Method for identify kiwi fruits from different producing areas by means of combination of electronic tongue and partial least squares analysis method

Abstract

The invention discloses a method for identify kiwi fruits from different producing areas by means of combination of an electronic tongue and a partial least squares analysis method. The method includes: collecting kiwi fruit samples from Hunan, Shaanxi and Sichuan; peeling the kiwi fruit samples and then carrying out freeze drying; respectively adding water into the kiwi fruit samples subjected tofreeze drying for manufacturing a plurality of samples in different regions; sealing and placing the samples under the condition of 20 DEG C to 25 DEG C, so that solution generated by the sample is collected by using the electronic tongue; determining electronic tongue sensor response values of methane, ethanol, alkane, oxynitride, aromatic components and organic sulfide in the solution, and respectively marking the parameters as Y(Hunan), Y(Shaanxi) and Y(Sichuan). According to a discrimination model, an electronic tongue system is utilized to extract and detect fruit compounds, sources of fruit production places are rapidly discriminated, characteristic differences of the compounds of fruits from different territory sources are analyzed by combining a partial least square analysis method, and the fruit production places are discriminated and classified by utilizing the characteristic differences.

Description

technical field [0001] The invention relates to the technical field of identifying kiwifruit from different origins, in particular to the identification of kiwifruit from different origins by an electronic tongue combined with partial least squares analysis. Background technique [0002] In recent years, the development of China's fruit industry has shown an upward trend, and there are a large number of registered geographical indication products. However, at present, the competitiveness of domestic geographical indication products is weak, and the phenomenon of false ones is serious, which limits the sustainable development of the local characteristic brand industry. Therefore, it is urgent to establish an efficient and practical fruit origin identification technology to ensure the authenticity of regional brand products and facilitate fruit quality and safety supervision. [0003] The aroma substances in agricultural products are affected by the special geographical and c...

AI Technical Summary

Problems solved by technology

However, at present, the competitiveness of domestic geographical indication products is weak, and the phenomenon of false ones is serious, which limits the sustainable development of local characteristic brand industries