Near infrared detection method for procyanidine content of grape pips

• Main Authors: TAO XIAOQING, LIAN YUNHE, YANG QINGSHAN, CHENG YUANXIN, HUO SHUXIANG
• Format: Patent
• Language: Chinese; English
• Published: 15.03.2019
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a near infrared detection method for procyanidine content of grape pips and belongs to the field of a detection method. The method comprises the following steps: pretreating grape pip samples; measuring the procyanidine content of the grape pip samples by a hydrochloric acid-normal butanol method; scanning by a near infrared spectroscopy to acquire spectroscopic data of thegrape pip samples; establishing a near infrared spectral model of the procyanidine content by combining a spectroscopic data pretreatment method with a stoichiometric modeling method; and taking theto-be-measured grape pip samples, acquiring spectral information data of the to-be-measured grape pip samples and substituting into the near infrared spectral model to acquire the procyanidine contentof the grape pip samples. By the method, the sample treatment process can be simplified; the detection time can be shortened; and rapid and accurate detection of the procyanidine content of the grapepip samples can be realized