin traceability, involving more and more fields. There have been some studies on the fingerprint

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  • Xinjiang walnut origin traceability researching method
  • Xinjiang walnut origin traceability researching method
  • Xinjiang walnut origin traceability researching method

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Embodiment Construction

[0027] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0028] 1 Materials and methods

[0029] 1.1 Walnut varieties and origin

[0030] The walnuts in this research come from Hotan, Kashi and Aksu in Xinjiang. The main varieties include: Wen 185, Zha 343, Xinfeng, Xinxin 2, Xin 2 and so on. The distribution of each walnut variety and region is detailed in Table 1. Walnut sampling regions and sample information. A total of 37 walnut samples were sampled in the three regions, and 15 walnuts were taken from each sample and ground to a finer powder. Because walnut kernels contain a lot of oil, Finally, it is in the form of walnut mud or powder, and the powdered walnut powder can pass through a 100-mesh sieve. The ground walnut powder was put into a ziplock bag for the following experiment, with a total of 555 samples. The study used near-infrared, mid-infrared spe...

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Abstract

The invention discloses a Xinjiang walnut origin traceability researching method. By collecting walnut in Hetian region, Kashgar region and Akesu region of Xinjiang as research objects, a plurality of technologies of near infrared spectroscopy analysis, mid-infrared spectroscopy analysis and element determination analysis are used, a PLSDA method and a variance analysis are combined for distinguishing the walnuts from different producing areas, the result shows that the near infrared distinguishing effect is good, the distinguishing accuracy of a modeling set and a prediction set in the Kashgar region and Akesu region is 100%, the distinguishing accuracy of the modeling set and the prediction set in the Hetian region can reach as high as 99%; the mid-infrared distinguishing accuracy is high, the kind distinguishing accuracy of Xinfeng, Xin2, Zha343 can reach as high as 100%; the content of elements of same kind of walnut has obvious difference among the regions, and Ca and Na elements of the types of Xin2 and Wen185 have obvious difference. The near infrared and mid-infrared analysis and elemental analysis used for traceability of the walnut producing area have good distinguishing effect.

Description

technical field [0001] The invention belongs to the field of agricultural technology and relates to a research method for tracing the origin of walnuts in Xinjiang, in particular to a research method for tracing the origin of walnuts in Xinjiang based on infrared technology and elemental analysis. Background technique [0002] Walnut is an excellent dried fruit food containing protein, cellulose, vitamins, fat and other nutrients. It is very nutritious, easy to digest and absorb, and has certain medicinal value. It is known as one of the four major dried fruits in the world. As an important agricultural product resource, the quality of walnuts is closely related to the place of origin. Traceability of the origin of walnuts is of great significance to the protection of our country's characteristic agricultural products. Xinjiang is also the main producing area of ​​walnuts in my country. Among them, Hotan, Aksu, and Kashgar can produce a large amount of walnuts. The walnuts p...

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Application Information

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IPC IPC(8): G01N21/73
CPCG01N21/73
Inventor 宋丽军张丽潘磊庆顾欣哲夷娜徐蓓蓓侯旭杰
Owner TARIM UNIV
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