Method for quickly pre-judging attenuation speed of natural pigment

• Main Authors: ZHANG XIAONAN, QIAN JIANRUI, CHENG YUANXIN, SHI WENJIE, ZHANG PINGPING
• Format: Patent
• Language: Chinese; English
• Published: 13.07.2021
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a method for quickly pre-judging the attenuation speed of natural pigment. The method comprises the following steps: selecting a representative natural pigment sample, and collecting a near infrared initial spectrum; storing the selected sample under the condition of 25-50 DEG C, determining the pigment content once every 10-90 days by using a chemical method, and calculating the content loss rate or loss value; establishing a near-infrared prediction model according to the content loss rate or the content loss value of the corresponding storage time and the initial spectrum; according to the prediction model, predicting the content loss value or the content loss rate value of a to-be-detected sample after the to-be-detected sample is stored for corresponding time, drawing a content attenuation trend chart, and according to the content attenuation trend chart, predicting the content attenuation conditions of the to-be-detected sample at different time. The method is suitable for pre-ju